ASTC Institutional Ownership & Shareholders
ASTROTECH Corp (ASTC) is currently held by 19 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $1.72M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Jane Street Group, Llc is currently the largest disclosed institutional shareholder of ASTC tracked by InsiderSet, reporting ownership valued at approximately $597,583 in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $266,871.13, representing an estimated loss of -55.34% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 100% of the total disclosed ASTC value among the investors covered in this analysis. Major shareholders include Jane Street Group, Llc, Vanguard Capital Management Llc, Blackrock, Inc., and several other long-term asset managers with concentrated positions in ASTROTECH Corp (ASTC).
This page ranks the largest institutional ASTC shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
19
Total Reported Value
$1.72M
Largest Holder
Jane Street Group, Llc
Largest Position
$597,583
Insider Transactions (90d)
12
Latest Filing Quarter
Q2 2026
New Institutional Positions
26
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Jane Street Group, Llc | 0.00% | 54,799 | $597,583 | $266,871 | -$330,712 | -55.34% | |
| Vanguard Capital Management Llc | 0.00% | 22,356 | $243,792 | $108,874 | -$134,918 | -55.34% | |
| Blackrock, Inc. | 0.00% | 20,188 | $220,150 | $98,316 | -$121,834 | -55.34% | |
| Geode Capital Management, Llc | 0.00% | 15,533 | $169,423 | $75,646 | -$93,777 | -55.35% | |
| J. Safra Sarasin Holding Ag | 0.00% | 27,300 | $140,049 | $132,951 | -$7,098 | -5.07% | |
| State Street Corp | 0.00% | 11,068 | $120,697 | $53,901 | -$66,796 | -55.34% | |
| Scs Capital Management Llc | 0.00% | 11,000 | $119,955 | $53,570 | -$66,385 | -55.34% | |
| Vanguard Fiduciary Trust Co | 0.00% | 7,956 | $86,760 | $38,746 | -$48,014 | -55.34% | |
| Jones Financial Companies Lllp | 0.00% | 886 | $8,249 | $4,315 | -$3,934 | -47.69% | |
| Tower Research Capital Llc (Trc) | 0.00% | 667 | $7,274 | $3,248 | -$4,026 | -55.34% | |
| Morgan Stanley | 0.00% | 77 | $840 | $375 | -$465 | -55.36% | |
| Ubs Group Ag | 0.00% | 64 | $698 | $312 | -$386 | -55.35% | |
| Fny Investment Advisers, Llc | 0.06% | 34,000 | $255 | $165,580 | +$165,325 | +64833.33% | |
| Federation Des Caisses Desjardins Du Quebec | 0.00% | 23 | $251 | $112 | -$139 | -55.37% | |
| Wells Fargo & Company/Mn | 0.00% | 20 | $218 | $97 | -$121 | -55.32% | |
| Harbour Investments, Inc. | 0.00% | 11 | $120 | $54 | -$66 | -55.36% | |
| Sbi Securities Co., Ltd. | 0.00% | 10 | $109 | $49 | -$60 | -55.32% | |
| Caitong International Asset Management Co., Ltd | 0.00% | 6 | $65 | $29 | -$36 | -55.05% | |
| Huntington National Bank | 0.00% | 1 | $1 | $5 | +$4 | +387.00% |
Frequently asked questions about ASTC
Who are the largest institutional holders of ASTC?
The largest institutional holders of ASTC reported in the latest SEC Form 13F filings include Jane Street Group, Llc, Vanguard Capital Management Llc, Blackrock, Inc., Geode Capital Management, Llc, and J. Safra Sarasin Holding Ag. InsiderSet ranks institutional holders by their latest reported ASTC position.
What is ASTC institutional ownership?
This page tracks ASTC positions reported by institutional investment managers through SEC Form 13F. ASTROTECH Corp (ASTC) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own ASTC?
InsiderSet currently tracks 19 institutional managers reporting ASTC holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of ASTC shareholders.
How much ASTC stock do institutions own?
Institutional investment managers disclosed approximately $1.72M in ASTC holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was ASTC institutional ownership last updated?
The latest ASTC institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional ASTC holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its ASTC position after the reporting date.
Are institutions buying or selling ASTC?
Institutional buying and selling can be analyzed by comparing ASTC positions across consecutive 13F reporting periods. InsiderSet's ASTC Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View ASTC ownership changes.
How has ASTC institutional ownership changed over time?
InsiderSet tracks ASTC institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.