Bronte Capital Management Pty Ltd. 13F Filing History & Holdings

CIK: 0001471085

Diversified strategyMomentum followerQuality / disciplined sizing

Total reported value

$1.0B

Reporting period: 2026-03-31 · Number of holdings: 54

Bronte Capital Management Pty Ltd. disclosed 54 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $1.0B and a quarterly turnover rate of 21.5%.

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

Personality snowflake

Concentration: 31.01
Portfolio Stability: 21.51
Momentum/Contrarian: 100
Sector conviction: 73.4
Diversification: 100
Sizing Uniformity: 82.64

Bronte Capital Management Pty Ltd.'s disclosed holdings carry a Herfindahl concentration index of 0.078 — mathematically equivalent to about 13 equally-sized positions, well below its 54 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.

Position sizes vary widely across the portfolio (a coefficient of variation of 1.74), with a handful of outsized bets alongside many smaller positions.

Recent activity leans toward adding more aggressively to already-large existing positions than to newly initiated ones (a 4.5 percentage-point tilt) — a pattern consistent with a momentum-following approach.

Sector classification currently covers about 55% of this portfolio's disclosed value; the remainder includes holdings (e.g. unmapped tickers, options, or other security types) not yet covered by our sector mapping.

Recent moves

Trim GOOGL
-8.3%　-$20.5M
Trim 83601L105
+1.8%　-$10.1M
Trim IBKR
-13.8%　-$9.6M
Trim COF
+6.7%　-$8.4M
Trim PM
-14.4%　-$7.5M
Trim BRK-B
-4.5%　-$7.3M

Holdings Map

New buyAddUnchangedTrim

Top 10 holdings by weight

Full holdings list this quarter

Showing top 51 holdings (of 54 total)

#	Ticker	Issuer	Asset Subclass	Weight	Weight Change	Shares Change
1	REGN	Regeneron Pharmaceuticals	Stock-Healthcare	18.46%	+0.29%	+2.25%
2	GOOGL	Alphabet Inc-cl A	Stock-Comm Services	10.86%	-2.13%	-8.29%
3	IBKR	Interactive Brokers Gro-cl A	Stock-Financials	8.51%	-1.02%	-13.76%
4	BRK-B	Berkshire Hathaway Inc-cl B	Stock-Other	7.36%	-0.78%	-4.47%
5	✓	Visa Inc-class A Shares	Stock-Other	7.16%	-1.07%	+1.79%
6	AMZN	Amazon.com INC	Stock-Consumer Disc	5.89%	-0.50%	+2.92%
7	PM	Philip Morris International	Stock-Consumer Staples	5.58%	-0.80%	-14.42%
8	CTVA	Corteva INC	Stock-Materials	4.17%	+0.37%	-11.64%
9	COF	Capital One Financial CORP	Stock-Financials	3.38%	-0.86%	+6.74%
10	FCNCA	First Citizens Bcshs -cl A	Stock-Financials	3.08%	-0.57%	-3.40%
11	NKTR	Nektar Therapeutics	Stock-Other	2.86%	+2.86%	NEW
12	✓	Vaneck ETF Trust	ETF-Other	1.89%	+0.03%	-4.40%
13	DIS	Walt Disney Co/the	Stock-Comm Services	1.77%	+1.77%	NEW
14	TBBB	BBB Foods Inc.	Stock-Other	1.71%	+0.40%	+23.69%
15	HLF	Herbalife Ltd.	Stock-Other	1.37%	-0.07%	-16.09%
16	GHC	Graham Holdings Co-class B	Stock-Industrials	1.34%	-0.12%	-4.27%
17	IWO	Ishares Russell 2000 Growth	ETF-Small Cap	1.30%	+1.30%	NEW
18	✓	Brown Forman CORP	Stock-Other	1.29%	+1.29%	NEW
19	ALNY	Alnylam Pharmaceuticals INC	Stock-Healthcare	1.22%	-0.32%	-4.17%
20	✓	Sotera Health Co	Stock-Other	1.20%	-0.34%	-3.57%
21	IBB	Ishares Biotechnology ETF	ETF-Tech	1.16%	-0.06%	-4.26%
22	SQM	Quimica Y Minera Chil-sp Adr	Stock-Other	0.98%	-0.14%	-25.11%
23	AUR	Aurora Innovation INC	Stock-Consumer Disc	0.95%	+0.95%	NEW
24	NEM	Newmont CORP	Stock-Materials	0.81%	+0.03%	-3.14%
25	PINS	Pinterest Inc- Class A	Stock-Comm Services	0.78%	-0.54%	-15.86%
26	GLBE	Global-E Online Ltd.	Stock-Other	0.65%	+0.65%	NEW
27	B	Barrick Mining CORP	Stock-Materials	0.64%	-0.08%	-3.71%
28	RAMP	Liveramp Holdings INC	Stock-Other	0.59%	-0.09%	-3.78%
29	PCTY	Paylocity Holding CORP	Stock-Tech	0.39%	+0.39%	NEW
30	TPB	Turning Point Brands INC	Stock-Other	0.37%	+0.11%	+75.85%
31	MDLZ	Mondelez International Inc-a	Stock-Consumer Staples	0.32%	-0.03%	-13.28%
32	✓	Vaneck ETF Trust	ETF-Other	0.32%	—	-4.31%
33	SBH	Sally Beauty Holdings INC	Stock-Other	0.30%	-0.75%	-70.06%
34	BBWI	Bath & Body Works INC	Stock-Consumer Disc	0.29%	-0.22%	-38.92%
35	BF-A	Brown-forman Corp-class A	Stock-Other	0.27%	+0.27%	NEW
36	JRVR	James River Group Holdings I	Stock-Other	0.21%	+0.13%	+174.30%
37	RSKD	Riskified Ltd.	Stock-Other	0.19%	-0.06%	-4.90%
38	NICE	Nice LTD - Spon Adr	Stock-Tech	0.19%	-0.04%	-15.90%
39	OLED	Universal Display CORP	Stock-Tech	0.10%	-0.04%	-4.57%
40	VRSK	Verisk Analytics INC	Stock-Industrials	0.05%	+0.05%	NEW
41	ENVX	Enovix CORP	Stock-Other	0.01%	—	—
42	ALEC	Alector INC	Stock-Other	—	—	—
43	CHRS	Coherus Oncology INC	Stock-Other	—	—	—
44	CRBU	Caribou Biosciences INC	Stock-Other	—	—	—
45	FATE	Fate Therapeutics INC	Stock-Other	—	—	—
46	CCCC	C4 Therapeutics INC	Stock-Other	—	—	—
47	PLRX	Pliant Therapeutics INC	Stock-Other	—	—	—
48	IVVD	Invivyd INC	Stock-Other	—	—	—
49	MIST	Milestone Pharmaceuticals In	Stock-Other	—	—	—
50	RANI	Rani Therapeutics Holdings-a	Stock-Other	—	—	—

1–50 of 51

Portfolio Performance

Performance for Q3 2026

-1.1%

Performance Last 4 Quarters

+21.4%

Based on 69% of reported portfolio value with available pricing

Stdev: +14.8%
Beta: +0.79
Alpha: -2.7%
Max Drawdown: -16.3%
Annualized Perf: +9.9%
Batting Avg vs S&P: +45.5%
Sortino: +1.22
Stutzer: +0.21
Treynor: +0.13
Sterling: +0.46
Calmar: +0.61
Information Ratio: -0.58
Tracking Error: +10.6%
Stdev Down: +8.7%
Winning Months %: +60.6%
Losing Months %: +39.4%
Best 12 Months: +24.7%
Worst 12 Months: -9.3%
Efficiency Ratio: +0.25
Sharpe: +0.72
Stdev Sectors: +9.5%
Skewness: -0.04
Kurtosis: -0.63
Upside Potential: +3.11

Reported value over time

Sector allocation

Sector allocation over time

Quarterly history

Period	Holdings	Total value	Stability	Top holdings
2026-03-31	54	$1.0B	22	1REGN 2GOOGL 3IBKR Top holdings2026-03-31 1.REGN 2.GOOGL 3.IBKR 4.BRK-B 5.83601L 6.AMZN 7.PM 8.CTVA 9.COF 10.FCNCA
2025-12-31	44	$1.0B	32	1REGN 2GOOGL 3IBKR Top holdings2025-12-31 1.REGN 2.GOOGL 3.IBKR 4.83601L 5.BRK-B 6.AMZN 7.PM 8.COF 9.CTVA 10.FCNCA
2025-09-30	30	$1.1B	45	1IBKR 2GOOGL 3REGN Top holdings2025-09-30 1.IBKR 2.GOOGL 3.REGN 4.BRK-B 5.83601L 6.PM 7.AMZN 8.COF 9.IBB 10.CTVA
2025-06-30	27	$1.3B	0	1IBKR 2BRK-B 3PM Top holdings2025-06-30 1.IBKR 2.BRK-B 3.PM 4.REGN 5.83601L 6.GOOGL 7.AMZN 8.COF 9.IJR 10.CTVA
2025-03-31	26	$1.2B	100	1IJR 2BRK-B 3REGN Top holdings2025-03-31 1.IJR 2.BRK-B 3.REGN 4.IBKR 5.PM 6.83601L 7.GOOGL 8.AMZN 9.DFSEUR 10.FCNCA
2024-12-31	24	$1.3B	0	1IJR 2REGN 3IBKR Top holdings2024-12-31 1.IJR 2.REGN 3.IBKR 4.GOOGL 5.BRK-B 6.AMZN 7.83601L 8.PM 9.DFSEUR 10.FCNCA
2024-09-30	25	$1.2B	0	1BRK-B 2GOOGL 3REGN Top holdings2024-09-30 1.BRK-B 2.GOOGL 3.REGN 4.IBKR 5.IJR 6.83601L 7.AMZN 8.PM 9.MTCH 10.DFSEUR
2024-06-30	28	$1.3B	0	1GOOGL 2REGN 3BRK-B Top holdings2024-06-30 1.GOOGL 2.REGN 3.BRK-B 4.IBKR 5.IJR 6.AMZN 7.83601L 8.PINS 9.PM 10.HB6
2024-03-31	30	$1.2B	0	1GOOGL 2BRK-B 3REGN Top holdings2024-03-31 1.GOOGL 2.BRK-B 3.REGN 4.IBKR 5.83601L 6.AMZN 7.PINS 8.HB6 9.PM 10.FCNCA
2023-12-31	30	$1.1B	0	1GOOGL 2BRK-B 3REGN Top holdings2023-12-31 1.GOOGL 2.BRK-B 3.REGN 4.83601L 5.IBKR 6.AMZN 7.PINS 8.IWM 9.HLF 10.HB6
2023-09-30	28	$992.8M	0	1BRK-B 2GOOGL 3REGN Top holdings2023-09-30 1.BRK-B 2.GOOGL 3.REGN 4.IBKR 5.83601L 6.M8216R 7.HLF 8.PINS 9.PM 10.FCNCA
2023-06-30	32	$1.0B	0	1BRK-B 2GOOGL 3REGN Top holdings2023-06-30 1.BRK-B 2.GOOGL 3.REGN 4.IBKR 5.V 6.IWM 7.IBB 8.HLF 9.ATVIEUR 10.VBK
2023-03-31	30	$861.9M	0	1BRK-B 2REGN 3GOOGL Top holdings2023-03-31 1.BRK-B 2.REGN 3.GOOGL 4.IBKR 5.V 6.HLF 7.ATVIEUR 8.IBB 9.PINS 10.CTVA
2022-12-31	27	$792.6M	0	1BRK-B 2REGN 3GOOGL Top holdings2022-12-31 1.BRK-B 2.REGN 3.GOOGL 4.IBKR 5.V 6.HLF 7.CTVA 8.HB6 9.PINS 10.IBB
2022-09-30	28	$802.9M	0	1BRK-B 2GOOGL 3REGN Top holdings2022-09-30 1.BRK-B 2.GOOGL 3.REGN 4.HLF 5.IBKR 6.V 7.CTVA 8.ATVIEUR 9.PINS 10.IBB
2022-06-30	32	$872.5M	0	1GOOGL 2BRK-B 3REGN Top holdings2022-06-30 1.GOOGL 2.BRK-B 3.REGN 4.HLF 5.V 6.IBKR 7.CTVA 8.IBB 9.ATVIEUR 10.IWO
2022-03-31	31	$1.2B	0	1IWM 2GOOGL 3IWO Top holdings2022-03-31 1.IWM 2.GOOGL 3.IWO 4.REGN 5.HLF 6.IBKR 7.CTVA 8.PINS 9.ATVIEUR 10.STT
2021-12-31	29	$1.5B	0	1IWM 2IWO 3GOOGL Top holdings2021-12-31 1.IWM 2.IWO 3.GOOGL 4.BRK-B 5.HLF 6.XBI 7.REGN 8.IBKR 9.CTVA 10.V
2021-09-30	27	$1.4B	0	1IWM 2SPY 3IWO Top holdings2021-09-30 1.IWM 2.SPY 3.IWO 4.GOOGL 5.BRK-B 6.HLF 7.REGN 8.IBKR 9.V 10.CTVA
2021-06-30	21	$1.4B	77	1IWM 2SPY 3IWO Top holdings2021-06-30 1.IWM 2.SPY 3.IWO 4.GOOGL 5.HLF 6.BRK-B 7.REGN 8.IBKR 9.V 10.CTVA
2021-03-31	17	$881.6M	56	1IWM 2BRK-B 3GOOGL Top holdings2021-03-31 1.IWM 2.BRK-B 3.GOOGL 4.HLF 5.IBKR 6.IWO 7.V 8.SPY 9.CTVA 10.REGN
2020-12-31	15	$632.9M	32	1BRK-B 2HLF 3IBKR Top holdings2020-12-31 1.BRK-B 2.HLF 3.IBKR 4.V 5.IWM 6.SPY 7.CTVA 8.GOOG 9.GOOGL 10.BNY
2020-09-30	13	$567.9M	36	1BRK-B 2HLF 3GOOGL Top holdings2020-09-30 1.BRK-B 2.HLF 3.GOOGL 4.V 5.IBKR 6.SPY 7.CTVA 8.NEM 9.GOOG 10.BNY
2020-06-30	11	$570.1M	34	1SPY 2HLF 3V Top holdings2020-06-30 1.SPY 2.HLF 3.V 4.BRK-B 5.GOOGL 6.IBKR 7.GOOG 8.CTVA 9.NEM 10.GDX
2020-03-31	13	$610.8M	35	1SPY 2BRK-B 3HLF Top holdings2020-03-31 1.SPY 2.BRK-B 3.HLF 4.V 5.IBKR 6.GOOGL 7.CTVA 8.GOOG 9.META 10.NEM
2019-12-31	9	$515.5M	50	1SPY 2BRK-B 3HLF Top holdings2019-12-31 1.SPY 2.BRK-B 3.HLF 4.V 5.GOOGL 6.IBKR 7.TSLA 8.CTVA 9.GOOG
2019-09-30	12	$361.7M	32	1BRK-B 2HLF 3V Top holdings2019-09-30 1.BRK-B 2.HLF 3.V 4.GOOGL 5.IBKR 6.CTVA 7.AEP 8.GOOG 9.TSLA 10.SPY
2019-06-30	11	$280.6M	18	1BRK-B 2V 3HLF Top holdings2019-06-30 1.BRK-B 2.V 3.HLF 4.GOOGL 5.IBKR 6.AEP 7.WRLD 8.GOOG 9.TSLA 10.SPY
2019-03-31	11	$266.5M	21	1BRK-B 2HLF 3V Top holdings2019-03-31 1.BRK-B 2.HLF 3.V 4.GOOGL 5.IBKR 6.AEP 7.WRLD 8.GOOG 9.SQM 10.KMT
2018-12-31	10	$250.7M	0	1BRK-B 2HLF 3V Top holdings2018-12-31 1.BRK-B 2.HLF 3.V 4.GOOGL 5.IBKR 6.WRLD 7.GOOG 8.TSLA 9.SQM 10.KMT

Holding changes this quarter

Bronte Capital Management Pty Ltd.'s most significant position changes for 2026-03-31: New buy: Nektar Therapeutics (NKTR); New buy: Walt Disney Co/the (DIS); New buy: Ishares Russell 2000 Growth (IWO); New buy: Brown Forman CORP; New buy: Aurora Innovation INC (AUR).

Position changes disclosed by Bronte Capital Management Pty Ltd. for the quarter ending 2026-03-31, including ticker, issuer, weight change, shares change, and action
#	Ticker	Issuer	Weight Change	Shares Change	Action
1	TBBB	BBB Foods Inc.	+0.4%	+23.69%	Add
2	CTVA	Corteva INC	+0.4%	-11.64%	Trim
3	REGN	Regeneron Pharmaceuticals	+0.3%	+2.25%	Add
4	JRVR	James River Group Holdings I	+0.1%	+174.30%	Add
5	TPB	Turning Point Brands INC	+0.1%	+75.85%	Add
6	✓	Vaneck ETF Trust	0%	-4.40%	Trim
7	NEM	Newmont CORP	0%	-3.14%	Trim
8	✓	Vaneck ETF Trust	—	-4.31%	Trim
9	GUTS	Fractyl Health INC	—	—	Unchanged
10	ENVX	Enovix CORP	—	—	Unchanged
11	IVVD	Invivyd INC	—	—	Unchanged
12	ALEC	Alector INC	—	—	Unchanged
13	RANI	Rani Therapeutics Holdings-a	—	—	Unchanged
14	MIST	Milestone Pharmaceuticals In	—	—	Unchanged
15	CCCC	C4 Therapeutics INC	—	—	Unchanged
16	CHRS	Coherus Oncology INC	—	—	Unchanged
17	FATE	Fate Therapeutics INC	—	—	Unchanged
18	MDLZ	Mondelez International Inc-a	0%	-13.28%	Trim
19	NICE	Nice LTD - Spon Adr	0%	-15.90%	Trim
20	OLED	Universal Display CORP	0%	-4.57%	Trim
21	RSKD	Riskified Ltd.	-0.1%	-4.90%	Trim
22	IBB	Ishares Biotechnology ETF	-0.1%	-4.26%	Trim
23	HLF	Herbalife Ltd.	-0.1%	-16.09%	Trim
24	B	Barrick Mining CORP	-0.1%	-3.71%	Trim
25	RAMP	Liveramp Holdings INC	-0.1%	-3.78%	Trim
26	GHC	Graham Holdings Co-class B	-0.1%	-4.27%	Trim
27	SQM	Quimica Y Minera Chil-sp Adr	-0.1%	-25.11%	Trim
28	BBWI	Bath & Body Works INC	-0.2%	-38.92%	Trim
29	ALNY	Alnylam Pharmaceuticals INC	-0.3%	-4.17%	Trim
30	✓	Sotera Health Co	-0.3%	-3.57%	Trim
31	AMZN	Amazon.com INC	-0.5%	+2.92%	Add
32	PINS	Pinterest Inc- Class A	-0.5%	-15.86%	Trim
33	FCNCA	First Citizens Bcshs -cl A	-0.6%	-3.40%	Trim
34	SBH	Sally Beauty Holdings INC	-0.8%	-70.06%	Trim
35	BRK-B	Berkshire Hathaway Inc-cl B	-0.8%	-4.47%	Trim
36	PM	Philip Morris International	-0.8%	-14.42%	Trim
37	COF	Capital One Financial CORP	-0.9%	+6.74%	Add
38	IBKR	Interactive Brokers Gro-cl A	-1%	-13.76%	Trim
39	✓	Visa Inc-class A Shares	-1.1%	+1.79%	Add
40	GOOGL	Alphabet Inc-cl A	-2.1%	-8.29%	Trim
41	NKTR	Nektar Therapeutics	—	NEW	New buy
42	DIS	Walt Disney Co/the	—	NEW	New buy
43	IWO	Ishares Russell 2000 Growth	—	NEW	New buy
44	✓	Brown Forman CORP	—	NEW	New buy
45	AUR	Aurora Innovation INC	—	NEW	New buy
46	GLBE	Global-E Online Ltd.	—	NEW	New buy
47	PCTY	Paylocity Holding CORP	—	NEW	New buy
48	BF-A	Brown-forman Corp-class A	—	NEW	New buy
49	FICO	Fair Isaac CORP	—	EXIT	Sold out
50	VRSK	Verisk Analytics INC	—	NEW	New buy

Filing History

Period	Filed	Type	EDGAR
2026-03-31	2026-04-27	13F-HR	View on EDGAR
2025-12-31	2026-02-03	13F-HR	View on EDGAR
2025-09-30	2025-11-05	13F-HR	View on EDGAR
2025-06-30	2025-08-12	13F-HR	View on EDGAR
2025-03-31	2025-05-14	13F-HR	View on EDGAR
2024-12-31	2025-02-10	13F-HR	View on EDGAR
2024-09-30	2024-11-05	13F-HR	View on EDGAR
2024-06-30	2024-08-07	13F-HR	View on EDGAR
2024-03-31	2024-05-13	13F-HR	View on EDGAR
2023-12-31	2024-02-07	13F-HR	View on EDGAR
2023-09-30	2023-11-06	13F-HR	View on EDGAR
2023-06-30	2023-08-08	13F-HR	View on EDGAR
2023-03-31	2023-05-12	13F-HR	View on EDGAR
2022-12-31	2023-02-14	13F-HR	View on EDGAR
2022-09-30	2022-11-03	13F-HR	View on EDGAR
2022-06-30	2022-08-08	13F-HR	View on EDGAR
2022-06-30	2022-08-08	Amendment	View on EDGAR
2022-03-31	2022-05-13	13F-HR	View on EDGAR
2021-12-31	2022-02-10	13F-HR	View on EDGAR
2021-09-30	2021-11-09	13F-HR	View on EDGAR
2021-06-30	2021-08-09	13F-HR	View on EDGAR
2021-03-31	2021-04-13	13F-HR	View on EDGAR
2020-12-31	2021-02-03	13F-HR	View on EDGAR
2020-09-30	2020-12-16	Amendment	View on EDGAR
2020-09-30	2020-11-12	13F-HR	View on EDGAR
2020-06-30	2020-08-11	Amendment	View on EDGAR
2020-06-30	2020-08-10	13F-HR	View on EDGAR
2020-03-31	2020-05-08	13F-HR	View on EDGAR
2019-12-31	2020-01-29	13F-HR	View on EDGAR
2019-09-30	2019-11-08	13F-HR	View on EDGAR
2019-06-30	2019-08-13	13F-HR	View on EDGAR
2019-03-31	2019-05-10	13F-HR	View on EDGAR
2018-12-31	2019-02-13	13F-HR	View on EDGAR

FAQ

What is Bronte Capital Management Pty Ltd. and what type of investor is it?

Bronte Capital Management Pty Ltd. 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 $1.0B, spread across 54 disclosed positions.

What are Bronte Capital Management Pty Ltd.'s largest equity positions?

Based on the latest 13F filing, Bronte Capital Management Pty Ltd.'s top holdings by market value are: 1. Regeneron Pharmaceuticals (REGN) — $186.5M (18.5%) 2. Alphabet Inc-cl A (GOOGL) — $109.7M (10.9%) 3. Interactive Brokers Gro-cl A (IBKR) — $86.0M (8.5%) 4. Berkshire Hathaway Inc-cl B (BRK-B) — $74.3M (7.4%) 5. Visa Inc-class A Shares — $72.3M (7.2%)

What changes did Bronte Capital Management Pty Ltd. make in its most recent portfolio filing?

In the latest reported quarter, Bronte Capital Management Pty Ltd. made 41 notable position adjustments: 9 new positions were initiated, 7 existing holdings were added to, 24 positions were partially reduced, and 1 were completely exited. The largest of these moves: New buy: Nektar Therapeutics (NKTR); New buy: Walt Disney Co/the (DIS); New buy: Ishares Russell 2000 Growth (IWO); New buy: Brown Forman CORP; New buy: Aurora Innovation INC (AUR)

What sectors does Bronte Capital Management Pty Ltd. focus on?

Bronte Capital Management Pty Ltd. is concentrated in the following sectors based on its current disclosed equity portfolio: • Health Care: 35.6% • Communication Services: 24.3% • Financials: 19.4% • Consumer Discretionary: 10.7% • Consumer Staples: 10.1%

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Bronte Capital Management Pty Ltd. 13F Filing History & Holdings

CIK: 0001471085

Diversified strategyMomentum followerQuality / disciplined sizing

Total reported value

$1.0B

Reporting period: 2026-03-31 · Number of holdings: 54

Bronte Capital Management Pty Ltd. disclosed 54 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $1.0B and a quarterly turnover rate of 21.5%.

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

Personality snowflake

Concentration: 31.01
Portfolio Stability: 21.51
Momentum/Contrarian: 100
Sector conviction: 73.4
Diversification: 100
Sizing Uniformity: 82.64

Position sizes vary widely across the portfolio (a coefficient of variation of 1.74), with a handful of outsized bets alongside many smaller positions.

Recent moves

Trim GOOGL
-8.3%　-$20.5M
Trim 83601L105
+1.8%　-$10.1M
Trim IBKR
-13.8%　-$9.6M
Trim COF
+6.7%　-$8.4M
Trim PM
-14.4%　-$7.5M
Trim BRK-B
-4.5%　-$7.3M

Holdings Map

New buyAddUnchangedTrim

Top 10 holdings by weight

Full holdings list this quarter

Showing top 51 holdings (of 54 total)

#	Ticker	Issuer	Asset Subclass	Weight	Weight Change	Shares Change
1	REGN	Regeneron Pharmaceuticals	Stock-Healthcare	18.46%	+0.29%	+2.25%
2	GOOGL	Alphabet Inc-cl A	Stock-Comm Services	10.86%	-2.13%	-8.29%
3	IBKR	Interactive Brokers Gro-cl A	Stock-Financials	8.51%	-1.02%	-13.76%
4	BRK-B	Berkshire Hathaway Inc-cl B	Stock-Other	7.36%	-0.78%	-4.47%
5	✓	Visa Inc-class A Shares	Stock-Other	7.16%	-1.07%	+1.79%
6	AMZN	Amazon.com INC	Stock-Consumer Disc	5.89%	-0.50%	+2.92%
7	PM	Philip Morris International	Stock-Consumer Staples	5.58%	-0.80%	-14.42%
8	CTVA	Corteva INC	Stock-Materials	4.17%	+0.37%	-11.64%
9	COF	Capital One Financial CORP	Stock-Financials	3.38%	-0.86%	+6.74%
10	FCNCA	First Citizens Bcshs -cl A	Stock-Financials	3.08%	-0.57%	-3.40%
11	NKTR	Nektar Therapeutics	Stock-Other	2.86%	+2.86%	NEW
12	✓	Vaneck ETF Trust	ETF-Other	1.89%	+0.03%	-4.40%
13	DIS	Walt Disney Co/the	Stock-Comm Services	1.77%	+1.77%	NEW
14	TBBB	BBB Foods Inc.	Stock-Other	1.71%	+0.40%	+23.69%
15	HLF	Herbalife Ltd.	Stock-Other	1.37%	-0.07%	-16.09%
16	GHC	Graham Holdings Co-class B	Stock-Industrials	1.34%	-0.12%	-4.27%
17	IWO	Ishares Russell 2000 Growth	ETF-Small Cap	1.30%	+1.30%	NEW
18	✓	Brown Forman CORP	Stock-Other	1.29%	+1.29%	NEW
19	ALNY	Alnylam Pharmaceuticals INC	Stock-Healthcare	1.22%	-0.32%	-4.17%
20	✓	Sotera Health Co	Stock-Other	1.20%	-0.34%	-3.57%
21	IBB	Ishares Biotechnology ETF	ETF-Tech	1.16%	-0.06%	-4.26%
22	SQM	Quimica Y Minera Chil-sp Adr	Stock-Other	0.98%	-0.14%	-25.11%
23	AUR	Aurora Innovation INC	Stock-Consumer Disc	0.95%	+0.95%	NEW
24	NEM	Newmont CORP	Stock-Materials	0.81%	+0.03%	-3.14%
25	PINS	Pinterest Inc- Class A	Stock-Comm Services	0.78%	-0.54%	-15.86%
26	GLBE	Global-E Online Ltd.	Stock-Other	0.65%	+0.65%	NEW
27	B	Barrick Mining CORP	Stock-Materials	0.64%	-0.08%	-3.71%
28	RAMP	Liveramp Holdings INC	Stock-Other	0.59%	-0.09%	-3.78%
29	PCTY	Paylocity Holding CORP	Stock-Tech	0.39%	+0.39%	NEW
30	TPB	Turning Point Brands INC	Stock-Other	0.37%	+0.11%	+75.85%
31	MDLZ	Mondelez International Inc-a	Stock-Consumer Staples	0.32%	-0.03%	-13.28%
32	✓	Vaneck ETF Trust	ETF-Other	0.32%	—	-4.31%
33	SBH	Sally Beauty Holdings INC	Stock-Other	0.30%	-0.75%	-70.06%
34	BBWI	Bath & Body Works INC	Stock-Consumer Disc	0.29%	-0.22%	-38.92%
35	BF-A	Brown-forman Corp-class A	Stock-Other	0.27%	+0.27%	NEW
36	JRVR	James River Group Holdings I	Stock-Other	0.21%	+0.13%	+174.30%
37	RSKD	Riskified Ltd.	Stock-Other	0.19%	-0.06%	-4.90%
38	NICE	Nice LTD - Spon Adr	Stock-Tech	0.19%	-0.04%	-15.90%
39	OLED	Universal Display CORP	Stock-Tech	0.10%	-0.04%	-4.57%
40	VRSK	Verisk Analytics INC	Stock-Industrials	0.05%	+0.05%	NEW
41	ENVX	Enovix CORP	Stock-Other	0.01%	—	—
42	ALEC	Alector INC	Stock-Other	—	—	—
43	CHRS	Coherus Oncology INC	Stock-Other	—	—	—
44	CRBU	Caribou Biosciences INC	Stock-Other	—	—	—
45	FATE	Fate Therapeutics INC	Stock-Other	—	—	—
46	CCCC	C4 Therapeutics INC	Stock-Other	—	—	—
47	PLRX	Pliant Therapeutics INC	Stock-Other	—	—	—
48	IVVD	Invivyd INC	Stock-Other	—	—	—
49	MIST	Milestone Pharmaceuticals In	Stock-Other	—	—	—
50	RANI	Rani Therapeutics Holdings-a	Stock-Other	—	—	—

1–50 of 51

Portfolio Performance

Performance for Q3 2026

-1.1%

Performance Last 4 Quarters

+21.4%

Based on 69% of reported portfolio value with available pricing

Stdev: +14.8%
Beta: +0.79
Alpha: -2.7%
Max Drawdown: -16.3%
Annualized Perf: +9.9%
Batting Avg vs S&P: +45.5%
Sortino: +1.22
Stutzer: +0.21
Treynor: +0.13
Sterling: +0.46
Calmar: +0.61
Information Ratio: -0.58
Tracking Error: +10.6%
Stdev Down: +8.7%
Winning Months %: +60.6%
Losing Months %: +39.4%
Best 12 Months: +24.7%
Worst 12 Months: -9.3%
Efficiency Ratio: +0.25
Sharpe: +0.72
Stdev Sectors: +9.5%
Skewness: -0.04
Kurtosis: -0.63
Upside Potential: +3.11

Reported value over time

Sector allocation

Sector allocation over time

Quarterly history

Period	Holdings	Total value	Stability	Top holdings
2026-03-31	54	$1.0B	22	1REGN 2GOOGL 3IBKR Top holdings2026-03-31 1.REGN 2.GOOGL 3.IBKR 4.BRK-B 5.83601L 6.AMZN 7.PM 8.CTVA 9.COF 10.FCNCA
2025-12-31	44	$1.0B	32	1REGN 2GOOGL 3IBKR Top holdings2025-12-31 1.REGN 2.GOOGL 3.IBKR 4.83601L 5.BRK-B 6.AMZN 7.PM 8.COF 9.CTVA 10.FCNCA
2025-09-30	30	$1.1B	45	1IBKR 2GOOGL 3REGN Top holdings2025-09-30 1.IBKR 2.GOOGL 3.REGN 4.BRK-B 5.83601L 6.PM 7.AMZN 8.COF 9.IBB 10.CTVA
2025-06-30	27	$1.3B	0	1IBKR 2BRK-B 3PM Top holdings2025-06-30 1.IBKR 2.BRK-B 3.PM 4.REGN 5.83601L 6.GOOGL 7.AMZN 8.COF 9.IJR 10.CTVA
2025-03-31	26	$1.2B	100	1IJR 2BRK-B 3REGN Top holdings2025-03-31 1.IJR 2.BRK-B 3.REGN 4.IBKR 5.PM 6.83601L 7.GOOGL 8.AMZN 9.DFSEUR 10.FCNCA
2024-12-31	24	$1.3B	0	1IJR 2REGN 3IBKR Top holdings2024-12-31 1.IJR 2.REGN 3.IBKR 4.GOOGL 5.BRK-B 6.AMZN 7.83601L 8.PM 9.DFSEUR 10.FCNCA
2024-09-30	25	$1.2B	0	1BRK-B 2GOOGL 3REGN Top holdings2024-09-30 1.BRK-B 2.GOOGL 3.REGN 4.IBKR 5.IJR 6.83601L 7.AMZN 8.PM 9.MTCH 10.DFSEUR
2024-06-30	28	$1.3B	0	1GOOGL 2REGN 3BRK-B Top holdings2024-06-30 1.GOOGL 2.REGN 3.BRK-B 4.IBKR 5.IJR 6.AMZN 7.83601L 8.PINS 9.PM 10.HB6
2024-03-31	30	$1.2B	0	1GOOGL 2BRK-B 3REGN Top holdings2024-03-31 1.GOOGL 2.BRK-B 3.REGN 4.IBKR 5.83601L 6.AMZN 7.PINS 8.HB6 9.PM 10.FCNCA
2023-12-31	30	$1.1B	0	1GOOGL 2BRK-B 3REGN Top holdings2023-12-31 1.GOOGL 2.BRK-B 3.REGN 4.83601L 5.IBKR 6.AMZN 7.PINS 8.IWM 9.HLF 10.HB6
2023-09-30	28	$992.8M	0	1BRK-B 2GOOGL 3REGN Top holdings2023-09-30 1.BRK-B 2.GOOGL 3.REGN 4.IBKR 5.83601L 6.M8216R 7.HLF 8.PINS 9.PM 10.FCNCA
2023-06-30	32	$1.0B	0	1BRK-B 2GOOGL 3REGN Top holdings2023-06-30 1.BRK-B 2.GOOGL 3.REGN 4.IBKR 5.V 6.IWM 7.IBB 8.HLF 9.ATVIEUR 10.VBK
2023-03-31	30	$861.9M	0	1BRK-B 2REGN 3GOOGL Top holdings2023-03-31 1.BRK-B 2.REGN 3.GOOGL 4.IBKR 5.V 6.HLF 7.ATVIEUR 8.IBB 9.PINS 10.CTVA
2022-12-31	27	$792.6M	0	1BRK-B 2REGN 3GOOGL Top holdings2022-12-31 1.BRK-B 2.REGN 3.GOOGL 4.IBKR 5.V 6.HLF 7.CTVA 8.HB6 9.PINS 10.IBB
2022-09-30	28	$802.9M	0	1BRK-B 2GOOGL 3REGN Top holdings2022-09-30 1.BRK-B 2.GOOGL 3.REGN 4.HLF 5.IBKR 6.V 7.CTVA 8.ATVIEUR 9.PINS 10.IBB
2022-06-30	32	$872.5M	0	1GOOGL 2BRK-B 3REGN Top holdings2022-06-30 1.GOOGL 2.BRK-B 3.REGN 4.HLF 5.V 6.IBKR 7.CTVA 8.IBB 9.ATVIEUR 10.IWO
2022-03-31	31	$1.2B	0	1IWM 2GOOGL 3IWO Top holdings2022-03-31 1.IWM 2.GOOGL 3.IWO 4.REGN 5.HLF 6.IBKR 7.CTVA 8.PINS 9.ATVIEUR 10.STT
2021-12-31	29	$1.5B	0	1IWM 2IWO 3GOOGL Top holdings2021-12-31 1.IWM 2.IWO 3.GOOGL 4.BRK-B 5.HLF 6.XBI 7.REGN 8.IBKR 9.CTVA 10.V
2021-09-30	27	$1.4B	0	1IWM 2SPY 3IWO Top holdings2021-09-30 1.IWM 2.SPY 3.IWO 4.GOOGL 5.BRK-B 6.HLF 7.REGN 8.IBKR 9.V 10.CTVA
2021-06-30	21	$1.4B	77	1IWM 2SPY 3IWO Top holdings2021-06-30 1.IWM 2.SPY 3.IWO 4.GOOGL 5.HLF 6.BRK-B 7.REGN 8.IBKR 9.V 10.CTVA
2021-03-31	17	$881.6M	56	1IWM 2BRK-B 3GOOGL Top holdings2021-03-31 1.IWM 2.BRK-B 3.GOOGL 4.HLF 5.IBKR 6.IWO 7.V 8.SPY 9.CTVA 10.REGN
2020-12-31	15	$632.9M	32	1BRK-B 2HLF 3IBKR Top holdings2020-12-31 1.BRK-B 2.HLF 3.IBKR 4.V 5.IWM 6.SPY 7.CTVA 8.GOOG 9.GOOGL 10.BNY
2020-09-30	13	$567.9M	36	1BRK-B 2HLF 3GOOGL Top holdings2020-09-30 1.BRK-B 2.HLF 3.GOOGL 4.V 5.IBKR 6.SPY 7.CTVA 8.NEM 9.GOOG 10.BNY
2020-06-30	11	$570.1M	34	1SPY 2HLF 3V Top holdings2020-06-30 1.SPY 2.HLF 3.V 4.BRK-B 5.GOOGL 6.IBKR 7.GOOG 8.CTVA 9.NEM 10.GDX
2020-03-31	13	$610.8M	35	1SPY 2BRK-B 3HLF Top holdings2020-03-31 1.SPY 2.BRK-B 3.HLF 4.V 5.IBKR 6.GOOGL 7.CTVA 8.GOOG 9.META 10.NEM
2019-12-31	9	$515.5M	50	1SPY 2BRK-B 3HLF Top holdings2019-12-31 1.SPY 2.BRK-B 3.HLF 4.V 5.GOOGL 6.IBKR 7.TSLA 8.CTVA 9.GOOG
2019-09-30	12	$361.7M	32	1BRK-B 2HLF 3V Top holdings2019-09-30 1.BRK-B 2.HLF 3.V 4.GOOGL 5.IBKR 6.CTVA 7.AEP 8.GOOG 9.TSLA 10.SPY
2019-06-30	11	$280.6M	18	1BRK-B 2V 3HLF Top holdings2019-06-30 1.BRK-B 2.V 3.HLF 4.GOOGL 5.IBKR 6.AEP 7.WRLD 8.GOOG 9.TSLA 10.SPY
2019-03-31	11	$266.5M	21	1BRK-B 2HLF 3V Top holdings2019-03-31 1.BRK-B 2.HLF 3.V 4.GOOGL 5.IBKR 6.AEP 7.WRLD 8.GOOG 9.SQM 10.KMT
2018-12-31	10	$250.7M	0	1BRK-B 2HLF 3V Top holdings2018-12-31 1.BRK-B 2.HLF 3.V 4.GOOGL 5.IBKR 6.WRLD 7.GOOG 8.TSLA 9.SQM 10.KMT

Holding changes this quarter

Position changes disclosed by Bronte Capital Management Pty Ltd. for the quarter ending 2026-03-31, including ticker, issuer, weight change, shares change, and action
#	Ticker	Issuer	Weight Change	Shares Change	Action
1	TBBB	BBB Foods Inc.	+0.4%	+23.69%	Add
2	CTVA	Corteva INC	+0.4%	-11.64%	Trim
3	REGN	Regeneron Pharmaceuticals	+0.3%	+2.25%	Add
4	JRVR	James River Group Holdings I	+0.1%	+174.30%	Add
5	TPB	Turning Point Brands INC	+0.1%	+75.85%	Add
6	✓	Vaneck ETF Trust	0%	-4.40%	Trim
7	NEM	Newmont CORP	0%	-3.14%	Trim
8	✓	Vaneck ETF Trust	—	-4.31%	Trim
9	GUTS	Fractyl Health INC	—	—	Unchanged
10	ENVX	Enovix CORP	—	—	Unchanged
11	IVVD	Invivyd INC	—	—	Unchanged
12	ALEC	Alector INC	—	—	Unchanged
13	RANI	Rani Therapeutics Holdings-a	—	—	Unchanged
14	MIST	Milestone Pharmaceuticals In	—	—	Unchanged
15	CCCC	C4 Therapeutics INC	—	—	Unchanged
16	CHRS	Coherus Oncology INC	—	—	Unchanged
17	FATE	Fate Therapeutics INC	—	—	Unchanged
18	MDLZ	Mondelez International Inc-a	0%	-13.28%	Trim
19	NICE	Nice LTD - Spon Adr	0%	-15.90%	Trim
20	OLED	Universal Display CORP	0%	-4.57%	Trim
21	RSKD	Riskified Ltd.	-0.1%	-4.90%	Trim
22	IBB	Ishares Biotechnology ETF	-0.1%	-4.26%	Trim
23	HLF	Herbalife Ltd.	-0.1%	-16.09%	Trim
24	B	Barrick Mining CORP	-0.1%	-3.71%	Trim
25	RAMP	Liveramp Holdings INC	-0.1%	-3.78%	Trim
26	GHC	Graham Holdings Co-class B	-0.1%	-4.27%	Trim
27	SQM	Quimica Y Minera Chil-sp Adr	-0.1%	-25.11%	Trim
28	BBWI	Bath & Body Works INC	-0.2%	-38.92%	Trim
29	ALNY	Alnylam Pharmaceuticals INC	-0.3%	-4.17%	Trim
30	✓	Sotera Health Co	-0.3%	-3.57%	Trim
31	AMZN	Amazon.com INC	-0.5%	+2.92%	Add
32	PINS	Pinterest Inc- Class A	-0.5%	-15.86%	Trim
33	FCNCA	First Citizens Bcshs -cl A	-0.6%	-3.40%	Trim
34	SBH	Sally Beauty Holdings INC	-0.8%	-70.06%	Trim
35	BRK-B	Berkshire Hathaway Inc-cl B	-0.8%	-4.47%	Trim
36	PM	Philip Morris International	-0.8%	-14.42%	Trim
37	COF	Capital One Financial CORP	-0.9%	+6.74%	Add
38	IBKR	Interactive Brokers Gro-cl A	-1%	-13.76%	Trim
39	✓	Visa Inc-class A Shares	-1.1%	+1.79%	Add
40	GOOGL	Alphabet Inc-cl A	-2.1%	-8.29%	Trim
41	NKTR	Nektar Therapeutics	—	NEW	New buy
42	DIS	Walt Disney Co/the	—	NEW	New buy
43	IWO	Ishares Russell 2000 Growth	—	NEW	New buy
44	✓	Brown Forman CORP	—	NEW	New buy
45	AUR	Aurora Innovation INC	—	NEW	New buy
46	GLBE	Global-E Online Ltd.	—	NEW	New buy
47	PCTY	Paylocity Holding CORP	—	NEW	New buy
48	BF-A	Brown-forman Corp-class A	—	NEW	New buy
49	FICO	Fair Isaac CORP	—	EXIT	Sold out
50	VRSK	Verisk Analytics INC	—	NEW	New buy

Filing History

Period	Filed	Type	EDGAR
2026-03-31	2026-04-27	13F-HR	View on EDGAR
2025-12-31	2026-02-03	13F-HR	View on EDGAR
2025-09-30	2025-11-05	13F-HR	View on EDGAR
2025-06-30	2025-08-12	13F-HR	View on EDGAR
2025-03-31	2025-05-14	13F-HR	View on EDGAR
2024-12-31	2025-02-10	13F-HR	View on EDGAR
2024-09-30	2024-11-05	13F-HR	View on EDGAR
2024-06-30	2024-08-07	13F-HR	View on EDGAR
2024-03-31	2024-05-13	13F-HR	View on EDGAR
2023-12-31	2024-02-07	13F-HR	View on EDGAR
2023-09-30	2023-11-06	13F-HR	View on EDGAR
2023-06-30	2023-08-08	13F-HR	View on EDGAR
2023-03-31	2023-05-12	13F-HR	View on EDGAR
2022-12-31	2023-02-14	13F-HR	View on EDGAR
2022-09-30	2022-11-03	13F-HR	View on EDGAR
2022-06-30	2022-08-08	13F-HR	View on EDGAR
2022-06-30	2022-08-08	Amendment	View on EDGAR
2022-03-31	2022-05-13	13F-HR	View on EDGAR
2021-12-31	2022-02-10	13F-HR	View on EDGAR
2021-09-30	2021-11-09	13F-HR	View on EDGAR
2021-06-30	2021-08-09	13F-HR	View on EDGAR
2021-03-31	2021-04-13	13F-HR	View on EDGAR
2020-12-31	2021-02-03	13F-HR	View on EDGAR
2020-09-30	2020-12-16	Amendment	View on EDGAR
2020-09-30	2020-11-12	13F-HR	View on EDGAR
2020-06-30	2020-08-11	Amendment	View on EDGAR
2020-06-30	2020-08-10	13F-HR	View on EDGAR
2020-03-31	2020-05-08	13F-HR	View on EDGAR
2019-12-31	2020-01-29	13F-HR	View on EDGAR
2019-09-30	2019-11-08	13F-HR	View on EDGAR
2019-06-30	2019-08-13	13F-HR	View on EDGAR
2019-03-31	2019-05-10	13F-HR	View on EDGAR
2018-12-31	2019-02-13	13F-HR	View on EDGAR