Paul V Maier insider trades: International Stem Cell (ISCO) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Paul reports to the SEC
and 6 more companies
Open-market buys and sales
29 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Sep 11, 2026 | ISCO | ↓ Sell | 32,802 | $0.32 | $10K | Through family Trust dated 4/21/2000 | Sep 15, 2026 (4d) |
| Aug 28, 2026 | ETON | ↓ Sell | 50,000 | $59.07 | $3.0M | Direct | Aug 31, 2026 (3d) |
| Aug 28, 2026 | ETON | ↓ Sell | 50,000 | $59.07 | $3.0M | Direct | Aug 28, 2026 (0d) |
| Apr 18, 2019 | ISCO.OB | ↓ Sell | 1,350 | $1.25 | $2K | Direct | Apr 22, 2019 (4d) |
| Nov 15, 2018 | ETON | ↑ Buy | 5,000 | $6.00 | $30K | Direct | Nov 15, 2018 (0d) |
| Jan 24, 2018 | MBVX | ↓ Sell | 35,448 | $0.85 | $30K | Direct | Jan 24, 2018 (0d) |
| May 29, 2015 | MBVX | ↑ Buy | 5,000 | $2.30 | $12K | Direct | Jun 2, 2015 (4d) |
| Aug 1, 2012 | SQNM | ↑ Buy | 10,000 | $2.86 | $29K | by Trust | Aug 2, 2012 (1d) |
| Mar 28, 2011 | ISCO.OB | ↓ Sell10b5-1 | 10,000 | $1.36 | $14K | Through Family Trust dated 4/21/2000 | Mar 29, 2011 (1d) |
| Mar 25, 2011 | ISCO.OB | ↓ Sell10b5-1 | 20,000 | $1.40 | $28K | Through Family Trust dated 4/21/2000 | Mar 25, 2011 (0d) |
| Mar 21, 2011 | ISCO.OB | ↓ Sell10b5-1 | 10,000 | $1.27 | $13K | Through Family Trust dated 4/21/2000 | Mar 23, 2011 (2d) |
| Feb 24, 2011 | ISCO.OB | ↓ Sell10b5-1 | 20,000 | $1.42 | $28K | Through Family Trust dated 4/21/2000 | Feb 24, 2011 (0d) |
| Feb 22, 2011 | ISCO.OB | ↓ Sell10b5-1 | 20,000 | $1.55 | $31K | Through Family Trust dated 4/21/2000 | Feb 23, 2011 (1d) |
| Jan 21, 2011 | ISCO.OB | ↓ Sell10b5-1 | 30,000 | $1.81 | $54K | Through family Trust dated 4/21/2000 | Jan 28, 2011 (7d) |
| Jan 18, 2011 | ISCO.OB | ↓ Sell10b5-1 | 10,000 | $1.95 | $20K | Through Family Trust dated 4/21/2000 | Jan 28, 2011 (10d) |
| Dec 21, 2010 | ISCO.OB | ↓ Sell10b5-1 | 20,000 | $2.16 | $43K | Through family Trust dated 4/21/2000 | Dec 22, 2010 (1d) |
| Dec 17, 2010 | ISCO.OB | ↓ Sell10b5-1 | 20,000 | $1.90 | $38K | Through family Trust dated 4/21/2000 | Dec 17, 2010 (0d) |
| Nov 18, 2010 | ISCO.OB | ↓ Sell10b5-1 | 20,000 | $1.65 | $33K | Through family Trust dated 4/21/2000 | Nov 19, 2010 (1d) |
| Nov 16, 2010 | ISCO.OB | ↓ Sell10b5-1 | 20,000 | $1.42 | $28K | Through family Trust dated 4/21/2000 | Nov 16, 2010 (0d) |
| Oct 20, 2010 | ISCO.OB | ↓ Sell10b5-1 | 10,000 | $1.44 | $14K | Through family Trust dated 4/21/2000 | Oct 22, 2010 (2d) |
| Oct 19, 2010 | ISCO.OB | ↓ Sell10b5-1 | 30,000 | $1.31 | $39K | Through family Trust dated 4/21/2000 | Oct 19, 2010 (0d) |
| Jun 18, 2008 | HNAB | ↑ Buy | 7,000 | $0.75 | $5K | Direct | Jun 18, 2008 (0d) |
| Jul 20, 2007 | ISCO | ↑ Buy | 2,000 | $1.70 | $3K | Direct | Jul 24, 2007 (4d) |
| Nov 20, 2006 | LGND | ↓ Sell | 27,016 | $11.43 | $309K | Direct | Nov 22, 2006 (2d) |
| Nov 17, 2006 | LGND | ↓ Sell | 39,042 | $11.35 | $443K | Direct | Nov 21, 2006 (4d) |
| Nov 17, 2006 | LGND | ↓ Sell | 38,148 | $11.47 | $437K | Direct | Nov 21, 2006 (4d) |
| Nov 16, 2006 | LGND | ↓ Sell | 31,256 | $11.37 | $355K | Direct | Nov 20, 2006 (4d) |
| Nov 16, 2006 | LGND | ↓ Sell | 14,921 | $11.26 | $168K | Direct | Nov 20, 2006 (4d) |
| Nov 16, 2006 | LGND | ↓ Sell | 8,595 | $11.41 | $98K | by Spouse | Nov 20, 2006 (4d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
About Paul V Maier's insider trades
Paul V Maier is a director at International Stem Cell (ISCO). Since Nov 16, 2006, Paul has reported 5 open-market purchases worth $79K and 24 sales worth $8.1M on SEC Form 4. In the last 12 months: 3 sales ($5.9M).
13 sales (5% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.
Their filings also include grants and awards (96 filings), option exercises (19 filings), shares returned to the company (5 filings), shares withheld for taxes (1 filing). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every ISCO insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.