What is SEC Form 13F? Ultimate Guide to Institutional Equity Filings
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
CIK: 0001644956
Total reported value
$33.3B
$33.3B
412 檔
22.7%
During the Q3 2024 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 412 reported positions.
William Blair Investment Management, LLC executed strategic sector rebalancing during Q3 2024, establishing 24 new positions while fully exiting 26 holdings and trimming 73 positions.
Showing top 200 holdings (of 412 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | MSFT | Microsoft CORP | Stock-Tech | 4.84% | -1.24% | +1.24% | |
| 2 | NVDA | Nvidia CORP | Stock-Tech | 3.82% | +0.02% | +1.22% | |
| 3 | TSM | Taiwan Semiconductor-sp Adr | Stock-Tech | 3.52% | +0.93% | -7.59% | |
| 4 | AAPL | Apple Inc | Stock-Tech | 3.28% | -1.20% | +44.12% | |
| 5 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 3.15% | -0.76% | +1.55% | |
| 6 | META | Meta Platforms Inc-class A | Stock-Comm Services | 2.23% | -0.31% | +894.01% | |
| 7 | MA | Mastercard Inc - A | Stock-Financials | 1.74% | -0.33% | -4.74% | |
| 8 | MELI | Mercadolibre Inc | Stock-Consumer Disc | 1.67% | -0.43% | +2.57% | |
| 9 | LIN | Linde plc | Stock-Materials | 1.41% | -0.25% | +7.11% | |
| 10 | CG | Carlyle Group Inc/the | Stock-Financials | 1.22% | -0.26% | -0.60% | |
| 11 | NOW | Servicenow Inc | Stock-Tech | 1.10% | -0.36% | +2.99% | |
| 12 | ACN | Accenture plc | Stock-Tech | 0.99% | — | EXIT | |
| 13 | AMD | Advanced Micro Devices | Stock-Tech | 0.99% | +0.63% | +30.83% | |
| 14 | UBER | Uber Technologies Inc | Stock-Industrials | 0.92% | — | +49.22% | |
| 15 | ICLR | ICON Public Limited Company | Stock-Healthcare | 0.89% | — | +8.70% | |
| 16 | UNH | Unitedhealth Group Inc | Stock-Healthcare | 0.88% | +0.05% | -5.79% | |
| 17 | CMG | Chipotle Mexican Grill Inc | Stock-Consumer Disc | 0.88% | -0.08% | +21.83% | |
| 18 | BWXT | Bwx Technologies Inc | Stock-Industrials | 0.85% | -0.11% | -20.33% | |
| 19 | ISRG | Intuitive Surgical Inc | Stock-Healthcare | 0.83% | -0.01% | +4.93% | |
| 20 | INTU | Intuit Inc | Stock-Tech | 0.81% | -0.66% | -6.63% | |
| 21 | EHC | Encompass Health CORP | Stock-Healthcare | 0.79% | +0.09% | -15.05% | |
| 22 | BCO | Brink's Co/the | Stock-Industrials | 0.79% | -0.01% | -0.52% | |
| 23 | CRM | Salesforce Inc | Stock-Tech | 0.78% | -0.01% | +2.14% | |
| 24 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 0.75% | -0.44% | -6.61% | |
| 25 | CPRT | Copart Inc | Stock-Industrials | 0.75% | -0.21% | +19.01% | |
| 26 | ZTS | Zoetis Inc | Stock-Healthcare | 0.73% | — | +5.88% | |
| 27 | CHE | Chemed CORP | Stock-Healthcare | 0.72% | — | EXIT | |
| 28 | EXK | Exact Sciences CORP | Stock-Materials | 0.72% | — | +10.46% | |
| 29 | ITUB | Itau Unibanco H-spon Prf Adr | Stock-Financials | 0.71% | -0.19% | +13.51% | |
| 30 | TXN | Texas Instruments Inc | Stock-Tech | 0.70% | +0.18% | -17.24% | |
| 31 | DOCS | Doximity Inc-class A | Stock-Healthcare | 0.70% | -0.37% | EXIT | |
| 32 | ORLY | O'reilly Automotive Inc | Stock-Consumer Disc | 0.68% | -0.16% | +5.76% | |
| 33 | PANW | Palo Alto Networks Inc | Stock-Tech | 0.67% | +0.04% | -20.77% | |
| 34 | TRU | Transunion | Stock-Financials | 0.67% | -0.09% | +573.72% | |
| 35 | MRCY | Mercury Systems Inc | Stock-Industrials | 0.67% | +0.06% | +13.76% | |
| 36 | DT | Dynatrace Inc | Stock-Tech | 0.66% | +0.12% | +12.89% | |
| 37 | CWST | Casella Waste Systems Inc-a | Stock-Industrials | 0.65% | -0.25% | -0.55% | |
| 38 | RACE | Ferrari N.V. | Stock-Consumer Disc | 0.65% | -0.03% | +9.73% | |
| 39 | CWAN | Clearwater Analytics Holdings, Inc. | Stock-Tech | 0.65% | — | -0.46% | |
| 40 | BFAM | Bright Horizons Family Solut | Stock-Consumer Disc | 0.64% | -0.10% | -1.57% | |
| 41 | CCJ | Cameco CORP | Stock-Energy | 0.63% | -0.03% | +28.55% | |
| 42 | LRCXEUR | Lam Research CORP | Stock-Tech | 0.62% | — | +4.28% | |
| 43 | EXLS | Exlservice Holdings Inc | Stock-Tech | 0.61% | — | +27.12% | |
| 44 | A | Agilent Technologies Inc | Stock-Healthcare | 0.61% | -0.17% | +61.77% | |
| 45 | SN | SharkNinja, Inc. | Stock-Consumer Disc | 0.60% | +0.07% | -11.76% | |
| 46 | MNST | Monster Beverage CORP | Stock-Consumer Staples | 0.57% | +0.03% | -3.87% | |
| 47 | ACHC | Acadia Healthcare Co Inc | Stock-Other | 0.57% | — | +3.25% | |
| 48 | EG | Everest Group, Ltd. | Stock-Financials | 0.56% | -0.03% | +0.28% | |
| 49 | WAL | Western Alliance Bancorp | Stock-Financials | 0.56% | — | -6.71% | |
| 50 | MLM | Martin Marietta Materials | Stock-Materials | 0.55% | -0.21% | +10.85% |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | META | Meta Platforms Inc-class A | +2% | +894.01% | Add |
| 2 | AAPL | Apple Inc | +1.1% | +44.12% | Add |
| 3 | TRU | Transunion | +0.6% | +573.72% | Add |
| 4 | MANH | Manhattan Associates Inc | +0.4% | NEW | New buy |
| 5 | NVT | nVent Electric plc | +0.4% | NEW | New buy |
| 6 | AZEK | Azek Co Inc/the | +0.4% | NEW | New buy |
| 7 | BCBUSD | Primo Water CORP | +0.4% | +416.63% | Add |
| 8 | SE | Sea Ltd-adr | +0.4% | NEW | New buy |
| 9 | TPG | Tpg Inc | +0.4% | NEW | New buy |
| 10 | MELI | Mercadolibre Inc | +0.3% | +2.57% | Add |
| 11 | UBER | Uber Technologies Inc | +0.3% | +49.22% | Add |
| 12 | EXK | Exact Sciences CORP | +0.3% | +10.46% | Add |
| 13 | A | Agilent Technologies Inc | +0.3% | +61.77% | Add |
| 14 | AVTR | Avantor Inc | +0.3% | +361.58% | Add |
| 15 | DOCS | Doximity Inc-class A | +0.2% | +1.03% | Add |
| 16 | CRDO | Credo Technology Group Holding Ltd | +0.2% | NEW | New buy |
| 17 | MRCY | Mercury Systems Inc | +0.2% | +13.76% | Add |
| 18 | PSN | Parsons CORP | +0.2% | NEW | New buy |
| 19 | INSP | Inspire Medical Systems Inc | +0.2% | +17.64% | Add |
| 20 | AMD | Advanced Micro Devices | +0.2% | +30.83% | Add |
| 21 | EXLS | Exlservice Holdings Inc | +0.2% | +27.12% | Add |
| 22 | TEVA | Teva Pharmaceutical-sp Adr | +0.2% | NEW | New buy |
| 23 | ACVA | Acv Auctions Inc-a | +0.2% | +68.48% | Add |
| 24 | ACN | Accenture plc | +0.2% | +10.22% | Add |
| 25 | RRX | Regal Rexnord CORP | +0.2% | +53.71% | Add |
| 26 | DT | Dynatrace Inc | +0.1% | +12.89% | Add |
| 27 | CWAN | Clearwater Analytics Holdings, Inc. | +0.1% | -0.46% | Trim |
| 28 | LIN | Linde plc | +0.1% | +7.11% | Add |
| 29 | ITUB | Itau Unibanco H-spon Prf Adr | +0.1% | +13.51% | Add |
| 30 | CB | Chubb Limited | +0.1% | NEW | New buy |
| 31 | ACGL | Arch Capital Group Ltd. | +0.1% | +21952.81% | Add |
| 32 | FOXF | Fox Factory Holding CORP | +0.1% | +130.44% | Add |
| 33 | NOW | Servicenow Inc | +0.1% | +2.99% | Add |
| 34 | CF | Cf Industries Holdings Inc | +0.1% | +17.22% | Add |
| 35 | ALTREUR | Altair Engineering Inc - A | +0.1% | +57.55% | Add |
| 36 | RACE | Ferrari N.V. | +0.1% | +9.73% | Add |
| 37 | SN | SharkNinja, Inc. | +0.1% | -11.76% | Trim |
| 38 | BFAM | Bright Horizons Family Solut | +0.1% | -1.57% | Trim |
| 39 | WAL | Western Alliance Bancorp | +0.1% | -6.71% | Trim |
| 40 | CCJ | Cameco CORP | +0.1% | +28.55% | Add |
| 41 | RVLV | Revolve Group Inc | +0.1% | -1.30% | Trim |
| 42 | EVH | Evolent Health Inc - A | +0.1% | -1.73% | Trim |
| 43 | VEEV | Veeva Systems Inc-class A | +0.1% | +25.84% | Add |
| 44 | ESE | Esco Technologies Inc | +0.1% | NEW | New buy |
| 45 | ✓ | Wns Holdings LTD | +0.1% | +204.83% | Add |
| 46 | VRTX | Vertex Pharmaceuticals Inc | +0.1% | NEW | New buy |
| 47 | REXR | Rexford Industrial Realty In | +0.1% | NEW | New buy |
| 48 | ZTS | Zoetis Inc | +0.1% | +5.88% | Add |
| 49 | PEN | Penumbra Inc | +0.1% | +18.95% | Add |
| 50 | EXP | Eagle Materials Inc | +0.1% | -1.53% | 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 412 disclosed positions in Q3 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 22.7% of total reported equity market value during Q3 2024.
Top New Position Initiated
MANH
市值: $175.7M
Top Position Liquidated / Trimmed
AXON
前期市值: $211.0M
During Q3 2024, William Blair Investment Management, LLC's top holdings by market value included MSFT (4.8%)、NVDA (3.8%)、TSM (3.5%). The largest single position, MSFT, represented 4.8% of total portfolio value.
In Q3 2024, William Blair Investment Management, LLC made 200 total portfolio adjustments, initiating 24 new buys, adding to 77 positions, trimming 73 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.
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.