Margaret A Horn
CIK 1294192 · Chief Operating Officer · last filed 2026-03-19
"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
$17.01M
Companies
4
Total Filings
45
Lifetime Open-Market Net
-$20.39M
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 |
|---|---|---|---|---|---|---|---|
| RVMDW | Chief Operating Officer | 157,570 | $5.94 | $936.0K | -$13.15M | 17 | 2026-03-19 |
| SANGAMO THERAPEUTICS, INC (SGMO) Delisted | Director | 82,650 | $0.18 | $14.7K | $0 | 4 | 2025-06-16 |
| RVMD | Chief Operating Officer | 104,460 | $153.87 | $16.07M | -$7.24M | 23 | 2023-10-25 |
| KOSAN BIOSCIENCES INC (KOSN) Delisted | SVP, General Counsel | — | — | — | $0 | 1 | 2007-01-04 |
Recent Filings · Page 5 of 5
45 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2021-03-08 | RVMD | Grant (A) | +15,000 | $0 | EDGAR |
| 2021-02-08 | RVMD | Mixed | — | -$1.76M | EDGAR |
| 2020-10-02 | RVMD | Sell (S) | −70,000 | -$2.46M | EDGAR |
| 2020-02-14 | RVMD | Grant (A) | — | $0 | EDGAR |
| 2007-01-04 | KOSAN BIOSCIENCES INC (KOSN) Delisted | Grant (A) | — | $0 | EDGAR |
Showing 41–45 of 45
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Page 5 of 5
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.