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ASTROTECH Corp

ASTC
Exchange
Nasdaq
Industry
Laboratory Analytical Instruments
SEC CIK
0001001907

In the last 90 days, ASTROTECH Corp insiders filed 1 open-market purchase and 0 sales; 17 institutions reported holding it in 13F filings for Q2 2026, worth $1.72M in total; no superinvestor holds it.

13F holders, Q4 2025

Institutional positions in ASTROTECH Corp as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
13
−3 vs. Q3 2025
Shares held
113.6K
−200.1K (−63.8%) vs. Q3 2025
Total value
$398.7K
−$1.14M (−74.0%) vs. Q3 2025
New holders
1
4 more added
Sold out
4
2 more reduced

Compare with Q3 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ASTC on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2025: 13 institutions
Q1 2021: 16 institutionsQ2 2021: 16 institutionsQ3 2021: 15 institutionsQ4 2021: 16 institutionsQ1 2022: 18 institutionsQ2 2022: 19 institutionsQ3 2022: 22 institutionsQ4 2022: 14 institutionsQ1 2023: 16 institutionsQ2 2023: 20 institutionsQ3 2023: 20 institutionsQ4 2023: 20 institutionsQ1 2024: 17 institutionsQ2 2024: 15 institutionsQ3 2024: 18 institutionsQ4 2024: 17 institutionsQ1 2025: 16 institutionsQ2 2025: 13 institutionsQ3 2025: 16 institutionsQ4 2025: 13 institutionsQ1 2026: 15 institutionsQ2 2026: 17 institutions
Value heldQ4 2025: $398.7K
Q1 2021: $4.35MQ2 2021: $3.86MQ3 2021: $3.36MQ4 2021: $2.77MQ1 2022: $2.50MQ2 2022: $1.45MQ3 2022: $1.70MQ4 2022: $3.39MQ1 2023: $3.76MQ2 2023: $5.64MQ3 2023: $4.08MQ4 2023: $3.74MQ1 2024: $3.65MQ2 2024: $3.64MQ3 2024: $3.56MQ4 2024: $2.45MQ1 2025: $2.41MQ2 2025: $1.98MQ3 2025: $1.53MQ4 2025: $398.7KQ1 2026: $588.3KQ2 2026: $1.72M
Institutions holding ASTC and their total value by quarter
QuarterHoldersValue
Q2 202617$1.72M
Q1 202615$588.3K
Q4 202513$398.7K
Q3 202516$1.53M
Q2 202513$1.98M
Q1 202516$2.41M
Q4 202417$2.45M
Q3 202418$3.56M
Q2 202415$3.64M
Q1 202417$3.65M
Q4 202320$3.74M
Q3 202320$4.08M
Q2 202320$5.64M
Q1 202316$3.76M
Q4 202214$3.39M
Q3 202222$1.70M
Q2 202219$1.45M
Q1 202218$2.50M
Q4 202116$2.77M
Q3 202115$3.36M
Q2 202116$3.86M
Q1 202116$4.35M

Institutions, Q4 2025

Shares, value and share of portfolio for each institution holding ASTROTECH Corp; share changes are against Q3 2025.

Institutions holding ASTC in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
DRW Securities, LLC31,464$108.9K0.01%+19,747+168.5%Added
BlackRock, Inc.20,188$69.8K0.00%00.0%Unchanged
Geode Capital Management, LLC18,780$67.2K0.00%00.0%Unchanged
Citadel Advisors LLC15,051$53.9K0.00%+15,051New
Vanguard Group Inc14,774$52.9K0.00%00.0%Unchanged
SCS Capital Management LLC11,761$40.7K0.00%00.0%Unchanged
UBS Group AG903$3.12K0.00%−995−52.4%Reduced
Tower Research Capital LLC (TRC)514$1.78K0.00%+110+27.2%Added
Bank of America Corp66$2290.00%−48−42.1%Reduced
Federation des caisses Desjardins du Quebec23$800.00%00.0%Unchanged
Wells Fargo & Company20$690.00%+4+25.0%Added
Citigroup Inc6$210.00%+5+500.0%Added
SBI Securities Co., Ltd.3$100.00%00.0%Unchanged
BML Capital Management, LLC0$00.00%−220,410−100.0%Sold out
Susquehanna International Group, LLP0$00.00%−13,539−100.0%Sold out
Harbour Investments, Inc.0$00.00%−33−100.0%Sold out
Barclays PLC0$00.00%−3−100.0%Sold out