Leiden Dworak
CIK 1986012 · View on SEC EDGAR ↗
Insider
First SEC filing: Aug. 22, 2025 · Latest: Aug. 22, 2025
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 3 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 |
|---|---|---|---|---|---|---|---|---|---|
| Jan. 20, 2026 | TCRX | A | 100,000 | — | — | 100,000 Direct | — | Acquired | (price as of 2026-08-20) |
| Jan. 12, 2024 | TCRX | A | 46,875 | — | — | 46,875 Direct | — | Acquired | (price as of 2026-08-20) |
| July 21, 2023 | TCRX | A | 25,000 | — | — | 25,000 Direct | — | Acquired | (price as of 2026-08-20) |
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 |
|---|---|---|---|---|---|---|---|
| Jan. 20, 2026 | TCRX | Stock Option (Right to Buy) | Voting Common Stock (100,000) | $1.12 | Jan. 20, 2036 | 100,000 | Acquired |
| Jan. 12, 2024 | TCRX | Stock Option (Right to Buy) | Voting Common Stock (46,875) | $6.00 | Jan. 12, 2034 | 46,875 | Acquired |
| July 21, 2023 | TCRX | Stock Option (Right to Buy) | Voting Common Stock (25,000) | $2.23 | July 20, 2033 | 25,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 10 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Aug. 22, 2025 | TCRX | Stock Option (Right to Buy)→ Voting Common Stock (37,500) | 37,500 | Direct |
| Aug. 22, 2025 | TCRX | Stock Option (Right to Buy)→ Voting Common Stock (23,750) | 23,750 | Direct |
| Aug. 22, 2025 | TCRX | Stock Option (Right to Buy)→ Voting Common Stock (163,800) | 163,800 | Direct |
| Aug. 22, 2025 | TCRX | Stock Option (Right to Buy)→ Voting Common Stock (25,000) | 25,000 | Direct |
| Aug. 22, 2025 | TCRX | Stock Option (Right to Buy)→ Voting Common Stock (46,875) | 46,875 | Direct |
| Aug. 22, 2025 | TCRX | Stock Option (Right to Buy)→ Voting Common Stock (70,000) | 70,000 | Direct |
| July 24, 2023 | TCRX | Voting Common Stock | 5,692 | Direct |
| July 24, 2023 | TCRX | Stock Option (Right to Buy)→ Voting Common Stock (37,500) | 37,500 | Direct |
| July 24, 2023 | TCRX | Stock Option (Right to Buy)→ Voting Common Stock (28,750) | 28,750 | Direct |
| July 24, 2023 | TCRX | Stock Option (Right to Buy)→ Voting Common Stock (163,800) | 163,800 | Direct |