ASTC · ASTROTECH Corp
$7.10
-0.34 (-4.57%)
At close · Aug 25
Market Cap
$13.26M
Shares
1.76M
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 18
Total Value: $1,876,119
Total Shares: 171,965
Institutional Ownership Trend
26 quarters
Holder Concentration
Across 18 13F filers · Δ vs Mar 31, 2026Top Holder
31.9%
+7.7 pts
Top 5
81.5%
+0.1 pts
Top 10
99.9%
+0.1 pts
HHI
1,760
Moderately concentrated+217
Quarterly Activity
vs Mar 31, 2026
New
4
Increased
3
Decreased
6
Sold Out
2
Unchanged
5
Holder count:
+2
Institutional value:
+217.4%
Shares held:
+52.2%
Top Buyers
vs Mar 31, 2026| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mega VANGUARD CAPITAL MANAGEMENT LLC | +13,151 | 22,356 | |
| Mega VANGUARD FIDUCIARY TRUST CO | +3,617 | 7,956 | |
| Mid HARBOUR INVESTMENTS, INC. | +3 | 11 |
Top Sellers
vs Mar 31, 2026| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Small Caitong International Asset Management Co., Ltd | −4,031 | 6 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC | −3,814 | 15,533 | |
| Mid Tower Research Capital LLC (TRC) | −1,593 | 667 | |
| Mid SCS Capital Management LLC | −761 | 11,000 | |
| Mega UBS Group AG | −136 | 64 |
Top New Positions
vs Mar 31, 2026| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mega JANE STREET GROUP, LLC | 54,799 | $597,856 | |
| Mega STATE STREET CORP | 11,068 | $120,751 | |
| Large JONES FINANCIAL COMPANIES LLLP | 886 | $9,666 | |
| Mega MORGAN STANLEY | 77 | $840 |
Top Sold-Out Positions
vs Mar 31, 2026| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mid T3 Companies, LLC | 13,393 | $70,045 | |
| Mega Vanguard Global Advisers, LLC | 911 | $4,764 |
Key facts
CIK
1001907
CUSIP
046484309
13F (30d)
17 filings
17 filers
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Investor relations