SEC Form 4 · accession 0001683168-26-005073
International Stem Cell CORP · ISCO
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Paul V Maier
Director
Period of report
Jun 11, 2026
Accepted (ET)
Jun 23, 2026 · 8:30 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0001355790
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 | $0.17 | Jun 11, 2026 | A | 30,000 | A | — | Jun 11, 2036 | Common Stock | 30,000 | 30,000 | D |
| Stock Option (Right to Buy)F2 | $0.178 | Jun 11, 2026 | A | 182,584 | A | — | Jun 11, 2036 | Common Stock | 182,584 | 182,584 | D |
Explanation of responses
- F1The shares underlying such option shall vest on the earlier of (a) June 11, 2027, or (b) the date of the next annual meeting of the Issuer's stockholders occurring after the date of grant.
- F2The shares underlying such option shall vest in equal quarterly increments through June 11, 2027, with the first increment vesting on September 11, 2026.