Weitz Investment Management, INC. Institutional Portfolio (13F)

CIK: 0000883965

Diversified strategyMomentum followerQuality / disciplined sizing

Total reported value

$1.4B

Reporting period: 2026-03-31 · Number of holdings: 49

WEITZ INVESTMENT MANAGEMENT, INC. disclosed 49 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $1.4B and a quarterly turnover rate of 23.0%.

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Personality snowflake

Concentration: 16.42
Portfolio Stability: 22.97
Momentum/Contrarian: 100
Sector conviction: 51.13
Diversification: 98
Sizing Uniformity: 89.84

Weitz Investment Management, INC.'s disclosed holdings carry a Herfindahl concentration index of 0.041 — mathematically equivalent to about 24 equally-sized positions, well below its 49 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.

Position sizes are fairly uniform across the portfolio (a coefficient of variation of 1.02), suggesting a disciplined, rules-based approach to how much capital goes into each idea.

No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.

Recent moves

Trim CSGP
-28.2%　-$27.5M
Add BRK-B
-2.8%　-$10.6M
Trim GPN
-33.7%　-$16.5M
Trim DHR
-7.0%　-$27.1M
Trim IEX
-32.5%　-$19.6M
Add MELI
+116.2%　$6.4M

Holdings Map

New buyAddUnchangedTrim

Top 10 holdings by weight

Full holdings list this quarter

#	Ticker	Issuer	Asset Subclass	Weight	Weight Change	Shares Change
1	BRK-B	Berkshire Hathaway Inc-cl B	Stock-Other	9.33%	+0.78%	-2.79%
2	GOOG	Alphabet Inc-cl C	Stock-Comm Services	6.54%	+0.07%	-6.08%
3	DHR	Danaher CORP	Stock-Healthcare	6.32%	-0.66%	-7.04%
4	V	Visa Inc-class A Shares	Stock-Financials	5.60%	-0.03%	-1.94%
5	MA	Mastercard INC - A	Stock-Financials	5.13%	-0.15%	-5.71%
6	AON	Aon plc	Stock-Financials	4.82%	+0.24%	-2.23%
7	MSFT	Microsoft CORP	Stock-Tech	4.38%	+0.19%	+16.08%
8	META	Meta Platforms Inc-class A	Stock-Comm Services	4.22%	-0.03%	-2.76%
9	TMO	Thermo Fisher Scientific INC	Stock-Healthcare	4.15%	-0.49%	-10.34%
10	VMC	Vulcan Materials Co	Stock-Materials	4.07%	+0.52%	+1.90%
11	IEX	Idex CORP	Stock-Industrials	3.50%	-0.63%	-32.49%
12	AMZN	Amazon.com INC	Stock-Consumer Disc	3.23%	+0.18%	—
13	HEI-A	Heico Corp-class A	Stock-Other	2.78%	+0.34%	+16.10%
14	TECH	Bio-techne CORP	Stock-Healthcare	2.38%	-0.42%	-18.65%
15	ACN	Accenture plc	Stock-Tech	2.36%	-0.20%	+6.09%
16	ADI	Analog Devices INC	Stock-Tech	2.36%	+0.22%	-19.92%
17	EFX	Equifax INC	Stock-Industrials	2.36%	-0.40%	-12.69%
18	TXN	Texas Instruments INC	Stock-Tech	2.17%	+0.47%	-3.03%
19	SIRI	Sirius Xm Holdings INC	Stock-Comm Services	2.08%	+0.44%	-6.58%
20	LBRDK	Liberty Broadband-c	Stock-Comm Services	2.02%	+0.14%	-11.52%
21	LH	Labcorp Holdings INC	Stock-Healthcare	1.84%	+0.36%	-0.70%
22	ODFL	Old Dominion Freight Line	Stock-Industrials	1.80%	-0.14%	-36.78%
23	MLM	Martin Marietta Materials	Stock-Materials	1.63%	+0.11%	-3.63%
24	GPN	Global Payments INC	Stock-Industrials	1.57%	-0.75%	-33.66%
25	CSGP	Costar Group INC	Stock-Real Estate	1.46%	-1.41%	-28.18%
26	IDXX	Idexx Laboratories INC	Stock-Healthcare	1.38%	-0.04%	—
27	CRM	Salesforce INC	Stock-Tech	1.06%	-0.31%	-6.86%
28	ACIW	Aci Worldwide INC	Stock-Tech	1.05%	+0.01%	—
29	MELI	Mercadolibre INC	Stock-Consumer Disc	0.97%	+0.53%	+116.22%
30	PRM	Perimeter Solutions INC	Stock-Other	0.87%	+0.04%	—
31	LKQ	Lkq CORP	Stock-Consumer Disc	0.84%	+0.05%	-7.48%
32	IR	Ingersoll-rand INC	Stock-Industrials	0.74%	+0.74%	NEW
33	EEFT	Euronet Worldwide INC	Stock-Tech	0.74%	+0.02%	—
34	ORCL	Oracle CORP	Stock-Tech	0.56%	-0.25%	-21.43%
35	ASML	ASML Holding N.V.	Stock-Tech	0.51%	+0.51%	NEW
36	TSM	Taiwan Semiconductor-sp Adr	Stock-Tech	0.47%	+0.47%	NEW
37	LBRDA	Liberty Broadband-a	Stock-Other	0.46%	—	-7.14%
38	NVDA	Nvidia CORP	Stock-Tech	0.43%	+0.43%	NEW
39	CDW	Cdw Corp/de	Stock-Tech	0.31%	-0.14%	-35.56%
40	LIN	Linde plc	Stock-Materials	0.25%	+0.07%	—
41	VLTO	Veralto CORP	Stock-Industrials	0.25%	+0.03%	+5.26%
42	POOL	Pool CORP	Stock-Industrials	0.21%	+0.21%	NEW
43	RGEN	Repligen CORP	Stock-Healthcare	0.21%	+0.21%	NEW
44	SPGI	S&p Global INC	Stock-Financials	0.21%	-0.01%	-1.26%
45	CMCSA	Comcast Corp-class A	Stock-Comm Services	0.09%	-0.06%	-44.71%
46	FTV	Fortive CORP	Stock-Tech	0.09%	-0.06%	-50.44%
47	FERG	Ferguson Enterprises INC	Stock-Industrials	0.08%	+0.08%	NEW
48	APH	Amphenol Corp-cl A	Stock-Tech	0.08%	+0.08%	NEW
49	CHTR	Charter Communications Inc-a	Stock-Comm Services	0.01%	—	—

Portfolio Performance

Performance for Q3 2026

+2.5%

Performance Last 4 Quarters

+2.6%

Based on 66% of reported portfolio value with available pricing

Stdev: +14.5%
Beta: +0.96
Alpha: -9.2%
Max Drawdown: -14.3%
Annualized Perf: +7.8%
Batting Avg vs S&P: +30.6%
Sortino: +1
Stutzer: +0.17
Treynor: +0.09
Sterling: +0.38
Calmar: +0.54
Information Ratio: -1.37
Tracking Error: +7.2%
Stdev Down: +8.5%
Winning Months %: +61.1%
Losing Months %: +38.9%
Best 12 Months: +32.5%
Worst 12 Months: -7%
Efficiency Ratio: +0.21
Sharpe: +0.59
Stdev Sectors: +7.5%
Skewness: +0.21
Kurtosis: -0.3
Upside Potential: +2.89

Reported value over time

Sector allocation

Sector allocation over time

Quarterly history

Period	Holdings	Total value	Stability	Top holdings
2026-03-31	49	$1.4B	23	1BRK-B 2GOOG 3DHR Top holdings2026-03-31 1.BRK-B 2.GOOG 3.DHR 4.V 5.MA 6.AON 7.MSFT 8.META 9.TMO 10.VMC
2025-12-31	44	$1.7B	16	1BRK-B 2DHR 3GOOG Top holdings2025-12-31 1.BRK-B 2.DHR 3.GOOG 4.V 5.MA 6.TMO 7.AON 8.META 9.MSFT 10.IEX
2025-09-30	48	$1.8B	21	1BRK-B 2GOOG 3DHR Top holdings2025-09-30 1.BRK-B 2.GOOG 3.DHR 4.V 5.MA 6.META 7.MSFT 8.AON 9.TMO 10.IEX
2025-06-30	45	$1.9B	0	1BRK-B 2V 3DHR Top holdings2025-06-30 1.BRK-B 2.V 3.DHR 4.MA 5.META 6.GOOG 7.AON 8.IEX 9.MSFT 10.CSGP
2025-03-31	45	$1.9B	100	1BRK-B 2V 3DHR Top holdings2025-03-31 1.BRK-B 2.V 3.DHR 4.MA 5.AON 6.IEX 7.CSGP 8.GOOG 9.META 10.TMO
2024-12-31	47	$1.9B	0	1BRK-B 2V 3GOOG Top holdings2024-12-31 1.BRK-B 2.V 3.GOOG 4.MA 5.AON 6.META 7.DHR 8.IEX 9.KMX 10.GPN
2024-09-30	50	$2.0B	0	1BRK-B 2MA 3V Top holdings2024-09-30 1.BRK-B 2.MA 3.V 4.DHR 5.META 6.GOOG 7.AON 8.TMO 9.CSGP 10.KMX
2024-06-30	53	$1.9B	0	1BRK-B 2GOOG 3META Top holdings2024-06-30 1.BRK-B 2.GOOG 3.META 4.V 5.MA 6.DHR 7.AON 8.TMO 9.CSGP 10.KMX
2024-03-31	54	$2.0B	0	1BRK-B 2GOOG 3V Top holdings2024-03-31 1.BRK-B 2.GOOG 3.V 4.MA 5.META 6.DHR 7.CSGP 8.TMO 9.VMC 10.KMX
2023-12-31	55	$1.9B	0	1BRK-B 2GOOG 3V Top holdings2023-12-31 1.BRK-B 2.GOOG 3.V 4.MA 5.DHR 6.META 7.CSGP 8.TMO 9.VMC 10.50540R
2023-09-30	53	$1.8B	0	1GOOG 2BRK-B 3V Top holdings2023-09-30 1.GOOG 2.BRK-B 3.V 4.MA 5.DHR 6.CSGP 7.META 8.TMO 9.VMC 10.LBRDK
2023-06-30	51	$1.9B	0	1BRK-B 2GOOG 3CSGP Top holdings2023-06-30 1.BRK-B 2.GOOG 3.CSGP 4.V 5.MA 6.DHR 7.META 8.VMC 9.50540R 10.LBRDK
2023-03-31	54	$1.7B	0	1GOOG 2BRK-B 3META Top holdings2023-03-31 1.GOOG 2.BRK-B 3.META 4.V 5.MA 6.CSGP 7.DHR 8.50540R 9.LBRDK 10.VMC
2022-12-31	58	$1.8B	0	1BRK-B 2GOOG 3CSGP Top holdings2022-12-31 1.BRK-B 2.GOOG 3.CSGP 4.V 5.MA 6.DHR 7.LSXMKUSD 8.50540R 9.SCHW 10.META
2022-09-30	58	$1.7B	0	1GOOG 2BRK-B 3CSGP Top holdings2022-09-30 1.GOOG 2.BRK-B 3.CSGP 4.V 5.MA 6.DHR 7.LSXMKUSD 8.META 9.LBRDK 10.SCHW
2022-06-30	58	$1.9B	0	1GOOG 2BRK-B 3CSGP Top holdings2022-06-30 1.GOOG 2.BRK-B 3.CSGP 4.V 5.LBRDK 6.MA 7.KMX 8.META 9.50540R 10.DHR
2022-03-31	60	$2.3B	0	1GOOG 2BRK-B 3V Top holdings2022-03-31 1.GOOG 2.BRK-B 3.V 4.CSGP 5.MA 6.LBRDK 7.META 8.LSXMKUSD 9.MKL 10.50540R
2021-12-31	59	$2.5B	0	1GOOG 2BRK-B 3LBRDK Top holdings2021-12-31 1.GOOG 2.BRK-B 3.LBRDK 4.SCHW 5.META 6.V 7.LSXMKUSD 8.MA 9.50540R 10.CSGP
2021-09-30	58	$2.4B	0	1GOOG 2BRK-B 3AON Top holdings2021-09-30 1.GOOG 2.BRK-B 3.AON 4.LBRDK 5.50540R 6.META 7.SCHW 8.V 9.LSXMKUSD 10.MA
2021-06-30	60	$2.4B	98	1GOOG 2BRK-B 3LBRDK Top holdings2021-06-30 1.GOOG 2.BRK-B 3.LBRDK 4.50540R 5.AON 6.META 7.V 8.SCHW 9.MA 10.LSXMKUSD
2021-03-31	60	$2.3B	20	1BRK-B 2GOOG350540R Top holdings2021-03-31 1.BRK-B 2.GOOG 3.50540R 4.AON 5.LBRDK 6.SCHW 7.V 8.MA 9.META 10.LSXMKUSD
2020-12-31	67	$2.3B	13	1BRK-A 2BRK-B 3GOOG Top holdings2020-12-31 1.BRK-A 2.BRK-B 3.GOOG 4.LBRDK 5.50540R 6.V 7.SCHW 8.MA 9.LSXMKUSD 10.AON
2020-09-30	66	$2.1B	14	1BRK-A 2BRK-B 3GOOG Top holdings2020-09-30 1.BRK-A 2.BRK-B 3.GOOG 4.50540R 5.V 6.LBRDK 7.MA 8.CSGP 9.SCHW 10.META
2020-06-30	65	$2.0B	22	1BRK-A 2BRK-B 3GOOG Top holdings2020-06-30 1.BRK-A 2.BRK-B 3.GOOG 4.LBRDK 5.V 6.MA 7.META 8.50540R 9.KMX 10.LSXMKUSD
2020-03-31	69	$1.9B	40	1BRK-A 2BRK-B 3GOOG Top holdings2020-03-31 1.BRK-A 2.BRK-B 3.GOOG 4.LBRDK 5.V 6.MA 7.50540R 8.META 9.LBTYA 10.LSXMKUSD
2019-12-31	68	$2.5B	13	1BRK-A 2BRK-B 3LBRDK Top holdings2019-12-31 1.BRK-A 2.BRK-B 3.LBRDK 4.GOOG 5.50540R 6.V 7.MA 8.LSXMKUSD 9.LBTYA 10.META
2019-09-30	72	$2.5B	14	1BRK-A 2BRK-B 3LBRDK Top holdings2019-09-30 1.BRK-A 2.BRK-B 3.LBRDK 4.GOOG 5.50540R 6.MA 7.V 8.35Y 9.LBTYA 10.META
2019-06-30	72	$2.5B	9	1BRK-A 2BRK-B 3LBRDK Top holdings2019-06-30 1.BRK-A 2.BRK-B 3.LBRDK 4.GOOG 5.50540R 6.MA 7.V 8.LBTYA 9.META 10.KMX
2019-03-31	75	$2.4B	23	1BRK-A 2BRK-B 3LBRDK Top holdings2019-03-31 1.BRK-A 2.BRK-B 3.LBRDK 4.GOOG 5.50540R 6.MA 7.V 8.LBTYA 9.KMX 10.35Y
2018-12-31	82	$2.2B	28	1BRK-B 2BRK-A 3LBRDK Top holdings2018-12-31 1.BRK-B 2.BRK-A 3.LBRDK 4.GOOG 5.50540R 6.MA 7.LBTYA 8.V 9.META 10.ORCL
2018-09-30	79	$2.5B	14	1BRK-B 2BRK-A 3LBRDK Top holdings2018-09-30 1.BRK-B 2.BRK-A 3.LBRDK 4.LBTYA 5.GOOG 6.50540R 7.MA 8.V 9.G0177J 10.ORCL
2018-06-30	79	$2.4B	20	1BRK-B 2LBRDK 3BRK-A Top holdings2018-06-30 1.BRK-B 2.LBRDK 3.BRK-A 4.50540R 5.LBTYA 6.G0177J 7.GOOG 8.V 9.MA 10.LSXMKUSD
2018-03-31	75	$2.4B	23	1BRK-B 2LBRDK 3BRK-A Top holdings2018-03-31 1.BRK-B 2.LBRDK 3.BRK-A 4.LBTYA 5.50540R 6.G0177J 7.GOOG 8.V 9.MA 10.RWT
2017-12-31	77	$2.4B	12	1BRK-B 2LBRDK 3LBTYA Top holdings2017-12-31 1.BRK-B 2.LBRDK 3.LBTYA 4.50540R 5.BRK-A 6.G0177J 7.MA 8.GOOG 9.V 10.LSXMKUSD
2017-09-30	79	$2.4B	11	1BRK-B 2LBRDK 3LBTYA Top holdings2017-09-30 1.BRK-B 2.LBRDK 3.LBTYA 4.50540R 5.G0177J 6.BRK-A 7.MA 8.GOOG 9.V 10.USA
2017-06-30	74	$2.3B	12	1BRK-B 2LBRDK 3LBTYA Top holdings2017-06-30 1.BRK-B 2.LBRDK 3.LBTYA 4.50540R 5.G0177J 6.BRK-A 7.MA 8.USA 9.GOOG 10.V
2017-03-31	83	$2.4B	12	1LBRDK 2BRK-B 3LBTYA Top holdings2017-03-31 1.LBRDK 2.BRK-B 3.LBTYA 4.G0177J 5.50540R 6.BRK-A 7.MA 8.USA 9.XXI 10.GOOG
2016-12-31	86	$2.5B	24	1BRK-B 2LBRDK 3LBTYA Top holdings2016-12-31 1.BRK-B 2.LBRDK 3.LBTYA 4.G0177J 5.BRK-A 6.50540R 7.XXI 8.USA 9.LSXMKUSD 10.RWT
2016-09-30	71	$2.7B	16	1BRK-B 2LBTYA 3LBRDK Top holdings2016-09-30 1.BRK-B 2.LBTYA 3.LBRDK 4.G0177J 5.LSXMKUSD 6.50540R 7.XXI 8.BRK-A 9.USA 10.RWT
2016-06-30	68	$2.7B	29	1BRK-B 2LBTYA 3LBRDK Top holdings2016-06-30 1.BRK-B 2.LBTYA 3.LBRDK 4.G0177J 5.LSXMKUSD 6.USA 7.BRK-A 8.50540R 9.XXI 10.RWT
2016-03-31	65	$2.9B	25	1BRK-B 2LBTYA 3USA Top holdings2016-03-31 1.BRK-B 2.LBTYA 3.USA 4.LBRDK 5.USA 6.BRK-A 7.XXI 8.RWT 9.50540R 10.G0177J
2015-12-31	67	$2.9B	23	1LBTYA 2BRK-B 3USA Top holdings2015-12-31 1.LBTYA 2.BRK-B 3.USA 4.USA 5.BRK-A 6.740189 7.AXP 8.LBRDK 9.50540R 10.TDG
2015-09-30	68	$3.2B	27	1LBTYA 2BRK-B 3USA Top holdings2015-09-30 1.LBTYA 2.BRK-B 3.USA 4.USA 5.VALE 6.TDG 7.BRK-A 8.740189 9.RRC 10.AXP
2015-06-30	67	$3.6B	16	1LBTYA 2BRK-B 3VALE Top holdings2015-06-30 1.LBTYA 2.BRK-B 3.VALE 4.USA 5.USA 6.TDG 7.BRK-A 8.RRC 9.DISCKUSD 10.AXP
2015-03-31	65	$3.7B	15	1LBTYA 2BRK-B 3VALE Top holdings2015-03-31 1.LBTYA 2.BRK-B 3.VALE 4.USA 5.USA 6.AXP 7.TDG 8.BRK-A 9.RRC 10.MLM
2014-12-31	71	$3.6B	36	1LBTYA 2BRK-B 3VALE Top holdings2014-12-31 1.LBTYA 2.BRK-B 3.VALE 4.USA 5.AXP 6.USA 7.RWT 8.TDG 9.RRC 10.50540R
2014-09-30	65	$3.4B	23	1VALE 2LBTYA 3BRK-B Top holdings2014-09-30 1.VALE 2.LBTYA 3.BRK-B 4.USA 5.USA 6.25490A 7.AXP 8.WFC 9.TXN 10.TDG
2014-06-30	62	$3.3B	18	1USA 2VALE 3LBTYA Top holdings2014-06-30 1.USA 2.VALE 3.LBTYA 4.BRK-B 5.USA 6.25490A 7.WFC 8.AXP 9.RWT 10.TXN
2014-03-31	63	$3.1B	20	1VALE 2LBTYA325490A Top holdings2014-03-31 1.VALE 2.LBTYA 3.25490A 4.BRK-B 5.USA 6.USA 7.WFC 8.RWT 9.TDG 10.TXN
2013-12-31	62	$3.0B	22	1VALE 2LBTYA 3USA Top holdings2013-12-31 1.VALE 2.LBTYA 3.USA 4.25490A 5.BRK-B 6.RWT 7.WFC 8.TXN 9.ICLR 10.TDG
2013-09-30	60	$2.7B	16	1VALE 2AON 3BRK-B Top holdings2013-09-30 1.VALE 2.AON 3.BRK-B 4.25490A 5.RWT 6.LBTYA 7.TXN 8.WFC 9.USA 10.9990302D
2013-06-30	61	$2.5B	0	1VALE225490A3AON Top holdings2013-06-30 1.VALE 2.25490A 3.AON 4.BRK-B 5.WFC 6.LBTYA 7.TXN 8.RWT 9.USA 10.ICLR

Holding changes this quarter

Weitz Investment Management, INC.'s most significant position changes for 2026-03-31: Sold out: Roper Technologies INC (ROP); New buy: Ingersoll-rand INC (IR); New buy: ASML Holding N.V. (ASML); New buy: Taiwan Semiconductor-sp Adr (TSM); Sold out: Gartner INC (IT).

Position changes disclosed by Weitz Investment Management, INC. for the quarter ending 2026-03-31, including ticker, issuer, weight change, shares change, and action
#	Ticker	Issuer	Weight Change	Shares Change	Action
1	BRK-B	Berkshire Hathaway Inc-cl B	+0.8%	-2.79%	Trim
2	MELI	Mercadolibre INC	+0.5%	+116.22%	Add
3	VMC	Vulcan Materials Co	+0.5%	+1.90%	Add
4	TXN	Texas Instruments INC	+0.5%	-3.03%	Trim
5	SIRI	Sirius Xm Holdings INC	+0.4%	-6.58%	Trim
6	LH	Labcorp Holdings INC	+0.4%	-0.70%	Trim
7	HEI-A	Heico Corp-class A	+0.3%	+16.10%	Add
8	AON	Aon plc	+0.2%	-2.23%	Trim
9	ADI	Analog Devices INC	+0.2%	-19.92%	Trim
10	MSFT	Microsoft CORP	+0.2%	+16.08%	Add
11	AMZN	Amazon.com INC	+0.2%	—	Unchanged
12	LBRDK	Liberty Broadband-c	+0.1%	-11.52%	Trim
13	MLM	Martin Marietta Materials	+0.1%	-3.63%	Trim
14	GOOG	Alphabet Inc-cl C	+0.1%	-6.08%	Trim
15	LIN	Linde plc	+0.1%	—	Unchanged
16	LKQ	Lkq CORP	+0.1%	-7.48%	Trim
17	PRM	Perimeter Solutions INC	0%	—	Unchanged
18	VLTO	Veralto CORP	0%	+5.26%	Add
19	EEFT	Euronet Worldwide INC	0%	—	Unchanged
20	ACIW	Aci Worldwide INC	0%	—	Unchanged
21	SPGI	S&p Global INC	0%	-1.26%	Trim
22	V	Visa Inc-class A Shares	0%	-1.94%	Trim
23	META	Meta Platforms Inc-class A	0%	-2.76%	Trim
24	IDXX	Idexx Laboratories INC	0%	—	Unchanged
25	FTV	Fortive CORP	-0.1%	-50.44%	Trim
26	CMCSA	Comcast Corp-class A	-0.1%	-44.71%	Trim
27	ODFL	Old Dominion Freight Line	-0.1%	-36.78%	Trim
28	CDW	Cdw Corp/de	-0.1%	-35.56%	Trim
29	MA	Mastercard INC - A	-0.2%	-5.71%	Trim
30	ACN	Accenture plc	-0.2%	+6.09%	Add
31	ORCL	Oracle CORP	-0.3%	-21.43%	Trim
32	CRM	Salesforce INC	-0.3%	-6.86%	Trim
33	EFX	Equifax INC	-0.4%	-12.69%	Trim
34	TECH	Bio-techne CORP	-0.4%	-18.65%	Trim
35	TMO	Thermo Fisher Scientific INC	-0.5%	-10.34%	Trim
36	IEX	Idex CORP	-0.6%	-32.49%	Trim
37	DHR	Danaher CORP	-0.7%	-7.04%	Trim
38	GPN	Global Payments INC	-0.8%	-33.66%	Trim
39	CSGP	Costar Group INC	-1.4%	-28.18%	Trim
40	ROP	Roper Technologies INC	—	EXIT	Sold out
41	IR	Ingersoll-rand INC	—	NEW	New buy
42	ASML	ASML Holding N.V.	—	NEW	New buy
43	TSM	Taiwan Semiconductor-sp Adr	—	NEW	New buy
44	IT	Gartner INC	—	EXIT	Sold out
45	NVDA	Nvidia CORP	—	NEW	New buy
46	POOL	Pool CORP	—	NEW	New buy
47	RGEN	Repligen CORP	—	NEW	New buy
48	DEO	Diageo Plc-sponsored Adr	—	EXIT	Sold out
49	FERG	Ferguson Enterprises INC	—	NEW	New buy
50	APH	Amphenol Corp-cl A	—	NEW	New buy

Filing History

Period	Filed	Type	EDGAR
2026-03-31	2026-05-14	13F-HR	View on EDGAR
2025-12-31	2026-02-12	13F-HR	View on EDGAR
2025-09-30	2025-11-10	13F-HR	View on EDGAR
2025-06-30	2025-08-12	13F-HR	View on EDGAR
2025-03-31	2025-05-09	13F-HR	View on EDGAR
2024-12-31	2025-02-12	13F-HR	View on EDGAR
2024-09-30	2024-11-12	13F-HR	View on EDGAR
2024-06-30	2024-08-14	13F-HR	View on EDGAR
2024-03-31	2024-05-13	13F-HR	View on EDGAR
2023-12-31	2024-02-12	13F-HR	View on EDGAR
2023-09-30	2023-11-13	13F-HR	View on EDGAR
2023-06-30	2023-08-10	13F-HR	View on EDGAR
2023-03-31	2023-05-12	13F-HR	View on EDGAR
2022-12-31	2023-02-09	13F-HR	View on EDGAR
2022-09-30	2022-11-09	13F-HR	View on EDGAR
2022-06-30	2022-08-12	13F-HR	View on EDGAR
2022-03-31	2022-05-13	13F-HR	View on EDGAR
2021-12-31	2022-02-11	13F-HR	View on EDGAR
2021-09-30	2021-11-15	13F-HR	View on EDGAR
2021-06-30	2021-08-10	13F-HR	View on EDGAR
2021-03-31	2021-05-13	13F-HR	View on EDGAR
2020-12-31	2021-02-10	13F-HR	View on EDGAR
2020-09-30	2020-11-12	13F-HR	View on EDGAR
2020-06-30	2020-08-12	13F-HR	View on EDGAR
2020-03-31	2020-05-11	13F-HR	View on EDGAR
2019-12-31	2020-02-13	13F-HR	View on EDGAR
2019-09-30	2019-11-13	13F-HR	View on EDGAR
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2019-03-31	2019-05-14	13F-HR	View on EDGAR
2018-12-31	2019-02-11	13F-HR	View on EDGAR
2018-09-30	2018-11-13	13F-HR	View on EDGAR
2018-06-30	2018-08-13	13F-HR	View on EDGAR
2018-03-31	2018-05-14	13F-HR	View on EDGAR
2017-12-31	2018-02-14	13F-HR	View on EDGAR
2017-09-30	2017-11-13	13F-HR	View on EDGAR
2017-06-30	2017-08-14	13F-HR	View on EDGAR
2017-03-31	2017-05-15	13F-HR	View on EDGAR
2016-12-31	2017-02-14	13F-HR	View on EDGAR
2016-09-30	2016-11-14	13F-HR	View on EDGAR
2016-06-30	2016-08-10	13F-HR	View on EDGAR
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2015-12-31	2016-02-16	13F-HR	View on EDGAR
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2014-12-31	2015-02-12	13F-HR	View on EDGAR
2014-09-30	2014-11-13	13F-HR	View on EDGAR
2014-06-30	2014-08-14	13F-HR	View on EDGAR
2014-03-31	2014-05-14	13F-HR	View on EDGAR
2013-12-31	2014-02-13	13F-HR	View on EDGAR
2013-09-30	2013-11-13	13F-HR	View on EDGAR
2013-06-30	2013-08-08	13F-HR	View on EDGAR

FAQ

What is Weitz Investment Management, INC. and what type of investor is it?

Weitz Investment Management, INC. is a investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-03-31), the firm manages a tracked equity portfolio valued at approximately $1.4B, spread across 49 disclosed positions.

What are Weitz Investment Management, INC.'s largest equity positions?

Based on the latest 13F filing, Weitz Investment Management, INC.'s top holdings by market value are: 1. Berkshire Hathaway Inc-cl B (BRK-B) — $133.6M (9.3%) 2. Alphabet Inc-cl C (GOOG) — $93.7M (6.5%) 3. Danaher CORP (DHR) — $90.6M (6.3%) 4. Visa Inc-class A Shares (V) — $80.2M (5.6%) 5. Mastercard INC - A (MA) — $73.5M (5.1%)

What changes did Weitz Investment Management, INC. make in its most recent portfolio filing?

In the latest reported quarter, Weitz Investment Management, INC. made 44 notable position adjustments: 8 new positions were initiated, 6 existing holdings were added to, 27 positions were partially reduced, and 3 were completely exited. The largest of these moves: Sold out: Roper Technologies INC (ROP); New buy: Ingersoll-rand INC (IR); New buy: ASML Holding N.V. (ASML); New buy: Taiwan Semiconductor-sp Adr (TSM); Sold out: Gartner INC (IT)

What sectors does Weitz Investment Management, INC. focus on?

Weitz Investment Management, INC. is concentrated in the following sectors based on its current disclosed equity portfolio: • Financials: 26.2% • Information Technology: 17.3% • Health Care: 17.0% • Communication Services: 15.6% • Industrials: 11.0% • Materials: 6.2%

Peer Institutions

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Sector conviction74.0

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Kopernik Global Investors, LLC

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Similar Holdings Style

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Saybrook Capital /nc

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Total reported value

$371.4M

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Baxter Bros INC

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Total reported value

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Weitz Investment Management, INC. Institutional Portfolio (13F)

CIK: 0000883965

Diversified strategyMomentum followerQuality / disciplined sizing

Total reported value

$1.4B

Reporting period: 2026-03-31 · Number of holdings: 49

WEITZ INVESTMENT MANAGEMENT, INC. disclosed 49 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $1.4B and a quarterly turnover rate of 23.0%.

Browse other institutions with $1B to $10B AUM Browse other institutions starting with "W"

Personality snowflake

Concentration: 16.42
Portfolio Stability: 22.97
Momentum/Contrarian: 100
Sector conviction: 51.13
Diversification: 98
Sizing Uniformity: 89.84

Position sizes are fairly uniform across the portfolio (a coefficient of variation of 1.02), suggesting a disciplined, rules-based approach to how much capital goes into each idea.

No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.

Recent moves

Trim CSGP
-28.2%　-$27.5M
Add BRK-B
-2.8%　-$10.6M
Trim GPN
-33.7%　-$16.5M
Trim DHR
-7.0%　-$27.1M
Trim IEX
-32.5%　-$19.6M
Add MELI
+116.2%　$6.4M

Holdings Map

New buyAddUnchangedTrim

Top 10 holdings by weight

Full holdings list this quarter

#	Ticker	Issuer	Asset Subclass	Weight	Weight Change	Shares Change
1	BRK-B	Berkshire Hathaway Inc-cl B	Stock-Other	9.33%	+0.78%	-2.79%
2	GOOG	Alphabet Inc-cl C	Stock-Comm Services	6.54%	+0.07%	-6.08%
3	DHR	Danaher CORP	Stock-Healthcare	6.32%	-0.66%	-7.04%
4	V	Visa Inc-class A Shares	Stock-Financials	5.60%	-0.03%	-1.94%
5	MA	Mastercard INC - A	Stock-Financials	5.13%	-0.15%	-5.71%
6	AON	Aon plc	Stock-Financials	4.82%	+0.24%	-2.23%
7	MSFT	Microsoft CORP	Stock-Tech	4.38%	+0.19%	+16.08%
8	META	Meta Platforms Inc-class A	Stock-Comm Services	4.22%	-0.03%	-2.76%
9	TMO	Thermo Fisher Scientific INC	Stock-Healthcare	4.15%	-0.49%	-10.34%
10	VMC	Vulcan Materials Co	Stock-Materials	4.07%	+0.52%	+1.90%
11	IEX	Idex CORP	Stock-Industrials	3.50%	-0.63%	-32.49%
12	AMZN	Amazon.com INC	Stock-Consumer Disc	3.23%	+0.18%	—
13	HEI-A	Heico Corp-class A	Stock-Other	2.78%	+0.34%	+16.10%
14	TECH	Bio-techne CORP	Stock-Healthcare	2.38%	-0.42%	-18.65%
15	ACN	Accenture plc	Stock-Tech	2.36%	-0.20%	+6.09%
16	ADI	Analog Devices INC	Stock-Tech	2.36%	+0.22%	-19.92%
17	EFX	Equifax INC	Stock-Industrials	2.36%	-0.40%	-12.69%
18	TXN	Texas Instruments INC	Stock-Tech	2.17%	+0.47%	-3.03%
19	SIRI	Sirius Xm Holdings INC	Stock-Comm Services	2.08%	+0.44%	-6.58%
20	LBRDK	Liberty Broadband-c	Stock-Comm Services	2.02%	+0.14%	-11.52%
21	LH	Labcorp Holdings INC	Stock-Healthcare	1.84%	+0.36%	-0.70%
22	ODFL	Old Dominion Freight Line	Stock-Industrials	1.80%	-0.14%	-36.78%
23	MLM	Martin Marietta Materials	Stock-Materials	1.63%	+0.11%	-3.63%
24	GPN	Global Payments INC	Stock-Industrials	1.57%	-0.75%	-33.66%
25	CSGP	Costar Group INC	Stock-Real Estate	1.46%	-1.41%	-28.18%
26	IDXX	Idexx Laboratories INC	Stock-Healthcare	1.38%	-0.04%	—
27	CRM	Salesforce INC	Stock-Tech	1.06%	-0.31%	-6.86%
28	ACIW	Aci Worldwide INC	Stock-Tech	1.05%	+0.01%	—
29	MELI	Mercadolibre INC	Stock-Consumer Disc	0.97%	+0.53%	+116.22%
30	PRM	Perimeter Solutions INC	Stock-Other	0.87%	+0.04%	—
31	LKQ	Lkq CORP	Stock-Consumer Disc	0.84%	+0.05%	-7.48%
32	IR	Ingersoll-rand INC	Stock-Industrials	0.74%	+0.74%	NEW
33	EEFT	Euronet Worldwide INC	Stock-Tech	0.74%	+0.02%	—
34	ORCL	Oracle CORP	Stock-Tech	0.56%	-0.25%	-21.43%
35	ASML	ASML Holding N.V.	Stock-Tech	0.51%	+0.51%	NEW
36	TSM	Taiwan Semiconductor-sp Adr	Stock-Tech	0.47%	+0.47%	NEW
37	LBRDA	Liberty Broadband-a	Stock-Other	0.46%	—	-7.14%
38	NVDA	Nvidia CORP	Stock-Tech	0.43%	+0.43%	NEW
39	CDW	Cdw Corp/de	Stock-Tech	0.31%	-0.14%	-35.56%
40	LIN	Linde plc	Stock-Materials	0.25%	+0.07%	—
41	VLTO	Veralto CORP	Stock-Industrials	0.25%	+0.03%	+5.26%
42	POOL	Pool CORP	Stock-Industrials	0.21%	+0.21%	NEW
43	RGEN	Repligen CORP	Stock-Healthcare	0.21%	+0.21%	NEW
44	SPGI	S&p Global INC	Stock-Financials	0.21%	-0.01%	-1.26%
45	CMCSA	Comcast Corp-class A	Stock-Comm Services	0.09%	-0.06%	-44.71%
46	FTV	Fortive CORP	Stock-Tech	0.09%	-0.06%	-50.44%
47	FERG	Ferguson Enterprises INC	Stock-Industrials	0.08%	+0.08%	NEW
48	APH	Amphenol Corp-cl A	Stock-Tech	0.08%	+0.08%	NEW
49	CHTR	Charter Communications Inc-a	Stock-Comm Services	0.01%	—	—

Portfolio Performance

Performance for Q3 2026

+2.5%

Performance Last 4 Quarters

+2.6%

Based on 66% of reported portfolio value with available pricing

Stdev: +14.5%
Beta: +0.96
Alpha: -9.2%
Max Drawdown: -14.3%
Annualized Perf: +7.8%
Batting Avg vs S&P: +30.6%
Sortino: +1
Stutzer: +0.17
Treynor: +0.09
Sterling: +0.38
Calmar: +0.54
Information Ratio: -1.37
Tracking Error: +7.2%
Stdev Down: +8.5%
Winning Months %: +61.1%
Losing Months %: +38.9%
Best 12 Months: +32.5%
Worst 12 Months: -7%
Efficiency Ratio: +0.21
Sharpe: +0.59
Stdev Sectors: +7.5%
Skewness: +0.21
Kurtosis: -0.3
Upside Potential: +2.89

Reported value over time

Sector allocation

Sector allocation over time

Quarterly history

Period	Holdings	Total value	Stability	Top holdings
2026-03-31	49	$1.4B	23	1BRK-B 2GOOG 3DHR Top holdings2026-03-31 1.BRK-B 2.GOOG 3.DHR 4.V 5.MA 6.AON 7.MSFT 8.META 9.TMO 10.VMC
2025-12-31	44	$1.7B	16	1BRK-B 2DHR 3GOOG Top holdings2025-12-31 1.BRK-B 2.DHR 3.GOOG 4.V 5.MA 6.TMO 7.AON 8.META 9.MSFT 10.IEX
2025-09-30	48	$1.8B	21	1BRK-B 2GOOG 3DHR Top holdings2025-09-30 1.BRK-B 2.GOOG 3.DHR 4.V 5.MA 6.META 7.MSFT 8.AON 9.TMO 10.IEX
2025-06-30	45	$1.9B	0	1BRK-B 2V 3DHR Top holdings2025-06-30 1.BRK-B 2.V 3.DHR 4.MA 5.META 6.GOOG 7.AON 8.IEX 9.MSFT 10.CSGP
2025-03-31	45	$1.9B	100	1BRK-B 2V 3DHR Top holdings2025-03-31 1.BRK-B 2.V 3.DHR 4.MA 5.AON 6.IEX 7.CSGP 8.GOOG 9.META 10.TMO
2024-12-31	47	$1.9B	0	1BRK-B 2V 3GOOG Top holdings2024-12-31 1.BRK-B 2.V 3.GOOG 4.MA 5.AON 6.META 7.DHR 8.IEX 9.KMX 10.GPN
2024-09-30	50	$2.0B	0	1BRK-B 2MA 3V Top holdings2024-09-30 1.BRK-B 2.MA 3.V 4.DHR 5.META 6.GOOG 7.AON 8.TMO 9.CSGP 10.KMX
2024-06-30	53	$1.9B	0	1BRK-B 2GOOG 3META Top holdings2024-06-30 1.BRK-B 2.GOOG 3.META 4.V 5.MA 6.DHR 7.AON 8.TMO 9.CSGP 10.KMX
2024-03-31	54	$2.0B	0	1BRK-B 2GOOG 3V Top holdings2024-03-31 1.BRK-B 2.GOOG 3.V 4.MA 5.META 6.DHR 7.CSGP 8.TMO 9.VMC 10.KMX
2023-12-31	55	$1.9B	0	1BRK-B 2GOOG 3V Top holdings2023-12-31 1.BRK-B 2.GOOG 3.V 4.MA 5.DHR 6.META 7.CSGP 8.TMO 9.VMC 10.50540R
2023-09-30	53	$1.8B	0	1GOOG 2BRK-B 3V Top holdings2023-09-30 1.GOOG 2.BRK-B 3.V 4.MA 5.DHR 6.CSGP 7.META 8.TMO 9.VMC 10.LBRDK
2023-06-30	51	$1.9B	0	1BRK-B 2GOOG 3CSGP Top holdings2023-06-30 1.BRK-B 2.GOOG 3.CSGP 4.V 5.MA 6.DHR 7.META 8.VMC 9.50540R 10.LBRDK
2023-03-31	54	$1.7B	0	1GOOG 2BRK-B 3META Top holdings2023-03-31 1.GOOG 2.BRK-B 3.META 4.V 5.MA 6.CSGP 7.DHR 8.50540R 9.LBRDK 10.VMC
2022-12-31	58	$1.8B	0	1BRK-B 2GOOG 3CSGP Top holdings2022-12-31 1.BRK-B 2.GOOG 3.CSGP 4.V 5.MA 6.DHR 7.LSXMKUSD 8.50540R 9.SCHW 10.META
2022-09-30	58	$1.7B	0	1GOOG 2BRK-B 3CSGP Top holdings2022-09-30 1.GOOG 2.BRK-B 3.CSGP 4.V 5.MA 6.DHR 7.LSXMKUSD 8.META 9.LBRDK 10.SCHW
2022-06-30	58	$1.9B	0	1GOOG 2BRK-B 3CSGP Top holdings2022-06-30 1.GOOG 2.BRK-B 3.CSGP 4.V 5.LBRDK 6.MA 7.KMX 8.META 9.50540R 10.DHR
2022-03-31	60	$2.3B	0	1GOOG 2BRK-B 3V Top holdings2022-03-31 1.GOOG 2.BRK-B 3.V 4.CSGP 5.MA 6.LBRDK 7.META 8.LSXMKUSD 9.MKL 10.50540R
2021-12-31	59	$2.5B	0	1GOOG 2BRK-B 3LBRDK Top holdings2021-12-31 1.GOOG 2.BRK-B 3.LBRDK 4.SCHW 5.META 6.V 7.LSXMKUSD 8.MA 9.50540R 10.CSGP
2021-09-30	58	$2.4B	0	1GOOG 2BRK-B 3AON Top holdings2021-09-30 1.GOOG 2.BRK-B 3.AON 4.LBRDK 5.50540R 6.META 7.SCHW 8.V 9.LSXMKUSD 10.MA
2021-06-30	60	$2.4B	98	1GOOG 2BRK-B 3LBRDK Top holdings2021-06-30 1.GOOG 2.BRK-B 3.LBRDK 4.50540R 5.AON 6.META 7.V 8.SCHW 9.MA 10.LSXMKUSD
2021-03-31	60	$2.3B	20	1BRK-B 2GOOG350540R Top holdings2021-03-31 1.BRK-B 2.GOOG 3.50540R 4.AON 5.LBRDK 6.SCHW 7.V 8.MA 9.META 10.LSXMKUSD
2020-12-31	67	$2.3B	13	1BRK-A 2BRK-B 3GOOG Top holdings2020-12-31 1.BRK-A 2.BRK-B 3.GOOG 4.LBRDK 5.50540R 6.V 7.SCHW 8.MA 9.LSXMKUSD 10.AON
2020-09-30	66	$2.1B	14	1BRK-A 2BRK-B 3GOOG Top holdings2020-09-30 1.BRK-A 2.BRK-B 3.GOOG 4.50540R 5.V 6.LBRDK 7.MA 8.CSGP 9.SCHW 10.META
2020-06-30	65	$2.0B	22	1BRK-A 2BRK-B 3GOOG Top holdings2020-06-30 1.BRK-A 2.BRK-B 3.GOOG 4.LBRDK 5.V 6.MA 7.META 8.50540R 9.KMX 10.LSXMKUSD
2020-03-31	69	$1.9B	40	1BRK-A 2BRK-B 3GOOG Top holdings2020-03-31 1.BRK-A 2.BRK-B 3.GOOG 4.LBRDK 5.V 6.MA 7.50540R 8.META 9.LBTYA 10.LSXMKUSD
2019-12-31	68	$2.5B	13	1BRK-A 2BRK-B 3LBRDK Top holdings2019-12-31 1.BRK-A 2.BRK-B 3.LBRDK 4.GOOG 5.50540R 6.V 7.MA 8.LSXMKUSD 9.LBTYA 10.META
2019-09-30	72	$2.5B	14	1BRK-A 2BRK-B 3LBRDK Top holdings2019-09-30 1.BRK-A 2.BRK-B 3.LBRDK 4.GOOG 5.50540R 6.MA 7.V 8.35Y 9.LBTYA 10.META
2019-06-30	72	$2.5B	9	1BRK-A 2BRK-B 3LBRDK Top holdings2019-06-30 1.BRK-A 2.BRK-B 3.LBRDK 4.GOOG 5.50540R 6.MA 7.V 8.LBTYA 9.META 10.KMX
2019-03-31	75	$2.4B	23	1BRK-A 2BRK-B 3LBRDK Top holdings2019-03-31 1.BRK-A 2.BRK-B 3.LBRDK 4.GOOG 5.50540R 6.MA 7.V 8.LBTYA 9.KMX 10.35Y
2018-12-31	82	$2.2B	28	1BRK-B 2BRK-A 3LBRDK Top holdings2018-12-31 1.BRK-B 2.BRK-A 3.LBRDK 4.GOOG 5.50540R 6.MA 7.LBTYA 8.V 9.META 10.ORCL
2018-09-30	79	$2.5B	14	1BRK-B 2BRK-A 3LBRDK Top holdings2018-09-30 1.BRK-B 2.BRK-A 3.LBRDK 4.LBTYA 5.GOOG 6.50540R 7.MA 8.V 9.G0177J 10.ORCL
2018-06-30	79	$2.4B	20	1BRK-B 2LBRDK 3BRK-A Top holdings2018-06-30 1.BRK-B 2.LBRDK 3.BRK-A 4.50540R 5.LBTYA 6.G0177J 7.GOOG 8.V 9.MA 10.LSXMKUSD
2018-03-31	75	$2.4B	23	1BRK-B 2LBRDK 3BRK-A Top holdings2018-03-31 1.BRK-B 2.LBRDK 3.BRK-A 4.LBTYA 5.50540R 6.G0177J 7.GOOG 8.V 9.MA 10.RWT
2017-12-31	77	$2.4B	12	1BRK-B 2LBRDK 3LBTYA Top holdings2017-12-31 1.BRK-B 2.LBRDK 3.LBTYA 4.50540R 5.BRK-A 6.G0177J 7.MA 8.GOOG 9.V 10.LSXMKUSD
2017-09-30	79	$2.4B	11	1BRK-B 2LBRDK 3LBTYA Top holdings2017-09-30 1.BRK-B 2.LBRDK 3.LBTYA 4.50540R 5.G0177J 6.BRK-A 7.MA 8.GOOG 9.V 10.USA
2017-06-30	74	$2.3B	12	1BRK-B 2LBRDK 3LBTYA Top holdings2017-06-30 1.BRK-B 2.LBRDK 3.LBTYA 4.50540R 5.G0177J 6.BRK-A 7.MA 8.USA 9.GOOG 10.V
2017-03-31	83	$2.4B	12	1LBRDK 2BRK-B 3LBTYA Top holdings2017-03-31 1.LBRDK 2.BRK-B 3.LBTYA 4.G0177J 5.50540R 6.BRK-A 7.MA 8.USA 9.XXI 10.GOOG
2016-12-31	86	$2.5B	24	1BRK-B 2LBRDK 3LBTYA Top holdings2016-12-31 1.BRK-B 2.LBRDK 3.LBTYA 4.G0177J 5.BRK-A 6.50540R 7.XXI 8.USA 9.LSXMKUSD 10.RWT
2016-09-30	71	$2.7B	16	1BRK-B 2LBTYA 3LBRDK Top holdings2016-09-30 1.BRK-B 2.LBTYA 3.LBRDK 4.G0177J 5.LSXMKUSD 6.50540R 7.XXI 8.BRK-A 9.USA 10.RWT
2016-06-30	68	$2.7B	29	1BRK-B 2LBTYA 3LBRDK Top holdings2016-06-30 1.BRK-B 2.LBTYA 3.LBRDK 4.G0177J 5.LSXMKUSD 6.USA 7.BRK-A 8.50540R 9.XXI 10.RWT
2016-03-31	65	$2.9B	25	1BRK-B 2LBTYA 3USA Top holdings2016-03-31 1.BRK-B 2.LBTYA 3.USA 4.LBRDK 5.USA 6.BRK-A 7.XXI 8.RWT 9.50540R 10.G0177J
2015-12-31	67	$2.9B	23	1LBTYA 2BRK-B 3USA Top holdings2015-12-31 1.LBTYA 2.BRK-B 3.USA 4.USA 5.BRK-A 6.740189 7.AXP 8.LBRDK 9.50540R 10.TDG
2015-09-30	68	$3.2B	27	1LBTYA 2BRK-B 3USA Top holdings2015-09-30 1.LBTYA 2.BRK-B 3.USA 4.USA 5.VALE 6.TDG 7.BRK-A 8.740189 9.RRC 10.AXP
2015-06-30	67	$3.6B	16	1LBTYA 2BRK-B 3VALE Top holdings2015-06-30 1.LBTYA 2.BRK-B 3.VALE 4.USA 5.USA 6.TDG 7.BRK-A 8.RRC 9.DISCKUSD 10.AXP
2015-03-31	65	$3.7B	15	1LBTYA 2BRK-B 3VALE Top holdings2015-03-31 1.LBTYA 2.BRK-B 3.VALE 4.USA 5.USA 6.AXP 7.TDG 8.BRK-A 9.RRC 10.MLM
2014-12-31	71	$3.6B	36	1LBTYA 2BRK-B 3VALE Top holdings2014-12-31 1.LBTYA 2.BRK-B 3.VALE 4.USA 5.AXP 6.USA 7.RWT 8.TDG 9.RRC 10.50540R
2014-09-30	65	$3.4B	23	1VALE 2LBTYA 3BRK-B Top holdings2014-09-30 1.VALE 2.LBTYA 3.BRK-B 4.USA 5.USA 6.25490A 7.AXP 8.WFC 9.TXN 10.TDG
2014-06-30	62	$3.3B	18	1USA 2VALE 3LBTYA Top holdings2014-06-30 1.USA 2.VALE 3.LBTYA 4.BRK-B 5.USA 6.25490A 7.WFC 8.AXP 9.RWT 10.TXN
2014-03-31	63	$3.1B	20	1VALE 2LBTYA325490A Top holdings2014-03-31 1.VALE 2.LBTYA 3.25490A 4.BRK-B 5.USA 6.USA 7.WFC 8.RWT 9.TDG 10.TXN
2013-12-31	62	$3.0B	22	1VALE 2LBTYA 3USA Top holdings2013-12-31 1.VALE 2.LBTYA 3.USA 4.25490A 5.BRK-B 6.RWT 7.WFC 8.TXN 9.ICLR 10.TDG
2013-09-30	60	$2.7B	16	1VALE 2AON 3BRK-B Top holdings2013-09-30 1.VALE 2.AON 3.BRK-B 4.25490A 5.RWT 6.LBTYA 7.TXN 8.WFC 9.USA 10.9990302D
2013-06-30	61	$2.5B	0	1VALE225490A3AON Top holdings2013-06-30 1.VALE 2.25490A 3.AON 4.BRK-B 5.WFC 6.LBTYA 7.TXN 8.RWT 9.USA 10.ICLR

Holding changes this quarter

Position changes disclosed by Weitz Investment Management, INC. for the quarter ending 2026-03-31, including ticker, issuer, weight change, shares change, and action
#	Ticker	Issuer	Weight Change	Shares Change	Action
1	BRK-B	Berkshire Hathaway Inc-cl B	+0.8%	-2.79%	Trim
2	MELI	Mercadolibre INC	+0.5%	+116.22%	Add
3	VMC	Vulcan Materials Co	+0.5%	+1.90%	Add
4	TXN	Texas Instruments INC	+0.5%	-3.03%	Trim
5	SIRI	Sirius Xm Holdings INC	+0.4%	-6.58%	Trim
6	LH	Labcorp Holdings INC	+0.4%	-0.70%	Trim
7	HEI-A	Heico Corp-class A	+0.3%	+16.10%	Add
8	AON	Aon plc	+0.2%	-2.23%	Trim
9	ADI	Analog Devices INC	+0.2%	-19.92%	Trim
10	MSFT	Microsoft CORP	+0.2%	+16.08%	Add
11	AMZN	Amazon.com INC	+0.2%	—	Unchanged
12	LBRDK	Liberty Broadband-c	+0.1%	-11.52%	Trim
13	MLM	Martin Marietta Materials	+0.1%	-3.63%	Trim
14	GOOG	Alphabet Inc-cl C	+0.1%	-6.08%	Trim
15	LIN	Linde plc	+0.1%	—	Unchanged
16	LKQ	Lkq CORP	+0.1%	-7.48%	Trim
17	PRM	Perimeter Solutions INC	0%	—	Unchanged
18	VLTO	Veralto CORP	0%	+5.26%	Add
19	EEFT	Euronet Worldwide INC	0%	—	Unchanged
20	ACIW	Aci Worldwide INC	0%	—	Unchanged
21	SPGI	S&p Global INC	0%	-1.26%	Trim
22	V	Visa Inc-class A Shares	0%	-1.94%	Trim
23	META	Meta Platforms Inc-class A	0%	-2.76%	Trim
24	IDXX	Idexx Laboratories INC	0%	—	Unchanged
25	FTV	Fortive CORP	-0.1%	-50.44%	Trim
26	CMCSA	Comcast Corp-class A	-0.1%	-44.71%	Trim
27	ODFL	Old Dominion Freight Line	-0.1%	-36.78%	Trim
28	CDW	Cdw Corp/de	-0.1%	-35.56%	Trim
29	MA	Mastercard INC - A	-0.2%	-5.71%	Trim
30	ACN	Accenture plc	-0.2%	+6.09%	Add
31	ORCL	Oracle CORP	-0.3%	-21.43%	Trim
32	CRM	Salesforce INC	-0.3%	-6.86%	Trim
33	EFX	Equifax INC	-0.4%	-12.69%	Trim
34	TECH	Bio-techne CORP	-0.4%	-18.65%	Trim
35	TMO	Thermo Fisher Scientific INC	-0.5%	-10.34%	Trim
36	IEX	Idex CORP	-0.6%	-32.49%	Trim
37	DHR	Danaher CORP	-0.7%	-7.04%	Trim
38	GPN	Global Payments INC	-0.8%	-33.66%	Trim
39	CSGP	Costar Group INC	-1.4%	-28.18%	Trim
40	ROP	Roper Technologies INC	—	EXIT	Sold out
41	IR	Ingersoll-rand INC	—	NEW	New buy
42	ASML	ASML Holding N.V.	—	NEW	New buy
43	TSM	Taiwan Semiconductor-sp Adr	—	NEW	New buy
44	IT	Gartner INC	—	EXIT	Sold out
45	NVDA	Nvidia CORP	—	NEW	New buy
46	POOL	Pool CORP	—	NEW	New buy
47	RGEN	Repligen CORP	—	NEW	New buy
48	DEO	Diageo Plc-sponsored Adr	—	EXIT	Sold out
49	FERG	Ferguson Enterprises INC	—	NEW	New buy
50	APH	Amphenol Corp-cl A	—	NEW	New buy

Filing History

Period	Filed	Type	EDGAR
2026-03-31	2026-05-14	13F-HR	View on EDGAR
2025-12-31	2026-02-12	13F-HR	View on EDGAR
2025-09-30	2025-11-10	13F-HR	View on EDGAR
2025-06-30	2025-08-12	13F-HR	View on EDGAR
2025-03-31	2025-05-09	13F-HR	View on EDGAR
2024-12-31	2025-02-12	13F-HR	View on EDGAR
2024-09-30	2024-11-12	13F-HR	View on EDGAR
2024-06-30	2024-08-14	13F-HR	View on EDGAR
2024-03-31	2024-05-13	13F-HR	View on EDGAR
2023-12-31	2024-02-12	13F-HR	View on EDGAR
2023-09-30	2023-11-13	13F-HR	View on EDGAR
2023-06-30	2023-08-10	13F-HR	View on EDGAR
2023-03-31	2023-05-12	13F-HR	View on EDGAR
2022-12-31	2023-02-09	13F-HR	View on EDGAR
2022-09-30	2022-11-09	13F-HR	View on EDGAR
2022-06-30	2022-08-12	13F-HR	View on EDGAR
2022-03-31	2022-05-13	13F-HR	View on EDGAR
2021-12-31	2022-02-11	13F-HR	View on EDGAR
2021-09-30	2021-11-15	13F-HR	View on EDGAR
2021-06-30	2021-08-10	13F-HR	View on EDGAR
2021-03-31	2021-05-13	13F-HR	View on EDGAR
2020-12-31	2021-02-10	13F-HR	View on EDGAR
2020-09-30	2020-11-12	13F-HR	View on EDGAR
2020-06-30	2020-08-12	13F-HR	View on EDGAR
2020-03-31	2020-05-11	13F-HR	View on EDGAR
2019-12-31	2020-02-13	13F-HR	View on EDGAR
2019-09-30	2019-11-13	13F-HR	View on EDGAR
2019-06-30	2019-08-08	13F-HR	View on EDGAR
2019-03-31	2019-05-14	13F-HR	View on EDGAR
2018-12-31	2019-02-11	13F-HR	View on EDGAR
2018-09-30	2018-11-13	13F-HR	View on EDGAR
2018-06-30	2018-08-13	13F-HR	View on EDGAR
2018-03-31	2018-05-14	13F-HR	View on EDGAR
2017-12-31	2018-02-14	13F-HR	View on EDGAR
2017-09-30	2017-11-13	13F-HR	View on EDGAR
2017-06-30	2017-08-14	13F-HR	View on EDGAR
2017-03-31	2017-05-15	13F-HR	View on EDGAR
2016-12-31	2017-02-14	13F-HR	View on EDGAR
2016-09-30	2016-11-14	13F-HR	View on EDGAR
2016-06-30	2016-08-10	13F-HR	View on EDGAR
2016-03-31	2016-05-13	13F-HR	View on EDGAR
2015-12-31	2016-02-16	13F-HR	View on EDGAR
2015-09-30	2015-11-13	13F-HR	View on EDGAR
2015-06-30	2015-08-14	13F-HR	View on EDGAR
2015-03-31	2015-05-12	13F-HR	View on EDGAR
2014-12-31	2015-02-12	13F-HR	View on EDGAR
2014-09-30	2014-11-13	13F-HR	View on EDGAR
2014-06-30	2014-08-14	13F-HR	View on EDGAR
2014-03-31	2014-05-14	13F-HR	View on EDGAR
2013-12-31	2014-02-13	13F-HR	View on EDGAR
2013-09-30	2013-11-13	13F-HR	View on EDGAR
2013-06-30	2013-08-08	13F-HR	View on EDGAR