RA Capital Nexus Fund, L.P.
CIK 1780117 · last filed 2026-07-23
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Loading insider history…
Disclosed Exposure
$317.65M
Companies
8
Total Filings
34
Lifetime Open-Market Net
$1.33B
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ARTV | Director | 68,320 | $10.53 | $719.4K | $689.00M | 5 | 2026-07-23 |
| CLYM | Director | — | $12.29 | — | $0 | 1 | 2026-07-01 |
| TYRA | Director | 8,477,275 | $30.88 | $261.78M | $100.00M | 4 | 2026-06-01 |
| 89bio, Inc. (ETNB) Delisted | Director | 335,364 | $14.84 | $4.98M | $300.00M | 3 | 2025-02-03 |
| VOR | Director | 1,891,036 | $20.00 | $37.82M | $0 | 1 | 2024-12-30 |
| Jade Biosciences, Inc. (AVTE) Delisted | Director | 225,534 | $93.80 | $21.16M | $7.75M | 3 | 2024-06-20 |
| NKTX | Director | 7,805,129 | $2.22 | $17.33M | $165.00M | 1 | 2022-04-28 |
| Akouos, Inc. (AKUS) Delisted | 10%+ Owner | 1,456,249 | $13.29 | $19.35M | $70.12M | 1 | 2020-07-02 |
Recent Filings · Page 2 of 4
34 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2025-10-28 | SION | Notice (144) | −31,392 | -$1.24M | EDGAR |
| 2025-10-24 | SION | Notice (144) | −122,271 | -$4.79M | EDGAR |
| 2025-10-20 | VOR | Notice (144) | −15,104 | -$444.5K | EDGAR |
| 2025-10-17 | VOR | Notice (144) | −42,816 | -$1.24M | EDGAR |
| 2025-10-16 | VOR | Notice (144) | −24,916 | -$724.1K | EDGAR |
| 2025-10-15 | VOR | Notice (144) | −8,430 | -$254.8K | EDGAR |
| 2025-06-26 | ARTV | Grant (A) | — | $0 | EDGAR |
| 2025-02-03 | 89bio, Inc. (ETNB) Delisted | Buy (P) | +28,571,425 | $250.00M | EDGAR |
| 2024-12-30 | VOR | Grant (A) | +84,485,795 | $0 | EDGAR |
| 2024-07-24 | ARTV | Mixed | +59,119,812 | $628.26M | EDGAR |
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.