ASTROTECH Corp (ASTC) Institutional Ownership

Institutions by Trading Activity

1,676,000Shares Outstanding

113,553Shares held by institutions

$1,034,468Value of institutional holdings

6.78%Institutional ownership %

42.31%Shares Changed QoQ

13No. of institutional investors

ASTROTECH Corp (NASDAQ:ASTC) appears in 13 institutional 13F filings for the quarter ending December 2025.

These investors held 6.8% of outstanding shares in December 2025, down from 18.8% in September 2025.
Their total shares held in ASTC increased 42.31% quarter over quarter, and separately, investors owning Astrotech decreased 27.78% from a year ago.
Among the 13 funds, 5 bought more Astrotech shares, 2 sold down, and 6 held their ground.
Combined, these investors held 113.55K shares in ASTC for December 2025, up by 33.76K shares quarter on quarter, and down 251.56K shares year over year.
As of December 31, 2025, the biggest holder of Astrotech is J. Safra Sarasin Holding AG at 27.3K shares, representing 1.63% of shares outstanding.
The biggest buyers of Astrotech for the quarter ending December 2025 included J. Safra Sarasin Holding AG (27.3K), T3 Companies, LLC (13.39K), VANGUARD CAPITAL MANAGEMENT LLC (9.2K), VANGUARD FIDUCIARY TRUST CO (4.34K), Caitong International Asset Management Co., Ltd (4.04K).
Leading sellers of Astrotech shares for the quarter ending December 2025 were UBS Group AG (703).
Per Business Quant data, the top 10 holders of Astrotech for the quarter ending December 2025 are J. Safra Sarasin Holding AG (27.3K), BlackRock, Inc. (20.19K), GEODE CAPITAL MANAGEMENT, LLC (19.35K), T3 Companies, LLC (13.39K), SCS Capital Management LLC (11.76K), VANGUARD CAPITAL MANAGEMENT LLC (9.2K), VANGUARD FIDUCIARY TRUST CO (4.34K), Caitong International Asset Management Co., Ltd (4.04K), Tower Research Capital LLC (TRC) (2.26K), Vanguard Global Advisers, LLC (911).

113,553 Total Shares Held

Rows:

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
J. Safra Sarasin Holding AG	31 Mar, 2026	27,300	27,300	0.00%	$140,049.00
BlackRock, Inc.	31 Mar, 2026	20,188	0	0.00%	$105,583.00
GEODE CAPITAL MANAGEMENT, LLC	31 Mar, 2026	19,347	567	3.02%	$101,200.00
T3 Companies, LLC	31 Mar, 2026	13,393	13,393	0.00%	$70,045.00
SCS Capital Management LLC	31 Mar, 2026	11,761	0	0.00%	$61,510.00
VANGUARD CAPITAL MANAGEMENT LLC	31 Mar, 2026	9,205	9,205	0.00%	$48,142.00
VANGUARD FIDUCIARY TRUST CO	31 Mar, 2026	4,339	4,339	0.00%	$22,693.00
Caitong International Asset Management Co., Ltd	31 Mar, 2026	4,037	4,037	0.00%	$21,114.00
Tower Research Capital LLC (TRC)	31 Mar, 2026	2,260	1,746	339.69%	$11,820.00
Vanguard Global Advisers, LLC	31 Mar, 2026	911	911	0.00%	$4,765.00
UBS Group AG	31 Mar, 2026	200	-703	-77.85%	$1,046.00
Federation des caisses Desjardins du Quebec	31 Mar, 2026	23	0	0.00%	$120.00
Wells Fargo & Company/Mn	31 Mar, 2026	20	0	0.00%	$104.00
SBI Securities Co., Ltd.	31 Mar, 2026	13	10	333.33%	$68.00
HARBOUR INVESTMENTS, INC.	31 Mar, 2026	8	8	0.00%	$42.00