CIK: 0000897378
Total reported value
$16.3B
Reporting period: 2026-06-30 · Number of holdings: 376
CONGRESS ASSET MANAGEMENT CO disclosed 376 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $16.3B and a quarterly turnover rate of 40.2%.
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Congress Asset Management Co's disclosed holdings carry a Herfindahl concentration index of 0.009 — mathematically equivalent to about 111 equally-sized positions, well below its 376 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 1.55), with a handful of outsized bets alongside many smaller positions.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
New buy ARM
Trim PRIM
-99.3% -$116.4M
Trim MLM
-74.4% -$104.9M
Trim BSX
-99.4% -$101.8M
Trim PEN
-96.2% -$100.4M
New buy KLIC
This quarter, Congress Asset Management rotated aggressively: it exited medtech (BSX, PEN) and construction-linked names (PRIM, MLM), replacing them with new positions in semiconductor names (ARM, KLIC) and adding to biotech (LGND) and an industrial (MIR). With a momentum personality score of 100/100, this is straight momentum chasing — sell prior laggards, buy AI momentum. No hedging, just pure alpha hunt in the hottest market narrative.
The fund has pushed tech to over 30% of the portfolio, and the new buys amplify exposure to the AI supply chain. The embedded macro trade: AI capital spending stays robust while the rest of the economy stalls. The opposite view — a reacceleration in growth that lifts construction and materials — would leave this portfolio overweight in crowded tech positions bought at elevated valuations.
376 positions and an HHI of 0.009 scream diversification, but a 100/100 momentum tilt tells the real story: every single position is a trend-following wager. This is a recipe for a liquidity trap. When the momentum factor snaps — and it always does — the fund will be forced to liquidate hundreds of small, illiquid positions at once. The absence of concentration creates the illusion of safety, but the correlation during a momentum crash will turn these micro-positions into a coordinated slide.
The above is AI-generated from public regulatory filings and summarizes historical data only. It is not investment advice.
Showing top 200 holdings (of 376 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | NVDA | Nvidia CORP | Stock-Tech | 3.24% | +0.10% | +4.70% | |
| 2 | AAPL | Apple INC | Stock-Tech | 2.87% | -0.10% | -1.33% | |
| 3 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 2.24% | +0.07% | -3.26% | |
| 4 | MSFT | Microsoft CORP | Stock-Tech | 1.87% | +0.18% | +27.77% | |
| 5 | AVGO | Broadcom INC | Stock-Tech | 1.72% | +0.04% | -2.56% | |
| 6 | V | Visa Inc-class A Shares | Stock-Financials | 1.40% | +0.18% | +18.04% | |
| 7 | GEV | GE Vernova INC | Stock-Industrials | 1.39% | +0.15% | -3.09% | |
| 8 | APH | Amphenol Corp-cl A | Stock-Tech | 1.32% | +0.44% | +26.21% | |
| 9 | LGND | Ligand Pharmaceuticals | Stock-Healthcare | 1.28% | +0.56% | +30.77% | |
| 10 | ANET | Arista Networks INC | Stock-Tech | 1.23% | — | -32.10% | |
| 11 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 1.20% | — | -3.32% | |
| 12 | STRL | Sterling Infrastructure INC | Stock-Industrials | 1.19% | — | -53.65% | |
| 13 | GS | Goldman Sachs Group INC | Stock-Financials | 1.13% | — | -3.87% | |
| 14 | UFPT | Ufp Technologies INC | Stock-Other | 1.12% | +0.39% | +31.33% | |
| 15 | ETN | Eaton Corporation plc | Stock-Industrials | 1.08% | — | -18.00% | |
| 16 | ASML | ASML Holding N.V. | Stock-Tech | 1.08% | +0.30% | +6.82% | |
| 17 | AMZN | Amazon.com INC | Stock-Consumer Disc | 1.08% | — | -18.74% | |
| 18 | MOG-A | Moog Inc-class A | Stock-Other | 1.06% | +0.22% | +0.93% | |
| 19 | MDB | Mongodb INC | Stock-Tech | 1.06% | +0.53% | +69.34% | |
| 20 | MOD | Modine Manufacturing Co | Stock-Consumer Disc | 1.03% | — | -3.29% | |
| 21 | HWM | Howmet Aerospace INC | Stock-Industrials | 1.03% | — | -21.84% | |
| 22 | NVT | nVent Electric plc | Stock-Industrials | 1.03% | — | -12.29% | |
| 23 | META | Meta Platforms Inc-class A | Stock-Comm Services | 1.01% | — | -3.85% | |
| 24 | WELL | Welltower INC | Stock-Real Estate | 1.01% | — | -3.81% | |
| 25 | NPO | Enpro INC | Stock-Industrials | 1.00% | +0.28% | +8.70% | |
| 26 | NOVT | Novanta INC | Stock-Other | 0.97% | +0.20% | +7.04% | |
| 27 | CW | Curtiss-wright CORP | Stock-Industrials | 0.93% | — | -12.76% | |
| 28 | PH | Parker Hannifin CORP | Stock-Industrials | 0.92% | — | -3.97% | |
| 29 | LLY | Eli Lilly & Co | Stock-Healthcare | 0.91% | +0.22% | +18.21% | |
| 30 | ARM | Arm Holdings Plc-adr | Stock-Tech | 0.89% | +0.89% | NEW | |
| 31 | TGTX | Tg Therapeutics INC | Stock-Healthcare | 0.88% | +0.36% | +19.93% | |
| 32 | TKO | Tko Group Holdings INC | Stock-Comm Services | 0.88% | — | -2.90% | |
| 33 | TJX | Tjx Companies INC | Stock-Consumer Disc | 0.86% | -0.52% | -23.22% | |
| 34 | RGEN | Repligen CORP | Stock-Healthcare | 0.85% | +0.18% | +26.87% | |
| 35 | ORLY | O'reilly Automotive INC | Stock-Consumer Disc | 0.83% | — | -3.58% | |
| 36 | IBKR | Interactive Brokers Gro-cl A | Stock-Financials | 0.82% | +0.35% | +57.25% | |
| 37 | BOOT | Boot Barn Holdings INC | Stock-Consumer Disc | 0.81% | — | +11.15% | |
| 38 | CVLT | Commvault Systems INC | Stock-Tech | 0.81% | +0.38% | +20.09% | |
| 39 | WMB | Williams Cos INC | Stock-Energy | 0.80% | — | -3.96% | |
| 40 | VCEL | Vericel CORP | Stock-Other | 0.80% | +0.45% | +93.53% | |
| 41 | UTI | Universal Technical Institut | Stock-Other | 0.79% | +0.23% | +39.37% | |
| 42 | ECL | Ecolab INC | Stock-Materials | 0.78% | — | -4.10% | |
| 43 | CRDO | Credo Technology Group Holding Ltd | Stock-Tech | 0.77% | +0.53% | +28.11% | |
| 44 | LIVN | LivaNova PLC | Stock-Other | 0.76% | +0.18% | +17.84% | |
| 45 | MIR | Mirion Technologies INC | Stock-Industrials | 0.74% | +0.59% | +500.10% | |
| 46 | ISRG | Intuitive Surgical INC | Stock-Healthcare | 0.74% | — | -3.67% | |
| 47 | IDCC | Interdigital INC | Stock-Tech | 0.73% | — | +9.18% | |
| 48 | PWR | Quanta Services INC | Stock-Industrials | 0.72% | — | -4.03% | |
| 49 | KLIC | Kulicke & Soffa Industries | Stock-Tech | 0.72% | +0.72% | NEW | |
| 50 | EAT | Brinker International INC | Stock-Consumer Disc | 0.71% | — | +11.31% |
Performance for Q3 2026
+2%
Performance Last 4 Quarters
+13.1%
Based on 79% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-06-30 | 376 | $16.3B | 40 | |
| 2026-03-31 | 417 | $14.0B | 29 | |
| 2025-12-31 | 381 | $14.2B | 29 | |
| 2025-09-30 | 392 | $15.0B | 51 | |
| 2025-06-30 | 382 | $14.6B | 0 | |
| 2025-03-31 | 365 | $13.4B | 100 | |
| 2024-12-31 | 386 | $14.8B | 0 | |
| 2024-09-30 | 357 | $14.7B | 0 | |
| 2024-06-30 | 364 | $14.0B | 0 | |
| 2024-03-31 | 357 | $14.0B | 0 | |
| 2023-12-31 | 371 | $12.7B | 0 | |
| 2023-09-30 | 374 | $11.3B | 0 | |
| 2023-06-30 | 373 | $11.5B | 0 | |
| 2023-03-31 | 368 | $10.7B | 0 | |
| 2022-12-31 | 375 | $10.0B | 0 | |
| 2022-09-30 | 365 | $9.3B | 0 | |
| 2022-06-30 | 366 | $10.4B | 0 | |
| 2022-03-31 | 361 | $11.8B | 0 | |
| 2021-12-31 | 366 | $13.1B | 0 | |
| 2021-09-30 | 357 | $12.8B | 0 | |
| 2021-06-30 | 362 | $12.0B | 100 | |
| 2021-03-31 | 355 | $11.1B | 18 | |
| 2020-12-31 | 349 | $10.6B | 21 | |
| 2020-09-30 | 334 | $9.2B | 19 | |
| 2020-06-30 | 323 | $8.4B | 35 | |
| 2020-03-31 | 329 | $6.6B | 36 | |
| 2019-12-31 | 344 | $8.2B | 19 | |
| 2019-09-30 | 344 | $7.8B | 21 | |
| 2019-06-30 | 352 | $7.9B | 15 | |
| 2019-03-31 | 351 | $7.6B | 28 | |
| 2018-12-31 | 363 | $6.6B | 38 | |
| 2018-09-30 | 363 | $7.7B | 19 | |
| 2018-06-30 | 367 | $7.3B | 23 | |
| 2018-03-31 | 378 | $7.1B | 25 | |
| 2017-12-31 | 373 | $6.9B | 24 | |
| 2017-09-30 | 384 | $6.5B | 34 | |
| 2017-06-30 | 254 | $5.6B | 23 | |
| 2017-03-31 | 251 | $5.2B | 22 | |
| 2016-12-31 | 257 | $4.8B | 23 | |
| 2016-09-30 | 250 | $4.5B | 17 | |
| 2016-06-30 | 225 | $4.3B | 30 | |
| 2016-03-31 | 228 | $4.1B | 27 | |
| 2015-12-31 | 232 | $4.0B | 20 | |
| 2015-09-30 | 216 | $3.9B | 34 | |
| 2015-06-30 | 231 | $3.5B | 32 | |
| 2015-03-31 | 231 | $4.2B | 24 | |
| 2014-12-31 | 239 | $3.9B | 18 | |
| 2014-09-30 | 240 | $3.9B | 29 | |
| 2014-06-30 | 243 | $3.9B | 30 | |
| 2014-03-31 | 242 | $4.0B | 39 | |
| 2013-12-31 | 229 | $3.8B | 19 | |
| 2013-09-30 | 223 | $3.6B | 35 | |
| 2013-06-30 | 222 | $3.4B | — |
Congress Asset Management Co's most significant position changes for 2026-06-30: New buy: Arm Holdings Plc-adr (ARM); New buy: Kulicke & Soffa Industries (KLIC); New buy: Archrock INC (AROC); New buy: Vita Coco Co Inc/the (COCO); New buy: Power Integrations INC (POWI).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | ARM | Arm Holdings Plc-adr | +0.9% | NEW | New buy |
| 2 | KLIC | Kulicke & Soffa Industries | +0.7% | NEW | New buy |
| 3 | MIR | Mirion Technologies INC | +0.6% | +500.10% | Add |
| 4 | LGND | Ligand Pharmaceuticals | +0.6% | +30.77% | Add |
| 5 | AROC | Archrock INC | +0.6% | NEW | New buy |
| 6 | MDB | Mongodb INC | +0.5% | +69.34% | Add |
| 7 | CRDO | Credo Technology Group Holding Ltd | +0.5% | +28.11% | Add |
| 8 | COCO | Vita Coco Co Inc/the | +0.5% | NEW | New buy |
| 9 | TXN | Texas Instruments INC | +0.5% | +5820.13% | Add |
| 10 | POWI | Power Integrations INC | +0.5% | NEW | New buy |
| 11 | AXON | Axon Enterprise INC | +0.5% | NEW | New buy |
| 12 | COHR | Coherent CORP | +0.5% | +15798.50% | Add |
| 13 | VCEL | Vericel CORP | +0.5% | +93.53% | Add |
| 14 | APH | Amphenol Corp-cl A | +0.4% | +26.21% | Add |
| 15 | MU | Micron Technology INC | +0.4% | NEW | New buy |
| 16 | UFPT | Ufp Technologies INC | +0.4% | +31.33% | Add |
| 17 | CVLT | Commvault Systems INC | +0.4% | +20.09% | Add |
| 18 | TGTX | Tg Therapeutics INC | +0.4% | +19.93% | Add |
| 19 | IBKR | Interactive Brokers Gro-cl A | +0.4% | +57.25% | Add |
| 20 | FROG | JFrog Ltd. | +0.4% | +22.62% | Add |
| 21 | ASML | ASML Holding N.V. | +0.3% | +6.82% | Add |
| 22 | NPO | Enpro INC | +0.3% | +8.70% | Add |
| 23 | UTI | Universal Technical Institut | +0.2% | +39.37% | Add |
| 24 | UMBF | Umb Financial CORP | +0.2% | +162.07% | Add |
| 25 | MOG-A | Moog Inc-class A | +0.2% | +0.93% | Add |
| 26 | LLY | Eli Lilly & Co | +0.2% | +18.21% | Add |
| 27 | IMAX | Imax CORP | +0.2% | +67.99% | Add |
| 28 | NOVT | Novanta INC | +0.2% | +7.04% | Add |
| 29 | MSFT | Microsoft CORP | +0.2% | +27.77% | Add |
| 30 | V | Visa Inc-class A Shares | +0.2% | +18.04% | Add |
| 31 | RGEN | Repligen CORP | +0.2% | +26.87% | Add |
| 32 | LIVN | LivaNova PLC | +0.2% | +17.84% | Add |
| 33 | SXT | Sensient Technologies CORP | +0.2% | +9.59% | Add |
| 34 | GEV | GE Vernova INC | +0.2% | -3.09% | Trim |
| 35 | NVDA | Nvidia CORP | +0.1% | +4.70% | Add |
| 36 | GOOGL | Alphabet Inc-cl A | +0.1% | -3.26% | Trim |
| 37 | AVGO | Broadcom INC | 0% | -2.56% | Trim |
| 38 | AAPL | Apple INC | -0.1% | -1.33% | Trim |
| 39 | TSCO | Tractor Supply Company | -0.3% | -99.22% | Trim |
| 40 | VBK | Vanguard Small-cap Grwth ETF | -0.3% | -52.13% | Trim |
| 41 | YETI | Yeti Holdings INC | -0.4% | -99.54% | Trim |
| 42 | DT | Dynatrace INC | -0.5% | EXIT | Sold out |
| 43 | TJX | Tjx Companies INC | -0.5% | -23.22% | Trim |
| 44 | CALX | Calix INC | -0.6% | -99.46% | Trim |
| 45 | NOW | Servicenow INC | -0.6% | -97.63% | Trim |
| 46 | TMO | Thermo Fisher Scientific INC | -0.7% | -95.77% | Trim |
| 47 | BSX | Boston Scientific CORP | -0.7% | -99.37% | Trim |
| 48 | PEN | Penumbra INC | -0.7% | -96.16% | Trim |
| 49 | MLM | Martin Marietta Materials | -0.8% | -74.39% | Trim |
| 50 | PRIM | Primoris Services CORP | -0.8% | -99.27% | Trim |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-06-30 | 2026-07-07 | 13F-HR | View on EDGAR |
| 2026-03-31 | 2026-04-14 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-01-09 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-10-10 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-07-16 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-04-11 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-01-30 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-10-28 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-08-02 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-04-11 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-03-04 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-11-01 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-07-27 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-04-21 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-01-18 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-11-08 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-08-02 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-04-20 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-01-28 | 13F-HR | View on EDGAR |
| 2021-09-30 | 2021-11-08 | 13F-HR | View on EDGAR |
| 2021-06-30 | 2021-08-05 | 13F-HR | View on EDGAR |
| 2021-03-31 | 2021-05-05 | 13F-HR | View on EDGAR |
| 2020-12-31 | 2021-01-26 | 13F-HR | View on EDGAR |
| 2020-09-30 | 2020-11-03 | 13F-HR | View on EDGAR |
| 2020-06-30 | 2020-07-23 | 13F-HR | View on EDGAR |
| 2020-03-31 | 2020-04-21 | 13F-HR | View on EDGAR |
| 2019-12-31 | 2020-02-10 | 13F-HR | View on EDGAR |
| 2019-09-30 | 2019-11-01 | 13F-HR | View on EDGAR |
| 2019-06-30 | 2019-08-07 | 13F-HR | View on EDGAR |
| 2019-03-31 | 2019-05-08 | 13F-HR | View on EDGAR |
| 2018-12-31 | 2019-01-25 | 13F-HR | View on EDGAR |
| 2018-09-30 | 2018-10-26 | 13F-HR | View on EDGAR |
| 2018-06-30 | 2018-07-25 | 13F-HR | View on EDGAR |
| 2018-03-31 | 2018-05-11 | 13F-HR | View on EDGAR |
| 2017-12-31 | 2018-01-30 | 13F-HR | View on EDGAR |
| 2017-09-30 | 2017-10-17 | 13F-HR | View on EDGAR |
| 2017-06-30 | 2017-07-26 | 13F-HR | View on EDGAR |
| 2017-03-31 | 2017-05-10 | 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 | 2016-08-04 | 13F-HR | View on EDGAR |
| 2016-03-31 | 2016-05-09 | 13F-HR | View on EDGAR |
| 2015-12-31 | 2016-01-26 | 13F-HR | View on EDGAR |
| 2015-09-30 | 2015-11-16 | 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 | 2015-02-05 | 13F-HR | View on EDGAR |
| 2014-09-30 | 2014-11-12 | 13F-HR | View on EDGAR |
| 2014-06-30 | 2014-08-12 | 13F-HR | View on EDGAR |
| 2014-03-31 | 2014-05-14 | 13F-HR | View on EDGAR |
| 2013-12-31 | 2014-02-14 | 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 |
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