Derrell Porter
CIK 1706400 · View on SEC EDGAR ↗
First SEC filing: June 5, 2026 · Latest: June 5, 2026
On this page
Insider at
Insider transactions
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 | S | 13,040 | $2.33 | $30,383 | 35,500 Direct | -26.86% | Disposed | 21.2% (price as of 2026-08-19) |
| June 16, 2026 | ABOS | S | 12,800 | $2.33 | $29,824 | 35,500 Direct | -26.50% | Disposed | 21.2% (price as of 2026-08-19) |
| June 15, 2026 | ABOS | S | 6,460 | $2.35 | $15,181 | 48,300 Direct | -11.80% | Disposed | 20.2% (price as of 2026-08-19) |
| Feb. 15, 2019 | ATRA | S 10b5-1 | 5,909 | $40.00 | $236,360 | 21,688 Direct | -21.41% | Disposed | -99.1% (price as of 2026-08-19) |
| May 15, 2018 | ATRA | S 10b5-1 | 16,334 | $45.02 | $735,357 | 12,500 Direct | -56.65% | Disposed | -99.2% (price as of 2026-08-19) |
| May 8, 2018 | ATRA | S 10b5-1 | 1,544 | $40.15 | $61,992 | 12,500 Direct | -10.99% | Disposed | -99.1% (price as of 2026-08-19) |
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 |
|---|---|---|---|---|---|---|---|
| June 17, 2026 | ABOS | Stock Option (right to buy) | Common Stock (13,040) | $1.07 | June 4, 2035 | 13,040 | Disposed |
| June 15, 2026 | ABOS | Stock Option (right to buy) | Common Stock (6,460) | $1.07 | June 4, 2035 | 6,460 | Disposed |
| May 25, 2023 | PASG | Director Stock Option (Right to Buy) | Common Stock (24,000) | $1.00 | May 24, 2033 | 24,000 | Acquired |
| Jan. 4, 2023 | ABOS | Stock Option Grant (right to buy) | Common Stock (50,000) | $5.46 | Jan. 4, 2033 | 50,000 | Acquired |
| May 26, 2022 | PASG | Director Stock Option (Right to Buy) | Common Stock (24,000) | $1.76 | May 25, 2032 | 24,000 | Acquired |
| May 27, 2021 | PASG | Director Stock Option (Right to Buy) | Common Stock (33,836) | $13.83 | May 26, 2031 | 33,836 | Acquired |
| Feb. 15, 2019 | ATRA | Employee Stock Option (Right to Buy) | Common Stock (4,000) | $14.30 | May 10, 2024 | 4,000 | Disposed |
| Feb. 6, 2019 | ATRA | Employee Stock Option (Right to Buy) | Common Stock (24,625) | $38.47 | Feb. 5, 2029 | 24,625 | Acquired |
| May 15, 2018 | ATRA | Employee Stock Option (Right to Buy) | Common Stock (16,334) | $14.30 | May 10, 2024 | 16,334 | Disposed |
| Feb. 6, 2018 | ATRA | Employee Stock Option (Right to Buy) | Common Stock (25,000) | $35.80 | Feb. 6, 2025 | 25,000 | Acquired |
| May 10, 2017 | ATRA | Employee Stock Option (Right to Buy) | Common Stock (130,000) | $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.