Isan Chen
CIK 1586218 · View on SEC EDGAR ↗
Insider
First SEC filing: Sept. 14, 2021 · Latest: Sept. 14, 2021
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 |
|---|---|---|---|---|---|---|---|---|---|
| May 31, 2023 | TYRA | A | 14,500 | — | — | 14,500 Direct | — | Acquired | (price as of 2026-08-19) |
| June 13, 2022 | TYRA | A | 14,500 | — | — | 14,500 Direct | — | Acquired | (price as of 2026-08-19) |
| Sept. 17, 2021 | TYRA | C | 7,290 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-19) |
| Sept. 17, 2021 | TYRA | C | 16,366 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-19) |
| Sept. 17, 2021 | TYRA | C | 61,444 | — | — | 192,783 Direct | +46.78% | Acquired | (price as of 2026-08-19) |
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 |
|---|---|---|---|---|---|---|---|
| May 31, 2023 | TYRA | Stock Option (Right to Buy) | Common Stock (14,500) | $14.47 | May 30, 2033 | 14,500 | Acquired |
| June 13, 2022 | TYRA | Stock Option (Right to Buy) | Common Stock (14,500) | $5.38 | June 12, 2032 | 14,500 | Acquired |
| Sept. 17, 2021 | TYRA | Series B Preferred Stock | Common Stock (18,935) | — | — | 7,290 | Disposed |
| Sept. 17, 2021 | TYRA | Series A Preferred Stock | Common Stock (42,509) | — | — | 16,366 | Disposed |
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 |
|---|---|---|---|---|
| Sept. 14, 2021 | TYRA | Common Stock | 131,339 | Direct |
| Sept. 14, 2021 | TYRA | Series A Preferred Stock→ Common Stock (42,509) | 42,509 | Direct |
| Sept. 14, 2021 | TYRA | Series B Preferred Stock→ Common Stock (18,935) | 18,935 | Direct |
| Sept. 14, 2021 | TYRA | Stock Option (Right to Buy)→ Common Stock (67,467) | 67,467 | Direct |