Seraphin Luc
Director · Officer · RMBS
As of 2026-09-16, Seraphin Luc has 24 Form 4 transactions on record across 1 company — 13 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market sales filed in April in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $28.1M
- Indirect $0
| RMBS | direct | 345,767 sh | $28.1M |
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-04-02 | RMBS | Sale | 2,750 @ $87.11 | $240K | −0.8% of holding | 345,932 | Form 4 |
| 2026-04-02 | RMBS | Sale | 2,511 @ $86.04 | $216K | −0.7% of holding | 348,682 | Form 4 |
| 2026-04-02 | RMBS | Sale | 165 @ $88.35 | $15K | −0.0% of holding | 345,767 | Form 4 |
| 2026-03-02 | RMBS | Sale | 13,654 @ $98.22 | $1.3M | −3.8% of holding | 348,426 | Form 4 |
| 2026-03-02 | RMBS | Sale | 9,469 @ $99.17 | $939K | −2.7% of holding | 338,957 | Form 4 |
| 2026-03-02 | RMBS | Sale | 7,225 @ $97.38 | $704K | −2.0% of holding | 362,080 | Form 4 |
| 2026-03-02 | RMBS | Sale | 6,587 @ $100.20 | $660K | −1.9% of holding | 332,370 | Form 4 |
| 2026-03-02 | RMBS | Sale | 1,679 @ $95.83 | $161K | −0.5% of holding | 369,305 | Form 4 |
| 2026-03-02 | RMBS | Sale | 1,300 @ $101.65 | $132K | −0.4% of holding | 331,070 | Form 4 |
| 2025-04-23 | RMBS | Sale | 6,348 @ $46.97 | $298K | −1.9% of holding | 319,241 | Form 4 |
| 2025-04-22 | RMBS | Sale | 1,255 @ $45.00 | $56K | −0.4% of holding | 325,589 | Form 4 |
| 2025-04-15 | RMBS | Sale | 10,000 @ $47.79 | $478K | −3.0% of holding | 326,844 | Form 4 |
| 2025-04-08 | RMBS | Sale | 10,000 @ $46.81 | $468K | −2.9% of holding | 336,844 | Form 4 |
| 2025-04-01 | RMBS | Sale | 10,000 @ $50.88 | $509K | −2.8% of holding | 346,844 | Form 4 |
| 2025-03-25 | RMBS | Sale | 10,000 @ $58.64 | $586K | −3.2% of holding | 306,931 | Form 4 |
| 2025-03-18 | RMBS | Sale | 10,000 @ $53.79 | $538K | −3.1% of holding | 316,931 | Form 4 |
8 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-04-01 | RMBS | Withheld for tax | 12,561 | 351,193 | Form 4 |
| 2026-04-01 | RMBS | Award / grant | 32,684 | 363,754 | Form 4 |
| 2026-02-01 | RMBS | Withheld for tax | 92,523 | 370,984 | Form 4 |
| 2026-02-01 | RMBS | Award / grant | 143,744 | 463,507 | Form 4 |
| 2025-04-01 | RMBS | Withheld for tax | 5,164 | 356,844 | Form 4 |
| 2025-04-01 | RMBS | Award / grant | 55,077 | 362,008 | Form 4 |
| 2025-02-01 | RMBS | Withheld for tax | 127,869 | 326,931 | Form 4 |
| 2025-02-01 | RMBS | Award / grant | 191,548 | 454,800 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.