Astrotech
ASTC · NASDAQ
$4.87+$0.125 (+2.63%)TodayMarket closed ·
Prev close $4.75
Who owns ASTC
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 22.7% of ASTC’s shares.
- Pickens (Thomas Boone III)10.0%
- Jane Street Capital, L.L.C.3.0%
- J. Safra Sarasin Holding AG1.5%
- Wilkinson (Thomas Wiley)1.3%
- Next 6 largest institutions6.7%
- All other shareholders77.3%
| Holder | Shares | % of shares |
|---|---|---|
| Pickens (Thomas Boone III) | 180.90K | 10.05% |
| Jane Street Capital, L.L.C. | 54.80K | 3.04% |
| J. Safra Sarasin Holding AG | 27.30K | 1.52% |
| Wilkinson (Thomas Wiley) | 23.98K | 1.33% |
| Winn (Charles Arch) | 22.66K | 1.26% |
| Vanguard Capital Management, LLC | 22.36K | 1.24% |
| McFarland (Robert N) | 20.96K | 1.16% |
| BlackRock Institutional Trust Company, N.A. | 20.19K | 1.12% |
| Stober (Eric N) | 19.65K | 1.09% |
| Geode Capital Management, L.L.C. | 15.53K | 0.86% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Extended Market Index Fund | 22.36K | 1.24% |
| Fidelity Extended Market Index Fund | 7.52K | 0.42% |
| Themes Transatlantic Defense ETF | 5.55K | 0.31% |
| Fidelity Total Market Index Fund | 4.01K | 0.22% |
| Fidelity Series Total Market Index Fund | 1.98K | 0.11% |
Insider trades
Form 4 filings by officers, directors and large holders
Insiders made no open-market buys or sales of ASTC in the last 6 months.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Kreps Matthew | Award | 1.11K | — |
| Winn Charles Arch | Award | 1.33K | — |
| Halinski John William | Award | 1.33K | — |
| Stober Eric | Award | 1.47K | — |
| MCFARLAND ROBERT N | Award | 1.33K | — |
| Wilkinson Tom | Award | 1.33K | — |
| Winn Charles Arch | Award | 2.15K | — |
| Winn Charles Arch | Award | 2.15K | — |
| Badugu Nihanth | Award | 5.00K | — |
| Badugu Nihanth | Award | 5.00K | — |
Short interest
Settled Sep 30, 2026
- Shares short
- 88.32K
- Days to cover
- 2.33
- % of shares outstanding
- 4.91%
- Average daily volume
- 37.98K
- Change since last report
- −13.3%
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