Christopher N. Gerosa
First SEC filing: Aug. 2, 2021 · Latest: Aug. 2, 2021
Insider at
Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Jan. 31, 2024 | MKTX | F | 22 | $274.33 | $6,035 | 1,752 Direct | -1.24% | Disposed | -40.2% (price as of 2026-10-05) |
| Jan. 31, 2024 | MKTX | F | 79 | $274.33 | $21,672 | 1,774 Direct | -4.26% | Disposed | -40.2% (price as of 2026-10-05) |
| Aug. 1, 2023 | MKTX | F | 91 | $262.60 | $23,897 | 1,853 Direct | -4.68% | Disposed | -37.5% (price as of 2026-10-05) |
| Feb. 15, 2023 | MKTX | A | 952 | · | · | 952 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 15, 2023 | MKTX | A | 328 | · | · | 1,944 Direct | +20.30% | Acquired | (price as of 2026-10-05) |
| Jan. 31, 2023 | MKTX | F | 28 | $363.85 | $10,188 | 1,616 Direct | -1.70% | Disposed | -54.9% (price as of 2026-10-05) |
| Jan. 31, 2023 | MKTX | F | 98 | $363.85 | $35,657 | 1,644 Direct | -5.63% | Disposed | -54.9% (price as of 2026-10-05) |
| Jan. 31, 2023 | MKTX | F | 41 | $363.85 | $14,918 | 1,742 Direct | -2.30% | Disposed | -54.9% (price as of 2026-10-05) |
| Aug. 1, 2022 | MKTX | F | 92 | $269.40 | $24,785 | 1,783 Direct | -4.91% | Disposed | -39.1% (price as of 2026-10-05) |
| Jan. 31, 2022 | MKTX | A | 540 | · | · | 540 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 31, 2022 | MKTX | F | 101 | $344.48 | $34,792 | 1,875 Direct | -5.11% | Disposed | -52.4% (price as of 2026-10-05) |
| Jan. 31, 2022 | MKTX | F | 41 | $344.48 | $14,124 | 1,976 Direct | -2.03% | Disposed | -52.4% (price as of 2026-10-05) |
| Jan. 31, 2022 | MKTX | F | 56 | $344.48 | $19,291 | 2,017 Direct | -2.70% | Disposed | -52.4% (price as of 2026-10-05) |
| Jan. 31, 2022 | MKTX | A | 156 | · | · | 2,073 Direct | +8.14% | Acquired | (price as of 2026-10-05) |
| Aug. 1, 2021 | MKTX | A | 1,915 | · | · | 1,915 Direct | · | Acquired | (price as of 2026-10-05) |
| Aug. 1, 2021 | MKTX | A | 535 | · | · | 1,917 Direct | +38.71% | Acquired | (price as of 2026-10-05) |
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 |
|---|---|---|---|---|---|---|---|
| Feb. 15, 2023 | MKTX | Stock Option (right to buy) | Common Stock | $358.53 | Feb. 15, 2029 | 952 | Acquired |
| Jan. 31, 2022 | MKTX | Stock Option (right to buy) | Common Stock | $344.48 | Jan. 31, 2028 | 540 | Acquired |
| Aug. 1, 2021 | MKTX | Stock Option (right to buy) | Common Stock | $475.17 | Aug. 1, 2027 | 1,915 | 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 |
|---|---|---|---|---|
| Aug. 2, 2021 | MKTX | Common Stock, par value $0.003 per share | 1,382 | 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 |
|---|---|---|---|---|---|---|---|---|
| 2022 | $300,000 | · | $160,872 | $53,552 | $600,000 | · | $10,000 | $1,124,424 |
| 2021 | $276,667 | · | $1,066,021 | $250,098 | $370,000 | · | $10,000 | $1,972,786 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.