SLESSOR MIKE — SEC Form 4 filings
SEC reporting owner CIK 1590177. 56 Form 4 filings on record with FilingPulse; latest filed 2026-09-17.
Transaction summary — filings shown
Covers the 50 most recent of 56 filings on record, filed 2024-05-08 to 2026-09-17. 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): 78 legs across 26 filings — 214,526 shares, $17,092,597 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 93.
- Largest priced transaction: sale of 39,606 shares @ $65.00 ($2,574,390) in FORMFACTOR INC, filed 2026-01-06.
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 |
|---|---|---|---|---|---|
| FORMFACTOR INC (FORM) | CEO, Director | 48 | — | 78 legs · 214,526 sh · $17,092,597 | 91 |
| BENCHMARK ELECTRONICS INC (BHE) | Director | 2 | — | — | 2 |
Form 4 filings — SLESSOR MIKE
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-17 | 4 | FORMFACTOR INC (FORM) | Sale (S): 8,737 @ $104.26 · Sale (S): 7,773 @ $105.12 · Sale (S): 1,000 @ $105.80 | EDGAR |
| 2026-08-17 | 4 | FORMFACTOR INC (FORM) | Sale (S): 2,482 @ $128.72 · Sale (S): 2,892 @ $129.55 · Sale (S): 3,282 @ $130.54 · Sale (S): 1,125 @ $131.65 · Sale (S): 5,535 @ $132.50 · Sale (S): 686 @ $133.33 | EDGAR |
| 2026-08-10 | 4 | FORMFACTOR INC (FORM) | Option exercise (M): 141,792 @ $0 · Tax withholding (F): 78,908 @ $117.39 · Option exercise (M): 5,908 @ $0 · Tax withholding (F): 3,288 @ $117.39 · Grant/award (A): 27,696 (derivative) @ $0 · Grant/award (A): 141,792 (derivative) @ $0 · +2 more | EDGAR |
| 2026-08-07 | 4 | FORMFACTOR INC (FORM) | Option exercise (M): 3,644 @ $0 · Tax withholding (F): 2,028 @ $114.44 · Option exercise (M): 6,031 @ $0 · Tax withholding (F): 3,357 @ $115.21 · Option exercise (M): 3,644 (derivative) @ $0 · Option exercise (M): 6,031 (derivative) @ $0 | EDGAR |
| 2026-07-16 | 4 | FORMFACTOR INC (FORM) | Sale (S): 1,041 @ $116.56 · Sale (S): 1,650 @ $117.39 · Sale (S): 706 @ $118.21 · Sale (S): 170 @ $119.08 · Sale (S): 300 @ $120.58 · Sale (S): 868 @ $121.30 | EDGAR |
| 2026-06-11 | 4 | FORMFACTOR INC (FORM) | Sale (S): 1,399 @ $117.70 · Sale (S): 767 @ $119 · Sale (S): 400 @ $119.46 · Sale (S): 975 @ $121 · Sale (S): 4,220 @ $121.72 · Sale (S): 2,500 @ $122.63 · +1 more | EDGAR |
| 2026-05-28 | 4 | BENCHMARK ELECTRONICS INC (BHE) | Grant/award (A): 2,093 @ $0 | EDGAR |
| 2026-05-14 | 4 | FORMFACTOR INC (FORM) | Sale (S): 700 @ $122.84 · Sale (S): 1,300 @ $123.72 · Sale (S): 2,984 @ $124.71 · Sale (S): 1,388 @ $125.58 · Sale (S): 398 @ $126.59 · Sale (S): 100 @ $127.47 · +6 more | EDGAR |
| 2026-05-08 | 4 | FORMFACTOR INC (FORM) | Option exercise (M): 5,908 @ $0 · Tax withholding (F): 3,288 @ $144.68 · Option exercise (M): 5,908 (derivative) @ $0 | EDGAR |
| 2026-05-07 | 4 | FORMFACTOR INC (FORM) | Option exercise (M): 3,644 @ $0 · Tax withholding (F): 2,028 @ $145 · Option exercise (M): 6,031 @ $0 · Tax withholding (F): 3,357 @ $149.12 · Option exercise (M): 3,644 (derivative) @ $0 · Option exercise (M): 6,031 (derivative) @ $0 | EDGAR |
| 2026-04-15 | 4 | FORMFACTOR INC (FORM) | Sale (S): 1,826 @ $125.24 · Sale (S): 900 @ $126.58 · Sale (S): 2,369 @ $127.65 · Sale (S): 5,432 @ $128.56 · Sale (S): 767 @ $129.22 | EDGAR |
| 2026-03-18 | 4 | FORMFACTOR INC (FORM) | Sale (S): 1,900 @ $94.10 · Sale (S): 5,495 @ $95.21 · Sale (S): 2,832 @ $95.73 | EDGAR |
| 2026-02-18 | 4 | FORMFACTOR INC (FORM) | Sale (S): 834 @ $92.85 · Sale (S): 4,934 @ $93.97 · Sale (S): 2,896 @ $94.79 | EDGAR |
| 2026-02-11 | 4 | FORMFACTOR INC (FORM) | Option exercise (M): 5,908 @ $0 · Tax withholding (F): 3,288 @ $94.88 · Option exercise (M): 5,908 (derivative) @ $0 | EDGAR |
| 2026-02-09 | 4 | FORMFACTOR INC (FORM) | Option exercise (M): 3,644 @ $0 · Tax withholding (F): 2,095 @ $83.87 · Option exercise (M): 6,031 @ $0 · Tax withholding (F): 3,357 @ $90.29 · Option exercise (M): 3,644 (derivative) @ $0 · Option exercise (M): 6,031 (derivative) @ $0 | EDGAR |
| 2026-01-15 | 4 | FORMFACTOR INC (FORM) | Sale (S): 6,976 @ $76.43 · Sale (S): 6,112 @ $77.24 | EDGAR |
| 2026-01-06 | 4 | FORMFACTOR INC (FORM) | Sale (S): 39,606 @ $65 | EDGAR |
| 2025-12-17 | 4 | FORMFACTOR INC (FORM) | Sale (S): 5,606 @ $56.19 · Sale (S): 2,063 @ $56.82 | EDGAR |
| 2025-12-16 | 4 | BENCHMARK ELECTRONICS INC (BHE) | Grant/award (A): 2,256 @ $0 | EDGAR |
| 2025-11-19 | 4 | FORMFACTOR INC (FORM) | Sale (S): 4,739 @ $49.65 · Sale (S): 3,664 @ $50.60 | EDGAR |
| 2025-11-10 | 4 | FORMFACTOR INC (FORM) | Option exercise (M): 5,908 @ $0 · Tax withholding (F): 3,282 @ $52.25 · Option exercise (M): 5,908 (derivative) @ $0 | EDGAR |
| 2025-11-07 | 4 | FORMFACTOR INC (FORM) | Option exercise (M): 3,644 · Tax withholding (F): 2,025 @ $55.36 · Option exercise (M): 6,031 · Tax withholding (F): 3,351 @ $54.22 · Option exercise (M): 3,644 (derivative) @ $0 · Option exercise (M): 6,031 (derivative) @ $0 | EDGAR |
| 2025-11-04 | 4 | FORMFACTOR INC (FORM) | Gift (G): 5,000 @ $0 | EDGAR |
| 2025-08-08 | 4 | FORMFACTOR INC (FORM) | Option exercise (M): 5,908 · Tax withholding (F): 3,282 @ $27.98 · Grant/award (A): 72,372 (derivative) @ $0 · Option exercise (M): 5,908 (derivative) @ $0 | EDGAR |
| 2025-08-06 | 4 | FORMFACTOR INC (FORM) | Option exercise (M): 3,644 · Tax withholding (F): 2,025 @ $29.14 · Option exercise (M): 3,644 (derivative) @ $0 | EDGAR |
| 2025-08-04 | 4 | FORMFACTOR INC (FORM) | Option exercise (M): 49,935 @ $0 · Tax withholding (F): 27,739 @ $28.93 · Option exercise (M): 14,426 @ $0 · Tax withholding (F): 8,014 @ $28.93 · Grant/award (A): 49,935 (derivative) @ $0 · Option exercise (M): 49,935 (derivative) @ $0 · +1 more | EDGAR |
| 2025-07-02 | 4 | FORMFACTOR INC (FORM) | Sale (S): 4,000 @ $34.03 | EDGAR |
| 2025-06-03 | 4 | FORMFACTOR INC (FORM) | Sale (S): 4,000 @ $29.83 | EDGAR |
| 2025-05-08 | 4 | FORMFACTOR INC (FORM) | Option exercise (M): 5,908 · Tax withholding (F): 3,282 @ $29.66 · Option exercise (M): 5,908 (derivative) @ $0 | EDGAR |
| 2025-05-07 | 4 | FORMFACTOR INC (FORM) | Option exercise (M): 3,644 · Tax withholding (F): 2,025 @ $29.81 · Option exercise (M): 3,644 (derivative) @ $0 | EDGAR |
| 2025-05-01 | 4 | FORMFACTOR INC (FORM) | Sale (S): 4,000 @ $31.72 | EDGAR |
| 2025-04-01 | 4 | FORMFACTOR INC (FORM) | Sale (S): 4,000 @ $28.24 | EDGAR |
| 2025-03-04 | 4 | FORMFACTOR INC (FORM) | Sale (S): 4,000 @ $33.05 | EDGAR |
| 2025-02-10 | 4 | FORMFACTOR INC (FORM) | Option exercise (M): 5,908 @ $0 · Tax withholding (F): 3,282 @ $35.84 · Option exercise (M): 5,908 (derivative) @ $0 | EDGAR |
| 2025-02-06 | 4 | FORMFACTOR INC (FORM) | Option exercise (M): 3,644 @ $0 · Tax withholding (F): 2,151 @ $41.12 · Option exercise (M): 3,644 (derivative) @ $0 | EDGAR |
| 2025-02-03 | 4 | FORMFACTOR INC (FORM) | Sale (S): 3,900 @ $38.97 · Sale (S): 100 @ $39.53 | EDGAR |
| 2025-01-02 | 4 | FORMFACTOR INC (FORM) | Sale (S): 3,600 @ $44.38 · Sale (S): 400 @ $45.01 | EDGAR |
| 2024-12-02 | 4 | FORMFACTOR INC (FORM) | Sale (S): 3,899 @ $40.57 · Sale (S): 101 @ $41.17 | EDGAR |
| 2024-11-08 | 4 | FORMFACTOR INC (FORM) | Option exercise (M): 5,908 @ $0 · Tax withholding (F): 3,276 @ $42.40 · Option exercise (M): 5,908 (derivative) @ $0 | EDGAR |
| 2024-11-06 | 4 | FORMFACTOR INC (FORM) | Option exercise (M): 3,644 @ $0 · Tax withholding (F): 2,021 @ $39.23 · Option exercise (M): 3,644 (derivative) @ $0 | EDGAR |
| 2024-11-04 | 4 | FORMFACTOR INC (FORM) | Sale (S): 4,000 @ $38.81 | EDGAR |
| 2024-10-02 | 4 | FORMFACTOR INC (FORM) | Sale (S): 3,000 @ $45.04 · Sale (S): 1,000 @ $46.00 | EDGAR |
| 2024-09-04 | 4 | FORMFACTOR INC (FORM) | Sale (S): 2,812 @ $45.94 · Sale (S): 1,188 @ $47.17 | EDGAR |
| 2024-08-09 | 4 | FORMFACTOR INC (FORM) | Grant/award (A): 43,728 (derivative) @ $0 | EDGAR |
| 2024-08-08 | 4 | FORMFACTOR INC (FORM) | Option exercise (M): 5,908 @ $0 · Tax withholding (F): 3,276 @ $43.11 · Option exercise (M): 5,908 (derivative) @ $0 | EDGAR |
| 2024-08-05 | 4 | FORMFACTOR INC (FORM) | Sale (S): 1,038 @ $48.60 · Sale (S): 1,389 @ $50.28 · Sale (S): 471 @ $51.29 · Sale (S): 8 @ $52.62 · Sale (S): 1,094 @ $53.80 · Option exercise (M): 14,427 @ $0 · +5 more | EDGAR |
| 2024-07-25 | 4 | FORMFACTOR INC (FORM) | Option exercise (M): 88,902 @ $0 · Tax withholding (F): 49,296 @ $60.25 · Grant/award (A): 88,902 (derivative) @ $0 · Option exercise (M): 88,902 (derivative) @ $0 | EDGAR |
| 2024-07-02 | 4 | FORMFACTOR INC (FORM) | Sale (S): 2,323 @ $58.44 · Sale (S): 995 @ $59.24 · Sale (S): 682 @ $60.57 | EDGAR |
| 2024-06-04 | 4 | FORMFACTOR INC (FORM) | Sale (S): 2,770 @ $54.17 · Sale (S): 1,230 @ $54.83 | EDGAR |
| 2024-05-08 | 4 | FORMFACTOR INC (FORM) | Option exercise (M): 5,908 @ $0 · Tax withholding (F): 2,108 @ $56.03 · Option exercise (M): 5,908 (derivative) @ $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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