Juan Vera

CIK 1755495 · View on SEC EDGAR ↗

Insider

First SEC filing: July 30, 2020 · Latest: July 30, 2020

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 17 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

17 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
March 16, 2021 MRKR P 571,428 $1.75 $999,999 2,564,487 Direct +28.67% Acquired -92.7% (price as of 2026-08-21)
March 3, 2021 KLRS S 10b5-1 7,546 $38.63 $291,502 2,339,928 Direct -0.32% Disposed -99.5% (price as of 2026-08-21)
March 3, 2021 KLRS S 10b5-1 7,142 $38.22 $272,967 2,347,474 Direct -0.30% Disposed -99.5% (price as of 2026-08-21)
March 3, 2021 KLRS S 10b5-1 1,300 $37.01 $48,113 2,354,616 Direct -0.06% Disposed -99.5% (price as of 2026-08-21)
March 2, 2021 KLRS S 10b5-1 1,803 $39.10 $70,497 2,355,916 Direct -0.08% Disposed -99.5% (price as of 2026-08-21)
March 2, 2021 KLRS S 10b5-1 9,001 $38.30 $344,738 2,357,719 Direct -0.38% Disposed -99.5% (price as of 2026-08-21)
March 2, 2021 KLRS S 10b5-1 4,190 $37.28 $156,203 2,366,720 Direct -0.18% Disposed -99.5% (price as of 2026-08-21)
March 1, 2021 KLRS S 10b5-1 700 $39.53 $27,671 2,370,910 Direct -0.03% Disposed -99.5% (price as of 2026-08-21)
March 1, 2021 KLRS S 10b5-1 20,584 $38.73 $797,218 2,371,610 Direct -0.86% Disposed -99.5% (price as of 2026-08-21)
March 1, 2021 KLRS S 10b5-1 11,570 $38.28 $442,900 2,392,194 Direct -0.48% Disposed -99.5% (price as of 2026-08-21)
Feb. 23, 2021 KLRS S 10b5-1 600 $40.97 $24,582 2,403,764 Direct -0.02% Disposed -99.6% (price as of 2026-08-21)
Feb. 23, 2021 KLRS S 10b5-1 2,300 $40.13 $92,299 2,404,364 Direct -0.10% Disposed -99.6% (price as of 2026-08-21)
Feb. 23, 2021 KLRS S 10b5-1 4,825 $39.11 $188,706 2,406,664 Direct -0.20% Disposed -99.5% (price as of 2026-08-21)
Feb. 23, 2021 KLRS S 10b5-1 1,125 $38.33 $43,121 2,411,489 Direct -0.05% Disposed -99.5% (price as of 2026-08-21)
Feb. 22, 2021 KLRS S 10b5-1 380 $43.40 $16,492 2,412,614 Direct -0.02% Disposed -99.6% (price as of 2026-08-21)
Feb. 22, 2021 KLRS S 10b5-1 11,050 $42.80 $472,940 2,412,994 Direct -0.46% Disposed -99.6% (price as of 2026-08-21)
Feb. 22, 2021 KLRS S 10b5-1 2,891 $41.58 $120,208 2,424,044 Direct -0.12% Disposed -99.6% (price as of 2026-08-21)
Feb. 19, 2021 KLRS S 10b5-1 13,233 $41.79 $553,007 2,426,935 Direct -0.54% Disposed -99.6% (price as of 2026-08-21)
Feb. 18, 2021 KLRS S 10b5-1 3,710 $41.49 $153,928 2,440,168 Direct -0.15% Disposed -99.6% (price as of 2026-08-21)
Feb. 18, 2021 KLRS S 10b5-1 4,032 $40.44 $163,054 2,443,878 Direct -0.16% Disposed -99.6% (price as of 2026-08-21)
Feb. 18, 2021 KLRS S 10b5-1 1,200 $39.48 $47,376 2,447,910 Direct -0.05% Disposed -99.5% (price as of 2026-08-21)
Feb. 17, 2021 KLRS S 10b5-1 4,060 $41.26 $167,516 2,449,110 Direct -0.17% Disposed -99.6% (price as of 2026-08-21)
Feb. 17, 2021 KLRS S 10b5-1 1,400 $40.00 $56,000 2,453,170 Direct -0.06% Disposed -99.6% (price as of 2026-08-21)
Feb. 17, 2021 KLRS S 10b5-1 2,000 $38.71 $77,420 2,454,570 Direct -0.08% Disposed -99.5% (price as of 2026-08-21)
Feb. 16, 2021 KLRS S 10b5-1 966 $42.53 $41,084 2,456,570 Direct -0.04% Disposed -99.6% (price as of 2026-08-21)
Feb. 16, 2021 KLRS S 10b5-1 9,434 $41.79 $394,247 2,457,536 Direct -0.38% Disposed -99.6% (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
Feb. 12, 2025 MRKR Employee Stock Option (right to buy) Common Stock (50,000) $1.59 Feb. 12, 2035 50,000 Acquired
May 10, 2023 MRKR Employee Stock Option (right to buy) Common Stock (100,000) $1.42 May 10, 2033 100,000 Acquired
Feb. 27, 2023 MRKR Employee Stock Option (right to buy) Common Stock (46,487) $2.14 Feb. 27, 2033 46,487 Acquired
May 17, 2022 KLRS Stock Option (Right to Buy) Common Stock (27,500) $4.60 May 16, 2032 27,500 Acquired
Feb. 17, 2022 MRKR Employee Stock Option (right to buy) Common Stock (160,000) $0.46 Feb. 17, 2032 160,000 Acquired
May 25, 2021 KLRS Stock Option (Right to Buy) Common Stock (22,500) $21.51 May 24, 2031 22,500 Acquired
Feb. 10, 2021 MRKR Employee Stock Option (right to buy) Common Stock (140,000) $3.29 Feb. 10, 2031 140,000 Acquired
Aug. 3, 2020 KLRS Series A-3 Convertible Preferred Stock Common Stock (2,436,773) — — 3,631,293 Disposed
July 29, 2020 KLRS Stock Option (Right to Buy) Common Stock (22,500) $17.00 July 29, 2030 22,500 Acquired
March 10, 2020 MRKR Employee Stock Option (Right to Buy) Common Stock (113,400) $2.12 March 10, 2030 113,400 Acquired
March 10, 2020 MRKR Employee Stock Option (Right to Buy) Common Stock (26,600) $2.12 March 10, 2030 26,600 Acquired
Oct. 19, 2018 MRKR Employee Stock Option (Right to Buy) [F1] Common Stock (500,000) $9.18 Oct. 19, 2028 500,000 Acquired

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

Initial ownership (Form 3) 4 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date Ticker Security Shares Ownership
July 30, 2020 KLRS Common Stock 30,197 Direct
July 30, 2020 KLRS Series A-3 Convertible Preferred Stock→ Common Stock (2,436,773) 2,436,773 Direct
Oct. 19, 2018 MRKR Common Stock 1,993,059 Direct
Oct. 19, 2018 MRKR Warrants to Acquire Common Stock→ Common Stock (722,783) 722,783 Direct