ALNYLAM PHARMACEUTICALS INC ALNY
$312.78
+3.7% 52w: $278.09 – $491.22
Latest 13F among current holders filed 11 days ago (Jun 24, 2026)
Price — last 12 months
research preview data278.09384.65491.22
Jun 20, 2025 Jul 2, 2026
Institutional holders
784
-64 QoQ
13F value
$42.44B
-18.7% QoQ
Smart-money holders
39
signal tier ≥ 2
New smart buyers
8
Q1 2026
Options barometer
2.2×
$448.8M calls / $204.8M puts
Institutional value by quarter
Number of holders
Who owns ALNY?
Q1 2026 filings| Fund | Type | Shares | Value | % of fund | Change |
|---|---|---|---|---|---|
| FMR LLC | Long only active | 14.6M | $4.82B | 0.3% | -8.3% |
| Capital World Investors | Long only active | 10.8M | $3.57B | 0.5% | -33.7% |
| BlackRock, Inc. | Index provider | 10.4M | $3.46B | 0.1% | +0.4% |
| Capital Research Global Investors | Long only active | 9.5M | $3.13B | 0.5% | +39.7% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Diversified mechanical | 6.5M | $2.15B | 0.1% | — |
| JPMORGAN CHASE & CO | Bank broker | 6.3M | $2.00B | 0.1% | +34.0% |
| VANGUARD CAPITAL MANAGEMENT LLC | Diversified mechanical | 5.9M | $1.97B | 0.0% | — |
| T. Rowe Price Investment Management, Inc. | Long only active | 5.2M | $1.72B | 1.2% | +78.8% |
| STATE STREET CORP | Index provider | 3.3M | $1.10B | 0.0% | +2.9% |
| GEODE CAPITAL MANAGEMENT, LLC | Index provider | 2.7M | $884.6M | 0.1% | +0.4% |
| BAILLIE GIFFORD & CO ★2 | Long only active | 2.5M | $825.1M | 0.8% | -4.1% |
| TWO SIGMA INVESTMENTS, LP | Quant stat arb | 2.0M | $659.3M | 0.6% | +223.4% |
| WELLINGTON MANAGEMENT GROUP LLP | Long only active | 1.9M | $640.5M | 0.1% | +18.8% |
| Dodge & Cox ★2 | Long only active | 1.9M | $638.3M | 0.4% | -1.8% |
| AMERICAN CENTURY COMPANIES INC | Diversified mechanical | 1.8M | $596.3M | 0.3% | +21.4% |
| PRICE T ROWE ASSOCIATES INC /MD/ | Diversified mechanical | 1.4M | $474.1M | 0.1% | -15.9% |
| Clearbridge Investments, LLC | Other | 1.4M | $448.7M | 0.4% | +127.1% |
| Orbis Allan Gray Ltd ★2 | Fundamental diversified | 1.3M | $441.7M | 1.9% | -17.5% |
| Invesco Ltd. | Index provider | 1.3M | $427.4M | 0.1% | -40.4% |
| MARSHALL WACE, LLP | Quant stat arb | 1.1M | $363.7M | 0.4% | +99.9% |
| D. E. Shaw & Co., Inc. | Quant stat arb | 1.1M | $350.4M | 0.3% | +138.3% |
| MORGAN STANLEY | Bank broker | 1.0M | $331.8M | 0.0% | +3.4% |
| BANK OF AMERICA CORP /DE/ | Bank broker | 966.9K | $319.9M | 0.0% | +41.1% |
| Legal & General Group Plc | Diversified mechanical | 934.9K | $309.3M | 0.1% | -2.8% |
| AQR CAPITAL MANAGEMENT LLC | Quant stat arb | 913.1K | $297.9M | 0.1% | -0.7% |
| NORTHERN TRUST CORP | Index provider | 858.1K | $283.9M | 0.0% | 0.0% |
| VANGUARD FIDUCIARY TRUST CO | Diversified mechanical | 840.9K | $278.2M | 0.1% | — |
| Qube Research & Technologies Ltd | Quant stat arb | 838.2K | $277.3M | 0.4% | +8.2% |
| ROYAL BANK OF CANADA | Bank broker | 791.5K | $261.9M | 0.0% | +33.8% |
| DEUTSCHE BANK AG\ | Bank broker | 761.5K | $251.9M | 0.1% | +7.0% |
| Amundi | Diversified mechanical | 747.5K | $247.3M | 0.1% | +22.8% |
| FEDERATED HERMES, INC. | Diversified mechanical | 687.8K | $227.6M | 0.4% | +9.5% |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Bank broker | 677.5K | $224.2M | 0.0% | +3.9% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Index provider | 673.4K | $222.8M | 0.0% | +3.9% |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | Diversified mechanical | 662.4K | $219.2M | 0.2% | +944.5% |
| LOOMIS SAYLES & CO L P | Other | 512.1K | $169.4M | 0.2% | +4.7% |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | Other | 496.0K | $164.1M | 0.1% | +0.1% |
| Bank of New York Mellon Corp | Diversified mechanical | 491.2K | $162.5M | 0.0% | -2.6% |
| FRANKLIN RESOURCES INC | Long only active | 470.4K | $155.6M | 0.0% | -40.3% |
| GOLDMAN SACHS GROUP INC | Bank broker | 469.4K | $155.3M | 0.0% | +25.1% |
| UBS Group AG | Bank broker | 458.9K | $151.8M | 0.0% | -44.4% |
| MILLENNIUM MANAGEMENT LLC | Multistrat pod | 447.9K | $148.2M | 0.1% | +493.8% |
| Squarepoint Ops LLC | Quant stat arb | 426.7K | $141.2M | 0.3% | +21.6% |
| RAYMOND JAMES FINANCIAL INC | Bank broker | 407.0K | $130.0M | 0.0% | +4.7% |
| Swiss National Bank | Index provider | 387.7K | $128.3M | 0.1% | +7.9% |
| DIMENSIONAL FUND ADVISORS LP | Quant stat arb | 384.2K | $127.1M | 0.0% | +27.3% |
| FIRST TRUST ADVISORS LP | Index provider | 382.7K | $126.6M | 0.1% | +48.9% |
| WELLS FARGO & COMPANY/MN | Bank broker | 342.8K | $113.4M | 0.0% | +33.0% |
| Nuveen, LLC | Diversified mechanical | 322.2K | $106.6M | 0.0% | -43.0% |
| Sumitomo Mitsui Trust Group, Inc. | Diversified mechanical | 314.4K | $104.0M | 0.1% | -4.1% |
Exits are not a bearish signal: our backtest shows stocks specialists exit keep outperforming for 3+ quarters — selling usually means profit-taking, not a forecast.
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