ARCH Venture Partners XIII, L.P. — SEC Form 4 filings
SEC reporting owner CIK 2016083. 5 Form 4 filings on record with FilingPulse; latest filed 2026-06-24.
Transaction summary — filings shown
Covers all 5 filings on record, filed 2025-02-03 to 2026-06-24. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 4 legs across 3 filings — 3,960,312 shares, $72,499,981 total (shares × price as filed).
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 13.
- Largest priced transaction: purchase of 1,432,224 shares @ $18.00 ($25,780,032) in Metsera, Inc., filed 2025-02-03.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Metsera, Inc. (MTSR) | Director, 10% owner | 2 | 2 legs · 2,222,222 sh · $39,999,996 | — | 9 |
| Kardigan, Inc. (KARD) | Director, 10% owner | 2 | 1 leg · 1,250,000 sh · $20,000,000 | — | 4 |
| Lyell Immunopharma, Inc. (LYEL) | 10% owner | 1 | 1 leg · 488,090 sh · $12,499,985 | — | — |
Form 4 filings — ARCH Venture Partners XIII, L.P.
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-24 | 4 | Kardigan, Inc. (KARD) jointly with ARCH Venture Partners XIII, LLC, ARCH Venture Fund XIII, L.P., CRANDELL KEITH, NELSEN ROBERT, Burow Kristina, GILLIS STEVEN | Purchase (P): 1,250,000 @ $16 | EDGAR |
| 2026-06-22 | 4 | Kardigan, Inc. (KARD) jointly with ARCH Venture Partners XIII, LLC, ARCH Venture Fund XIII, L.P., CRANDELL KEITH, NELSEN ROBERT, Burow Kristina, GILLIS STEVEN | Conversion (C): 13,792,035 · Conversion (C): 5,148,587 (derivative) · Conversion (C): 1,204,000 (derivative) · Conversion (C): 2,306,401 (derivative) | EDGAR |
| 2026-03-09 | 4 | Lyell Immunopharma, Inc. (LYEL) jointly with ARCH Venture Fund XIII, L.P., ARCH Venture Partners XIII, LLC, CRANDELL KEITH, NELSEN ROBERT, Burow Kristina, GILLIS STEVEN, BERNS PAUL L, BYBEE CLINTON | Purchase (P): 488,090 @ $25.61 | EDGAR |
| 2025-11-14 | 4 | Metsera, Inc. (MTSR) jointly with ARCH Venture Partners XII, LLC, ARCH Venture Fund XII, L.P., ARCH Venture Partners XII, L.P., ARCH Venture Fund XIII, L.P., ARCH Venture Partners XIII, LLC, CRANDELL KEITH, GILLIS STEVEN, NELSEN ROBERT | Disposition to issuer (D): 18,503,128 · Disposition to issuer (D): 8,313,680 | EDGAR |
| 2025-02-03 | 4 | Metsera, Inc. (MTSR) jointly with ARCH Venture Partners XII, LLC, ARCH Venture Fund XII, L.P., ARCH Venture Partners XII, L.P., ARCH Venture Fund XIII, L.P., ARCH Venture Partners XIII, LLC, CRANDELL KEITH, GILLIS STEVEN, NELSEN ROBERT | Conversion (C): 16,006,949 · Conversion (C): 7,523,682 · Purchase (P): 1,432,224 @ $18 · Purchase (P): 789,998 @ $18 · Conversion (C): 19,933,333 (derivative) · Conversion (C): 15,000,000 (derivative) · +3 more | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
Need this as JSON?
GET https://api.filingpulse.io/v1/insider-trades?owner_cik=2016083 returns every filing on this page — normalized, with footnotes and derivative legs — and webhooks push new filings to you in seconds. API docs →