Michael John Tomsicek

CIK 1570392 · View on SEC EDGAR ↗

Insider

First SEC filing: May 8, 2019 · Latest: June 12, 2026

On this page

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 30 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

30 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Oct. 19, 2022 MIST P 15,000 $5.32 $79,800 15,000 Direct — Acquired -80.4% (price as of 2026-08-21)
Aug. 6, 2021 CRSP S 10b5-1 5,989 $139.46 $835,226 1,891 Direct -76.00% Disposed -57.3% (price as of 2026-08-21)
Aug. 6, 2021 CRSP S 10b5-1 19,011 $138.22 $2,627,700 7,880 Direct -70.70% Disposed -56.9% (price as of 2026-08-21)
Sept. 1, 2020 CRSP S 10b5-1 2,800 $93.18 $260,904 410 Direct -87.23% Disposed -36.1% (price as of 2026-08-21)
Sept. 1, 2020 CRSP S 10b5-1 6,400 $92.23 $590,272 3,210 Direct -66.60% Disposed -35.4% (price as of 2026-08-21)
Sept. 1, 2020 CRSP S 10b5-1 2,800 $91.39 $255,892 9,610 Direct -22.56% Disposed -34.8% (price as of 2026-08-21)
Aug. 3, 2020 CRSP S 10b5-1 5,448 $87.33 $475,774 410 Direct -93.00% Disposed -31.8% (price as of 2026-08-21)
Aug. 3, 2020 CRSP S 10b5-1 6,552 $86.25 $565,110 5,858 Direct -52.80% Disposed -31.0% (price as of 2026-08-21)

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
June 17, 2026 ACRV Stock Option (Right to Buy) Common Stock (20,275) $1.52 June 16, 2036 20,275 Acquired
June 10, 2026 MIST Stock Option (right to buy) Common Stock (77,000) $1.22 June 10, 2036 77,000 Acquired
June 13, 2025 ACRV Stock Option (Right to Buy) Common Stock (20,275) $1.20 June 12, 2035 20,275 Acquired
June 10, 2025 MIST Stock Option (right to buy) Common Stock (40,000) $1.75 June 10, 2035 40,000 Acquired
Aug. 28, 2024 MIST Stock Option (right to buy) Common Shares (40,000) $1.45 Aug. 28, 2034 40,000 Acquired
June 20, 2024 ACRV Stock Option (Right to Buy) Common Stock (20,275) $6.52 June 19, 2034 20,275 Acquired
June 7, 2023 MIST Stock Option (right to buy) Common Shares (30,000) $3.86 June 7, 2033 30,000 Acquired
Nov. 14, 2022 ACRV Stock Option (Right to Buy) Common Stock (35,235) $12.50 Nov. 13, 2032 35,235 Acquired
July 5, 2022 MIST Stock Option (right to buy) Common Shares (30,000) $6.07 July 5, 2032 30,000 Acquired
June 14, 2021 MIST Stock Option (right to buy) Common Shares (30,000) $5.54 June 14, 2031 30,000 Acquired
March 11, 2021 CRSP Stock Option (Right to Buy) Common Shares (25,000) $17.75 Nov. 21, 2027 25,000 Disposed
March 11, 2021 CRSP Restricted Stock Units Common Shares (9,000) — — 9,000 Acquired
March 11, 2021 CRSP Stock Option (Right to Buy) Common Shares (25,360) $133.88 March 11, 2031 25,360 Acquired
Oct. 5, 2020 CRSP Stock Option (Right to Buy) Common Shares (11,666) $86.75 Oct. 5, 2030 11,666 Acquired
Sept. 1, 2020 CRSP Stock Option (Right to Buy) Common Shares (12,000) $17.75 Nov. 21, 2027 12,000 Disposed
June 5, 2020 MIST Stock Option (right to buy) Common Shares (15,000) $3.74 June 5, 2030 15,000 Acquired
March 10, 2020 CRSP Restricted Stock Units Common Shares (8,500) — — 8,500 Acquired
March 10, 2020 CRSP Stock Option (Right to Buy) Common Shares (35,000) $44.67 March 10, 2030 35,000 Acquired
Dec. 3, 2019 CRSP Restricted Stock Units Common Shares (20,000) — — 20,000 Acquired
March 5, 2019 CRSP Stock Option (Right to Buy) Common Shares (75,000) $40.87 March 5, 2029 75,000 Acquired
June 15, 2018 CRSP Stock Option (Right to Buy) Common Shares (20,760) $59.31 June 15, 2028 20,760 Acquired
March 7, 2018 CRSP Stock Option (Right to Buy) Common Shares (25,000) $51.49 March 7, 2028 25,000 Acquired
Nov. 13, 2017 CRSP Stock Option (Right to Buy) Common Shares (12,000) $17.75 Nov. 21, 2027 12,000 Disposed
Nov. 13, 2017 CRSP Stock Option (Right to Buy) Common Shares (180,000) $17.75 Nov. 21, 2027 180,000 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
May 8, 2019 MIST Stock Option (right to buy)→ Common Shares (27,447) 27,447 Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

CRSP

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2021 $435,483 — — — — — $11,600 $3,760,766
2017 $51,885 — — — $23,987 — — $2,111,414

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.