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CIK: 0001644956
Total reported value
$33.3B
$33.3B
433 檔
23.9%
According to the latest 13F quarterly dataset, William Blair Investment Management, LLC managed an equity portfolio of $33.3B at the end of Q4 2024, spanning 433 distinct U.S. exchange-listed positions.
William Blair Investment Management, LLC executed strategic sector rebalancing during Q4 2024, establishing 39 new positions while fully exiting 25 holdings and trimming 82 positions.
Showing top 200 holdings (of 433 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | MSFT | Microsoft CORP | Stock-Tech | 4.56% | -1.24% | -2.88% | |
| 2 | NVDA | Nvidia CORP | Stock-Tech | 4.36% | +0.02% | +4.08% | |
| 3 | TSM | Taiwan Semiconductor-sp Adr | Stock-Tech | 3.72% | +0.93% | -6.04% | |
| 4 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 3.66% | -0.76% | -0.20% | |
| 5 | AAPL | Apple Inc | Stock-Tech | 3.12% | -1.20% | -10.59% | |
| 6 | META | Meta Platforms Inc-class A | Stock-Comm Services | 2.38% | -0.31% | +5.25% | |
| 7 | MA | Mastercard Inc - A | Stock-Financials | 1.85% | -0.33% | +0.47% | |
| 8 | CG | Carlyle Group Inc/the | Stock-Financials | 1.63% | -0.26% | +15.45% | |
| 9 | MELI | Mercadolibre Inc | Stock-Consumer Disc | 1.07% | -0.43% | -21.43% | |
| 10 | NOW | Servicenow Inc | Stock-Tech | 1.05% | -0.36% | -18.57% | |
| 11 | LIN | Linde plc | Stock-Materials | 1.01% | -0.25% | -17.56% | |
| 12 | CRM | Salesforce Inc | Stock-Tech | 0.96% | -0.01% | +1.85% | |
| 13 | CPRT | Copart Inc | Stock-Industrials | 0.94% | -0.21% | +15.39% | |
| 14 | CMG | Chipotle Mexican Grill Inc | Stock-Consumer Disc | 0.92% | -0.08% | +0.62% | |
| 15 | INTU | Intuit Inc | Stock-Tech | 0.90% | -0.66% | +10.65% | |
| 16 | PRMB | Primo Brands CORP | Stock-Consumer Staples | 0.84% | +0.03% | — | |
| 17 | UNH | Unitedhealth Group Inc | Stock-Healthcare | 0.82% | +0.05% | +8.33% | |
| 18 | DOCS | Doximity Inc-class A | Stock-Healthcare | 0.81% | -0.37% | EXIT | |
| 19 | ACN | Accenture plc | Stock-Tech | 0.81% | — | EXIT | |
| 20 | TRU | Transunion | Stock-Financials | 0.76% | -0.09% | +30.59% | |
| 21 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 0.75% | -0.44% | -1.37% | |
| 22 | 8QR | Confluent Inc-class A | Stock-Other | 0.74% | — | -0.27% | |
| 23 | ELF | Elf Beauty Inc | Stock-Consumer Staples | 0.71% | — | EXIT | |
| 24 | CWST | Casella Waste Systems Inc-a | Stock-Industrials | 0.68% | -0.25% | -0.44% | |
| 25 | ORLY | O'reilly Automotive Inc | Stock-Consumer Disc | 0.68% | -0.16% | -1.58% | |
| 26 | SN | SharkNinja, Inc. | Stock-Consumer Disc | 0.67% | +0.07% | +26.41% | |
| 27 | MRCY | Mercury Systems Inc | Stock-Industrials | 0.66% | +0.06% | -11.88% | |
| 28 | DT | Dynatrace Inc | Stock-Tech | 0.65% | +0.12% | -2.72% | |
| 29 | BFAM | Bright Horizons Family Solut | Stock-Consumer Disc | 0.64% | -0.10% | +28.98% | |
| 30 | ACVA | Acv Auctions Inc-a | Stock-Other | 0.64% | -0.10% | EXIT | |
| 31 | CWAN | Clearwater Analytics Holdings, Inc. | Stock-Tech | 0.63% | — | -9.36% | |
| 32 | LRN | Stride Inc | Stock-Consumer Staples | 0.63% | +0.21% | NEW | |
| 33 | AMD | Advanced Micro Devices | Stock-Tech | 0.62% | +0.63% | -13.61% | |
| 34 | RACE | Ferrari N.V. | Stock-Consumer Disc | 0.62% | -0.03% | +6.35% | |
| 35 | CHE | Chemed CORP | Stock-Healthcare | 0.61% | — | EXIT | |
| 36 | LRCX | Lam Research CORP | Stock-Tech | 0.60% | +0.07% | — | |
| 37 | YUMC | Yum China Holdings Inc | Stock-Consumer Disc | 0.60% | — | — | |
| 38 | TLN | Talen Energy CORP | Stock-Utilities | 0.59% | +0.02% | — | |
| 39 | SE | Sea Ltd-adr | Stock-Comm Services | 0.58% | — | +32.48% | |
| 40 | NFE | New Fortress Energy Inc | Stock-Other | 0.57% | — | +40.78% | |
| 41 | LYV | Live Nation Entertainment In | Stock-Comm Services | 0.57% | — | +18.66% | |
| 42 | EG | Everest Group, Ltd. | Stock-Financials | 0.57% | -0.03% | +10.49% | |
| 43 | APO | Apollo Global Management Inc | Stock-Financials | 0.56% | — | -19.27% | |
| 44 | PANW | Palo Alto Networks Inc | Stock-Tech | 0.56% | +0.04% | +59.41% | |
| 45 | SHOP | Shopify Inc - Class A | Stock-Tech | 0.56% | — | EXIT | |
| 46 | EXLS | Exlservice Holdings Inc | Stock-Tech | 0.56% | — | -20.50% | |
| 47 | MLM | Martin Marietta Materials | Stock-Materials | 0.55% | -0.21% | +5.47% | |
| 48 | UBER | Uber Technologies Inc | Stock-Industrials | 0.55% | — | -24.75% | |
| 49 | A | Agilent Technologies Inc | Stock-Healthcare | 0.54% | -0.17% | -0.10% | |
| 50 | BCO | Brink's Co/the | Stock-Industrials | 0.53% | -0.01% | -15.69% |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | PRMB | Primo Brands CORP | +0.8% | NEW | New buy |
| 2 | LRCX | Lam Research CORP | +0.6% | NEW | New buy |
| 3 | YUMC | Yum China Holdings Inc | +0.6% | NEW | New buy |
| 4 | TLN | Talen Energy CORP | +0.6% | NEW | New buy |
| 5 | NVDA | Nvidia CORP | +0.5% | +4.08% | Add |
| 6 | AMZN | Amazon.com Inc | +0.5% | -0.20% | Trim |
| 7 | BAM | Brookfield Asset Mgmt-a | +0.5% | NEW | New buy |
| 8 | QTWO | Q2 Holdings Inc | +0.5% | NEW | New buy |
| 9 | MLI | Mueller Industries Inc | +0.5% | NEW | New buy |
| 10 | WST | West Pharmaceutical Services | +0.5% | +731.80% | Add |
| 11 | FTAI | FTAI Aviation Ltd. | +0.4% | NEW | New buy |
| 12 | DDOG | Datadog Inc - Class A | +0.4% | NEW | New buy |
| 13 | CG | Carlyle Group Inc/the | +0.4% | +15.45% | Add |
| 14 | EPAM | Epam Systems Inc | +0.4% | NEW | New buy |
| 15 | P | Everpure Inc-a | +0.4% | +1725.31% | Add |
| 16 | IDXX | Idexx Laboratories Inc | +0.4% | +701.59% | Add |
| 17 | FLUT | Flutter Entertainment plc | +0.3% | NEW | New buy |
| 18 | NFE | New Fortress Energy Inc | +0.3% | +40.78% | Add |
| 19 | CW | Curtiss-wright CORP | +0.3% | NEW | New buy |
| 20 | GKOS | Glaukos CORP | +0.3% | NEW | New buy |
| 21 | SPOT | Spotify Technology S.A. | +0.3% | NEW | New buy |
| 22 | MDGL | Madrigal Pharmaceuticals Inc | +0.3% | NEW | New buy |
| 23 | AVGO | Broadcom Inc | +0.3% | +202.87% | Add |
| 24 | ELF | Elf Beauty Inc | +0.3% | +40.91% | Add |
| 25 | ACVA | Acv Auctions Inc-a | +0.2% | +43.25% | Add |
| 26 | TSM | Taiwan Semiconductor-sp Adr | +0.2% | -6.04% | Trim |
| 27 | SHOP | Shopify Inc - Class A | +0.2% | +19.25% | Add |
| 28 | ONB | Old National Bancorp | +0.2% | +172.10% | Add |
| 29 | 8QR | Confluent Inc-class A | +0.2% | -0.27% | Trim |
| 30 | CPRT | Copart Inc | +0.2% | +15.39% | Add |
| 31 | SE | Sea Ltd-adr | +0.2% | +32.48% | Add |
| 32 | LRN | Stride Inc | +0.2% | +17.96% | Add |
| 33 | CRM | Salesforce Inc | +0.2% | +1.85% | Add |
| 34 | RY | Royal Bank Of Canada | +0.2% | NEW | New buy |
| 35 | LYV | Live Nation Entertainment In | +0.2% | +18.66% | Add |
| 36 | META | Meta Platforms Inc-class A | +0.2% | +5.25% | Add |
| 37 | BWIN | Baldwin Insurance Group Inc/ | +0.1% | +81.10% | Add |
| 38 | MIR | Mirion Technologies Inc | +0.1% | NEW | New buy |
| 39 | ASO | Academy Sports & Outdoors In | +0.1% | NEW | New buy |
| 40 | GGAL | Grupo Financiero Galicia-adr | +0.1% | +778.89% | Add |
| 41 | WGS | Genedx Holdings CORP | +0.1% | NEW | New buy |
| 42 | DOCS | Doximity Inc-class A | +0.1% | -3.78% | Trim |
| 43 | MA | Mastercard Inc - A | +0.1% | +0.47% | Add |
| 44 | OMF | Onemain Holdings Inc | +0.1% | NEW | New buy |
| 45 | YPF | Ypf S.a.-sponsored Adr | +0.1% | NEW | New buy |
| 46 | MRX | Marex Group plc | +0.1% | +74.23% | Add |
| 47 | GTLS | Chart Industries Inc | +0.1% | -18.03% | Trim |
| 48 | BANR | Banner Corporation | +0.1% | +10213.33% | Add |
| 49 | TRU | Transunion | +0.1% | +30.59% | Add |
| 50 | BMA | Banco Macro Sa-adr | +0.1% | +136.11% | 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 433 disclosed positions in Q4 2024.
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 MSFT, NVDA, TSM) accounted for 23.9% of total reported equity market value during Q4 2024.
Top New Position Initiated
PRMB
市值: $343.5M
Top Position Liquidated / Trimmed
LRCXEUR
前期市值: $252.6M
During Q4 2024, William Blair Investment Management, LLC's top holdings by market value included MSFT (4.6%)、NVDA (4.4%)、TSM (3.7%). The largest single position, MSFT, represented 4.6% of total portfolio value.
In Q4 2024, William Blair Investment Management, LLC made 200 total portfolio adjustments, initiating 39 new buys, adding to 54 positions, trimming 82 holdings, and fully liquidating 25 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.