Carsten Brunn
CIK 1760229 · President and CEO · last filed 2026-01-08
"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.
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Disclosed Exposure
$3.08M
Companies
3
Total Filings
39
Lifetime Open-Market Net
-$836.5K
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 |
|---|---|---|---|---|---|---|---|
| RNAC | President and CEO | 323,530 | $9.51 | $3.08M | -$451.8K | 6 | 2026-01-08 |
| Cartesian Therapeutics, Inc. (SELB) Delisted | President and CEO | 783,081 | $0.88 | $690.1K | -$384.6K | 32 | 2023-09-26 |
| Surface Oncology, Inc. (SURF) Delisted | Director | — | $1.07 | — | $0 | 1 | 2022-06-30 |
Recent Filings · Page 2 of 4
39 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2022-12-05 | Cartesian Therapeutics, Inc. (SELB) Delisted | Exer (M) | +10,938 | $0 | EDGAR |
| 2022-09-30 | Cartesian Therapeutics, Inc. (SELB) Delisted | Sell (S) | −2,692 | -$4.5K | EDGAR |
| 2022-09-06 | Cartesian Therapeutics, Inc. (SELB) Delisted | Mixed | +6,169 | -$8.8K | EDGAR |
| 2022-06-30 | Surface Oncology, Inc. (SURF) Delisted | Grant (A) | — | $0 | EDGAR |
| 2022-06-03 | Cartesian Therapeutics, Inc. (SELB) Delisted | Exer (M) | +10,938 | $0 | EDGAR |
| 2022-03-03 | Cartesian Therapeutics, Inc. (SELB) Delisted | Mixed | +5,494 | -$9.9K | EDGAR |
| 2022-01-07 | Cartesian Therapeutics, Inc. (SELB) Delisted | Sell (S) | −13,597 | -$42.0K | EDGAR |
| 2022-01-05 | Cartesian Therapeutics, Inc. (SELB) Delisted | Grant (A) | +226,300 | $0 | EDGAR |
| 2021-12-14 | Cartesian Therapeutics, Inc. (SELB) Delisted | Sell (S) | −17,196 | -$51.4K | EDGAR |
| 2021-12-10 | Cartesian Therapeutics, Inc. (SELB) Delisted | Grant (A) | +37,500 | $0 | EDGAR |
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.