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CIK: 0001644956
Total reported value
$33.3B
$33.3B
413 檔
24.0%
During the Q4 2025 filing period, William Blair Investment Management, LLC (CIK: 0001644956) submitted its Form 13F report to the U.S. SEC, disclosing a tracked public equity portfolio valued at $33.3B across 413 reported positions.
In Q4 2025, William Blair Investment Management, LLC adopted a defensive or profit-taking posture, trimming 100 positions and completely liquidating 26 holdings to manage risk exposure.
Showing top 200 holdings (of 413 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | NVDA | Nvidia CORP | Stock-Tech | 5.53% | +0.02% | -8.13% | |
| 2 | TSM | Taiwan Semiconductor-sp Adr | Stock-Tech | 5.07% | +0.93% | -6.80% | |
| 3 | MSFT | Microsoft CORP | Stock-Tech | 4.71% | -1.24% | -9.03% | |
| 4 | AAPL | Apple Inc | Stock-Tech | 4.13% | -1.20% | -3.13% | |
| 5 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 2.82% | -0.76% | -0.77% | |
| 6 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 2.75% | +1.05% | +26.91% | |
| 7 | AVGO | Broadcom Inc | Stock-Tech | 2.45% | +0.09% | -9.77% | |
| 8 | META | Meta Platforms Inc-class A | Stock-Comm Services | 2.19% | -0.31% | +0.05% | |
| 9 | MA | Mastercard Inc - A | Stock-Financials | 1.73% | -0.33% | -1.85% | |
| 10 | CG | Carlyle Group Inc/the | Stock-Financials | 1.18% | -0.26% | -18.48% | |
| 11 | TRU | Transunion | Stock-Financials | 0.95% | -0.09% | -15.25% | |
| 12 | MELI | Mercadolibre Inc | Stock-Consumer Disc | 0.93% | -0.43% | -27.95% | |
| 13 | NOW | Servicenow Inc | Stock-Tech | 0.92% | -0.36% | +474.52% | |
| 14 | NU | Nu Holdings Ltd. | Stock-Financials | 0.87% | -0.27% | -3.86% | |
| 15 | SE | Sea Ltd-adr | Stock-Comm Services | 0.84% | — | -31.55% | |
| 16 | IDXX | Idexx Laboratories Inc | Stock-Healthcare | 0.83% | -0.18% | -3.85% | |
| 17 | SNOW | Snowflake Inc | Stock-Tech | 0.82% | +0.13% | +159.93% | |
| 18 | INTU | Intuit Inc | Stock-Tech | 0.82% | -0.66% | -9.20% | |
| 19 | MNST | Monster Beverage CORP | Stock-Consumer Staples | 0.80% | +0.03% | +25.39% | |
| 20 | AMD | Advanced Micro Devices | Stock-Tech | 0.80% | +0.63% | +27.92% | |
| 21 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 0.79% | -0.44% | +1.77% | |
| 22 | A | Agilent Technologies Inc | Stock-Healthcare | 0.78% | -0.17% | -3.78% | |
| 23 | LIN | Linde plc | Stock-Materials | 0.77% | -0.25% | +19.74% | |
| 24 | ONTO | Onto Innovation Inc | Stock-Tech | 0.76% | +0.11% | -12.88% | |
| 25 | ORLY | O'reilly Automotive Inc | Stock-Consumer Disc | 0.76% | -0.16% | +2.26% | |
| 26 | ITUB | Itau Unibanco H-spon Prf Adr | Stock-Financials | 0.73% | -0.19% | +24.03% | |
| 27 | CIEN | Ciena CORP | Stock-Tech | 0.72% | -0.31% | -54.99% | |
| 28 | UNH | Unitedhealth Group Inc | Stock-Healthcare | 0.70% | +0.05% | -0.82% | |
| 29 | P | Everpure Inc-a | Stock-Tech | 0.70% | +0.26% | -19.80% | |
| 30 | ORCL | Oracle CORP | Stock-Tech | 0.68% | -0.01% | +13.45% | |
| 31 | DOCS | Doximity Inc-class A | Stock-Healthcare | 0.67% | -0.37% | EXIT | |
| 32 | TYL | Tyler Technologies Inc | Stock-Tech | 0.63% | -0.24% | EXIT | |
| 33 | BAP | Credicorp Ltd. | Stock-Financials | 0.61% | +0.03% | -6.42% | |
| 34 | GMED | Globus Medical Inc - A | Stock-Healthcare | 0.61% | -0.26% | -10.62% | |
| 35 | TLN | Talen Energy CORP | Stock-Utilities | 0.60% | +0.02% | -16.23% | |
| 36 | INSM | Insmed Inc | Stock-Healthcare | 0.59% | -0.29% | -21.48% | |
| 37 | PRMB | Primo Brands CORP | Stock-Consumer Staples | 0.58% | +0.03% | +6.70% | |
| 38 | MDGL | Madrigal Pharmaceuticals Inc | Stock-Healthcare | 0.58% | -0.07% | -13.98% | |
| 39 | MLI | Mueller Industries Inc | Stock-Industrials | 0.57% | -0.04% | -10.78% | |
| 40 | EG | Everest Group, Ltd. | Stock-Financials | 0.55% | -0.03% | -10.31% | |
| 41 | VEEV | Veeva Systems Inc-class A | Stock-Healthcare | 0.55% | -0.37% | EXIT | |
| 42 | QTWO | Q2 Holdings Inc | Stock-Tech | 0.54% | +0.07% | +25.86% | |
| 43 | BWXT | Bwx Technologies Inc | Stock-Industrials | 0.53% | -0.11% | -11.77% | |
| 44 | TWST | Twist Bioscience CORP | Stock-Other | 0.53% | -0.16% | +43.75% | |
| 45 | ARGX | Argenx Se - Adr | Stock-Healthcare | 0.52% | +0.10% | — | |
| 46 | BWIN | Baldwin Insurance Group Inc/ | Stock-Other | 0.51% | +0.05% | +47.78% | |
| 47 | CCJ | Cameco CORP | Stock-Energy | 0.51% | -0.03% | -24.91% | |
| 48 | BCO | Brink's Co/the | Stock-Industrials | 0.50% | -0.01% | -12.73% | |
| 49 | CPRT | Copart Inc | Stock-Industrials | 0.50% | -0.21% | -1.41% | |
| 50 | WAY | Waystar Holding CORP | Stock-Other | 0.48% | — | +0.36% |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | GOOGL | Alphabet Inc-cl A | +1.2% | +26.91% | Add |
| 2 | SNOW | Snowflake Inc | +0.5% | +159.93% | Add |
| 3 | AAPL | Apple Inc | +0.4% | -3.13% | Trim |
| 4 | TSM | Taiwan Semiconductor-sp Adr | +0.4% | -6.80% | Trim |
| 5 | DCI | Donaldson Co Inc | +0.4% | +26235.73% | Add |
| 6 | AMD | Advanced Micro Devices | +0.4% | +27.92% | Add |
| 7 | AMZN | Amazon.com Inc | +0.3% | -0.77% | Trim |
| 8 | MNST | Monster Beverage CORP | +0.3% | +25.39% | Add |
| 9 | TWST | Twist Bioscience CORP | +0.2% | +43.75% | Add |
| 10 | KRYS | Krystal Biotech Inc | +0.2% | +152.07% | Add |
| 11 | GMED | Globus Medical Inc - A | +0.2% | -10.62% | Trim |
| 12 | LSCC | Lattice Semiconductor CORP | +0.2% | +52.49% | Add |
| 13 | ITUB | Itau Unibanco H-spon Prf Adr | +0.2% | +24.03% | Add |
| 14 | MRX | Marex Group plc | +0.2% | +371.96% | Add |
| 15 | RRX | Regal Rexnord CORP | +0.2% | +88.41% | Add |
| 16 | FLS | Flowserve CORP | +0.1% | +142.42% | Add |
| 17 | LOPE | Grand Canyon Education Inc | +0.1% | +281.90% | Add |
| 18 | TECH | Bio-techne CORP | +0.1% | +40.28% | Add |
| 19 | QTWO | Q2 Holdings Inc | +0.1% | +25.86% | Add |
| 20 | BWIN | Baldwin Insurance Group Inc/ | +0.1% | +47.78% | Add |
| 21 | FRPT | Freshpet Inc | +0.1% | +30.94% | Add |
| 22 | GKOS | Glaukos CORP | +0.1% | +1.20% | Add |
| 23 | LAUR | Laureate Education Inc | +0.1% | +52.63% | Add |
| 24 | LIN | Linde plc | +0.1% | +19.74% | Add |
| 25 | CHDN | Churchill Downs Inc | +0.1% | +12.55% | Add |
| 26 | CAVA | Cava Group Inc | +0.1% | +28.09% | Add |
| 27 | AM6 | Amicus Therapeutics Inc | +0.1% | -32.52% | Trim |
| 28 | ONTO | Onto Innovation Inc | +0.1% | -12.88% | Trim |
| 29 | TER | Teradyne Inc | +0.1% | -11.72% | Trim |
| 30 | MDGL | Madrigal Pharmaceuticals Inc | +0.1% | -13.98% | Trim |
| 31 | RVLV | Revolve Group Inc | +0.1% | +16.65% | Add |
| 32 | LLY | Eli Lilly & Co | +0.1% | +108.23% | Add |
| 33 | DBD | Diebold Nixdorf Inc | +0.1% | -0.94% | Trim |
| 34 | RS | Reliance Inc | +0.1% | +24.70% | Add |
| 35 | CRS | Carpenter Technology | +0.1% | -10.44% | Trim |
| 36 | COHR | Coherent CORP | +0.1% | -36.04% | Trim |
| 37 | KWR | Quaker Chemical Corporation | +0.1% | +33.65% | Add |
| 38 | AVGO | Broadcom Inc | +0.1% | -9.77% | Trim |
| 39 | VRTX | Vertex Pharmaceuticals Inc | +0.1% | +6566.95% | Add |
| 40 | ✓ | Inter & Co Inc | +0.1% | +60.58% | Add |
| 41 | NOVT | Novanta Inc | +0.1% | -5.38% | Trim |
| 42 | INSP | Inspire Medical Systems Inc | +0.1% | -10.50% | Trim |
| 43 | NXT | Nextpower Inc-cl A | +0.1% | -7.27% | Trim |
| 44 | VCEL | Vericel CORP | 0% | +0.51% | Add |
| 45 | NOW | Servicenow Inc | 0% | +474.52% | Add |
| 46 | VCYT | Veracyte Inc | 0% | +16.60% | Add |
| 47 | COST | Costco Wholesale CORP | 0% | +1.77% | Add |
| 48 | TYL | Tyler Technologies Inc | 0% | +7.88% | Add |
| 49 | UNH | Unitedhealth Group Inc | 0% | -0.82% | Trim |
| 50 | INSM | Insmed Inc | 0% | -21.48% | Trim |
According to official SEC Form 13F filings, William Blair Investment Management, LLC reported a total U.S. public equity portfolio value of $33.3B across 413 disclosed positions in Q4 2025.
Expert Analysis & Guides for Tracking Wall Street Smart Money Movements
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
In terms of portfolio concentration, the top 5 core holdings (including NVDA, TSM, MSFT) accounted for 24.0% of total reported equity market value during Q4 2025.
Top New Position Initiated
ARGX
市值: $188.1M
Top Position Liquidated / Trimmed
LYV
前期市值: $228.8M
During Q4 2025, William Blair Investment Management, LLC's top holdings by market value included NVDA (5.5%)、TSM (5.1%)、MSFT (4.7%). The largest single position, NVDA, represented 5.5% of total portfolio value.
In Q4 2025, William Blair Investment Management, LLC made 200 total portfolio adjustments, initiating 35 new buys, adding to 39 positions, trimming 100 holdings, and fully liquidating 26 stocks.
All holding records on this page are fetched directly from the U.S. Securities and Exchange Commission (SEC) EDGAR system (Form 13F-HR). AlphaSMO parses CUSIP identifiers and formats data into Schema.org-compliant datasets.
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