7 tracked 13F filers disclose a position in NAMSW as of the latest SEC 13F filings, a combined $25.8M in reported value. 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.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Frazier Life Sciences Management, L.P. | $10.0M | 500K | —Held | Q1 2026 | |
| 2 | RA CAPITAL MANAGEMENT, L.P. | $6.7M | 333K | —Held | Q1 2026 | |
| 3 | Affinity Asset Advisors, LLC | $4.9M | 245K | —Held | Q1 2026 | |
| 4 | Bain Capital Life Sciences Investors, LLC | $2.0M | 100K | —Held | Q1 2026 | |
| 5 | DEERFIELD MANAGEMENT COMPANY, L.P. | $1.9M | 93K | —Held | Q1 2026 | |
| 6 | ARISTEIA CAPITAL, L.L.C. | $343K | 16K | —Held | Q1 2026 | |
| 7 | UBS Group AG | $8K | 396 | —Held | 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.
| Company | Co-held by | Combined value |
|---|---|---|
| NEWAMSTERDAM PHARMA CO NVNAMS | 5 funds | $1.2B |
| DIANTHUS THERAPEUTICS INCDNTH | 4 funds | $364.5M |
| DISC MEDICINE INCIRON | 4 funds | $294.3M |
| SAVARA INCSVRA | 4 funds | $237.0M |
| ASCENDIS PHARMA A/SASNDUSD | 3 funds | $2.4B |
| NUVALENT INC-ANUVL | 3 funds | $2.1B |
| TYRA BIOSCIENCES INCTYRA | 3 funds | $498.1M |
| PRAXIS PRECISION MEDICINES IPRAX | 3 funds | $485.6M |
| BIOCRYST PHARMACEUTICALS INCBCRX | 3 funds | $332.0M |
| REVOLUTION MEDICINES INCRVMD | 3 funds | $298.8M |
| SPYGLASS PHARMA INCSGP | 3 funds | $228.6M |
| TAYSHA GENE THERAPIES INCTSHA | 3 funds | $121.9M |
Ranked by how many of NAMSW's institutional holders also hold each name, a cross-fund conviction signal.
No open-market insider transactions on file yet. Grants, gifts, and exercises live on the full insider page.
| Class | 13F holders | Value held |
|---|---|---|
| NAMScs | 148 funds | $3.3B |
| NAMSWthis pageW EXP 99/99/999 | 7 funds | $25.8M |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
No filings captured for this ticker in the live stream yet.
Connected entities for NAMSW
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/NAMSW/capital-change-brief"
Use Arkolith's capital_change_brief for NAMSW. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for NAMSW. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.