ARTHUR A LEVIN
CIK 1181556 · Chief Scientific Officer · last filed 2026-06-05
"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
$1.15M
Companies
4
Total Filings
51
Lifetime Open-Market Net
-$18.21M
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 |
|---|---|---|---|---|---|---|---|
| STOK | Director | 22,216 | $29.82 | $662.5K | -$782.1K | 15 | 2026-06-05 |
| Avidity Biosciences, Inc. (RNAM) Delisted | Director | 0 | — | — | $0 | 1 | 2026-02-27 |
| RNA | Director | 39,062 | $12.37 | $483.2K | -$17.37M | 33 | 2026-01-23 |
| IONIS PHARMACEUTICALS INC (ISIS) Delisted | Vice President | 1,674 | — | — | -$60.7K | 2 | 2007-04-27 |
Recent Filings · Page 4 of 6
51 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2023-03-17 | RNA | Mixed | — | -$2.1K | EDGAR |
| 2023-02-15 | RNA | Mixed | — | -$224.2K | EDGAR |
| 2023-01-24 | RNA | Grant (A) | +18,000 | $0 | EDGAR |
| 2023-01-17 | RNA | Mixed | — | -$207.6K | EDGAR |
| 2023-01-03 | RNA | Mixed | — | -$831.0K | EDGAR |
| 2022-08-31 | RNA | Mixed | — | -$1.70M | EDGAR |
| 2022-06-08 | STOK | Grant (A) | — | $0 | EDGAR |
| 2022-03-15 | RNA | Grant (A) | — | $0 | EDGAR |
| 2021-11-22 | RNA | Mixed | — | -$666.6K | EDGAR |
| 2021-06-28 | RNA | Mixed | — | -$545.2K | 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.