Seraphin Luc — SEC Form 4 filings
SEC reporting owner CIK 1341984. 19 Form 4 filings on record with FilingPulse; latest filed 2026-04-03.
Transaction summary — filings shown
Covers all 19 filings on record, filed 2024-02-02 to 2026-04-03. 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): 30 legs across 15 filings — 198,473 shares, $13,172,856 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 12.
- Largest priced transaction: sale of 13,654 shares @ $98.22 ($1,341,071) in RAMBUS INC, filed 2026-03-03.
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 |
|---|---|---|---|---|---|
| RAMBUS INC (RMBS) | President and CEO, Director | 19 | — | 30 legs · 198,473 sh · $13,172,856 | 12 |
Form 4 filings — Seraphin Luc
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-04-03 | 4 | RAMBUS INC (RMBS) | Grant/award (A): 32,684 @ $0 · Tax withholding (F): 12,561 @ $89.95 · Sale (S): 2,511 @ $86.04 · Sale (S): 2,750 @ $87.11 · Sale (S): 165 @ $88.35 | EDGAR |
| 2026-03-03 | 4 | RAMBUS INC (RMBS) | Sale (S): 1,679 @ $95.83 · Sale (S): 7,225 @ $97.38 · Sale (S): 13,654 @ $98.22 · Sale (S): 9,469 @ $99.17 · Sale (S): 6,587 @ $100.20 · Sale (S): 1,300 @ $101.65 | EDGAR |
| 2026-02-03 | 4 | RAMBUS INC (RMBS) | Grant/award (A): 143,744 @ $0 · Tax withholding (F): 92,523 @ $113.71 | EDGAR |
| 2025-04-24 | 4 | RAMBUS INC (RMBS) | Sale (S): 1,255 @ $45 · Sale (S): 6,348 @ $46.97 | EDGAR |
| 2025-04-16 | 4 | RAMBUS INC (RMBS) | Sale (S): 10,000 @ $47.79 | EDGAR |
| 2025-04-08 | 4 | RAMBUS INC (RMBS) | Sale (S): 10,000 @ $46.81 | EDGAR |
| 2025-04-03 | 4 | RAMBUS INC (RMBS) | Grant/award (A): 55,077 @ $0 · Tax withholding (F): 5,164 @ $52.29 · Sale (S): 10,000 @ $50.88 | EDGAR |
| 2025-03-26 | 4 | RAMBUS INC (RMBS) | Sale (S): 10,000 @ $58.64 | EDGAR |
| 2025-03-19 | 4 | RAMBUS INC (RMBS) | Sale (S): 10,000 @ $53.79 | EDGAR |
| 2025-02-04 | 4 | RAMBUS INC (RMBS) | Grant/award (A): 191,548 @ $0 · Tax withholding (F): 127,869 @ $60.35 | EDGAR |
| 2024-04-16 | 4 | RAMBUS INC (RMBS) | Sale (S): 5,000 @ $58.66 · Sale (S): 530 @ $58.66 | EDGAR |
| 2024-04-10 | 4 | RAMBUS INC (RMBS) | Sale (S): 5,000 @ $61.35 · Sale (S): 10,000 @ $61.35 | EDGAR |
| 2024-04-02 | 4 | RAMBUS INC (RMBS) | Grant/award (A): 38,566 @ $0 · Sale (S): 5,000 @ $59.93 · Sale (S): 10,000 @ $59.94 | EDGAR |
| 2024-03-27 | 4 | RAMBUS INC (RMBS) | Sale (S): 5,000 @ $62.69 · Sale (S): 10,000 @ $62.69 | EDGAR |
| 2024-03-20 | 4 | RAMBUS INC (RMBS) | Sale (S): 5,000 @ $58.35 · Sale (S): 10,000 @ $58.36 | EDGAR |
| 2024-03-13 | 4 | RAMBUS INC (RMBS) | Sale (S): 5,000 @ $62.68 · Sale (S): 10,000 @ $62.69 | EDGAR |
| 2024-03-06 | 4 | RAMBUS INC (RMBS) | Sale (S): 5,000 @ $62.17 · Sale (S): 10,000 @ $62.17 | EDGAR |
| 2024-02-06 | 4 | RAMBUS INC (RMBS) | Tax withholding (F): 13,363 @ $68.37 | EDGAR |
| 2024-02-02 | 4 | RAMBUS INC (RMBS) | Grant/award (A): 221,310 @ $0 · Tax withholding (F): 143,524 @ $68.15 | 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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