Ostrowski Erik (CIK 1762507) reported 4 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-07-01). Recent activity: Sell AKBA (56,019 shares), Sell AKBA (34,951 shares), Buy AKBA (204,000 shares), Sell AKBA (41,314 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-01 | Akebia Therapeutics, Inc. (AKBA) | SVP, CFO, CBO & Treasurer | Sell | 56,019 | $62,181 |
| 2026-02-04 | Akebia Therapeutics, Inc. (AKBA) | SVP, CFO, CBO & Treasurer | Sell | 34,951 | $48,582 |
| 2026-02-03 | Akebia Therapeutics, Inc. (AKBA) | SVP, CFO, CBO & Treasurer | Buy | 204,000 | $0 |
| 2025-07-01 | Akebia Therapeutics, Inc. (AKBA) | SVP, CFO, CBO & Treasurer | Sell | 41,314 | $151,622 |
Source: SEC Form 4 filings · as of 2026-07-01