§ BIOTECHNOLOGY
USD · BiotechnologyALNY
ALNYLAM PHARMACEUTICALS INC
USDSector · BiotechnologyBeta · 0.38
§ 01 · PRICE
Price action
1D5D1M6MYTD1YMAX
OPEN 219.04HIGH 221.61LOW 215.4652W 205.87 — 495.55
EVENTSJUN 30 · EARNINGS −23.7%
§ 03 · SIGNAL STACK · WHAT THE INPUTS SAY
13F FLOW
424 increased/new, 288 decreased/exited (13F)
AC 13F Analysis
§ 04 · FUNDAMENTALS · THE BOOKS
| P/E | 134.8 | P/B | 66.57 |
| EPS (TTM) | 2.25 |
§ 05 · WHO OWNS IT
Top institutional holders
| Fund | Shares | % port | Δ Q/Q |
|---|---|---|---|
| Fidelity Management | 14.6M | 0.3% | −8% |
| Capital World Investors | 10.8M | 0.5% | −34% |
| BlackRock, Inc. | 10.4M | 0.1% | +0% |
| Capital Research Global Investors | 9.5M | 0.5% | +40% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 6.5M | n/a | n/a |
| JPMORGAN CHASE & CO | 6.3M | n/a | +34% |
◇ AC INTELLIGENCE
Top institutional owners for ALNY as of the most recent 13F reporting period (Q1 2026 · Period ended Mar 31). Δ Q/Q reflects share-count change vs. the prior filing — positive green means adding, negative red means trimming. Cross-reference with the ownership-mix bars below to see which strategy cohort is driving the flow.
§ 06 · WHO OWNS IT · BY STRATEGY
OTHER34.2% · 611 holders
QUALITY / COMPOUNDER34.1% · 41 holders
DEALER / BANK13.7% · 66 holders
PASSIVE / INDEX13.7% · 12 holders
GROWTH / MOMENTUM1.9% · 2 holders
INCOME / DEFENSIVE1.9% · 37 holders
SYSTEMATIC / QUANT1.7% · 15 holders
DEEP VALUE1.5% · 1 holder
ACTIVIST1.1% · 1 holder
TACTICAL / MACRO0.6% · 5 holders
◇ AC INTELLIGENCE
Ownership mix by behavioral cohort. Top bars indicate which style of capital dominates the float — passive indexing, quality compounders, dealer/bank, systematic quant, etc. Big quality-compounder share means concentrated active conviction; heavy passive share means flows are dictated by index rebalances, not fundamentals.
§ 07 · INSIDER ACTIVITY · LAST 180 DAYS
NO INSIDER FILINGS
◇ AC INTELLIGENCE
No Form 4 filings on record for ALNY in the last 180 days.
§ 08 · COVERAGE · OUR RECENT NOTES
No notes mention ALNY yet.