Mason Michael — SEC Form 4 filings
SEC reporting owner CIK 1514291. 6 Form 4 filings on record with FilingPulse; latest filed 2024-09-05.
Transaction summary — filings shown
Covers all 6 filings on record, filed 2024-01-25 to 2024-09-05. 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): 6 legs across 5 filings — 48,301 shares, $55,563 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 2.
- Largest priced transaction: sale of 27,687 shares @ $1.17 ($32,394) in Karyopharm Therapeutics Inc., filed 2024-03-04.
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 |
|---|---|---|---|---|---|
| Karyopharm Therapeutics Inc. (KPTI) | EVP, CFO & Treasurer | 6 | — | 6 legs · 48,301 sh · $55,563 | 2 |
Form 4 filings — Mason Michael
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2024-09-05 | 4 | Karyopharm Therapeutics Inc. (KPTI) | Sale (S): 7,050 @ $0.72 | EDGAR |
| 2024-06-06 | 4 | Karyopharm Therapeutics Inc. (KPTI) | Sale (S): 652 @ $0.99 | EDGAR |
| 2024-03-04 | 4 | Karyopharm Therapeutics Inc. (KPTI) | Sale (S): 27,687 @ $1.17 · Sale (S): 6,162 @ $1.20 | EDGAR |
| 2024-02-29 | 4 | Karyopharm Therapeutics Inc. (KPTI) | Sale (S): 2,545 @ $1.32 · Grant/award (A): 188,205 @ $0 | EDGAR |
| 2024-02-08 | 4 | Karyopharm Therapeutics Inc. (KPTI) | Sale (S): 4,205 @ $1.59 | EDGAR |
| 2024-01-25 | 4 | Karyopharm Therapeutics Inc. (KPTI) | Grant/award (A): 13,333 @ $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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