Luc Seraphin
CIK: 0001341984
Transaction Breakdown
High conviction signal
Position reduction
Derivative conversions
Compensation grants
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
RAMBUS INC
Discretionary Trading P&L
Holdings
Transaction History (24 total)
- Apr 2, 2026RMBS
RAMBUS INC
Sale(S)Direct165 shares at avg. $88.35$15K - Apr 2, 2026RMBS
RAMBUS INC
Sale(S)Direct2.8K shares at avg. $87.11$240K - Apr 2, 2026RMBS
RAMBUS INC
Sale(S)Direct2.5K shares at avg. $86.04$216K - Apr 1, 2026RMBS
RAMBUS INC
Tax Payment(F)Direct12.6K shares at avg. $89.95$1.1M - Apr 1, 2026RMBS
RAMBUS INC
Award(A)Direct32.7K shares- - Mar 2, 2026RMBS
RAMBUS INC
Sale(S)Direct7.2K shares at avg. $97.38$704K - Mar 2, 2026RMBS
RAMBUS INC
Sale(S)Direct9.5K shares at avg. $99.17$939K - Mar 2, 2026RMBS
RAMBUS INC
Sale(S)Direct13.7K shares at avg. $98.22$1.3M - Mar 2, 2026RMBS
RAMBUS INC
Sale(S)Direct1.7K shares at avg. $95.83$161K - Mar 2, 2026RMBS
RAMBUS INC
Sale(S)Direct1.3K shares at avg. $101.65$132K - Mar 2, 2026RMBS
RAMBUS INC
Sale(S)Direct6.6K shares at avg. $100.20$660K - Feb 1, 2026RMBS
RAMBUS INC
Award(A)Direct143.7K shares- - Feb 1, 2026RMBS
RAMBUS INC
Tax Payment(F)Direct92.5K shares at avg. $113.71$10.5M - Apr 23, 2025RMBS
RAMBUS INC
Sale(S)Direct6.3K shares at avg. $46.97$298K - Apr 22, 2025RMBS
RAMBUS INC
Sale(S)Direct1.3K shares at avg. $45.00$56K - Apr 15, 2025RMBS
RAMBUS INC
Sale(S)Direct10K shares at avg. $47.79$478K - Apr 8, 2025RMBS
RAMBUS INC
Sale(S)Direct10K shares at avg. $46.81$468K - Apr 1, 2025RMBS
RAMBUS INC
Award(A)Direct55.1K shares- - Apr 1, 2025RMBS
RAMBUS INC
Sale(S)Direct10K shares at avg. $50.88$509K - Apr 1, 2025RMBS
RAMBUS INC
Tax Payment(F)Direct5.2K shares at avg. $52.29$270K - Mar 25, 2025RMBS
RAMBUS INC
Sale(S)Direct10K shares at avg. $58.64$586K - Mar 18, 2025RMBS
RAMBUS INC
Sale(S)Direct10K shares at avg. $53.79$538K - Feb 1, 2025RMBS
RAMBUS INC
Tax Payment(F)Direct127.9K shares at avg. $60.35$7.7M - Feb 1, 2025RMBS
RAMBUS INC
Award(A)Direct191.5K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Apr 2, 2026 | RMBS RAMBUS INC | Sale(S) | 165 | $88.35 | $14,578 | Direct |
| Apr 2, 2026 | RMBS RAMBUS INC | Sale(S) | 2,750 | $87.11 | $239,565 | Direct |
| Apr 2, 2026 | RMBS RAMBUS INC | Sale(S) | 2,511 | $86.04 | $216,045 | Direct |
| Apr 1, 2026 | RMBS RAMBUS INC | Tax Payment(F) | 12,561 | $89.95 | $1,129,862 | Direct |
| Apr 1, 2026 | RMBS RAMBUS INC | Award(A) | 32,684 | - | $0 | Direct |
| Mar 2, 2026 | RMBS RAMBUS INC | Sale(S) | 7,225 | $97.38 | $703,569 | Direct |
| Mar 2, 2026 | RMBS RAMBUS INC | Sale(S) | 9,469 | $99.17 | $939,002 | Direct |
| Mar 2, 2026 | RMBS RAMBUS INC | Sale(S) | 13,654 | $98.22 | $1,341,071 | Direct |
| Mar 2, 2026 | RMBS RAMBUS INC | Sale(S) | 1,679 | $95.83 | $160,901 | Direct |
| Mar 2, 2026 | RMBS RAMBUS INC | Sale(S) | 1,300 | $101.65 | $132,150 | Direct |
| Mar 2, 2026 | RMBS RAMBUS INC | Sale(S) | 6,587 | $100.20 | $660,004 | Direct |
| Feb 1, 2026 | RMBS RAMBUS INC | Award(A) | 143,744 | - | $0 | Direct |
| Feb 1, 2026 | RMBS RAMBUS INC | Tax Payment(F) | 92,523 | $113.71 | $10,520,790 | Direct |
| Apr 23, 2025 | RMBS RAMBUS INC | Sale(S) | 6,348 | $46.97 | $298,166 | Direct |
| Apr 22, 2025 | RMBS RAMBUS INC | Sale(S) | 1,255 | $45.00 | $56,475 | Direct |
| Apr 15, 2025 | RMBS RAMBUS INC | Sale(S) | 10,000 | $47.79 | $477,868 | Direct |
| Apr 8, 2025 | RMBS RAMBUS INC | Sale(S) | 10,000 | $46.81 | $468,100 | Direct |
| Apr 1, 2025 | RMBS RAMBUS INC | Award(A) | 55,077 | - | - | Direct |
| Apr 1, 2025 | RMBS RAMBUS INC | Sale(S) | 10,000 | $50.88 | $508,815 | Direct |
| Apr 1, 2025 | RMBS RAMBUS INC | Tax Payment(F) | 5,164 | $52.29 | $270,026 | Direct |
| Mar 25, 2025 | RMBS RAMBUS INC | Sale(S) | 10,000 | $58.64 | $586,406 | Direct |
| Mar 18, 2025 | RMBS RAMBUS INC | Sale(S) | 10,000 | $53.79 | $537,888 | Direct |
| Feb 1, 2025 | RMBS RAMBUS INC | Tax Payment(F) | 127,869 | $60.35 | $7,716,894 | Direct |
| Feb 1, 2025 | RMBS RAMBUS INC | Award(A) | 191,548 | - | - | Direct |
1-24 of 24 transactions
About Seraphin Luc
Seraphin Luc (SEC CIK 0001341984) files insider reports with the SEC as President and CEO of RAMBUS INC (RMBS).
Signal8 holds 10 ownership filings by Seraphin Luc, all Form 4s, filed between Feb 4, 2025 and Apr 3, 2026. Those filings report 24 transactions, from Feb 1, 2025 to Apr 2, 2026. Signal8's Form 4 history starts in Sep 2024.
The business address on Seraphin Luc's filings is in SAN JOSE, CA.
Recent filings by Seraphin Luc
- Apr 2, 2026: Open-market sales of RMBS shares (3 lines, Form 4, code S).
- Apr 1, 2026: Tax withholding of RMBS shares (Form 4, code F).
- Apr 1, 2026: Grant or award of RMBS shares (Form 4, code A).
- Mar 2, 2026: Open-market sales of RMBS shares (6 lines, Form 4, code S).
- Feb 1, 2026: Grant or award of RMBS shares (Form 4, code A).
Other insiders filing for RAMBUS INC (RMBS)
- KISSNER CHARLES, Director
- Taulbee William Clarence II, Chief Accounting Officer
- Sayiner Necip, Director
- Higashi Emiko, Director
- STANG ERIC B, Director
- FAN XIANZHI SEAN, EVP, COO