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CIK: 0001644956
Total reported value
$33.3B
$33.3B
414 檔
25.1%
According to the latest 13F quarterly dataset, William Blair Investment Management, LLC managed an equity portfolio of $33.3B at the end of Q3 2025, spanning 414 distinct U.S. exchange-listed positions.
William Blair Investment Management, LLC executed strategic sector rebalancing during Q3 2025, establishing 50 new positions while fully exiting 33 holdings and trimming 70 positions.
Showing top 200 holdings (of 414 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | NVDA | Nvidia CORP | Stock-Tech | 5.58% | +0.02% | -5.73% | |
| 2 | MSFT | Microsoft CORP | Stock-Tech | 5.14% | -1.24% | -3.64% | |
| 3 | TSM | Taiwan Semiconductor-sp Adr | Stock-Tech | 4.64% | +0.93% | -3.02% | |
| 4 | AAPL | Apple Inc | Stock-Tech | 3.70% | -1.20% | +6.98% | |
| 5 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 2.51% | -0.76% | -18.13% | |
| 6 | AVGO | Broadcom Inc | Stock-Tech | 2.40% | +0.09% | -5.00% | |
| 7 | META | Meta Platforms Inc-class A | Stock-Comm Services | 2.25% | -0.31% | -17.00% | |
| 8 | MA | Mastercard Inc - A | Stock-Financials | 1.63% | -0.33% | -9.42% | |
| 9 | SE | Sea Ltd-adr | Stock-Comm Services | 1.60% | — | -3.47% | |
| 10 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 1.56% | +1.05% | +592.03% | |
| 11 | CG | Carlyle Group Inc/the | Stock-Financials | 1.42% | -0.26% | -12.07% | |
| 12 | MELI | Mercadolibre Inc | Stock-Consumer Disc | 1.39% | -0.43% | -3.69% | |
| 13 | DOCS | Doximity Inc-class A | Stock-Healthcare | 1.10% | -0.37% | EXIT | |
| 14 | TRU | Transunion | Stock-Financials | 1.01% | -0.09% | -1.27% | |
| 15 | P | Everpure Inc-a | Stock-Tech | 1.01% | +0.26% | -5.28% | |
| 16 | CIEN | Ciena CORP | Stock-Tech | 0.92% | -0.31% | -9.88% | |
| 17 | NOW | Servicenow Inc | Stock-Tech | 0.89% | -0.36% | +6.69% | |
| 18 | INTU | Intuit Inc | Stock-Tech | 0.86% | -0.66% | -5.78% | |
| 19 | ORLY | O'reilly Automotive Inc | Stock-Consumer Disc | 0.81% | -0.16% | -17.73% | |
| 20 | ORCL | Oracle CORP | Stock-Tech | 0.81% | -0.01% | +28.59% | |
| 21 | NU | Nu Holdings Ltd. | Stock-Financials | 0.81% | -0.27% | +182.92% | |
| 22 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 0.77% | -0.44% | -14.28% | |
| 23 | IDXX | Idexx Laboratories Inc | Stock-Healthcare | 0.76% | -0.18% | -33.00% | |
| 24 | TLN | Talen Energy CORP | Stock-Utilities | 0.75% | +0.02% | -38.31% | |
| 25 | A | Agilent Technologies Inc | Stock-Healthcare | 0.71% | -0.17% | -3.18% | |
| 26 | UNH | Unitedhealth Group Inc | Stock-Healthcare | 0.69% | +0.05% | +12.34% | |
| 27 | PRMB | Primo Brands CORP | Stock-Consumer Staples | 0.68% | +0.03% | +11.62% | |
| 28 | UBER | Uber Technologies Inc | Stock-Industrials | 0.67% | — | -3.91% | |
| 29 | ONTO | Onto Innovation Inc | Stock-Tech | 0.66% | +0.11% | +80.35% | |
| 30 | LIN | Linde plc | Stock-Materials | 0.66% | -0.25% | -11.03% | |
| 31 | LRCX | Lam Research CORP | Stock-Tech | 0.64% | +0.07% | -3.39% | |
| 32 | TYL | Tyler Technologies Inc | Stock-Tech | 0.62% | -0.24% | EXIT | |
| 33 | NVT | nVent Electric plc | Stock-Industrials | 0.61% | +0.12% | -22.91% | |
| 34 | BWXT | Bwx Technologies Inc | Stock-Industrials | 0.60% | -0.11% | -17.27% | |
| 35 | LYV | Live Nation Entertainment In | Stock-Comm Services | 0.59% | — | -13.84% | |
| 36 | EG | Everest Group, Ltd. | Stock-Financials | 0.59% | -0.03% | -5.00% | |
| 37 | LRN | Stride Inc | Stock-Consumer Staples | 0.58% | +0.21% | NEW | |
| 38 | INSM | Insmed Inc | Stock-Healthcare | 0.58% | -0.29% | -6.64% | |
| 39 | VEEV | Veeva Systems Inc-class A | Stock-Healthcare | 0.58% | -0.37% | EXIT | |
| 40 | CCJ | Cameco CORP | Stock-Energy | 0.57% | -0.03% | -31.82% | |
| 41 | BAP | Credicorp Ltd. | Stock-Financials | 0.56% | +0.03% | +71.65% | |
| 42 | ITUB | Itau Unibanco H-spon Prf Adr | Stock-Financials | 0.56% | -0.19% | +0.65% | |
| 43 | RY | Royal Bank Of Canada | Stock-Financials | 0.55% | — | EXIT | |
| 44 | CPRT | Copart Inc | Stock-Industrials | 0.54% | -0.21% | +7.80% | |
| 45 | WAL | Western Alliance Bancorp | Stock-Financials | 0.54% | — | +3.52% | |
| 46 | BCO | Brink's Co/the | Stock-Industrials | 0.53% | -0.01% | -9.84% | |
| 47 | MNST | Monster Beverage CORP | Stock-Consumer Staples | 0.52% | +0.03% | -4.59% | |
| 48 | MLI | Mueller Industries Inc | Stock-Industrials | 0.52% | -0.04% | -14.00% | |
| 49 | WAY | Waystar Holding CORP | Stock-Other | 0.52% | — | +0.45% | |
| 50 | SPOT | Spotify Technology S.A. | Stock-Comm Services | 0.51% | -0.17% | EXIT |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | NVDA | Nvidia CORP | +1.9% | -5.73% | Trim |
| 2 | GOOGL | Alphabet Inc-cl A | +1.3% | +592.03% | Add |
| 3 | TSM | Taiwan Semiconductor-sp Adr | +1.2% | -3.02% | Trim |
| 4 | AVGO | Broadcom Inc | +1% | -5.00% | Trim |
| 5 | MSFT | Microsoft CORP | +0.8% | -3.64% | Trim |
| 6 | P | Everpure Inc-a | +0.7% | -5.28% | Add |
| 7 | NU | Nu Holdings Ltd. | +0.6% | +182.92% | Add |
| 8 | ONTO | Onto Innovation Inc | +0.6% | +80.35% | Add |
| 9 | CIEN | Ciena CORP | +0.6% | -9.88% | Add |
| 10 | BWXT | Bwx Technologies Inc | +0.5% | -17.27% | Add |
| 11 | AAPL | Apple Inc | +0.4% | +6.98% | Add |
| 12 | AMD | Advanced Micro Devices | +0.4% | +72.55% | Add |
| 13 | DOCS | Doximity Inc-class A | +0.4% | +11.68% | Add |
| 14 | BAP | Credicorp Ltd. | +0.3% | +71.65% | Add |
| 15 | NVT | nVent Electric plc | +0.3% | -22.91% | Trim |
| 16 | ITUB | Itau Unibanco H-spon Prf Adr | +0.3% | +0.65% | Add |
| 17 | SE | Sea Ltd-adr | +0.3% | -3.47% | Trim |
| 18 | TRU | Transunion | +0.2% | -1.27% | Add |
| 19 | GRAB | Grab Holdings Limited | +0.2% | +14.72% | Add |
| 20 | PSN | Parsons CORP | +0.2% | -6.60% | Add |
| 21 | CCJ | Cameco CORP | +0.2% | -31.82% | Trim |
| 22 | CADE | Cadence Bank | +0.2% | +196.85% | Add |
| 23 | VEEV | Veeva Systems Inc-class A | +0.2% | +21.39% | Add |
| 24 | MNST | Monster Beverage CORP | +0.2% | -4.59% | Add |
| 25 | MDGL | Madrigal Pharmaceuticals Inc | +0.2% | +17.56% | Add |
| 26 | IWF | Ishares Russell 1000 Growth | +0.2% | — | Add |
| 27 | GTX | Garrett Motion Inc | +0.2% | +50.98% | Add |
| 28 | TLN | Talen Energy CORP | +0.1% | -38.31% | Trim |
| 29 | APPF | Appfolio Inc - A | +0.1% | -24.74% | Add |
| 30 | EXP | Eagle Materials Inc | +0.1% | +0.57% | Add |
| 31 | PWP | Perella Weinberg Partners | +0.1% | +57.24% | Add |
| 32 | TYL | Tyler Technologies Inc | +0.1% | +28.07% | Add |
| 33 | A | Agilent Technologies Inc | +0.1% | -3.18% | Add |
| 34 | MOD | Modine Manufacturing Co | +0.1% | +58.85% | Add |
| 35 | EXK | Exact Sciences CORP | +0.1% | +26.48% | Add |
| 36 | DBD | Diebold Nixdorf Inc | +0.1% | +12.15% | Add |
| 37 | TECH | Bio-techne CORP | +0.1% | +75.88% | Add |
| 38 | INSM | Insmed Inc | +0.1% | -6.64% | Trim |
| 39 | WAY | Waystar Holding CORP | +0.1% | +0.45% | Add |
| 40 | LSCC | Lattice Semiconductor CORP | +0.1% | — | Add |
| 41 | VRRM | Verra Mobility CORP | +0.1% | +34.71% | Add |
| 42 | ALK | Alaska Air Group Inc | +0.1% | -5.67% | Add |
| 43 | NOW | Servicenow Inc | +0.1% | +6.69% | Add |
| 44 | UBER | Uber Technologies Inc | +0.1% | -3.91% | Trim |
| 45 | GOGO | Gogo Inc | +0.1% | +6.94% | Add |
| 46 | MLM | Martin Marietta Materials | +0.1% | -3.26% | Trim |
| 47 | FLS | Flowserve CORP | +0.1% | +0.72% | Add |
| 48 | WAL | Western Alliance Bancorp | +0.1% | +3.52% | Add |
| 49 | IDA | Idacorp Inc | +0.1% | -2.21% | Add |
| 50 | WGS | Genedx Holdings CORP | 0% | -25.21% | Add |
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 414 disclosed positions in Q3 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, MSFT, TSM) accounted for 25.1% of total reported equity market value during Q3 2025.
Top New Position Initiated
ORCL
市值: $311.5M
Top Position Liquidated / Trimmed
YUMC
前期市值: $282.3M
During Q3 2025, William Blair Investment Management, LLC's top holdings by market value included NVDA (5.6%)、MSFT (5.1%)、TSM (4.6%). The largest single position, NVDA, represented 5.6% of total portfolio value.
In Q3 2025, William Blair Investment Management, LLC made 200 total portfolio adjustments, initiating 50 new buys, adding to 47 positions, trimming 70 holdings, and fully liquidating 33 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.
Understand SEC Form 4 insider disclosures for corporate officers, directors, and 10% owners to track executive transactions.
Understand Rule 144 restricted stock sale notices to spot planned insider liquidations before market sell pressure arrives.
Explore the 5% beneficial ownership threshold, 13D vs 13G filing differences, and recent SEC accelerated deadline rules.
Best practices for analyzing 13F quarterly changes without getting misled by stock splits, options, or market valuation drift.
Learn how AlphaSMO's flagship signal detects high-conviction stocks where 13F hedge funds and corporate insiders buy at the same time.