Derrell Porter
Insider
First SEC filing: June 5, 2026 · Latest: June 5, 2026
Insider at
Insider transactions
0 buys (P)
3 sells (S)
Net: $-75,388
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 |
|---|---|---|---|---|---|---|---|---|---|
| June 17, 2026 | ABOS | M | 13,040 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 17, 2026 | ABOS | S | 13,040 | $2.33 | $30,383 | 35,500 Direct | -26.86% | Disposed | -12.4% (price as of 2026-10-02) |
| June 17, 2026 | ABOS | M | 13,040 | $1.07 | $13,953 | 48,540 Direct | +36.73% | Acquired | 90.7% (price as of 2026-10-02) |
| June 16, 2026 | ABOS | S | 12,800 | $2.33 | $29,824 | 35,500 Direct | -26.50% | Disposed | -12.4% (price as of 2026-10-02) |
| June 15, 2026 | ABOS | M | 6,460 | · | · | 13,040 Direct | -33.13% | Disposed | (price as of 2026-10-02) |
| June 15, 2026 | ABOS | S | 6,460 | $2.35 | $15,181 | 48,300 Direct | -11.80% | Disposed | -13.2% (price as of 2026-10-02) |
| June 15, 2026 | ABOS | M | 6,460 | $1.07 | $6,912 | 54,760 Direct | +13.37% | Acquired | 90.7% (price as of 2026-10-02) |
| June 3, 2026 | ABOS | A | 35,500 | · | · | 48,300 Direct | +277.34% | Acquired | (price as of 2026-10-02) |
| June 3, 2026 | ABOS | A | 53,250 | · | · | 53,250 Direct | · | Acquired | (price as of 2026-10-02) |
| May 19, 2026 | PASG | A | 10,539 | · | · | 10,539 Direct | · | Acquired | (price as of 2026-10-02) |
| June 4, 2025 | ABOS | A | 12,800 | · | · | 12,800 Direct | · | Acquired | (price as of 2026-10-02) |
| June 4, 2025 | ABOS | A | 19,500 | · | · | 19,500 Direct | · | Acquired | (price as of 2026-10-02) |
| May 28, 2025 | PASG | A | 201,857 | · | · | 201,857 Direct | · | Acquired | (price as of 2026-10-02) |
| June 10, 2024 | ABOS | A | 25,000 | · | · | 25,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 21, 2024 | PASG | A | 47,693 | · | · | 47,693 Direct | · | Acquired | (price as of 2026-10-02) |
| June 6, 2023 | ABOS | A | 25,000 | · | · | 25,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 25, 2023 | PASG | A | 24,000 | · | · | 24,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 4, 2023 | ABOS | A | 50,000 | · | · | 50,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 26, 2022 | PASG | A | 24,000 | · | · | 24,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 27, 2021 | PASG | A | 33,836 | · | · | 33,836 Direct | · | Acquired | (price as of 2026-10-02) |
| March 26, 2019 | ATRA | A | 10,000 | · | · | 31,688 Direct | +46.11% | Acquired | (price as of 2026-10-02) |
| Feb. 15, 2019 | ATRA | M 10b5-1 | 4,000 | · | · | 109,666 Direct | -3.52% | Disposed | (price as of 2026-10-02) |
| Feb. 15, 2019 | ATRA | S 10b5-1 | 5,909 | $40.00 | $236,360 | 21,688 Direct | -21.41% | Disposed | -99.1% (price as of 2026-10-02) |
| Feb. 15, 2019 | ATRA | M 10b5-1 | 4,000 | $14.30 | $57,200 | 27,597 Direct | +16.95% | Acquired | -97.3% (price as of 2026-10-02) |
| Feb. 6, 2019 | ATRA | A | 24,625 | · | · | 24,625 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 6, 2019 | ATRA | A | 12,313 | · | · | 23,597 Direct | -34.29% | Disposed | (price as of 2026-10-02) |
| Feb. 6, 2019 | ATRA | F | 1,216 | $38.47 | $46,780 | 11,284 Direct | -9.73% | Disposed | -99.0% (price as of 2026-10-02) |
| May 15, 2018 | ATRA | M 10b5-1 | 16,334 | $14.30 | $233,576 | 28,834 Direct | +130.67% | Acquired | -97.3% (price as of 2026-10-02) |
| May 15, 2018 | ATRA | S 10b5-1 | 16,334 | $45.02 | $735,357 | 12,500 Direct | -56.65% | Disposed | -99.2% (price as of 2026-10-02) |
| May 15, 2018 | ATRA | M 10b5-1 | 16,334 | · | · | 113,666 Direct | -12.56% | Disposed | (price as of 2026-10-02) |
| May 8, 2018 | ATRA | S 10b5-1 | 1,544 | $40.15 | $61,992 | 12,500 Direct | -10.99% | Disposed | -99.1% (price as of 2026-10-02) |
| Feb. 6, 2018 | ATRA | A | 25,000 | · | · | 25,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 6, 2018 | ATRA | A | 12,500 | · | · | 14,044 Direct | +809.59% | Acquired | (price as of 2026-10-02) |
| May 10, 2017 | ATRA | A | 130,000 | · | · | 130,000 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 |
|---|---|---|---|---|---|---|---|
| June 17, 2026 | ABOS | Stock Option (right to buy) | Common Stock | $1.07 | June 4, 2035 | 13,040 | Disposed |
| June 15, 2026 | ABOS | Stock Option (right to buy) | Common Stock | $1.07 | June 4, 2035 | 6,460 | Disposed |
| June 3, 2026 | ABOS | Stock Option (right to buy) | Common Stock | $2.29 | June 3, 2036 | 53,250 | Acquired |
| May 19, 2026 | PASG | Director Stock Option (right to buy) | Common Stock | $5.08 | May 19, 2036 | 10,539 | Acquired |
| June 4, 2025 | ABOS | Stock Option (right to buy) | Common Stock | $1.07 | June 4, 2035 | 19,500 | Acquired |
| May 28, 2025 | PASG | Director Stock Option (right to buy) | Common Stock | $0.36 | May 28, 2035 | 201,857 | Acquired |
| June 10, 2024 | ABOS | Stock Option (right to buy) | Common Stock | $2.62 | June 9, 2034 | 25,000 | Acquired |
| May 21, 2024 | PASG | Director Stock Option (right to buy) | Common Stock | $1.28 | May 21, 2034 | 47,693 | Acquired |
| June 6, 2023 | ABOS | Stock Option (right to buy) | Common Stock | $5.20 | June 5, 2033 | 25,000 | Acquired |
| May 25, 2023 | PASG | Director Stock Option (Right to Buy) | Common Stock | $1.00 | May 24, 2033 | 24,000 | Acquired |
| Jan. 4, 2023 | ABOS | Stock Option Grant (right to buy) | Common Stock | $5.46 | Jan. 4, 2033 | 50,000 | Acquired |
| May 26, 2022 | PASG | Director Stock Option (Right to Buy) | Common Stock | $1.76 | May 25, 2032 | 24,000 | Acquired |
| May 27, 2021 | PASG | Director Stock Option (Right to Buy) | Common Stock | $13.83 | May 26, 2031 | 33,836 | Acquired |
| Feb. 15, 2019 | ATRA | Employee Stock Option (Right to Buy) | Common Stock | $14.30 | May 10, 2024 | 4,000 | Disposed |
| Feb. 6, 2019 | ATRA | Employee Stock Option (Right to Buy) | Common Stock | $38.47 | Feb. 5, 2029 | 24,625 | Acquired |
| May 15, 2018 | ATRA | Employee Stock Option (Right to Buy) | Common Stock | $14.30 | May 10, 2024 | 16,334 | Disposed |
| Feb. 6, 2018 | ATRA | Employee Stock Option (Right to Buy) | Common Stock | $35.80 | Feb. 6, 2025 | 25,000 | Acquired |
| May 10, 2017 | ATRA | Employee Stock Option (Right to Buy) | Common Stock | $14.30 | May 10, 2024 | 130,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2017 | $235,846 | $221,611 | · | $1,052,246 | · | · | $689 | $1,510,392 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.