Tsvetelina P Hoang
CIK 1763023 · View on SEC EDGAR ↗
Insider
First SEC filing: Dec. 28, 2018 · Latest: Dec. 28, 2018
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 5 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
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Feb. 27, 2023 | MRKR | A | 33,159 | — | — | 33,159 Direct | — | Acquired | (price as of 2026-08-21) |
| Feb. 17, 2022 | MRKR | A | 40,000 | — | — | 40,000 Direct | — | Acquired | (price as of 2026-08-21) |
| Feb. 10, 2021 | MRKR | A | 40,000 | — | — | 40,000 Direct | — | Acquired | (price as of 2026-08-21) |
| March 10, 2020 | MRKR | A | 25,400 | — | — | 25,400 Direct | — | Acquired | (price as of 2026-08-21) |
| March 10, 2020 | MRKR | A | 14,600 | — | — | 14,600 Direct | — | Acquired | (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. 27, 2023 | MRKR | Employee Stock Option (right to buy) | Common Stock (33,159) | $2.14 | Feb. 27, 2033 | 33,159 | Acquired |
| Feb. 17, 2022 | MRKR | Employee Stock Option (right to buy) | Common Stock (40,000) | $0.46 | Feb. 17, 2032 | 40,000 | Acquired |
| Feb. 10, 2021 | MRKR | Employee Stock Option (right to buy) | Common Stock (40,000) | $3.29 | Feb. 10, 2031 | 40,000 | Acquired |
| March 10, 2020 | MRKR | Employee Stock Option (Right to Buy) | Common Stock (25,400) | $2.12 | March 10, 2030 | 25,400 | Acquired |
| March 10, 2020 | MRKR | Employee Stock Option (Right to Buy) | Common Stock (14,600) | $2.12 | March 10, 2030 | 14,600 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.