Luc Seraphin
CIK 1341984 · View on SEC EDGAR ↗
Insider
First SEC filing: July 5, 2018 · Latest: July 5, 2018
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
0 buys (P)
9 sells (S)
Net:
$-4,406,944
+ 41 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
41 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| April 2, 2026 | RMBS | S 10b5-1 | 165 | $88.35 | $14,578 | 345,767 Direct | -0.05% | Disposed | 4.1% (price as of 2026-08-21) |
| April 2, 2026 | RMBS | S 10b5-1 | 2,750 | $87.11 | $239,552 | 345,932 Direct | -0.79% | Disposed | 5.6% (price as of 2026-08-21) |
| April 2, 2026 | RMBS | S 10b5-1 | 2,511 | $86.04 | $216,046 | 348,682 Direct | -0.71% | Disposed | 6.9% (price as of 2026-08-21) |
| March 2, 2026 | RMBS | S 10b5-1 | 1,300 | $101.65 | $132,145 | 331,070 Direct | -0.39% | Disposed | -9.5% (price as of 2026-08-21) |
| March 2, 2026 | RMBS | S 10b5-1 | 6,587 | $100.20 | $660,017 | 332,370 Direct | -1.94% | Disposed | -8.2% (price as of 2026-08-21) |
| March 2, 2026 | RMBS | S 10b5-1 | 9,469 | $99.17 | $939,041 | 338,957 Direct | -2.72% | Disposed | -7.2% (price as of 2026-08-21) |
| March 2, 2026 | RMBS | S 10b5-1 | 13,654 | $98.22 | $1,341,096 | 348,426 Direct | -3.77% | Disposed | -6.3% (price as of 2026-08-21) |
| March 2, 2026 | RMBS | S 10b5-1 | 7,225 | $97.38 | $703,570 | 362,080 Direct | -1.96% | Disposed | -5.5% (price as of 2026-08-21) |
| March 2, 2026 | RMBS | S 10b5-1 | 1,679 | $95.83 | $160,899 | 369,305 Direct | -0.45% | Disposed | -4.0% (price as of 2026-08-21) |
| April 23, 2025 | RMBS | S 10b5-1 | 6,348 | $46.97 | $298,166 | 319,241 Direct | -1.95% | Disposed | 95.9% (price as of 2026-08-21) |
| April 22, 2025 | RMBS | S 10b5-1 | 1,255 | $45.00 | $56,475 | 325,589 Direct | -0.38% | Disposed | 104.4% (price as of 2026-08-21) |
| April 15, 2025 | RMBS | S 10b5-1 | 10,000 | $47.79 | $477,900 | 326,844 Direct | -2.97% | Disposed | 92.5% (price as of 2026-08-21) |
| April 8, 2025 | RMBS | S 10b5-1 | 10,000 | $46.81 | $468,100 | 336,844 Direct | -2.88% | Disposed | 96.5% (price as of 2026-08-21) |
| April 1, 2025 | RMBS | S 10b5-1 | 10,000 | $50.88 | $508,800 | 346,844 Direct | -2.80% | Disposed | 80.8% (price as of 2026-08-21) |
| March 25, 2025 | RMBS | S 10b5-1 | 10,000 | $58.64 | $586,400 | 306,931 Direct | -3.16% | Disposed | 56.9% (price as of 2026-08-21) |
| March 18, 2025 | RMBS | S 10b5-1 | 10,000 | $53.79 | $537,900 | 316,931 Direct | -3.06% | Disposed | 71.0% (price as of 2026-08-21) |
| April 16, 2024 | RMBS | S 10b5-1 | 530 | $58.66 | $31,090 | 262,791 Direct | -0.20% | Disposed | 56.8% (price as of 2026-08-21) |
| April 16, 2024 | RMBS | S 10b5-1 | 5,000 | $58.66 | $293,300 | 263,321 Direct | -1.86% | Disposed | 56.8% (price as of 2026-08-21) |
| April 9, 2024 | RMBS | S 10b5-1 | 10,000 | $61.35 | $613,500 | 268,321 Direct | -3.59% | Disposed | 50.0% (price as of 2026-08-21) |
| April 9, 2024 | RMBS | S 10b5-1 | 5,000 | $61.35 | $306,750 | 278,321 Direct | -1.76% | Disposed | 50.0% (price as of 2026-08-21) |
| April 2, 2024 | RMBS | S 10b5-1 | 10,000 | $59.94 | $599,400 | 283,321 Direct | -3.41% | Disposed | 53.5% (price as of 2026-08-21) |
| April 2, 2024 | RMBS | S 10b5-1 | 5,000 | $59.93 | $299,650 | 293,321 Direct | -1.68% | Disposed | 53.5% (price as of 2026-08-21) |
| March 26, 2024 | RMBS | S 10b5-1 | 10,000 | $62.69 | $626,900 | 259,755 Direct | -3.71% | Disposed | 46.8% (price as of 2026-08-21) |
| March 26, 2024 | RMBS | S 10b5-1 | 5,000 | $62.69 | $313,450 | 269,755 Direct | -1.82% | Disposed | 46.8% (price as of 2026-08-21) |
| March 19, 2024 | RMBS | S 10b5-1 | 10,000 | $58.36 | $583,600 | 274,755 Direct | -3.51% | Disposed | 57.6% (price as of 2026-08-21) |
| March 19, 2024 | RMBS | S 10b5-1 | 5,000 | $58.35 | $291,750 | 284,755 Direct | -1.73% | Disposed | 57.7% (price as of 2026-08-21) |
| March 12, 2024 | RMBS | S 10b5-1 | 10,000 | $62.69 | $626,900 | 289,755 Direct | -3.34% | Disposed | 46.8% (price as of 2026-08-21) |
| March 12, 2024 | RMBS | S 10b5-1 | 5,000 | $62.68 | $313,400 | 299,755 Direct | -1.64% | Disposed | 46.8% (price as of 2026-08-21) |
| March 5, 2024 | RMBS | S 10b5-1 | 10,000 | $62.17 | $621,700 | 304,755 Direct | -3.18% | Disposed | 48.0% (price as of 2026-08-21) |
| March 5, 2024 | RMBS | S 10b5-1 | 5,000 | $62.17 | $310,850 | 314,755 Direct | -1.56% | Disposed | 48.0% (price as of 2026-08-21) |
| May 15, 2023 | RMBS | S 10b5-1 | 82 | $49.33 | $4,045 | 255,332 Direct | -0.03% | Disposed | 86.5% (price as of 2026-08-21) |
| May 15, 2023 | RMBS | S 10b5-1 | 302 | $49.39 | $14,916 | 255,414 Direct | -0.12% | Disposed | 86.3% (price as of 2026-08-21) |
| May 15, 2023 | RMBS | S 10b5-1 | 4,172 | $49.39 | $206,055 | 255,414 Direct | -1.61% | Disposed | 86.3% (price as of 2026-08-21) |
| May 8, 2023 | RMBS | S 10b5-1 | 12,500 | $47.98 | $599,750 | 255,414 Direct | -4.67% | Disposed | 91.7% (price as of 2026-08-21) |
| May 1, 2023 | RMBS | S 10b5-1 | 12,500 | $44.83 | $560,375 | 267,914 Direct | -4.46% | Disposed | 105.2% (price as of 2026-08-21) |
| April 24, 2023 | RMBS | S 10b5-1 | 12,500 | $49.41 | $617,625 | 279,653 Direct | -4.28% | Disposed | 86.2% (price as of 2026-08-21) |
| April 17, 2023 | RMBS | S 10b5-1 | 12,500 | $49.58 | $619,750 | 292,153 Direct | -4.10% | Disposed | 85.6% (price as of 2026-08-21) |
| April 10, 2023 | RMBS | S 10b5-1 | 12,500 | $48.68 | $608,500 | 304,653 Direct | -3.94% | Disposed | 89.0% (price as of 2026-08-21) |
| April 3, 2023 | RMBS | S 10b5-1 | 12,500 | $51.28 | $641,000 | 317,153 Direct | -3.79% | Disposed | 79.4% (price as of 2026-08-21) |
| March 27, 2023 | RMBS | S 10b5-1 | 12,500 | $44.99 | $562,375 | 329,653 Direct | -3.65% | Disposed | 104.5% (price as of 2026-08-21) |
| March 20, 2023 | RMBS | S 10b5-1 | 12,500 | $44.20 | $552,500 | 342,153 Direct | -3.52% | Disposed | 108.1% (price as of 2026-08-21) |
| March 13, 2023 | RMBS | S 10b5-1 | 12,500 | $41.06 | $513,250 | 354,653 Direct | -3.40% | Disposed | 124.1% (price as of 2026-08-21) |
| March 6, 2023 | RMBS | S 10b5-1 | 12,500 | $44.83 | $560,375 | 367,153 Direct | -3.29% | Disposed | 105.2% (price as of 2026-08-21) |
| April 25, 2022 | RMBS | S 10b5-1 | 8,313 | $25.30 | $210,319 | 240,807 Direct | -3.34% | Disposed | 263.6% (price as of 2026-08-21) |
| April 18, 2022 | RMBS | S 10b5-1 | 1,421 | $25.78 | $36,633 | 251,182 Direct | -0.56% | Disposed | 256.9% (price as of 2026-08-21) |
| April 18, 2022 | RMBS | S 10b5-1 | 704 | $25.80 | $18,163 | 251,182 Direct | -0.28% | Disposed | 256.6% (price as of 2026-08-21) |
| April 18, 2022 | RMBS | S 10b5-1 | 10,375 | $25.76 | $267,260 | 240,807 Direct | -4.13% | Disposed | 257.1% (price as of 2026-08-21) |
| April 11, 2022 | RMBS | S 10b5-1 | 12,500 | $25.86 | $323,250 | 251,182 Direct | -4.74% | Disposed | 255.8% (price as of 2026-08-21) |
| April 4, 2022 | RMBS | S 10b5-1 | 12,500 | $31.43 | $392,875 | 263,682 Direct | -4.53% | Disposed | 192.7% (price as of 2026-08-21) |
| March 28, 2022 | RMBS | S 10b5-1 | 12,500 | $32.30 | $403,750 | 276,182 Direct | -4.33% | Disposed | 184.8% (price as of 2026-08-21) |
| March 21, 2022 | RMBS | S 10b5-1 | 12,500 | $31.09 | $388,625 | 288,682 Direct | -4.15% | Disposed | 195.9% (price as of 2026-08-21) |
| March 14, 2022 | RMBS | S 10b5-1 | 12,500 | $26.68 | $333,500 | 301,182 Direct | -3.98% | Disposed | 244.8% (price as of 2026-08-21) |
| March 7, 2022 | RMBS | S 10b5-1 | 12,500 | $28.11 | $351,375 | 313,682 Direct | -3.83% | Disposed | 227.3% (price as of 2026-08-21) |
| Feb. 4, 2021 | RMBS | S 10b5-1 | 12,605 | $19.09 | $240,629 | 214,640 Direct | -5.55% | Disposed | 381.9% (price as of 2026-08-21) |
| Feb. 2, 2021 | RMBS | S 10b5-1 | 36,366 | $19.34 | $703,318 | 239,640 Direct | -13.18% | Disposed | 375.7% (price as of 2026-08-21) |
| Jan. 4, 2021 | RMBS | S 10b5-1 | 824 | $17.54 | $14,453 | 208,011 Direct | -0.39% | Disposed | 424.5% (price as of 2026-08-21) |
| Jan. 4, 2021 | RMBS | S 10b5-1 | 955 | $17.54 | $16,751 | 208,011 Direct | -0.46% | Disposed | 424.5% (price as of 2026-08-21) |
| Dec. 3, 2020 | RMBS | S 10b5-1 | 2,745 | $16.32 | $44,798 | 208,011 Direct | -1.30% | Disposed | 463.7% (price as of 2026-08-21) |
| Dec. 3, 2020 | RMBS | S 10b5-1 | 3,185 | $16.32 | $51,979 | 208,011 Direct | -1.51% | Disposed | 463.7% (price as of 2026-08-21) |
Showing latest 100 of 156 transactions
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| May 15, 2023 | RMBS | Employee stock option (right to buy) | Common Stock (302) | $12.80 | Feb. 1, 2027 | 302 | Disposed |
| May 15, 2023 | RMBS | Employee stock option (right to buy) | Common Stock (4,172) | $12.84 | Feb. 1, 2028 | 4,172 | Disposed |
| April 25, 2022 | RMBS | Employee stock option (right to buy) | Common Stock (8,313) | $12.84 | Feb. 1, 2028 | 8,313 | Disposed |
| April 18, 2022 | RMBS | Employee stock option (right to buy) | Common Stock (704) | $12.80 | Feb. 1, 2027 | 704 | Disposed |
| April 18, 2022 | RMBS | Employee stock option (right to buy) | Common Stock (1,421) | $12.84 | Feb. 1, 2028 | 1,421 | Disposed |
| Jan. 4, 2021 | RMBS | Employee stock option (right to buy) | Common Stock (824) | $12.80 | Feb. 1, 2027 | 824 | Disposed |
| Jan. 4, 2021 | RMBS | Employee stock option (right to buy) | Common Stock (955) | $12.84 | Feb. 1, 2028 | 955 | Disposed |
| Dec. 3, 2020 | RMBS | Employee stock option (right to buy) | Common Stock (2,745) | $12.80 | Feb. 1, 2027 | 2,745 | Disposed |
| Dec. 3, 2020 | RMBS | Employee stock option (right to buy) | Common Stock (3,185) | $12.84 | Feb. 1, 2028 | 3,185 | Disposed |
| Nov. 5, 2020 | RMBS | Employee stock option | Common Stock (2,745) | $12.80 | Feb. 1, 2027 | 2,745 | Disposed |
| Sept. 3, 2020 | RMBS | Employee stock options (right to buy) | Common Stock (2,425) | $12.84 | Feb. 1, 2028 | 2,425 | Disposed |
| Sept. 3, 2020 | RMBS | Employee stock options (right to buy) | Common Stock (759) | $12.84 | Feb. 1, 2028 | 759 | Disposed |
| June 3, 2020 | RMBS | Employee stock options (right to buy) | Common Stock (2,744) | $12.80 | Feb. 1, 2027 | 2,745 | Disposed |
| June 3, 2020 | RMBS | Employee stock options (right to buy) | Common Stock (3,184) | $12.84 | Feb. 1, 2028 | 3,185 | Disposed |
| May 6, 2020 | RMBS | Employee stock options (right to buy) | Common Stock (2,744) | $12.80 | Feb. 1, 2027 | 2,744 | Disposed |
| May 5, 2020 | RMBS | Employee stock options (right to buy) | Common Stock (3,184) | $12.84 | Feb. 1, 2028 | 3,184 | Disposed |
| May 5, 2020 | RMBS | Employee stock options (right to buy) | Common Stock (1,149) | $12.31 | Feb. 1, 2026 | 1,149 | Disposed |
| Jan. 29, 2020 | RMBS | Employee stock options (right to buy) | Common Stock (21,959) | $12.80 | Feb. 1, 2027 | 21,959 | Disposed |
| Dec. 26, 2019 | RMBS | Employee stock options (right to buy) | Common Stock (4,246) | $12.84 | Feb. 1, 2028 | 4,246 | Disposed |
| Dec. 26, 2019 | RMBS | Employee stock options (right to buy) | Common Stock (2,297) | $12.31 | Feb. 1, 2026 | 2,297 | Disposed |
| Sept. 13, 2019 | RMBS | Employee stock options (right to buy) | Common Stock (17,692) | $12.84 | Feb. 1, 2028 | 17,692 | Disposed |
| Sept. 13, 2019 | RMBS | Employee stock options (right to buy) | Common Stock (9,763) | $12.31 | Feb. 1, 2026 | 9,763 | Disposed |
| Sept. 13, 2019 | RMBS | Employee stock options (right to buy) | Common Stock (2,400) | $11.26 | Feb. 2, 2025 | 2,400 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 5 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| July 5, 2018 | RMBS | Common Stock | 136,142 | Direct |
| July 5, 2018 | RMBS | Employee Stock Option (right to buy)→ Common Stock (2,400) | 2,400 | Direct |
| July 5, 2018 | RMBS | Employee Stock Option (right to buy)→ Common Stock (13,209) | 13,209 | Direct |
| July 5, 2018 | RMBS | Employee Stock Option (right to buy)→ Common Stock (34,768) | 34,768 | Direct |
| July 5, 2018 | RMBS | Employee Stock Option (right to buy)→ Common Stock (49,537) | 49,537 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2025 | $726,250 | — | — | — | $869,652 | — | $13,572 | $9,507,546 |
| 2024 | $687,500 | — | — | — | $729,960 | — | $13,422 | $7,168,732 |
| 2023 | $625,000 | — | — | — | $595,400 | — | $13,104 | $8,423,593 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.