Brunn Carsten — SEC Form 4 filings
SEC reporting owner CIK 1760229. 4 Form 4 filings on record with FilingPulse; latest filed 2026-01-08.
Transaction summary — filings shown
Covers all 4 filings on record, filed 2025-01-06 to 2026-01-08. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 3 legs across 2 filings — 41,037 shares, $451,841 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 4.
- Largest priced transaction: sale of 23,766 shares @ $6.82 ($162,077) in Cartesian Therapeutics, Inc., filed 2026-01-08.
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 |
|---|---|---|---|---|---|
| Cartesian Therapeutics, Inc. (RNAC) | President and CEO, Director | 4 | — | 3 legs · 41,037 sh · $451,841 | 4 |
Form 4 filings — Brunn Carsten
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-01-08 | 4 | Cartesian Therapeutics, Inc. (RNAC) | Sale (S): 23,766 @ $6.82 | EDGAR |
| 2026-01-06 | 4 | Cartesian Therapeutics, Inc. (RNAC) | Grant/award (A): 143,200 @ $0 · Grant/award (A): 415,700 (derivative) @ $0 | EDGAR |
| 2025-01-07 | 4 | Cartesian Therapeutics, Inc. (RNAC) | Sale (S): 8,563 @ $16.72 · Sale (S): 8,708 @ $16.83 | EDGAR |
| 2025-01-06 | 4 | Cartesian Therapeutics, Inc. (RNAC) | Grant/award (A): 57,500 @ $0 · Grant/award (A): 169,100 (derivative) @ $0 | 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.
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