Insider at

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Insider transactions

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0 buys (P) 0 sells (S) Net: $0 + 10 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

10 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
March 16, 2021 MRKR P 142,857 $1.75 $250,000 332,568 Direct +75.30% Acquired -94.2% (price as of 2026-10-06)
Aug. 14, 2019 MRKR P 10,000 $4.62 $46,200 189,711 Direct +5.56% Acquired -97.8% (price as of 2026-10-06)

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.

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DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Feb. 17, 2022 MRKR Employee Stock Option (right to buy) Common Stock (430,000) $0.46 Feb. 17, 2032 430,000 Acquired
Feb. 11, 2021 MRKR Employee Stock Option (right to buy) Common Stock (430,000) $3.06 Feb. 11, 2031 430,000 Acquired
March 10, 2020 MRKR Employee Stock Option (Right to Buy) Common Stock (388,800) $2.12 March 10, 2030 388,800 Acquired
March 10, 2020 MRKR Employee Stock Option (Right to Buy) Common Stock (41,200) $2.12 March 10, 2030 41,200 Acquired
Oct. 19, 2018 MRKR Employee Stock Option (Right to Buy) [F2] Common Stock (200,000) $9.18 Oct. 19, 2028 200,000 Acquired
Oct. 19, 2018 MRKR Employee Stock Option (Right to Buy) [F1] Common Stock (1,359,855) $9.18 Oct. 19, 2028 1,359,855 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Compensation (DEF 14A)

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

MRKR

CEO
Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2019 $380,000 · · · $71,665 · · $451,665
2018 $362,500 · · $12,469,870 $181,250 · · $13,013,620

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