Astrotech Corporation (ASTC)
Nasdaq: ASTC · Laboratory Analytical Instruments · Austin, TX · filing with the SEC since 1996
Who owns Astrotech Corporation
As filed with the SECHolders of 5% or more
0
No Schedule 13D or 13G naming this company is on file.
Directors and officers
8
report now, of 21 people on the record since 2006. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 0 named at left.
Holders of 5% or moreshare of the class, as filed
Skylark Partners I, LP
SCHEDULE 13G/A · filed Jul 1, 2026 · Common Stock, $0.001 par value · reported falling below 5%, from 5.4% in Dec 23, 2025
BML Investment Partners, L.P.
SCHEDULE 13D/A · filed Oct 7, 2025 · Common Stock, $0.001 par value per share · reported falling below 5%
What ASTC reports owning in othersstakes of 5% or more, and other ties
3 subsidiaries in 1 country, from the list filed with the 10-K filed Sep 25, 2026.
Insider tradesForm 4
0sales
0purchases
0sales on a scheduled plan
0people selling
$0sold, in dollars
$0bought, in dollars
Open-market trades on Form 4 from Oct 2, 2025 to Oct 2, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2024 runs to Oct 2, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window1 of 23 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Leonard Braden Michael | 10% owner | 2 | $1.6M | 0 | 0 | $0 |