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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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.
| # | 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 |
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