SEC Form 4 · accession 0002144074-26-000006
OmniAb, Inc. · OABIW
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Amechi Ekeke Nwachuku
Officer — Chief Operating Officer
Period of report
Aug 1, 2026
Accepted (ET)
Aug 3, 2026 · 4:06 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001846253
Table I — non-derivative securities
No Table I lines on this filing.
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stock Option (right to buy)F1 | $1.98 | Aug 1, 2026 | A | 800,000 | A | — | Aug 1, 2036 | Common Stock | 800,000 | 800,000 | D |
Explanation of responses
- F1The Stock Option grant vests and becomes exercisable as to 1/8 of the shares on the six-month anniversary of the grant date and as to 1/48 of the shares each month thereafter for 42 months, beginning on August 1, 2026, subject to the Reporting Person's continued service to the Issuer through each such vesting date.