ISCO

International Stem Cell CORPCIK 1355790 ☆ Sign in to watch Congress trades

Open-mkt buys · 90d

—

0 trades · 0 insiders

Open-mkt sales · 90d

$21.0K

2 trades · 1 insiders

Net · 90d

$-21.0K

Insiders on file

AI insights for ISCO PRO

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AI insights for ISCO

Insider sentiment score with a plain-English explanation, conviction score on every buy, and how the stock performed 30 and 90 days after past insider buys.

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Daily buy vs sell · 90 days

■ Open-market buys (P) ■ Open-market sales (S) · daily dollar value by transaction date

Insiders

Insider	Role	Trades	Bought	Sold	Last trade
MAIER PAUL V	Director	13	$0	$21.0K	2026-09-16
Don Wright	Director	9	$0	$0	2026-06-11
Stephens Jennifer	Acting Chief Financial Officer	1	$0	$0	2017-08-25
CASAMENTO CHARLES J	Director	5	$0	$0	2015-12-31
Semechkin Ruslan	Vice President	8	$5.10M	$0	2015-11-23
Ebrahimi Mahnaz	Chief Financial Officer	1	$0	$0	2015-09-14
BERGLUND JAMES H	Director	3	$0	$0	2013-06-20
Craw John Simon	Executive Vice President	3	$0	$0	2013-04-09
Nguyen Linh T	Chief Financial Officer	2	$0	$0	2013-04-09
X-Master, Inc.	10% Owner	2	$0	$0	2013-01-22
Semechkin Andrey	Chief Executive Officer	5	$7.00M	$0	2013-01-22

Trade history

Insider	Role	Code	Trade	Filed	Shares	Price	Value	Owned after
MAIER PAUL V	Director	D To issuer deriv	2026-09-16	2026-09-17	30,000	—	$0	0	SEC↗
MAIER PAUL V	Director	D To issuer deriv	2026-09-16	2026-09-17	30,000	—	$0	0	SEC↗
MAIER PAUL V	Director	S Sale	2026-09-11	2026-09-15	32,802	$0.32	$10.5K	0	SEC↗
MAIER PAUL V	Director	S Sale	2026-09-11	2026-09-15	32,802	$0.32	$10.5K	0	SEC↗
MAIER PAUL V	Director	A Award deriv	2026-06-11	2026-06-23	182,584	—	$0	182,584	SEC↗
MAIER PAUL V	Director	A Award deriv	2026-06-11	2026-06-23	30,000	—	$0	30,000	SEC↗
Don Wright	Director	A Award deriv	2026-06-11	2026-06-23	30,000	—	$0	30,000	SEC↗
Don Wright	Director	A Award deriv	2026-06-11	2026-06-23	182,584	—	$0	182,584	SEC↗
Don Wright	Director	A Award deriv	2025-06-17	2025-06-20	532,786	—	$0	532,786	SEC↗
Don Wright	Director	A Award deriv	2025-06-17	2025-06-20	30,000	—	$0	30,000	SEC↗
Stephens Jennifer	Acting Chief Financial Offic	A Award deriv	2017-08-25	2017-08-30	70,000	$1.25	$87.5K	150,000	SEC↗
CASAMENTO CHARLES J	Director	A Award	2015-12-31	2015-12-31	2,403	—	$0	10,103	SEC↗
MAIER PAUL V	Director	A Award	2015-12-31	2015-12-31	2,403	—	$0	9,024	SEC↗
Don Wright	Director	A Award	2015-12-31	2015-12-31	2,403	—	$0	10,603	SEC↗
Kern Russell	Chief Scientific Officer	C Conversion deriv	2015-11-23	2015-11-25	120	—	$0	0	SEC↗
Kern Russell	Chief Scientific Officer	C Conversion	2015-11-23	2015-11-25	66,916	$1.79	$119.8K	129,601	SEC↗
CASAMENTO CHARLES J	Director	A Award	2015-09-30	2015-10-02	2,011	—	$0	7,700	SEC↗
MAIER PAUL V	Director	A Award	2015-09-30	2015-10-02	2,011	—	$0	6,621	SEC↗
Don Wright	Director	A Award	2015-09-30	2015-10-02	2,011	—	$0	8,200	SEC↗
Ebrahimi Mahnaz	Chief Financial Officer	A Award deriv	2015-09-14	2015-09-16	65,000	—	$0	65,000	SEC↗
CASAMENTO CHARLES J	Director	A Award	2015-06-30	2015-07-02	181,767	—	$0	853,344	SEC↗
MAIER PAUL V	Director	A Award	2015-06-30	2015-07-02	181,767	—	$0	691,449	SEC↗
MAIER PAUL V	Director	A Award	2015-04-03	2015-04-03	76,958	—	$0	409,736	SEC↗
Semechkin Ruslan	Chief Scientific Officer	P Buy	2014-08-06	2014-08-08	1,000,000	$0.10	$100.0K	5,124,497	SEC↗
Semechkin Ruslan	Chief Scientific Officer	M Exercise deriv	2014-06-11	2014-06-13	1,334,334	—	$0	0	SEC↗
Semechkin Ruslan	Chief Scientific Officer	M Exercise	2014-06-11	2014-06-13	1,601,200	—	$0	3,424,497	SEC↗
CASAMENTO CHARLES J	Director	A Award	2014-03-21	2014-03-25	162,500	—	$0	405,000	SEC↗
MAIER PAUL V	Director	A Award	2014-03-21	2014-03-25	162,500	—	$0	243,125	SEC↗
Don Wright	Director	A Award	2014-03-21	2014-03-25	162,500	—	$0	455,000	SEC↗
BERGLUND JAMES H	Director	A Award	2013-06-20	2013-06-21	40,000	—	$0	392,500	SEC↗
CASAMENTO CHARLES J	Director	A Award	2013-06-20	2013-06-21	40,000	—	$0	242,500	SEC↗
MAIER PAUL V	Director	A Award	2013-06-20	2013-06-21	40,000	—	$0	242,500	SEC↗
Don Wright	Director	A Award	2013-06-20	2013-06-21	65,000	—	$0	292,500	SEC↗
Craw John Simon	Executive Vice President	A Award deriv	2013-04-09	2013-04-11	75,000	—	$0	75,000	SEC↗
Nguyen Linh T	Chief Financial Officer	A Award deriv	2013-04-09	2013-04-11	75,000	—	$0	75,000	SEC↗
Semechkin Ruslan	Director, 10% Owner	A Award deriv	2013-04-09	2013-04-11	70,000	—	$0	70,000	SEC↗
BERGLUND JAMES H	Director	A Award	2013-01-25	2013-01-29	162,500	—	$0	352,500	SEC↗
MAIER PAUL V	Director	A Award	2013-01-25	2013-01-29	162,500	—	$0	202,500	SEC↗
Don Wright	Director	A Award	2013-01-25	2013-01-29	162,500	—	$0	227,500	SEC↗
Semechkin Andrey	Chief Executive Officer	P Buy deriv	2013-01-22	2013-01-24	5,000,000	—	$0	5,000,000	SEC↗
Semechkin Andrey	Chief Executive Officer	C Conversion deriv	2013-01-22	2013-01-24	2,000,000	—	$0	0	SEC↗
X-Master, Inc.	10% Owner	C Conversion deriv	2013-01-22	2013-01-24	2,000,000	—	$0	0	SEC↗
Craw John Simon	Executive Vice President	P Buy deriv	2013-01-22	2013-01-24	62,500	—	$0	62,500	SEC↗
Semechkin Andrey	Chief Executive Officer	P Buy	2013-01-22	2013-01-24	10,000,000	$0.20	$2.00M	12,037,800	SEC↗
Semechkin Andrey	Chief Executive Officer	C Conversion	2013-01-22	2013-01-24	8,000,000	$0.25	$2.00M	8,000,000	SEC↗
X-Master, Inc.	10% Owner	C Conversion	2013-01-22	2013-01-24	8,000,000	$0.25	$2.00M	8,000,000	SEC↗
Craw John Simon	Executive Vice President	P Buy	2013-01-22	2013-01-24	125,000	—	$0	145,000	SEC↗
BERGLUND JAMES H	Director	A Award	2012-07-24	2012-07-26	150,000	—	$0	190,000	SEC↗
Semechkin Ruslan	Vice President	P Buy deriv	2012-03-09	2012-03-12	5,000,000	$1.00	$5.00M	5,000,000	SEC↗
Semechkin Andrei	Chief Executive Officer	P Buy deriv	2012-03-09	2012-03-12	5,000,000	$1.00	$5.00M	5,000,000	SEC↗
Nguyen Linh T	Chief Financial Officer	A Award deriv	2012-01-13	2012-01-17	50,000	—	$0	50,000	SEC↗
Semechkin Ruslan	Pres & CEO of LSC	A Award deriv	2012-01-13	2012-01-17	100,000	—	$0	100,000	SEC↗