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Not Investment Advice
Also trades as: 0HD2.L (LSE) · $vol 0M · DUL.DE (XETRA) · $vol 0M

ALNY Smart Money

Alnylam Pharmaceuticals, Inc.
1W: -2.4% 1M: -11.1% 3M: -21.1% YTD: -43.1% 1Y: -50.9% 3Y: +41.8% 5Y: +11.7%
$226.79
-0.87 (-0.38%)
After Hours: $226.09 (-0.70, -0.31%)
Weekly Expected Move ±5.6%
$199 $211 $224 $237 $249
NASDAQ · Healthcare · Biotechnology · Tech Score Sell · Power 38 · $30.5B mcap · 133M float · 1.26% daily turnover · Short 40% of daily vol
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 $30.46B.
Distance to default 7.98 (Merton model): prices to 2026-10-26, 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.

🏦 Institutional Activity

Latest: Q2 2026
877
Institutions Holding
-72 vs prior
125.5%
Ownership
-7.91%
89 New
323 Increased
364 Reduced
81 Closed

👔 Insider Trades

25 records
Date Name Title Type Shares Price Value Filing
2026-10-02 SUPRAN BRYAN officer: evp, clo and secretary S-Sale 1,758 $226.88 $399K Filing
2026-09-19 Greenstreet Yvonne officer: chief executive officer A-Grant/Award 107 $— $0 Filing
2026-06-01 PYOTT DAVID E I director S-Sale 17 $302.65 $5K Filing
2026-06-01 PYOTT DAVID E I director S-Sale 495 $300.72 $149K Filing
2026-06-01 PYOTT DAVID E I director S-Sale 1,222 $299.87 $366K Filing
2026-06-01 PYOTT DAVID E I director S-Sale 1,175 $298.91 $351K Filing
2026-06-01 PYOTT DAVID E I director S-Sale 921 $297.71 $274K Filing
2026-05-20 Reitan Colleen F director A-Grant/Award 671 $— $0 Filing
2026-05-20 Ausiello Dennis A director A-Grant/Award 671 $— $0 Filing
2026-05-20 Sigal Charles Elliott director A-Grant/Award 671 $— $0 Filing
2026-05-20 SCHULMAN AMY W director A-Grant/Award 838 $— $0 Filing
2026-05-20 Arbuckle Stuart A director A-Grant/Award 671 $— $0 Filing
2026-05-20 BRANDICOURT OLIVIER director A-Grant/Award 671 $— $0 Filing
2026-05-20 HAMBURG MARGARET A director A-Grant/Award 671 $— $0 Filing
2026-05-20 KELLOGG PETER N director A-Grant/Award 671 $— $0 Filing
2026-05-20 PYOTT DAVID E I director A-Grant/Award 671 $— $0 Filing
2026-04-06 McLaughlin Melissa officer: chief human resources officer S-Sale 199 $333.94 $66K Filing
2026-04-06 McLaughlin Melissa officer: chief human resources officer S-Sale 293 $331.89 $97K Filing
2026-04-06 McLaughlin Melissa officer: chief human resources officer S-Sale 829 $330.46 $274K Filing
2026-04-06 McLaughlin Melissa officer: chief human resources officer S-Sale 909 $329.76 $300K Filing
2026-04-06 McLaughlin Melissa officer: chief human resources officer S-Sale 56 $320.14 $18K Filing
2026-04-02 McLaughlin Melissa officer: chief human resources officer S-Sale 81 $323.64 $26K Filing
2026-04-02 McLaughlin Melissa officer: chief human resources officer S-Sale 8 $325.49 $3K Filing
2026-04-02 McLaughlin Melissa officer: chief human resources officer S-Sale 245 $322.86 $79K Filing
2026-04-02 McLaughlin Melissa officer: chief human resources officer S-Sale 224 $321.64 $72K Filing

🏛️ Congressional Trades

17 records
Date Politician Chamber Type Amount Filing
2026-08-11 Cory Booker Senate Sell $1,001 - $15,000 Filing
2026-08-11 Cory Booker Senate Sell $1,001 - $15,000 Filing
2026-08-11 Cory Booker Senate Sell $1,001 - $15,000 Filing
2025-05-12 Jefferson Shreve House Sell $15,001 - $50,000 Filing
2025-05-11 Jefferson Shreve House Sell $15,001 - $50,000 Filing
2024-01-29 Josh Gottheimer House Sell $1,001 - $15,000 Filing
2024-01-11 Josh Gottheimer House Buy $1,001 - $15,000 Filing
2023-12-11 Josh Gottheimer House Sell $1,001 - $15,000 Filing
2023-03-06 Daniel Goldman House Buy $15,001 - $50,000 Filing
2023-02-10 Ro Khanna House Sell $1,001 - $15,000 Filing
2023-01-31 Daniel Goldman House Sell $15,001 - $50,000 Filing
2022-12-06 Ro Khanna House Buy $1,001 - $15,000 Filing
2022-09-28 Josh Gottheimer House Buy $1,001 - $15,000 Filing
2020-11-13 Josh Gottheimer House Sell $1,001 - $15,000 Filing
2020-04-06 Josh Gottheimer House Buy $1,001 - $15,000 Filing
2018-10-18 Josh Gottheimer House Sell $1,001 - $15,000 Filing
2018-06-01 Josh Gottheimer House Buy $1,001 - $15,000 Filing

🏦 Top Institutional Holders

20 holders
Holder Shares Value Date Reported Filing
FMR LLC 15,023,962 $4.5B +444,796 2026-06-30 Filing
Capital World Investors 11,144,846 $3.4B +342,498 2026-06-30 Filing
BlackRock, Inc. 10,907,675 $3.3B +462,767 2026-06-30 Filing
Capital Research Global Investors 9,750,699 $2.9B +279,518 2026-06-30 Filing
VANGUARD PORTFOLIO MANAGEMENT LLC 6,538,390 $2.0B +47,110 2026-06-30 Filing
VANGUARD CAPITAL MANAGEMENT LLC 6,029,478 $1.8B +82,772 2026-06-30 Filing
Invesco Ltd. 3,754,318 $1.1B +970,924 2026-06-30 Filing
STATE STREET CORP 3,555,689 $1.1B +232,991 2026-06-30 Filing
GEODE CAPITAL MANAGEMENT, LLC 2,635,840 $791M -24,545 2026-06-30 Filing
JPMORGAN CHASE & CO 2,675,517 $785M -3,648,235 2026-06-30 Filing
BAILLIE GIFFORD & CO 2,439,889 $734M -53,977 2026-06-30 Filing
NORGES BANK 2,271,813 $684M +2,271,813 2026-06-30 Filing
WELLINGTON MANAGEMENT GROUP LLP 2,110,407 $635M +174,482 2026-06-30 Filing
Orbis Allan Gray Ltd 1,987,407 $598M +652,582 2026-06-30 Filing
Dodge & Cox 1,955,393 $589M +26,140 2026-06-30 Filing
TWO SIGMA INVESTMENTS, LP 1,875,937 $565M -116,640 2026-06-30 Filing
AMERICAN CENTURY COMPANIES INC 1,853,956 $558M +51,593 2026-06-30 Filing
Clearbridge Investments, LLC 1,259,483 $379M -96,553 2026-06-30 Filing
D. E. Shaw & Co., Inc. 1,104,109 $332M +45,047 2026-06-30 Filing
MORGAN STANLEY 1,032,150 $311M +29,469 2026-06-30 Filing

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For informational purposes only. Not investment advice. Data sourced from SEC filings. Privacy Terms