Alnylam Pharmaceuticals, Inc. (ALNY)
- Sector
- Biotechnology
- Last price
- $232.40
- As of
Kresmion compiles this page from ALNY's SEC filings, its 13F institutional holders and the market events Kresmion detects, each linked to its source.
ALNYLAM PHARMACEUTICALS, INC. (ALNY): 5 institutional managers tracked by Kresmion reported non-option positions in their 2026Q2 Form 13F filings, and the most recent SEC filing on record for the company is a Form 8-K filed 2026-07-30.
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Preview the ALNY dossierActive events for ALNY
- high13F: funds added
3 tracked funds increased ALNY this 2026Q2, institutional consensus
- high13F: large reduction
CITADEL ADVISORS LLC cut 53% of ALNY (2026Q2)
- high13F: large increase
CITADEL ADVISORS LLC added +112% to ALNY (2026Q2)
- high13F: large increase
Point72 Asset Management, L.P. added +214% to ALNY (2026Q2)
- high13F: large increase
MILLENNIUM MANAGEMENT LLC added +1286% to ALNY (2026Q2)
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Every event on ALNY, as it fires
You are seeing 5 of 24 events recorded on ALNY since 2026-05-26.
The five above landed across 2 days. The other 19 were recorded on 4 other days. 16 of the 24 are institutional flow rows, which arrive in batches on filing days.
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Largest reported share positions in ALNY (2026Q2)
| Manager / security | Market value | % portfolio | QoQ |
|---|---|---|---|
| TWO SIGMA INVESTMENTS, LPCUSIP 02043Q107 · 2026Q2 | $564.7M | 0.41% | , |
| D. E. Shaw & Co., Inc.CUSIP 02043Q107 · 2026Q2 | $332.4M | 0.16% | , |
| MILLENNIUM MANAGEMENT LLCCUSIP 02043Q107 · 2026Q2 | $95.1M | 0.03% | , |
| CITADEL ADVISORS LLCCUSIP 02043Q107 · 2026Q2 | $57.5M | 0.01% | , |
| Bridgewater Associates, LPCUSIP 02043Q107 · 2026Q2 | $30M | 0.12% | , |
Quarterly SEC Form 13F disclosures from the managers Kresmion tracks, not a complete ownership ranking. Non-option holdings only; reported put and call positions are excluded. Different securities are labeled by CUSIP. Values are reporting-period snapshots, not current position values. Filings can arrive up to 45 days after quarter-end.
Recent SEC filings, ALNY
- 8-KSEC EDGAR ↗
- 10-QSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 10-QSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 10-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
ALNY against its peers
ALNY's operating margin of 13.5% ranks in the 50th percentile of 18 Biotechnology sub-industry peers, fiscal periods ending between 2025-12-31 and 2026-03-31.
| Metric | ALNY | Peer median | Percentile | n |
|---|---|---|---|---|
| Revenue FY | 3.7B USD | 2.3B USD | 71 | 18 |
| Gross margin | 81.8% | 87.2% | 37 | 14 |
| Operating margin | 13.5% | 17.2% | 50 | 18 |
| Net margin | 8.4% | 13.1% | 43 | 19 |
| Return on equity | 39.8% | 7.1% | 93 | 19 |
| P / E | 99.7x | 27.8x | 95 | 9 |
Peers (22): RPRX, GMAB, BIIB, ROIV, UTHR, RVMD, INCY, ONC, BNTX, INSM, ARGX, EXEL, ASND, NTRA, NBIX, HALO, BBIO, SMMT, REGN, MRNA, BMRN, APGE.D. Left out: IVBXF (no annual filing), CSLLY (no annual filing), SBMFF (no annual filing). Fiscal periods ending between 2025-12-31 and 2026-03-31. Every figure is one full fiscal year read from one annual filing (ALNY: 10-K), reported in USD. Nothing is trailing twelve months and nothing is converted between currencies. Source: SEC EDGAR XBRL company facts (public domain); prices from Kresmion's daily equity market-data snapshot. Open the full comparison.
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