Michael Mason
CIK 1514291 · View on SEC EDGAR ↗
Insider
First SEC filing: March 3, 2011 · Latest: Feb. 9, 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)
0 sells (S)
Net:
$0
+ 54 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
54 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 4, 2024 | KPTI | S | 7,050 | $0.72 | $5,076 | 391,054 Direct | -1.77% | Disposed | -81.6% (price as of 2026-08-19) |
| June 4, 2024 | KPTI | S | 652 | $0.99 | $645 | 398,104 Direct | -0.16% | Disposed | -86.6% (price as of 2026-08-19) |
| March 1, 2024 | KPTI | S | 6,162 | $1.20 | $7,394 | 398,756 Direct | -1.52% | Disposed | -88.9% (price as of 2026-08-19) |
| Feb. 29, 2024 | KPTI | S | 27,687 | $1.17 | $32,394 | 404,918 Direct | -6.40% | Disposed | -88.7% (price as of 2026-08-19) |
| Feb. 27, 2024 | KPTI | S | 2,545 | $1.32 | $3,359 | 244,400 Direct | -1.03% | Disposed | -89.9% (price as of 2026-08-19) |
| Feb. 6, 2024 | KPTI | S | 4,205 | $1.59 | $6,686 | 246,945 Direct | -1.67% | Disposed | -91.7% (price as of 2026-08-19) |
| Sept. 1, 2023 | KPTI | S | 6,913 | $1.33 | $9,194 | 237,817 Direct | -2.82% | Disposed | -90.0% (price as of 2026-08-19) |
| June 2, 2023 | KPTI | S | 631 | $2.22 | $1,401 | 244,730 Direct | -0.26% | Disposed | -94.0% (price as of 2026-08-19) |
| March 1, 2023 | KPTI | S | 11,205 | $3.03 | $33,951 | 245,361 Direct | -4.37% | Disposed | -95.6% (price as of 2026-08-19) |
| Feb. 27, 2023 | KPTI | S | 2,802 | $3.04 | $8,518 | 161,566 Direct | -1.70% | Disposed | -95.6% (price as of 2026-08-19) |
| Feb. 6, 2023 | KPTI | S | 4,141 | $3.40 | $14,079 | 164,368 Direct | -2.46% | Disposed | -96.1% (price as of 2026-08-19) |
| June 3, 2022 | KPTI | S | 3 | $6.07 | $18 | 138,509 Direct | 0.00% | Disposed | -97.8% (price as of 2026-08-19) |
| June 3, 2022 | KPTI | S | 598 | $6.04 | $3,612 | 138,512 Direct | -0.43% | Disposed | -97.8% (price as of 2026-08-19) |
| Feb. 28, 2022 | KPTI | S | 2,398 | $10.24 | $24,556 | 139,110 Direct | -1.69% | Disposed | -98.7% (price as of 2026-08-19) |
| Feb. 7, 2022 | KPTI | S | 3,947 | $9.86 | $38,917 | 53,308 Direct | -6.89% | Disposed | -98.7% (price as of 2026-08-19) |
| Feb. 11, 2021 | KPTI | S | 2,858 | $15.52 | $44,356 | 5,292 Direct | -35.07% | Disposed | -99.1% (price as of 2026-08-19) |
| Jan. 4, 2018 | ALNY | S 10b5-1 | 5,249 | $130.42 | $684,575 | 31,496 Direct | -14.28% | Disposed | 84.1% (price as of 2026-08-19) |
| Jan. 4, 2018 | ALNY | S 10b5-1 | 16,500 | $131.20 | $2,164,800 | 14,996 Direct | -52.39% | Disposed | 83.0% (price as of 2026-08-19) |
| Jan. 4, 2018 | ALNY | S 10b5-1 | 12,405 | $132.18 | $1,639,693 | 2,591 Direct | -82.72% | Disposed | 81.7% (price as of 2026-08-19) |
| Jan. 4, 2018 | ALNY | S 10b5-1 | 1,591 | $132.98 | $211,571 | 1,000 Direct | -61.40% | Disposed | 80.6% (price as of 2026-08-19) |
| Jan. 4, 2018 | ALNY | S 10b5-1 | 400 | $133.83 | $53,532 | 600 Direct | -40.00% | Disposed | 79.4% (price as of 2026-08-19) |
| Jan. 4, 2018 | ALNY | S 10b5-1 | 600 | $135.00 | $81,000 | 0 Direct | -100.00% | Disposed | 77.9% (price as of 2026-08-19) |
| Feb. 3, 2014 | ALNY | S 10b5-1 | 1,540 | $78.08 | $120,243 | 3,747 Direct | -29.13% | Disposed | 207.5% (price as of 2026-08-19) |
| Feb. 3, 2014 | ALNY | S 10b5-1 | 2,110 | $79.04 | $166,774 | 1,637 Direct | -56.31% | Disposed | 203.8% (price as of 2026-08-19) |
| Feb. 3, 2014 | ALNY | S 10b5-1 | 100 | $79.74 | $7,974 | 1,537 Direct | -6.11% | Disposed | 201.1% (price as of 2026-08-19) |
| Dec. 16, 2013 | ALNY | S 10b5-1 | 5,800 | $60.20 | $349,160 | 10,047 Direct | -36.60% | Disposed | 298.9% (price as of 2026-08-19) |
| Dec. 16, 2013 | ALNY | S 10b5-1 | 2,200 | $60.77 | $133,694 | 7,847 Direct | -21.90% | Disposed | 295.1% (price as of 2026-08-19) |
| Dec. 2, 2013 | ALNY | S 10b5-1 | 1,905 | $61.55 | $117,253 | 9,692 Direct | -16.43% | Disposed | 290.1% (price as of 2026-08-19) |
| Dec. 2, 2013 | ALNY | S 10b5-1 | 1,845 | $62.12 | $114,611 | 7,847 Direct | -19.04% | Disposed | 286.5% (price as of 2026-08-19) |
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 |
|---|---|---|---|---|---|---|---|
| Aug. 31, 2022 | KPTI | Stock Option (right to buy) | Common Stock (45,000) | $5.06 | Aug. 30, 2032 | 45,000 | Acquired |
| Feb. 28, 2022 | KPTI | Stock Option (right to buy) | Common Stock (111,600) | $10.33 | Feb. 27, 2032 | 111,600 | Acquired |
| June 1, 2021 | KPTI | Stock Option (right to buy) | Common Stock (15,000) | $9.15 | May 31, 2031 | 15,000 | Acquired |
| Feb. 25, 2021 | KPTI | Stock Option (right to buy) | Common Stock (59,968) | $14.56 | Feb. 24, 2031 | 59,968 | Acquired |
| Feb. 5, 2021 | KPTI | Restricted Stock Units | Common Stock (8,150) | — | — | 8,150 | Disposed |
| Feb. 5, 2020 | KPTI | Restricted Stock Units | Common Stock (32,600) | — | — | 32,600 | Acquired |
| Feb. 5, 2020 | KPTI | Stock Option (right to buy) | Common Stock (87,600) | $18.00 | Feb. 4, 2030 | 87,600 | Acquired |
| Feb. 25, 2019 | KPTI | Nonstatutory Stock Option (right to buy) | Common Stock (150,000) | $5.06 | Feb. 24, 2029 | 150,000 | Acquired |
| Jan. 4, 2018 | ALNY | Performance Stock Option 2013 (right to buy) | Common Stock (1,667) | $63.00 | Dec. 17, 2023 | 1,667 | Disposed |
| Jan. 4, 2018 | ALNY | Performance Stock Option 2014 (right to buy) | Common Stock (2,750) | $96.45 | Dec. 17, 2024 | 2,750 | Disposed |
| Jan. 4, 2018 | ALNY | Performance Stock Option 2014 (right to buy) | Common Stock (2,750) | $96.45 | Dec. 17, 2024 | 2,750 | Disposed |
| Jan. 4, 2018 | ALNY | Stock Option (right to buy) | Common Stock (1,388) | $42.22 | Dec. 20, 2026 | 1,388 | Disposed |
| Jan. 4, 2018 | ALNY | Stock Option (right to buy) | Common Stock (3,439) | $63.00 | Dec. 18, 2023 | 3,439 | Disposed |
| Jan. 4, 2018 | ALNY | Stock Option (right to buy) | Common Stock (3,600) | $88.95 | Dec. 18, 2025 | 3,600 | Disposed |
| Jan. 4, 2018 | ALNY | Stock Option (right to buy) | Common Stock (6,187) | $96.45 | Dec. 17, 2024 | 6,187 | Disposed |
| Jan. 4, 2018 | ALNY | Stock Option (right to buy) | Common Stock (10,000) | $97.72 | Dec. 7, 2025 | 10,000 | Disposed |
| Dec. 30, 2017 | ALNY | Restricted Stock Unit | Common Stock (8,502) | — | — | 8,502 | Disposed |
| Dec. 20, 2017 | ALNY | Performance Stock Option 2016 (right to buy) | Common Stock (1,388) | $42.22 | Dec. 20, 2026 | 1,388 | Acquired |
| Dec. 30, 2016 | ALNY | Restricted Stock Units | Common Stock (8,502) | — | — | 8,502 | Acquired |
| Dec. 20, 2016 | ALNY | Stock Option (right to buy) | Common Stock (5,550) | $42.22 | Dec. 20, 2026 | 5,550 | Acquired |
| Feb. 1, 2016 | ALNY | Performance Stock Option 2014 (right to buy) | Common Stock (2,750) | $96.45 | Dec. 17, 2024 | 2,750 | Acquired |
| Dec. 18, 2015 | ALNY | Stock Option (right to buy) | Common Stock (7,200) | $88.95 | Dec. 18, 2025 | 7,200 | Acquired |
| Dec. 18, 2013 | ALNY | Stock Option (right to buy) | Common Stock (5,000) | $63.00 | Dec. 18, 2023 | 5,000 | Acquired |
| Dec. 16, 2013 | ALNY | Stock Option (right to buy) | Common Stock (2,000) | $9.14 | Dec. 8, 2020 | 2,000 | Disposed |
| Dec. 16, 2013 | ALNY | Stock Option (right to buy) | Common Stock (3,000) | $10.98 | Feb. 28, 2021 | 3,000 | Disposed |
| Dec. 16, 2013 | ALNY | Stock Option (right to buy) | Common Stock (3,000) | $16.43 | Dec. 10, 2019 | 3,000 | Disposed |
| Dec. 2, 2013 | ALNY | Stock Option (right to buy) | Common Stock (3,750) | $7.10 | Nov. 30, 2021 | 3,750 | Disposed |
| Dec. 20, 2012 | ALNY | Stock Option (right to buy) | Common Stock (10,000) | $18.66 | Dec. 20, 2022 | 10,000 | Acquired |
| Nov. 30, 2011 | ALNY | Stock Option (right to buy) | Common Stock (15,000) | $7.10 | Nov. 30, 2021 | 15,000 | Acquired |
| Feb. 28, 2011 | ALNY | Stock Option (right to buy) | Common Stock (25,000) | $10.98 | Feb. 28, 2021 | 25,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 7 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| March 3, 2011 | ALNY | Common Stock | 708 | Indirect |
| March 3, 2011 | ALNY | Stock Option (right to buy)→ Common Stock (17,500) | 17,500 | Direct |
| March 3, 2011 | ALNY | Stock Option (right to buy)→ Common Stock (17,500) | 17,500 | Direct |
| March 3, 2011 | ALNY | Stock Option (right to buy)→ Common Stock (16,000) | 16,000 | Direct |
| March 3, 2011 | ALNY | Stock Option (right to buy)→ Common Stock (12,000) | 12,000 | Direct |
| March 3, 2011 | ALNY | Stock Option (right to buy)→ Common Stock (15,000) | 15,000 | Direct |
| March 3, 2011 | ALNY | Stock Option (right to buy)→ Common Stock (14,200) | 14,200 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
ALNY
PFO| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2014 | $257,187 | — | — | — | $82,000 | — | $6,167 | $345,354 |
| 2013 | $252,144 | — | — | — | $81,316 | — | $6,101 | $500,850 |
| 2012 | $247,200 | — | — | — | $57,845 | — | $6,204 | $488,602 |
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2023 | $500,320 | — | $426,632 | — | $191,623 | — | $20,737 | $1,139,312 |
| 2022 | $472,000 | — | $1,062,906 | $954,532 | $193,048 | — | $16,546 | $2,699,032 |
| 2021 | $444,386 | $50,000 | $370,834 | $681,352 | $182,000 | — | $16,006 | $1,744,578 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.