The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
This stock page is the Follow view. The Build view lets your agent query ALKS owners, fund changes, insider filings, and source links through REST or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/ALKS"
Use Arkolith to show who owns ALKS, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BAKER BROS. ADVISORS LP | $354.0M | 10.0M | —Held | Q1 2026 | |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | $336.3M | 9.5M | ▲New +9.5M sh | Q1 2026 | |
| 3 | STATE STREET CORP | $334.7M | 9.5M | ▼−0.1% Reduced · −8K sh | Q1 2026 | |
| 4 | Commodore Capital LP | $148.5M | 4.2M | ▲+18% Added · +650K sh | Q1 2026 | |
| 5 | Holocene Advisors, LP | $81.9M | 2.3M | ▲New +2.3M sh | Q1 2026 | |
| 6 | CITADEL ADVISORS LLC | $79.3M | 2.2M | ▲+87% Added · +1.0M sh | Q1 2026 | |
| 7 | BVF INC/IL | $70.7M | 2.0M | ▲New +2.0M sh | Q1 2026 | |
| 8 | Soleus Capital Management, L.P. | $69.7M | 2.0M | ▲+49% Added · +649K sh | Q1 2026 | |
| 9 | RTW INVESTMENTS, LP | $59.1M | 1.7M | —Held | Q1 2026 | |
| 10 | Avoro Capital Advisors LLC | $42.4M | 1.2M | ▼−14% Reduced · −200K sh | Q1 2026 | |
| 11 | VANGUARD FIDUCIARY TRUST CO | $39.9M | 1.1M | ▲New +1.1M sh | Q1 2026 | |
| 12 | PANAGORA ASSET MANAGEMENT INC | $33.0M | 933K | ▲+0.4% Added · +4K sh | Q1 2026 | |
| 13 | Frazier Life Sciences Management, L.P. | $24.8M | 701K | —Held | Q1 2026 | |
| 14 | PUBLIC SECTOR PENSION INVESTMENT BOARD | $24.0M | 677K | ▲+0.9% Added · +6K sh | Q1 2026 | |
| 15 | Man Group plc | $22.1M | 625K | ▲+100% Added · +313K sh | Q1 2026 | |
| 16 | SEGALL BRYANT & HAMILL, LLC | $20.7M | 586K | ▼−4.8% Reduced · −30K sh | Q1 2026 | |
| 17 | Woodline Partners LP | $19.8M | 559K | —Held | Q1 2026 | |
| 18 | RICE HALL JAMES & ASSOCIATES, LLC | $13.8M | 390K | ▲+2.9% Added · +11K sh | Q1 2026 | |
| 19 | GLENMEDE TRUST CO NA | $13.4M | 378K | ▼−8.4% Reduced · −35K sh | Q1 2026 | |
| 20 | GENDELL JEFFREY L | $12.4M | 351K | ▲New +351K sh | Q1 2026 | |
| 21 | Logos Global Management LP | $12.4M | 350K | ▲New +350K sh | Q1 2026 | |
| 22 | PEREGRINE CAPITAL MANAGEMENT LLC | $8.6M | 244K | ▼−4.1% Reduced · −10K sh | Q1 2026 | |
| 23 | CAPITAL FUND MANAGEMENT S.A. | $8.6M | 243K | ▲+61% Added · +92K sh | Q1 2026 | |
| 24 | Engineers Gate Manager LP | $7.4M | 208K | ▲+337% Added · +161K sh | Q1 2026 | |
| 25 | Rock Springs Capital Management LP | $6.5M | 184K | ▲+32% Added · +45K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 12, 2026 | Wright Christopher I | Director | Sell (S) | 2K | $90K |
| Mar 3, 2026 | Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | Sell (S) | 2K | $61K |
| Mar 2, 2026 | Nichols Christian Todd | SVP, Chief Commercial Officer | Grant (A) | 66K | $0 |
| Mar 2, 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Grant (A) | 39K | $0 |
| Mar 2, 2026 | Parisi Samuel Joseph | VP, Finance (Interim PAO) | Grant (A) | 15K | $0 |
| Mar 2, 2026 | Hopkinson Craig C. | EVP R&D, Chief Medical Officer | Grant (A) | 83K | $0 |
| Mar 2, 2026 | POPS RICHARD F | Director and CEO, Alkermes plc, Director | Grant (A) | 89K | $0 |
| Mar 2, 2026 | Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | Grant (A) | 78K | $0 |
| Mar 2, 2026 | Reed Joshua | SVP, Chief Financial Officer | Grant (A) | 66K | $0 |
| Mar 2, 2026 | Gaffin David Joseph | EVP, CLO, Alkermes, Inc. | Sell (S) | 2K | $60K |
| Mar 2, 2026 | Parisi Samuel Joseph | VP, Finance (Interim PAO) | Sell (S) | 7K | $202K |
| Mar 2, 2026 | Parisi Samuel Joseph | VP, Finance (Interim PAO) | Grant (A) | 14K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| ELI LILLY & COLLY | 120 funds | $14.0B |
| MICROSOFT CORPMSFT | 119 funds | $52.9B |
| ALPHABET INC-CL AGOOGL | 117 funds | $35.9B |
| NVIDIA CORPNVDA | 116 funds | $75.4B |
| APPLE INCAAPL | 116 funds | $61.7B |
| AMAZON.COM INCAMZN | 116 funds | $40.7B |
| META PLATFORMS INC-CLASS AMETA | 116 funds | $23.4B |
| MASTERCARD INC - AMA | 116 funds | $9.8B |
| BROADCOM INCAVGO | 115 funds | $28.8B |
| JPMORGAN CHASE & COJPM | 115 funds | $16.4B |
| VISA INC-CLASS A SHARESV | 114 funds | $10.3B |
| CHEVRON CORPCVX | 114 funds | $6.9B |
Ranked by how many of ALKS's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for ALKS. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.