ALNY Institutional Ownership
Alnylam Pharmaceuticals, Inc.
1W: -1.7%
1M: -11.2%
3M: -20.9%
YTD: -43.3%
1Y: -51.1%
3Y: +40.2%
5Y: +9.8%
$226.79
-0.87 (-0.38%)
Weekly Expected Move ±5.6%
$199
$211
$224
$237
$249
Credit Risk of going bust: lower than 72% of companies Debt: 4.0% of company value Bonds: $81.8M held by 45 funds → details ▾
Of US companies ranked in the safest four tenths, about 1 in 3,500 filed for bankruptcy within a year (2020-2025).
If the stock fell to about $0.82 (down 99.6%), Alnylam Pharmaceuticals, Inc. would be worth roughly what it owes.
Total debt $1.27B against a stock market value of $30.35B.
Distance to default 7.98 (Merton model): prices to 2026-10-27, balance sheet 2026-06-30, debt counted $505.5M (short-term plus half of long-term), stock volatility 51.3%; Altman Z'' 1.62. A ranking and a back-test, not a forecast.
Bond figures are fund-reported marks (SEC N-PORT) as of Jul 2026. How these are computed.
If the stock fell to about $0.82 (down 99.6%), Alnylam Pharmaceuticals, Inc. would be worth roughly what it owes.
Total debt $1.27B against a stock market value of $30.35B.
Distance to default 7.98 (Merton model): prices to 2026-10-27, balance sheet 2026-06-30, debt counted $505.5M (short-term plus half of long-term), stock volatility 51.3%; Altman Z'' 1.62. A ranking and a back-test, not a forecast.
Bond figures are fund-reported marks (SEC N-PORT) as of Jul 2026. How these are computed.
Overview
News
Chart
Smart Money
Financials
Income Statement
Cash Flow
Balance Sheet
Earnings
Dividends
Analysis
Technicals
Weather
Peers
ESG
Institutions
ETF Exposure
Dark Pool
Short Interest
Supply Chain
Institutional Ownership — ALNY
877
Institutional Holders
-72 vs prior quarter
0.0%
Ownership
+0.00pp
$38B
Total Invested
89
New Positions
323
Increased
364
Reduced
81
Closed
1.10
Put/Call Ratio
Ownership Trends
Top Institutional Holders (1009 total)
| # | Holder | Shares | Value | Change | Change % | Holding Period | Filing |
|---|---|---|---|---|---|---|---|
| 1 | FMR LLC | 15,023,962 | $3.4B | +444,796 | +3.1% | 89Q | SEC ↗ |
| 2 | Capital World Investors | 11,144,846 | $2.5B | +342,498 | +3.2% | 58Q | SEC ↗ |
| 3 | BlackRock, Inc. | 10,907,675 | $2.5B | +462,767 | +4.4% | 8Q | SEC ↗ |
| 4 | Capital Research Global Investors | 9,750,699 | $2.2B | +279,518 | +3.0% | 16Q | SEC ↗ |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | 6,538,390 | $1.5B | +47,110 | +0.7% | 2Q | SEC ↗ |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 6,029,478 | $1.4B | +82,772 | +1.4% | 2Q | SEC ↗ |
| 7 | T. Rowe Price Investment Management, I | 5,642,173 | $1.3B | +448,849 | +8.6% | 17Q | SEC ↗ |
| 8 | Invesco Ltd. | 3,754,318 | $851M | +970,924 | +34.9% | 49Q | SEC ↗ |
| 9 | STATE STREET CORP | 3,555,689 | $806M | +232,991 | +7.0% | 46Q | SEC ↗ |
| 10 | JPMORGAN CHASE & CO | 2,675,517 | $607M | -3,648,235 | -57.7% | 64Q | SEC ↗ |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | 2,635,840 | $598M | -24,545 | -0.9% | 82Q | SEC ↗ |
| 12 | BAILLIE GIFFORD & CO | 2,439,889 | $553M | -53,977 | -2.2% | 64Q | SEC ↗ |
| 13 | NORGES BANK NEW | 2,271,813 | $515M | — | +0.0% | 1Q | SEC ↗ |
| 14 | WELLINGTON MANAGEMENT GROUP LLP | 2,110,407 | $479M | +174,482 | +9.0% | 52Q | SEC ↗ |
| 15 | Orbis Allan Gray Ltd | 1,987,407 | $451M | +652,582 | +48.9% | 9Q | SEC ↗ |
| 16 | Dodge & Cox | 1,955,393 | $443M | +26,140 | +1.4% | 25Q | SEC ↗ |
| 17 | TWO SIGMA INVESTMENTS, LP | 1,875,937 | $425M | -116,640 | -5.9% | 10Q | SEC ↗ |
| 18 | AMERICAN CENTURY COMPANIES INC | 1,853,956 | $420M | +51,593 | +2.9% | 15Q | SEC ↗ |
| 19 | Clearbridge Investments, LLC | 1,259,483 | $286M | -96,553 | -7.1% | 6Q | SEC ↗ |
| 20 | PRICE T ROWE ASSOCIATES INC /MD | 1,149,201 | $261M | -283,547 | -19.8% | 16Q | SEC ↗ |
| 21 | D. E. Shaw & Co., Inc. | 1,104,109 | $250M | +45,047 | +4.3% | 58Q | SEC ↗ |
| 22 | MORGAN STANLEY | 1,032,150 | $234M | +29,469 | +2.9% | 60Q | SEC ↗ |
| 23 | BANK OF AMERICA CORP /DE | 994,476 | $226M | +27,564 | +2.9% | 15Q | SEC ↗ |
| 24 | Legal & General Group Plc | 924,561 | $210M | -10,320 | -1.1% | 27Q | SEC ↗ |
| 25 | MANUFACTURERS LIFE INSURANCE COMPANY, | 893,795 | $203M | +231,430 | +34.9% | 53Q | SEC ↗ |
| 26 | NORTHERN TRUST CORP | 886,900 | $201M | +28,780 | +3.4% | 81Q | SEC ↗ |
| 27 | ROYAL BANK OF CANADA | 875,859 | $199M | +84,344 | +10.7% | 72Q | SEC ↗ |
| 28 | VANGUARD FIDUCIARY TRUST CO | 862,782 | $196M | +21,894 | +2.6% | 2Q | SEC ↗ |
| 29 | Deep Track Capital, LP NEW | 825,000 | $187M | — | +0.0% | 1Q | SEC ↗ |
| 30 | DEUTSCHE BANK AG | 815,400 | $185M | +53,936 | +7.1% | 52Q | SEC ↗ |
| 31 | Qube Research & Technologies Ltd | 798,715 | $181M | -39,472 | -4.7% | 4Q | SEC ↗ |
| 32 | Sixth Street Partners Management Compa NEW | 755,377 | $171M | — | +0.0% | 1Q | SEC ↗ |
| 33 | CHARLES SCHWAB INVESTMENT MANAGEMENT I | 755,377 | $171M | +82,021 | +12.2% | 15Q | SEC ↗ |
| 34 | LOS ANGELES CAPITAL MANAGEMENT LLC | 729,635 | $165M | +641,357 | +726.5% | 11Q | SEC ↗ |
| 35 | AQR CAPITAL MANAGEMENT LLC | 728,039 | $165M | -185,065 | -20.3% | 14Q | SEC ↗ |
| 36 | UBS AM, a distinct business unit of UB | 727,848 | $165M | +50,329 | +7.4% | 58Q | SEC ↗ |
| 37 | FEDERATED HERMES, INC. | 719,905 | $163M | +32,089 | +4.7% | 11Q | SEC ↗ |
| 38 | UBS Group AG | 627,004 | $142M | +168,134 | +36.6% | 47Q | SEC ↗ |
| 39 | Amundi | 617,471 | $140M | -130,073 | -17.4% | 21Q | SEC ↗ |
| 40 | LOOMIS SAYLES & CO L P | 580,187 | $132M | +68,090 | +13.3% | 21Q | SEC ↗ |
| 41 | GOLDMAN SACHS GROUP INC | 574,757 | $130M | +105,369 | +22.4% | 15Q | SEC ↗ |
| 42 | Bank of New York Mellon Corp | 492,071 | $112M | +871 | +0.2% | 76Q | SEC ↗ |
| 43 | Polar Capital Holdings Plc | 482,751 | $109M | +225,077 | +87.3% | 23Q | SEC ↗ |
| 44 | Paradigm Biocapital Advisors LP NEW | 480,000 | $109M | — | +0.0% | 1Q | SEC ↗ |
| 45 | FRANKLIN RESOURCES INC | 447,699 | $102M | -22,691 | -4.8% | 22Q | SEC ↗ |
| 46 | FIRST TRUST ADVISORS LP | 421,534 | $96M | +38,833 | +10.1% | 47Q | SEC ↗ |
| 47 | RAYMOND JAMES FINANCIAL INC | 392,799 | $89M | -14,157 | -3.5% | 7Q | SEC ↗ |
| 48 | DIMENSIONAL FUND ADVISORS LP | 392,022 | $89M | +7,817 | +2.0% | 83Q | SEC ↗ |
| 49 | Swiss National Bank | 374,080 | $85M | -13,640 | -3.5% | 53Q | SEC ↗ |
| 50 | MASSACHUSETTS FINANCIAL SERVICES CO /M | 350,560 | $80M | -145,444 | -29.3% | 4Q | SEC ↗ |
Recent Activity
New Positions (20)
| Holder | Shares | Value |
|---|---|---|
| NORGES BANK | 2,271,813 | $515M |
| Deep Track Capital, LP | 825,000 | $187M |
| Sixth Street Partners Management Co | 755,377 | $171M |
| Paradigm Biocapital Advisors LP | 480,000 | $109M |
| Jupiter Topco LLC | 135,545 | $31M |
| Davern Capital Partners, LP | 113,085 | $26M |
| Longaeva Partners L.P. | 110,261 | $25M |
| Balyasny Asset Management L.P. | 89,510 | $20M |
| ARROWSTREET CAPITAL, LIMITED PARTNE | 49,601 | $11M |
| Nykredit A/S | 43,641 | $10M |
| Mn Services Vermogensbeheer B.V. | 38,700 | $9M |
| J. Goldman & Co LP | 38,698 | $9M |
| Curated Wealth Partners LLC | 35,628 | $8M |
| Catalyst Funds Management Pty Ltd | 20,803 | $5M |
| KORNITZER CAPITAL MANAGEMENT INC /K | 17,124 | $4M |
| TWINBEECH CAPITAL LP | 14,325 | $3M |
| CenterBook Partners LP | 12,173 | $3M |
| SIMPLEX TRADING, LLC | 11,567 | $3M |
| Campbell & CO Investment Adviser LL | 11,183 | $3M |
| SPHERA FUNDS MANAGEMENT LTD. | 10,800 | $2M |
Sold Out (20)
| Holder | Prev Shares | Prev Value |
|---|---|---|
| 1832 Asset Management L.P. | 440,145 | $100M |
| JENNISON ASSOCIATES LLC | 277,759 | $63M |
| HRT FINANCIAL LP | 128,633 | $29M |
| Skandinaviska Enskilda Banken AB (p | 66,218 | $15M |
| Integral Health Asset Management, L | 60,000 | $14M |
| PARNASSUS INVESTMENTS, LLC | 48,991 | $11M |
| LORD, ABBETT & CO. LLC | 35,406 | $8M |
| FengHe Fund Management Pte. Ltd. | 32,500 | $7M |
| Zurich Insurance Group Ltd/FI | 30,322 | $7M |
| Mizuho Markets Cayman LP | 24,958 | $6M |
| BANCO BILBAO VIZCAYA ARGENTARIA, S. | 21,926 | $5M |
| Varma Mutual Pension Insurance Co | 21,100 | $5M |
| Avidity Partners Management LP | 21,000 | $5M |
| Thrivent Financial for Lutherans | 20,470 | $5M |
| Public Sector Pension Investment Bo | 18,014 | $4M |
| Artia Global Partners LP | 17,400 | $4M |
| Alberta Investment Management Corp | 12,600 | $3M |
| Virtue Capital Management, LLC | 12,079 | $3M |
| SILVERCREST ASSET MANAGEMENT GROUP | 10,429 | $2M |
| Atika Capital Management LLC | 10,339 | $2M |
Biggest Increases (20)
| Holder | Added | Change % | Total Shares |
|---|---|---|---|
| Invesco Ltd. | +970,924 | +34.9% | 3,754,318 |
| Orbis Allan Gray Ltd | +652,582 | +48.9% | 1,987,407 |
| LOS ANGELES CAPITAL MANAGEMENT LLC | +641,357 | +726.5% | 729,635 |
| BlackRock, Inc. | +462,767 | +4.4% | 10,907,675 |
| T. Rowe Price Investment Management | +448,849 | +8.6% | 5,642,173 |
| FMR LLC | +444,796 | +3.1% | 15,023,962 |
| Capital World Investors | +342,498 | +3.2% | 11,144,846 |
| Capital Research Global Investors | +279,518 | +3.0% | 9,750,699 |
| STATE STREET CORP | +232,991 | +7.0% | 3,555,689 |
| MANUFACTURERS LIFE INSURANCE COMPAN | +231,430 | +34.9% | 893,795 |
| Polar Capital Holdings Plc | +225,077 | +87.3% | 482,751 |
| WELLINGTON MANAGEMENT GROUP LLP | +174,482 | +9.0% | 2,110,407 |
| UBS Group AG | +168,134 | +36.6% | 627,004 |
| CITADEL ADVISORS LLC | +167,614 | +715.8% | 191,029 |
| CANADA PENSION PLAN INVESTMENT BOAR | +125,308 | +60.0% | 334,246 |
| SUSQUEHANNA INTERNATIONAL GROUP, LL | +120,192 | +69.0% | 294,460 |
| Vinva Investment Management Ltd | +118,371 | +323.4% | 154,972 |
| Hudson Bay Capital Management LP | +108,720 | +271.8% | 148,720 |
| GOLDMAN SACHS GROUP INC | +105,369 | +22.4% | 574,757 |
| Candriam S.C.A. | +90,182 | +40.2% | 314,512 |
Biggest Decreases (20)
| Holder | Reduced | Change % | Total Shares |
|---|---|---|---|
| JPMORGAN CHASE & CO | -3,648,235 | -57.7% | 2,675,517 |
| MARSHALL WACE, LLP | -839,519 | -76.4% | 259,799 |
| PRICE T ROWE ASSOCIATES INC /MD | -283,547 | -19.8% | 1,149,201 |
| Allspring Global Investments Holdin | -279,247 | -99.1% | 2,546 |
| Bellevue Group AG | -233,451 | -99.5% | 1,092 |
| Squarepoint Ops LLC | -192,724 | -45.2% | 233,999 |
| AQR CAPITAL MANAGEMENT LLC | -185,065 | -20.3% | 728,039 |
| VOLORIDGE INVESTMENT MANAGEMENT, LL | -184,717 | -97.6% | 4,500 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | -151,218 | -71.3% | 60,986 |
| MASSACHUSETTS FINANCIAL SERVICES CO | -145,444 | -29.3% | 350,560 |
| MILLENNIUM MANAGEMENT LLC | -131,886 | -29.4% | 316,001 |
| Amundi | -130,073 | -17.4% | 617,471 |
| TWO SIGMA INVESTMENTS, LP | -116,640 | -5.9% | 1,875,937 |
| ORBIMED ADVISORS LLC | -102,000 | -85.7% | 17,000 |
| Soleus Capital Management, L.P. | -98,600 | -74.9% | 33,050 |
| Clearbridge Investments, LLC | -96,553 | -7.1% | 1,259,483 |
| BARCLAYS PLC | -85,105 | -38.6% | 135,518 |
| PINEBRIDGE INVESTMENTS LLC | -75,710 | -27.9% | 195,709 |
| Fiera Capital Corp | -75,298 | -95.5% | 3,524 |
| Quadrature Capital Ltd | -62,588 | -73.4% | 22,653 |