Erik Ostrowski
Insider
First SEC filing: Jan. 4, 2019 · Latest: Jan. 4, 2019
Insider at
Insider transactions
0 buys (P)
2 sells (S)
Net: $-110,763
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 29, 2026 | AKBA | S | 56,019 | $1.11 | $62,181 | 616,616 Direct | -8.33% | Disposed | -22.1% (price as of 2026-10-02) |
| Feb. 2, 2026 | AKBA | S 10b5-1 | 34,951 | $1.39 | $48,582 | 672,635 Direct | -4.94% | Disposed | -37.8% (price as of 2026-10-02) |
| Jan. 30, 2026 | AKBA | A | 204,000 | · | · | 707,586 Direct | +40.51% | Acquired | (price as of 2026-10-02) |
| Jan. 30, 2026 | AKBA | A | 320,000 | · | · | 320,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 30, 2025 | AKBA | S 10b5-1 | 41,314 | $3.67 | $151,622 | 503,586 Direct | -7.58% | Disposed | -76.4% (price as of 2026-10-02) |
| Jan. 31, 2025 | AKBA | A | 194,900 | · | · | 544,900 Direct | +55.69% | Acquired | (price as of 2026-10-02) |
| Jan. 31, 2025 | AKBA | A | 292,300 | · | · | 292,300 Direct | · | Acquired | (price as of 2026-10-02) |
| June 28, 2024 | AKBA | A | 350,000 | · | · | 350,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 28, 2024 | AKBA | A | 500,000 | · | · | 500,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 5, 2024 | TECX | F | 13,099 | $1.20 | $15,719 | 29,285 Direct | -30.91% | Disposed | 56.5% (price as of 2026-10-02) |
| Feb. 1, 2024 | TECX | M | 40,084 | · | · | 120,249 Direct | -25.00% | Disposed | (price as of 2026-10-02) |
| Feb. 1, 2024 | TECX | M | 40,084 | · | · | 42,384 Direct | +1742.78% | Acquired | (price as of 2026-10-02) |
| July 1, 2023 | TECX | A | 70,000 | · | · | 70,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 8, 2023 | TECX | A | 160,333 | · | · | 160,333 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 8, 2022 | TECX | A | 221,000 | · | · | 221,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 2, 2022 | TECX | A | 145,000 | · | · | 145,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 2, 2022 | TECX | A | 170,000 | · | · | 170,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 10, 2021 | TECX | A | 125,000 | · | · | 125,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 4, 2021 | TECX | A | 119,100 | · | · | 119,100 Direct | · | Acquired | (price as of 2026-10-02) |
| March 4, 2020 | TECX | A | 100,900 | · | · | 100,900 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 2, 2019 | TECX | A | 186,000 | · | · | 186,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 2, 2019 | TECX | A | 2,300 | · | · | 2,300 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 |
|---|---|---|---|---|---|---|---|
| Jan. 30, 2026 | AKBA | Stock Option (Right to buy) | Common Stock | $1.41 | Jan. 30, 2036 | 320,000 | Acquired |
| Jan. 31, 2025 | AKBA | Stock Option (Right to buy) | Common Stock | $2.24 | Jan. 31, 2035 | 292,300 | Acquired |
| June 28, 2024 | AKBA | Stock Option (Right to buy) | Common Stock | $1.02 | June 28, 2034 | 500,000 | Acquired |
| Feb. 1, 2024 | TECX | Restricted Stock Unit | Common Stock | $0.00 | Feb. 1, 2027 | 40,084 | Disposed |
| July 1, 2023 | TECX | Restricted Stock Unit | Common Stock | $0.00 | July 1, 2027 | 70,000 | Acquired |
| Feb. 8, 2023 | TECX | Restricted Stock Unit | Common Stock | $0.00 | Feb. 1, 2027 | 160,333 | Acquired |
| Dec. 8, 2022 | TECX | Stock Option (Right to Buy) | Common Stock | $0.79 | Dec. 7, 2032 | 221,000 | Acquired |
| Feb. 2, 2022 | TECX | Stock Option (Right to Buy) | Common Stock | $1.84 | Feb. 1, 2032 | 145,000 | Acquired |
| Feb. 2, 2022 | TECX | Stock Option (Right to Buy) | Common Stock | $1.84 | Feb. 1, 2032 | 170,000 | Acquired |
| June 10, 2021 | TECX | Stock Option (Right to Buy) | Common Stock | $9.63 | June 9, 2031 | 125,000 | Acquired |
| Feb. 4, 2021 | TECX | Stock Option (Right to Buy) | Common Stock | $16.02 | Feb. 3, 2031 | 119,100 | Acquired |
| March 4, 2020 | TECX | Stock Option (Right to Buy) | Common Stock | $21.44 | March 3, 2030 | 100,900 | Acquired |
| Jan. 2, 2019 | TECX | Stock Option (Right to Buy) | Common Stock | $15.65 | Jan. 1, 2029 | 186,000 | 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 |
|---|---|---|---|---|---|---|---|---|
| 2025 | $552,919 | · | · | · | $223,074 | · | $16,877 | $1,792,361 |
| 2024 | $284,414 | · | · | · | $127,825 | · | $573 | $1,215,122 |
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2024 | $254,125 | · | · | · | $829,250 | · | $9,883 | $1,093,258 |
| 2022 | $460,000 | $299,000 | · | · | $174,800 | · | $13,487 | $1,352,093 |
| 2021 | $439,254 | · | · | $2,150,945 | $105,421 | · | $9,987 | $2,705,607 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.