ASTROTECH Corp (ASTC) Insider Ownership

Historic Insider Ownership Trends

Astrotech's three largest insider shareholders as of June 06, 2026 are Braden Michael Leonard (TenPercentOwner, 12.96Mn shares), Ronald W Cantwell (Director, 182.32K shares), Thomas Boone Iii Pickens (Ceo, 181.38K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Ronald W Cantwell - 182,324 0 18 Apr, 2022
Robert N Mcfarland - 13,900 0 16 May, 2025
Thomas Boone Iii Pickens Ceo 181,385 0 16 May, 2025
Braden Michael Leonard - 0 12,958,651 02 Dec, 2022
Daniel T Jr Russler - 14,904 0 19 Mar, 2024
Eric Stober Cfo 10,331 0 16 May, 2025
Thomas Wiley Wilkinson - 23,862 0 15 May, 2025
Jaime Hinojosa Cfo 7,881 0 24 May, 2024
James Frank Becker - 16,121 0 29 May, 2024
Charles Arch Winn - 3,889 0 16 May, 2025
John William Halinski - 3,000 0 16 May, 2025
Jennifer Canas Chief Financial Officer 5,250 0 04 Jun, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
03 Oct, 2025 Braden Michael Leonard Common Stock D 220,410 $7.13 0 I S
03 Oct, 2025 Braden Michael Leonard Common Stock D 9,166 $5.83 0 D S
22 May, 2025 Jennifer Canas Employee Stock Options (right to buy) A 5,250 $0.00 5,250 D A
22 May, 2025 Jennifer Canas Employee Stock Options (right to buy) A 5,250 $0.00 5,250 D A
22 May, 2025 Jennifer Canas Common Stock A 5,250 $0.00 5,250 D A
22 May, 2025 Jennifer Canas Common Stock A 5,250 $0.00 5,250 D A
14 May, 2025 Robert N Mcfarland Common Stock A 3,000 $0.00 13,900 D A
14 May, 2025 Eric Stober Common Stock A 3,000 $0.00 10,331 D A
14 May, 2025 John William Halinski Common Stock A 3,000 $0.00 3,000 D A
14 May, 2025 Eric Stober Common Stock A 3,000 $0.00 10,331 D A
14 May, 2025 John William Halinski Common Stock A 3,000 $0.00 3,000 D A
14 May, 2025 Charles Arch Winn Common Stock A 3,000 $0.00 3,889 D A
14 May, 2025 Charles Arch Winn Common Stock A 3,000 $0.00 3,889 D A
14 May, 2025 Thomas Boone Iii Pickens Common Stock A 50,000 $0.00 181,385 D A
14 May, 2025 Thomas Wiley Wilkinson Common Stock A 3,000 $0.00 23,862 D A
28 Aug, 2024 Jaime Hinojosa Stock Options A 8,860 $0.00 30,062 D A
28 Aug, 2024 Jaime Hinojosa Stock Options A 8,860 $0.00 30,062 D A
28 Aug, 2024 Thomas Boone Iii Pickens Stock Options A 25,310 $0.00 102,269 D A
28 May, 2024 James Frank Becker Common Stock A 934 $9.50 15,021 D P
28 May, 2024 James Frank Becker Common Stock A 934 $9.50 15,021 D P