Company · CIK 0001001907 · SIC 3826 — Laboratory Analytical Instruments · Nasdaq

ASTROTECH Corp · ASTC

Insider activity reported against this company. All insider holders · On EDGAR ↗

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

Open-market buys & salesbuys $27k · 2sales $0 · 0net $27k

Reported at this company — common stock

Trade	Reported (ET)	Insider	Shares	Avg price	Total	Owned after	Δ stake	Flags
Sep 1, 2026 AForm 4/A →	Sep 8, 9:05 pm EDT	Charles Arch WinnDirector	2,150	—	—	13,100	—
Sep 1, 2026 AForm 4 →	Sep 1, 4:25 pm EDT	Charles Arch WinnDirector	2,150	—	—	13,100	—
Jul 22, 2026 AForm 4/A →	Sep 8, 9:11 pm EDT	Nihanth BaduguChief Operating Officer	5,000	—	—	5,000	—
Jul 22, 2026 AForm 4 →	Jul 23, 4:10 pm EDT	Nihanth BaduguChief Operating Officer	5,000	—	—	5,000	—	amended
Jul 16, 2026 AForm 4/A →	Sep 8, 9:15 pm EDT	Eric StoberDirector	2,150	—	—	19,654	—
Jul 16, 2026 AForm 4/A →	Sep 8, 9:09 pm EDT	John William HalinskiDirector	2,150	—	—	12,211	—
Jul 16, 2026 AForm 4 →	Jul 20, 4:19 pm EDT	Matthew KrepsDirector	2,150	—	—	2,150	—
Jul 16, 2026 AForm 4 →	Jul 20, 4:19 pm EDT	John William HalinskiDirector	2,150	—	—	11,156	—	amended
Jul 16, 2026 AForm 4 →	Jul 20, 4:18 pm EDT	Eric StoberDirector	2,150	—	—	18,487	—	amended
Jul 9, 2026 AForm 4/A →	Sep 8, 9:02 pm EDT	Robert N McFarlandDirector	1,055	—	—	20,961	—
Jul 9, 2026 AForm 4 →	Jul 21, 4:42 pm EDT	John William HalinskiDirector	1,055	—	—	12,211	—	late
Jul 9, 2026 AForm 4 →	Jul 21, 4:40 pm EDT	Charles Arch WinnDirector	1,055	—	—	10,950	—	late
Jul 9, 2026 AForm 4 →	Jul 21, 4:38 pm EDT	Robert N McFarlandDirector	1,055	—	—	11,205	—	late amended
Jul 9, 2026 AForm 4 →	Jul 21, 4:36 pm EDT	Eric StoberDirector	1,167	—	—	19,654	—	late
Jul 9, 2026 AForm 4 →	Jul 21, 4:34 pm EDT	Tom WilkinsonDirector	1,055	—	—	30,923	—	late
Apr 14, 2026 AForm 4/A →	Sep 8, 9:06 pm EDT	John William HalinskiDirector	6,006	—	—	9,006	—
Mar 15, 2024 PForm 4/A →	Sep 8, 2026, 9:13 pm EDT	Robert N McFarlandDirector	1,185	$8.50	$10,073	10,900	+12.2%
Dec 17, 2018 AForm 4 →	Dec 18, 5:17 pm EST	Thomas Wiley WilkinsonDirector	15,000	$3.40	$51,000	20,952	—	plan?
Dec 17, 2018 AForm 4 →	Dec 18, 5:14 pm EST	Mark AdamsDirector	5,000	$3.40	$17,000	113,003	—	plan?
Dec 17, 2018 AForm 4 →	Dec 18, 5:10 pm EST	Rajesh K MellacheruvuChief Operating Officer	35,000	$3.40	$119,000	73,199	—	plan?
Dec 17, 2018 AForm 4 →	Dec 18, 4:14 pm EST	Eric StoberCFO	10,000	$3.40	$34,000	103,295	—	plan?
Dec 17, 2018 AForm 4 →	Dec 18, 3:47 pm EST	Ronald W CantwellDirector	10,000	$3.40	$34,000	19,999	—	plan?
Dec 17, 2018 AForm 4 →	Dec 18, 3:43 pm EST	Daniel T Russler Jr.Director	5,000	$3.40	$17,000	20,800	—	plan?
Dec 7, 2018 ACForm 4 →	Dec 19, 10:59 am EST	Thomas Boone Pickens IIIChief Executive Officer, Director, 10% Owner	901,950	$2.39	$2,156,333	1,598,351	—	plan? late
Dec 7, 2018 PForm 4 →	Dec 11, 12:33 pm EST	Thomas Wiley WilkinsonDirector	5,952	$2.84	$16,913	5,952	—	plan?
Apr 9, 2018 FForm 4 →	Apr 10, 4:22 pm EDT	Rajesh K MellacheruvuChief Operating Officer	1,141	$2.53	$2,887	38,199	—	plan?
Dec 9, 2016 DForm 4 →	Dec 13, 3:43 pm EST	Thomas Boone Pickens IIIChief Executive Officer, Director, 10% Owner	601,852	$1.62	$975,000	3,482,010	—	plan?
Dec 9, 2016 DForm 4 →	Dec 13, 3:16 pm EST	William F ReaddyDirector	80	$1.60	$128	195,104	—	plan?
Dec 8, 2016 DForm 4 →	Dec 12, 11:35 am EST	William F ReaddyDirector	400	$1.60	$640	195,184	—	plan?
Dec 1, 2016 DForm 4 →	Dec 5, 2:44 pm EST	William F ReaddyDirector	133	$1.65	$219	195,584	—	plan?
Nov 30, 2016 DForm 4 →	Dec 2, 3:45 pm EST	William F ReaddyDirector	1,576	$1.69	$2,660	195,717	—	plan?
Nov 29, 2016 DForm 4 →	Nov 30, 6:32 pm EST	William F ReaddyDirector	1,807	$1.66	$2,994	197,293	—	plan?
Nov 28, 2016 DForm 4 →	Nov 30, 3:21 pm EST	William F ReaddyDirector	4,900	$1.66	$8,143	199,100	—	plan?
Sep 7, 2016 AForm 4 →	Sep 9, 3:28 pm EDT	Ronald W CantwellDirector	25,000	$2.01	$50,250	50,000	—	plan?
Sep 7, 2016 AForm 4 →	Sep 9, 3:11 pm EDT	Michael R. HumphreyDirector	25,000	$2.01	$50,250	50,000	—	plan?
Aug 12, 2016 AFForm 4 →	Aug 16, 3:14 pm EDT	Eric StoberChief Financial Officer	357,500	$1.60	$572,000	466,476	—	plan?
Aug 12, 2016 AFForm 4 →	Aug 16, 3:08 pm EDT	Rajesh K MellacheruvuChief Operating Officer	320,741	$1.60	$513,186	153,363	—	plan?
Apr 7, 2016 FForm 5 →	Jul 14, 1:52 pm EDT	Rajesh K MellacheruvuChief Operating Officer	7,075	$2.02	$14,292	14,592	—	plan?
Mar 11, 2016 AForm 4 →	Mar 15, 2:20 pm EDT	Sha-Chelle ManningDirector	2,250	$2.26	$5,085	106,710	—	plan?
Mar 11, 2016 DForm 4 →	Mar 15, 2:18 pm EDT	Thomas Boone Pickens IIIChief Executive Officer, Director, 10% Owner	51,544	$2.15	$110,702	4,083,862	—	plan?
Jun 18, 2015 AForm 4 →	Jun 22, 12:11 pm EDT	Ronald W CantwellDirector	25,000	—	—	25,000	—	plan?
Jun 18, 2015 AForm 4 →	Jun 22, 12:08 pm EDT	Michael R. HumphreyDirector	25,000	—	—	25,000	—	plan?
Apr 7, 2015 AForm 4 →	Apr 9, 4:25 pm EDT	Rajesh K MellacheruvuChief Operating Officer	65,000	—	—	65,000	—	plan?
Apr 7, 2015 ADForm 4 →	Apr 9, 4:25 pm EDT	Sha-Chelle ManningDirector	160,540	$3.20	$145,728	104,460	—	plan?
Apr 7, 2015 AForm 4 →	Apr 9, 4:24 pm EDT	Mark AdamsDirector	90,000	—	—	540,019	—	plan?
Apr 7, 2015 ADForm 4 →	Apr 9, 4:23 pm EDT	John A OlivaDirector	124,200	$3.20	$109,440	225,800	—	plan?
Apr 7, 2015 ADForm 4 →	Apr 9, 4:23 pm EDT	Daniel T Russler Jr.Director	126,000	$3.20	$115,200	79,000	—	plan?
Apr 7, 2015 ADForm 4 →	Apr 9, 4:22 pm EDT	William F ReaddyDirector	126,000	$3.20	$115,200	204,000	—	plan?
Apr 7, 2015 AFForm 4 →	Apr 9, 4:22 pm EDT	Eric StoberChief Financial Officer	523,500	$3.20	$475,200	311,800	—	plan?
Apr 7, 2015 AFForm 4 →	Apr 9, 4:22 pm EDT	Thomas Boone Pickens IIIChief Executive Officer, Director, 10% Owner	928,340	$3.20	$842,688	4,135,406	—	plan?

Reported at this company — derivatives (options, RSUs, warrants)

Trade	Reported (ET)	Insider	Shares	Avg price	Total	Owned after	Δ stake	Flags
Dec 7, 2018 CForm 4 →	Dec 19, 10:59 am EST	Thomas Boone Pickens IIIChief Executive Officer, Director, 10% Owner	866,950	$2.35	$2,037,333	0	—	late
Oct 9, 2018 AForm 4 →	Oct 11, 3:33 pm EDT	Thomas Boone Pickens IIIChief Executive Officer, Director, 10% Owner	866,950	$2.35	$2,037,333	866,950	—
Feb 12, 2018 ADForm 4 →	Feb 14, 12:18 pm EST	Rajesh K MellacheruvuChief Operating Officer	16,000	—	—	67,671	—
May 9, 2017 AForm 4 →	May 11, 3:54 pm EDT	Mark AdamsDirector	25,000	—	—	130,000	—
May 9, 2017 AForm 4 →	May 11, 3:52 pm EDT	Ronald W CantwellDirector	40,000	—	—	40,000	—
May 9, 2017 AForm 4 →	May 11, 3:50 pm EDT	Michael R. HumphreyDirector	40,000	—	—	40,000	—
May 9, 2017 AForm 4 →	May 11, 3:48 pm EDT	Sha-Chelle ManningDirector	25,000	—	—	85,000	—
May 9, 2017 AForm 4 →	May 11, 3:46 pm EDT	Rajesh K MellacheruvuChief Operating Officer	128,359	—	—	338,359	—
May 9, 2017 AForm 4 →	May 11, 3:44 pm EDT	Thomas Boone Pickens IIIChief Executive Officer, Director, 10% Owner	200,000	—	—	412,500	—
May 9, 2017 AForm 4 →	May 11, 3:42 pm EDT	Daniel T Russler Jr.Director	25,000	—	—	85,000	—
May 9, 2017 AForm 4 →	May 11, 3:39 pm EDT	Eric StoberChief Financial Officer	100,000	—	—	124,000	—
Feb 17, 2016 AForm 4 →	Feb 19, 5:25 pm EST	Rajesh K MellacheruvuChief Operating Officer	170,000	—	—	170,000	—
Apr 7, 2015 AForm 4 →	Apr 9, 4:25 pm EDT	Rajesh K MellacheruvuChief Operating Officer	40,000	—	—	40,000	—