David W Oman
Insider
First SEC filing: June 12, 2024 · Latest: June 12, 2024
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
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 |
|---|---|---|---|---|---|---|---|---|---|
| July 1, 2026 | TCBIO | M | 2,748 | · | · | 2,748 Direct | -50.00% | Disposed | (price as of 2026-10-05) |
| July 1, 2026 | TCBIO | F | 1,357 | $104.54 | $141,861 | 3,779 Direct | -26.42% | Disposed | -81.9% (price as of 2026-10-05) |
| July 1, 2026 | TCBIO | M | 2,748 | · | · | 5,136 Direct | +115.08% | Acquired | (price as of 2026-10-05) |
| Jan. 29, 2026 | TCBIO | M | 1,306 | · | · | 2,972 Direct | +78.39% | Acquired | (price as of 2026-10-05) |
| Jan. 29, 2026 | TCBIO | F | 584 | $98.87 | $57,740 | 2,388 Direct | -19.65% | Disposed | -80.9% (price as of 2026-10-05) |
| Jan. 29, 2026 | TCBIO | M | 1,306 | · | · | 2,613 Direct | -33.32% | Disposed | (price as of 2026-10-05) |
| Jan. 27, 2026 | TCBIO | A | 5,199 | · | · | 5,199 Direct | · | Acquired | (price as of 2026-10-05) |
| July 1, 2025 | TCBIO | M | 2,747 | · | · | 5,496 Direct | -33.33% | Disposed | (price as of 2026-10-05) |
| July 1, 2025 | TCBIO | F | 1,081 | $82.60 | $89,291 | 1,666 Direct | -39.35% | Disposed | -77.1% (price as of 2026-10-05) |
| July 1, 2025 | TCBIO | M | 2,747 | · | · | 2,747 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 28, 2025 | TCBIO | A | 3,919 | · | · | 3,919 Direct | · | Acquired | (price as of 2026-10-05) |
| July 1, 2024 | TCBIO | A | 8,243 | · | · | 8,243 Direct | · | Acquired | (price as of 2026-10-05) |
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 |
|---|---|---|---|---|---|---|---|
| July 1, 2026 | TCBIO | 2024 Restricted Stock Units | Common Stock | $0.00 | · | 2,748 | Disposed |
| Jan. 29, 2026 | TCBIO | 2025 Restricted Stock Units | Common Stock | $0.00 | · | 1,306 | Disposed |
| Jan. 27, 2026 | TCBIO | 2026 Restricted Stock Units | Common Stock | $0.00 | · | 5,199 | Acquired |
| July 1, 2025 | TCBIO | 2024 Restricted Stock Units | Common Stock | $0.00 | · | 2,747 | Disposed |
| Jan. 28, 2025 | TCBIO | 2025 Restricted Stock Units | Common Stock | $0.00 | · | 3,919 | Acquired |
| July 1, 2024 | TCBIO | 2024 Restricted Stock Units | Common Stock | $0.00 | · | 8,243 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| June 12, 2024 | TCBIO | Common Stock | 0 | Direct |