Astrotech
ASTC · NASDAQ
$4.87+$0.30 (+6.56%)TodayMarket closed ·
Prev close $4.57
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%
Information on this page is provided for informational purposes only and is not a recommendation to buy, sell or hold any security. Investing involves risk, including possible loss of principal. Market data is delayed at least 15 minutes and is provided without warranty. Analyst ratings, price targets and company data come from third-party sources. Past performance does not guarantee future results.