Michael Alexander Smith
CIK 1870278 · View on SEC EDGAR ↗
First SEC filing: July 9, 2021 · Latest: June 5, 2026
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
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 22, 2026 | INSM | S 10b5-1 | 1,806 | $95.82 | $173,051 | 37,648 Direct | -4.58% | Disposed | 34.4% (price as of 2026-08-19) |
| June 3, 2026 | INSM | S | 2,159 | $102.27 | $220,801 | 39,454 | — | — | 26.0% (price as of 2026-08-19) |
| July 15, 2025 | INSM | S 10b5-1 | 933 | $102.51 | $95,642 | 66,394 Direct | -1.39% | Disposed | 25.7% (price as of 2026-08-19) |
| July 11, 2025 | INSM | S | 748 | $96.41 | $72,115 | 67,327 Direct | -1.10% | Disposed | 33.6% (price as of 2026-08-19) |
| July 11, 2023 | INSM | S | 740 | $20.18 | $14,933 | 77,142 Direct | -0.95% | Disposed | 538.3% (price as of 2026-08-19) |
| May 17, 2022 | INSM | S | 1,055 | $20.37 | $21,490 | 50,583 Direct | -2.04% | Disposed | 532.4% (price as of 2026-08-19) |
| May 16, 2022 | INSM | S | 433 | $18.48 | $8,002 | 51,638 Direct | -0.83% | Disposed | 597.0% (price as of 2026-08-19) |
| Jan. 11, 2022 | INSM | S | 407 | $25.11 | $10,220 | 37,426 Direct | -1.08% | Disposed | 413.0% (price as of 2026-08-19) |
| Jan. 6, 2022 | INSM | S | 387 | $26.00 | $10,062 | 28,375 Direct | -1.35% | Disposed | 395.4% (price as of 2026-08-19) |
| Jan. 5, 2022 | INSM | S | 749 | $27.61 | $20,680 | 28,762 Direct | -2.54% | Disposed | 366.5% (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 |
|---|---|---|---|---|---|---|---|
| May 11, 2022 | INSM | Stock Option (right to buy) | Common Stock (69,060) | $17.07 | May 11, 2032 | 69,060 | Acquired |
| Jan. 6, 2022 | INSM | Stock Option (right to buy) | Common Stock (45,700) | $26.43 | Jan. 6, 2032 | 45,700 | Acquired |
| July 8, 2021 | INSM | Stock Option (right to buy) | Common Stock (32,550) | $27.89 | July 8, 2031 | 32,550 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| July 9, 2021 | INSM | Common Stock | 22,506 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
INSM
Chief Legal Officer6| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2025 | $595,270 | — | $749,951 | $2,250,113 | $520,862 | — | $21,964 | $4,138,160 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.