Insider · CIK 0001182615

Paul V Maier

Files at: ISCO, ETON, AIXC, MBVX, SEEL. On EDGAR ↗

Period1M 3M 6M 1Y 2Y All datashares as filed — not split-adjusted

Open-market buys & salesbuys $42k · 2sales $3.0M · 3net −$3.0M

Reported trades — common stock

Trade	Reported (ET)	Company	Shares	Avg price	Total	Owned after	Δ stake	Flags
Sep 11, 2026 SForm 4 →	Sep 15, 4:12 pm EDT	International Stem Cell CORPISCO	32,802	$0.32	$10,497	0	−100%
Aug 28, 2026 SForm 4/A →	Aug 31, 4:06 pm EDT	Eton Pharmaceuticals, Inc.ETON	50,000	$59.07	$2,953,572	59,745	−45.6%
Aug 28, 2026 MForm 4/A →	Aug 31, 4:06 pm EDT	Eton Pharmaceuticals, Inc.ETON	62,500	$4.49	$280,375	72,245	—
Aug 28, 2026 SForm 4 →	Aug 28, 4:51 pm EDT	Eton Pharmaceuticals, Inc.ETON	50,000	$59.07	$2,953,572	59,745	−45.6%	amended
Aug 28, 2026 MForm 4 →	Aug 28, 4:51 pm EDT	Eton Pharmaceuticals, Inc.ETON	50,000	$3.78	$189,000	109,745	—	amended
Nov 15, 2018 PForm 4 →	Nov 15, 7:13 pm EST	Eton Pharmaceuticals, Inc.ETON	5,000	$6.00	$30,000	59,745	+9.13%	plan?
Apr 2, 2018 MForm 4/A →	Apr 4, 6:13 am EDT	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	513	—	—	23,063	—	plan?
Apr 2, 2018 MForm 4 →	Apr 3, 6:26 pm EDT	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	513	—	—	23,462	—	plan? amended
Jan 23, 2018 SForm 4 →	Jan 24, 7:09 pm EST	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	35,448	$0.8548	$30,300	68,314	−34.2%	plan?
Jan 8, 2018 MForm 4 →	Jan 12, 5:22 pm EST	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	100,000	—	—	100,000	—	plan? late
Apr 2, 2017 MForm 4 →	Apr 4, 7:22 pm EDT	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	1,543	—	—	3,762	—	plan?
Mar 31, 2017 AForm 4 →	Apr 3, 1:14 pm EDT	International Stem Cell CORPISCO.OB	4,642	—	—	33,060	—	plan?
Jan 5, 2017 AForm 4 →	Jan 6, 7:30 pm EST	APRICUS BIOSCIENCES, INC.APRI	11,250	—	—	13,854	—	plan?
Dec 30, 2016 AForm 4 →	Dec 30, 2:59 pm EST	International Stem Cell CORPISCO.OB	7,523	—	—	28,418	—	plan?
Oct 13, 2016 AForm 4 →	Oct 14, 3:40 pm EDT	International Stem Cell CORPISCO.OB	1,334	—	—	20,895	—	plan?
Sep 30, 2016 AForm 4 →	Oct 3, 4:33 pm EDT	APRICUS BIOSCIENCES, INC.APRI	10,715	$0.3383	$3,625	26,039	—	plan?
Sep 30, 2016 AForm 4 →	Sep 30, 4:53 pm EDT	International Stem Cell CORPISCO.OB	4,391	—	—	19,561	—	plan?
Jun 30, 2016 AForm 4 →	Jul 1, 8:27 pm EDT	APRICUS BIOSCIENCES, INC.APRI	9,074	$0.3995	$3,625	15,324	—	plan?
Jun 30, 2016 AForm 4 →	Jun 30, 5:55 pm EDT	International Stem Cell CORPISCO.OB	4,042	—	—	15,170	—	plan?
Apr 5, 2016 AForm 4 →	Apr 7, 4:50 pm EDT	APRICUS BIOSCIENCES, INC.APRI	6,250	$0.58	$3,625	6,250	—	plan?
Apr 4, 2016 MForm 4 →	Apr 5, 5:56 pm EDT	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	11,417	—	—	16,417	—	plan?
Mar 31, 2016 AForm 4 →	Apr 4, 5:07 pm EDT	International Stem Cell CORPISCO.OB	2,104	—	—	11,128	—	plan?
Dec 31, 2015 AForm 4 →	Dec 31, 2:40 pm EST	International Stem Cell CORPISCO	2,403	—	—	9,024	—	plan?
Sep 30, 2015 AForm 4 →	Oct 2, 11:04 am EDT	International Stem Cell CORPISCO	2,011	—	—	6,621	—	plan?
Jun 30, 2015 AForm 4 →	Jul 2, 1:12 pm EDT	International Stem Cell CORPISCO	181,767	—	—	691,449	—	plan?
May 29, 2015 PForm 4 →	Jun 2, 3:46 pm EDT	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	5,000	$2.30	$11,500	5,000	—	plan?
Apr 8, 2015 AForm 4 →	Apr 8, 8:45 pm EDT	International Stem Cell CORPISCO.OB	99,946	—	—	509,682	—	plan?
Apr 3, 2015 AForm 4 →	Apr 3, 4:00 pm EDT	International Stem Cell CORPISCO	76,958	—	—	409,736	—	plan?

Reported trades — derivatives (options, RSUs, warrants)

Trade	Reported (ET)	Company	Shares	Avg price	Total	Owned after	Δ stake	Flags
Sep 16, 2026 DForm 4 →	Sep 17, 8:46 pm EDT	International Stem Cell CORPISCO	30,000	—	—	0	—
Aug 28, 2026 MForm 4/A →	Aug 31, 4:06 pm EDT	Eton Pharmaceuticals, Inc.ETON	62,500	—	—	0	—
Aug 28, 2026 MForm 4 →	Aug 28, 4:51 pm EDT	Eton Pharmaceuticals, Inc.ETON	50,000	—	—	0	—	amended
Jul 31, 2026 AForm 4 →	Aug 4, 4:57 pm EDT	Eton Pharmaceuticals, Inc.ETON	10,000	—	—	10,000	—
Jun 11, 2026 AForm 4 →	Jun 23, 8:30 pm EDT	International Stem Cell CORPISCO	212,584	—	—	182,584	—	late
Feb 20, 2019 AForm 4 →	Mar 8, 4:34 pm EST	Eton Pharmaceuticals, Inc.ETON	12,500	—	—	12,500	—	late
Feb 6, 2019 AForm 4 →	Feb 8, 4:13 pm EST	RITTER PHARMACEUTICALS INCRTTR	15,000	—	—	15,000	—
Jun 21, 2018 AForm 4 →	Jun 25, 4:18 pm EDT	International Stem Cell CORPISCO.OB	77,117	—	—	30,000	—
Apr 2, 2018 MForm 4/A →	Apr 4, 6:13 am EDT	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	513	—	—	0	—
Apr 2, 2018 MForm 4 →	Apr 3, 6:26 pm EDT	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	513	—	—	0	—	amended
Mar 30, 2018 AForm 4 →	Apr 3, 6:36 pm EDT	International Stem Cell CORPISCO.OB	11,054	—	—	11,054	—
Feb 21, 2018 AForm 4 →	Feb 23, 3:43 pm EST	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	35,000	—	—	35,000	—
Jan 23, 2018 AForm 4 →	Jan 25, 9:23 pm EST	RITTER PHARMACEUTICALS INCRTTR	30,000	—	—	30,000	—
Jan 8, 2018 MForm 4 →	Jan 12, 5:22 pm EST	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	100,000	—	—	1,543	—	late
Jan 4, 2018 AForm 4 →	Jan 8, 4:02 pm EST	APRICUS BIOSCIENCES, INC.APRI	35,000	—	—	35,000	—
Dec 29, 2017 AForm 4 →	Jan 2, 2018, 5:18 pm EST	International Stem Cell CORPISCO.OB	10,350	—	—	10,350	—
Oct 2, 2017 AForm 4 →	Oct 4, 6:23 am EDT	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	75,790	—	—	75,790	—
Sep 29, 2017 AForm 4 →	Oct 2, 7:49 pm EDT	International Stem Cell CORPISCO.OB	8,830	—	—	8,830	—
Sep 15, 2017 AForm 4 →	Sep 18, 5:20 pm EDT	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	24,210	—	—	24,210	—
Jun 30, 2017 AForm 4 →	Jul 5, 5:48 pm EDT	International Stem Cell CORPISCO.OB	14,254	—	—	14,254	—
Jun 12, 2017 AForm 4 →	Jun 14, 4:07 pm EDT	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	20,000	$1.57	$31,400	20,000	—
May 31, 2017 AForm 4 →	Jun 2, 1:20 pm EDT	International Stem Cell CORPISCO.OB	30,000	—	—	30,000	—
May 19, 2017 AForm 4 →	May 23, 8:12 pm EDT	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	50,000	$1.80	$90,000	50,000	—
Apr 2, 2017 MForm 4 →	Apr 4, 7:22 pm EDT	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	1,543	—	—	1,543	—
Jan 1, 2017 AForm 4 →	Jan 3, 9:02 pm EST	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	4,100	$3.38	$13,858	4,100	—
Nov 29, 2016 AForm 4 →	Nov 30, 6:42 pm EST	RITTER PHARMACEUTICALS INCRTTR	7,000	—	—	7,000	—
Aug 29, 2016 AForm 4 →	Aug 30, 6:28 pm EDT	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	4,100	$5.00	$20,500	4,100	—
Jun 29, 2016 AForm 4 →	Jul 28, 5:44 pm EDT	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	35,000	$0.55	$19,250	35,000	—	late
May 17, 2016 AForm 4 →	May 18, 4:17 pm EDT	International Stem Cell CORPISCO.OB	30,000	—	—	30,000	—
Apr 4, 2016 MForm 4 →	Apr 5, 5:56 pm EDT	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	11,417	—	—	22,833	—
Jan 4, 2016 AForm 4 →	Jan 5, 1:58 pm EST	APRICUS BIOSCIENCES, INC.APRI	25,000	—	—	25,000	—
Oct 13, 2015 AForm 4 →	Oct 15, 1:42 pm EDT	RITTER PHARMACEUTICALS INCRTTR	10,000	—	—	10,000	—
Aug 26, 2015 AForm 4 →	Aug 27, 3:40 pm EDT	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	35,000	$1.52	$53,200	35,000	—
Apr 2, 2015 AForm 4 →	Apr 3, 7:43 pm EDT	MABVAX THERAPEUTICS HOLDINGS, INC.MBVX	68,500	$2.30	$78,775	34,250	—
Jan 2, 2015 AForm 4 →	Jan 26, 4:16 pm EST	APRICUS BIOSCIENCES, INC.APRI	25,000	—	—	25,000	—	late