Postma Robert W
Insider
Activist
First SEC filing: March 22, 2021 · Latest: July 1, 2025
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
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| July 23, 2026 | TCRT | A | 8,463 | $1.92 | $16,249 | 58,609 Direct | +16.88% | Acquired | -57.3% (price as of 2026-10-02) |
| April 29, 2026 | TCRT | A | 6,274 | $2.59 | $16,250 | 50,146 Direct | +14.30% | Acquired | -68.3% (price as of 2026-10-02) |
| Jan. 12, 2026 | TCRT | A | 5,622 | $2.89 | $16,248 | 43,872 Direct | +14.70% | Acquired | -71.6% (price as of 2026-10-02) |
| Nov. 21, 2025 | TCRT | A | 5,142 | $3.16 | $16,249 | 38,250 Direct | +15.53% | Acquired | -74.1% (price as of 2026-10-02) |
| July 3, 2025 | TCRT | A | 6,400 | · | · | 6,400 Direct | · | Acquired | (price as of 2026-10-02) |
| July 3, 2025 | TCRT | A | 4,050 | · | · | 33,133 Direct | +13.93% | Acquired | (price as of 2026-10-02) |
| June 24, 2025 | TCRT | P | 600 | $4.49 | $2,694 | 600 Indirect | · | Acquired | -81.7% (price as of 2026-10-02) |
| April 13, 2025 | TCRT | A | 20,804 | $2.92 | $60,748 | 29,083 Direct | +251.29% | Acquired | -71.9% (price as of 2026-10-02) |
| April 13, 2025 | TCRT | A | 20,804 | $2.92 | $60,748 | 29,083 Direct | +251.29% | Acquired | -71.9% (price as of 2026-10-02) |
| April 11, 2025 | TCRT | P | 500 | $2.76 | $1,380 | 500 Indirect | · | Acquired | -70.3% (price as of 2026-10-02) |
| April 11, 2025 | TCRT | P | 500 | $2.76 | $1,380 | 500 Indirect | · | Acquired | -70.3% (price as of 2026-10-02) |
| June 6, 2024 | TCRT | A | 12,800 | · | · | 12,800 Direct | · | Acquired | (price as of 2026-10-02) |
| June 6, 2023 | TCRT | A | 100,000 | · | · | 100,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Nov. 29, 2022 | TCRT | P | 750,000 | $0.65 | $487,500 | 5,000,000 Indirect | +17.65% | Acquired | -99.2% (price as of 2026-10-02) |
| June 22, 2022 | TCRT | A | 100,000 | · | · | 100,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 22, 2022 | TCRT | A | 40,000 | · | · | 1,241,870 Direct | +3.33% | Acquired | (price as of 2026-10-02) |
| June 22, 2022 | TCRT | A | 100,000 | · | · | 100,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 22, 2022 | TCRT | A | 40,000 | · | · | 1,241,870 Direct | +3.33% | Acquired | (price as of 2026-10-02) |
| Sept. 2, 2021 | TCRT | P | 54,492 | $1.73 | $94,271 | 4,250,000 Indirect | +1.30% | Acquired | -99.7% (price as of 2026-10-02) |
| Sept. 2, 2021 | TCRT | P | 20,508 | $1.73 | $35,479 | 1,201,870 Direct | +1.74% | Acquired | -99.7% (price as of 2026-10-02) |
| March 4, 2021 | TCRT | A | 2,500 | · | · | 1,181,362 Direct | +0.21% | Acquired | (price as of 2026-10-02) |
| March 4, 2021 | TCRT | A | 18,750 | · | · | 18,750 Direct | · | Acquired | (price as of 2026-10-02) |
| March 4, 2021 | TCRT | A | 150,000 | · | · | 150,000 Direct | · | Acquired | (price as of 2026-10-02) |
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 3, 2025 | TCRT | Employee Stock Option (right to buy) | Common Stock | $5.00 | July 3, 2035 | 6,400 | Acquired |
| June 24, 2025 | TCRT | Series A-2 Convertible Preferred Stock | Common Stock | $4.49 | · | 600 | Acquired |
| April 11, 2025 | TCRT | Series A-1 Convertible Preferred Stock | Common Stock | $2.76 | · | 500 | Acquired |
| April 11, 2025 | TCRT | Series A-1 Convertible Preferred Stock | Common Stock | $2.76 | · | 500 | Acquired |
| June 6, 2024 | TCRT | Employee Stock Option (right to buy) | Common Stock | $1.03 | June 5, 2034 | 12,800 | Acquired |
| June 6, 2023 | TCRT | Employee Stock Option (right to buy) | Common Stock | $0.48 | June 5, 2033 | 100,000 | Acquired |
| June 22, 2022 | TCRT | Employee Stock Option (right to buy) | Common Stock | $0.82 | June 21, 2032 | 100,000 | Acquired |
| June 22, 2022 | TCRT | Employee Stock Option (right to buy) | Common Stock | $0.82 | June 21, 2032 | 100,000 | Acquired |
| March 4, 2021 | TCRT | Stock Option (right to buy) | Common Stock | $4.31 | March 3, 2031 | 18,750 | Acquired |
| March 4, 2021 | TCRT | Stock Option (right to buy) | Common Stock | $4.31 | March 3, 2031 | 150,000 | 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.