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.
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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 | CHARLES SCHWAB INVESTMENT MANAGEMENT I | 755,377 | $171M | +82,021 | +12.2% | 15Q | SEC ↗ |
| 33 | Sixth Street Partners Management Compa NEW | 755,377 | $171M | — | +0.0% | 1Q | 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 |