Form 4 for OABI OmniAb, Inc.
Accepted 2026-02-18 00:00:00 ET · period of report 2026-02-18 · accession 0001462354-26-000002 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-02-18 | 2026-02-18 | OABI | GUSTAFSON KURT A | CFO, Executive VP, Fin | S - Sale+OE | $1.71 | -9,301 | 268.9K | -3% | -$15.9K |
| D | 2026-02-18 | 2026-02-18 | OABI | GUSTAFSON KURT A | CFO, Executive VP, Fin | M - OptEx | $0.00 | +18.8K | 278.2K | +7% | $0 |
| DM | 2026-02-18 | 2026-02-18 | OABI | GUSTAFSON KURT A | CFO, Executive VP, Fin | A - Grant | $0.00 | +660.0K | 600.0K | New | $0 |
| D | 2026-02-18 | 2026-02-18 | OABI | GUSTAFSON KURT A | CFO, Executive VP, Fin | M - OptEx | $0.00 | -18.8K | 64.6K | -22% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-02-18 | S | D | 9,301 | $1.71 | 268,851 | D | — | — | (F3) Represents the number of shares required to be sold by the reporting person to cover tax withholding obligations in connection with the vesting of RSUs. These sales are mandated by the Issuer's election under its equity incentive plans to require the satisfaction of a tax withholding obligation to be funded by a "sell-to-cover" transaction and do not represent discretionary trades by the reporting person. (F4) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $1.68 to $1.73. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. |
| 2 | Common | Common Stock | 2026-02-18 | M | A | 18,750 | $0.00 | 278,152 | D | — | — | (F1) Represents the vesting of an RSU grant which occurs in three substantially equal annual installments beginning on February 18, 2026 (F2) Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock. |
| 3 | Derivative | Restricted Stock Units | 2026-02-18 | A | A | 60,000 | $0.00 | 124,584 | D | $0.00 · — to — | 60,000 Common Stock | (F2) Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock. (F5) The RSU grant vests in three substantially equal annual installments beginning on February 18, 2027. |
| 4 | Derivative | Restricted Stock Units | 2026-02-18 | M | D | 18,750 | $0.00 | 64,584 | D | $0.00 · — to — | 18,750 Common Stock | (F2) Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock. (F1) Represents the vesting of an RSU grant which occurs in three substantially equal annual installments beginning on February 18, 2026 |
| 5 | Derivative | Stock Option | 2026-02-18 | A | A | 600,000 | $0.00 | 600,000 | D | $1.71 · — to 2036-02-18 | 600,000 Common Stock | (F6) The Stock Option grant vests and is exercisable as to 12.5% of the underlying shares 6 months after the grant date, and in 42 substantially equal monthly installments thereafter. |