Astrotech ASTC Insider Ownership

NASDAQ ASTC

$4.97 +0.22 (+4.74%)

As of: Oct 20, 2026 · 3:59 PM EDT

Insider Holdings by Owner

587.78K Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

16.44%

▲+1.34% pp QoQ

Shares Held by Insiders

330.29K

filed for Sep 2026

▲+8.87% QoQ

Shares Outstanding

2.01Mn

2,009,050 shares

Direct Holdings

330.29K

Indirect: 0

Net Shares Traded (QoQ)

+26.90K

net buying in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 10, 2026

Across the past 12 months, Astrotech insiders reported no open-market purchases or sales.

In transactions other than open-market trades, Astrotech insiders received 21.45K shares in stock awards over the past 12 months.
Per Business Quant data, Astrotech insiders hold 330.29K shares in total based on their latest Form 4 filings, up 8.87% from 303.39K shares at the end of Q2 2026.
By type of ownership, ASTC insiders hold all of their 330.29K shares directly.
Holdings in Astrotech stock are reported by 11 insiders, the officers, directors and 10% owners who have filed a Form 4 in the past two years.
ASTC's largest insider holders by reported holdings are Thomas Boone Pickens III (CEO, 181.38K shares), Tom Wilkinson (Director, 32.25K shares) and Thomas Wiley Wilkinson (Director, 23.86K shares).
Of the shares held by ASTC insiders, 54.92% belong to Thomas Boone Pickens III.
Institutional investors held 8.56% of Astrotech stock at the end of Q2 2026, while the latest Form 4 filings of its insiders account for about 16.44%; other investors, including the public, hold roughly 75.00%.
Over the trailing 12 months, 7 insiders reported transactions in ASTC stock across 25 Form 4 filings.
Insider figures for ASTC include Form 4 filings through October 2, 2026.

Form 4 Holdings

Insiders Holding ASTC

Insiders 15

Shares held 587.78K

Of outstanding 29.26%

#	Insider	Position	Direct	Indirect	Total	Share of Insiders	Last Filed
1	Braden Michael Leonard	TenPercentOwner	0	220,388	220,388	37.5%	02 Dec, 2022
2	Thomas Boone Iii Pickens	Ceo	181,385	0	181,385	30.9%	16 May, 2025
3	Tom Wilkinson	Director	32,254	0	32,254	5.5%	02 Oct, 2026
4	Thomas Wiley Wilkinson	Director	23,862	0	23,862	4.1%	15 May, 2025
5	Robert N Mcfarland	Director	22,292	0	22,292	3.8%	02 Oct, 2026
6	Eric Stober	Cfo	21,127	0	21,127	3.6%	02 Oct, 2026
7	James Frank Becker	Director	16,121	0	16,121	2.7%	29 May, 2024
8	Daniel T Jr Russler	Director	14,904	0	14,904	2.5%	19 Mar, 2024
9	Charles Arch Winn	Director	14,431	0	14,431	2.5%	02 Oct, 2026
10	John William Halinski	Director	13,542	0	13,542	2.3%	02 Oct, 2026
11	Jaime Hinojosa	Cfo	7,881	0	7,881	1.3%	24 May, 2024
12	Ronald W Cantwell	Director	6,077	0	6,077	1.0%	18 Apr, 2022
13	Jennifer Canas	Chief Financial Officer	5,250	0	5,250	0.9%	04 Jun, 2025
14	Nihanth Badugu	Chief Operating Officer	5,000	0	5,000	0.9%	08 Sep, 2026
15	Matthew Kreps	Director	3,264	0	3,264	0.6%	02 Oct, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

246 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
30 Sep, 2026	Robert N Mcfarland	Director	Acquired A	1,331	$0.00	$0	22,292	Direct
30 Sep, 2026	John William Halinski	Director	Acquired A	1,331	$0.00	$0	13,542	Direct
30 Sep, 2026	Tom Wilkinson	Director	Acquired A	1,331	$0.00	$0	32,254	Direct
30 Sep, 2026	Charles Arch Winn	Director	Acquired A	1,331	$0.00	$0	14,431	Direct
30 Sep, 2026	Eric Stober	Director	Acquired A	1,473	$0.00	$0	21,127	Direct
30 Sep, 2026	Matthew Kreps	Director	Acquired A	1,114	$0.00	$0	3,264	Direct
09 Jul, 2026	Robert N Mcfarland	Director	Acquired A	1,055	$0.00	$0	20,961	Direct
22 Jul, 2026	Nihanth Badugu	Chief Operating Officer	Acquired A	5,000	$0.00	$0	5,000	Direct
16 Jul, 2026	John William Halinski	Director	Acquired A	2,150	$0.00	$0	12,211	Direct
01 Sep, 2026	Charles Arch Winn	Director	Acquired A	2,150	$0.00	$0	13,100	Direct
16 Jul, 2026	Eric Stober	Director	Acquired A	2,150	$0.00	$0	19,654	Direct
22 Jul, 2026	Nihanth Badugu	Chief Operating Officer	Acquired A	5,000	$0.00	$0	5,000	Direct
09 Jul, 2026	Robert N Mcfarland	Director	Acquired A	1,055	$0.00	$0	11,205	Direct
09 Jul, 2026	John William Halinski	Director	Acquired A	1,055	$0.00	$0	12,211	Direct
09 Jul, 2026	Charles Arch Winn	Director	Acquired A	1,055	$0.00	$0	10,950	Direct
09 Jul, 2026	Eric Stober	Director	Acquired A	1,167	$0.00	$0	19,654	Direct
09 Jul, 2026	Tom Wilkinson	Director	Acquired A	1,055	$0.00	$0	30,923	Direct
16 Jul, 2026	John William Halinski	Director	Acquired A	2,150	$0.00	$0	11,156	Direct
16 Jul, 2026	Eric Stober	Director	Acquired A	2,150	$0.00	$0	18,487	Direct
16 Jul, 2026	Matthew Kreps	Director	Acquired A	2,150	$0.00	$0	2,150	Direct

Showing 1 to 20 of 246 transactions