Mason Mark — SEC Form 4 filings
SEC reporting owner CIK 1487290. 22 Form 4 filings on record with FilingPulse; latest filed 2026-09-11.
Transaction summary — filings shown
Covers all 22 filings on record, filed 2024-01-23 to 2026-09-11. 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 — 62,092 shares, $5,280,836 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 23.
- Largest priced transaction: sale of 58,465 shares @ $83.21 ($4,864,791) in CITIGROUP INC, filed 2025-02-18.
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 |
|---|---|---|---|---|---|
| CITIGROUP INC (C) | Chief Financial Officer | 9 | — | 3 legs · 62,092 sh · $5,280,836 | 10 |
| MICROSOFT CORP (MSFT) | Director | 13 | — | — | 13 |
Form 4 filings — Mason Mark
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-11 | 4 | MICROSOFT CORP (MSFT) | Grant/award (A): 0.79 (derivative) @ $0 | EDGAR |
| 2026-09-08 | 4 | MICROSOFT CORP (MSFT) | Grant/award (A): 195.12 (derivative) @ $0 | EDGAR |
| 2026-06-12 | 4 | MICROSOFT CORP (MSFT) | Grant/award (A): 0.54 (derivative) @ $0 | EDGAR |
| 2026-06-09 | 4 | MICROSOFT CORP (MSFT) | Grant/award (A): 231.26 (derivative) @ $0 | EDGAR |
| 2026-02-24 | 4 | CITIGROUP INC (C) | Sale (S): 1,627 @ $114.40 · Sale (S): 2,000 @ $114.96 · Grant/award (A): 39,347.48 (derivative) @ $0 | EDGAR |
| 2026-02-13 | 4 | CITIGROUP INC (C) | Grant/award (A): 52,367.39 @ $0 | EDGAR |
| 2026-02-03 | 4 | MICROSOFT CORP (MSFT) | Grant/award (A): 145 @ $0 | EDGAR |
| 2026-01-20 | 4 | CITIGROUP INC (C) | Tax withholding (F): 29,209.72 @ $118.04 | EDGAR |
| 2025-12-05 | 4 | MICROSOFT CORP (MSFT) | Grant/award (A): 130 @ $0 | EDGAR |
| 2025-09-12 | 4 | MICROSOFT CORP (MSFT) | Grant/award (A): 125 @ $0 | EDGAR |
| 2025-06-11 | 4 | MICROSOFT CORP (MSFT) | Grant/award (A): 132 @ $0 | EDGAR |
| 2025-02-24 | 4 | CITIGROUP INC (C) | Grant/award (A): 34,760.90 (derivative) @ $0 | EDGAR |
| 2025-02-18 | 4 | CITIGROUP INC (C) | Grant/award (A): 51,871.50 @ $0 · Sale (S): 58,465 @ $83.21 · Gift (G): 3,073 @ $0 | EDGAR |
| 2025-02-03 | 4 | MICROSOFT CORP (MSFT) | Grant/award (A): 151 @ $0 | EDGAR |
| 2025-01-22 | 4 | CITIGROUP INC (C) | Tax withholding (F): 28,711.24 @ $79.99 | EDGAR |
| 2024-12-10 | 4 | MICROSOFT CORP (MSFT) | Grant/award (A): 132 @ $0 | EDGAR |
| 2024-09-09 | 4 | MICROSOFT CORP (MSFT) | Grant/award (A): 146 @ $0 | EDGAR |
| 2024-06-07 | 4 | MICROSOFT CORP (MSFT) | Grant/award (A): 138 @ $0 | EDGAR |
| 2024-02-27 | 4 | CITIGROUP INC (C) | Grant/award (A): 50,177.56 (derivative) @ $0 | EDGAR |
| 2024-02-20 | 4 | CITIGROUP INC (C) | Grant/award (A): 68,742.10 @ $0 | EDGAR |
| 2024-02-01 | 4 | MICROSOFT CORP (MSFT) | Grant/award (A): 147 @ $0 | EDGAR |
| 2024-01-23 | 4 | CITIGROUP INC (C) | Tax withholding (F): 24,229.54 @ $51.52 | 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.
Need this as JSON?
GET https://api.filingpulse.io/v1/insider-trades?owner_cik=1487290 returns every filing on this page — normalized, with footnotes and derivative legs — and webhooks push new filings to you in seconds. API docs →