International Stem Cell CORP (ISCO)
Data as of , from SEC Form 4 filings.
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- Paul V. Maier - DirectorOpen-market sale$10K
- Paul V. Maier - DirectorDerivative30,000 sh
Wright Don - Director
About International Stem Cell CORP (ISCO)
International Stem Cell CORP is an SEC registrant, filing under CIK 0001355790, classified as pharmaceutical preparations. We track it alongside the rest of the Health Care sector.
ISCO Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 1 | 32,802 | $10K |
| Derivative transaction | 1 | 30,000 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
ISCO insider transactions (Form 4)
85 Form 4 filings on record, the earliest from Jun 17, 2025, newest first.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Paul V. Maier - Director | Derivative | Stock Options | 30,000 | $0.00 | - | |
| Paul V. Maier - Director | Open-market sale | Common Stock | 32,802 | $0.32 | $10K | |
| Wright Don - Director | Grant or award | Stock Option (Right to Buy) | 30,000 | $0.00 | - | |
| Wright Don - Director | Grant or award | Stock Option (Right to Buy) | 182,584 | $0.00 | - | |
| Paul V. Maier - Director | Grant or award | Stock Option (Right to Buy) | 30,000 | $0.00 | - | |
| Paul V. Maier - Director | Grant or award | Stock Option (Right to Buy) | 182,584 | $0.00 | - | |
| Paul V. Maier - Director | Grant or award | Stock Option (Right to Buy) | 30,000 | $0.00 | - | |
| Paul V. Maier - Director | Grant or award | Stock Option (Right to Buy) | 532,786 | $0.00 | - |
Recent ISCO Form 144 notices of proposed sale
1An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| MAIER PAUL V | Director | 32,802 | $12K | View on EDGAR |
ISCO insider trading FAQ
What is the latest insider trade for ISCO?
International Stem Cell CORP (ISCO) had 2 insider filings in the last 90 days, with the most recent on 2026-09-18. The full record for ISCO runs to 5 Form 4 filings, the earliest from 2025-06-17. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying ISCO stock?
No insider purchases of ISCO were filed in the last 90 days.
How many insiders are selling ISCO stock?
1 insider sale of ISCO was filed in the last 90 days, totaling $10K.
Where can I see ISCO SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects ISCO Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
More Health Care companies with insider activity
Recent insider filings
5The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Paul V. Maier view on EDGAR
- - Paul V. Maier view on EDGAR
- - Wright Don view on EDGAR
- - Paul V. Maier view on EDGAR
- - Paul V. Maier view on EDGAR
Related companies with recent insider activity
Learn more
- Insider selling: signal or noise?
- Why most insider sales are routine, and the few patterns worth a second look.
- Form 144 vs Form 4
- A Form 144 announces a planned sale; the Form 4 reports it after it happens.
- Insider activity in Health Care
- Where ISCO's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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