How many institutions own ASTC stock?

A company's 13F filings with the Securities and Exchange Commission (SEC) provides investors with comprehensive information about institutional ownership in a listed company, a sign of strength in terms of how many institutions have confidence in that company. The number of institutional investors who currently own ASTC shares is 19, representing 6.25% of the company's common stock.

Who are the major shareholders selling Astrotech Corporation stock?

CITIGROUP INC, in the last quarter, reduced its stake in ASTC by -100% restricting it's holding to 0 shares of worth nearly -. BANK OF AMERICA CORP /DE/ also lessened -100% of the ASTC shares from its portfolio, reducing its holding to 0 shares of worth -. UBS GROUP AG also shunned ASTC shares holding by -77.85% last quarter which brought its holding to 200 shares worth $1.05K.

Investors who are buying ASTC stock?

As per its latest 13F filing, J. SAFRA SARASIN HOLDING AG increased its stake in ASTC by 100% in the last quarter. The institutional holder raised its holding to 27.3 thousand shares having worth more than $140.05K. HARBOUR INVESTMENTS, INC. also added 100% more shares of ASTC to its portfolio, raising its holding to 8 shares of worth $42.00. SBI SECURITIES CO., LTD. also increased its ASTC shares holding by 333.33% which brought its holding to 13 shares worth $68.00.

ASTC's major insiders: who are they?

The insider with the most stakes in ASTC is Pickens Thomas Boone III , Chief Executive Officer at the company. Additionally, ASTC stock is highly held by 10 percent owner MARXE AUSTIN W & GREENHOUSE DAVID M and director Adams Mark among others.

Did an insider recently sell ASTC stock?

Company executives, directors, and other insiders own 14.08% percent of Astrotech Corporation's stock. Within the last six months, there have been 0 transaction(s) in which ASTC insiders have sold stock, totaling 0 shares. Insiders that have sold shares include LEONARD BRADEN MICHAEL, WHITE JR. DON MURPHREE, and ADAMS MARK.

Which insider recently purchased ASTC stock?

There have been 0 transaction(s) during the past 6-months in which Astrotech Corporation insiders have bought stock, totalling 0 shares

How much of ASTC does insiders own?

Around 0 Astrotech Corporation shares are held by insiders, which represents about 14.08% of ASTC stock.

Who is the insider with the largest stake?

ASTC Chief Executive Officer, Pickens Thomas Boone III holds the largest portfolio of the company's shares. ASTC shares owned by Pickens total nearly 3.73 million.

Which institution holds the most shares in ASTC?

J. SAFRA SARASIN HOLDING AG is the largest institutional owner in ASTC which holds 27.3 thousand shares worth $140.05K or 1.63% of the total ASTC shares outstanding followed by CITIGROUP INC with ownership of 0 shares representing 0% of the ASTC ownership. HARBOUR INVESTMENTS, INC. is the third largest stakeholder with 8 shares or 0% of the ownership worth more than $42.00.

Is Astrotech Corporation stock optionable?

Stock options give the owner the ability but not the obligation to buy or sell a security at a predetermined price and date. Stock options can be classified into two types: puts and calls. A put is a bet on falling stock, and a call is a bet on rising stock. As far as the ASTC is concerned, it is a stock which is not optionable.

Is there a short position on ASTC's shares?

Number of ASTC shares short is 29.52K. Shares short is a market sentiment in which investors have sold their shares short in a given stock but have not yet covered them or closed them out.

About how many outstanding ASTC shares are there?

As of today, 1.76M shares of ASTC are outstanding.

Is there many float in ASTC stock?

Float represents the number of tradeable shares in a specific stock. By subtracting restricted and closely-held shares from a firm's total outstanding shares, we can calculate its floating stock. The term "closely-held shares" refers to shares held by employees, major shareholders, and company insiders. At present, ASTC has 1.32M shares in float.

ASTC short ratio: what is it?

Short ratio is calculated by dividing the number of short shares, short interest or bets that shareholders will sell short from the average daily volume. A higher ratio indicates longer times needed to repurchase borrowed shares (sold). The short ratio for ASTC is 3.24.

Astrotech (ASTC) insider trading activity: Get Latest News Today

Stock Outstanding Shares

Making an investment decision in the stock market involves a certain amount of risk, so it's important to thoroughly review a company's stock before making any decisions. Stock float, number of short positions and outstanding shares are among the many factors an investor should take into account.

ShortableYes

OptionableNo

Short Percent Of Outstanding Shares1.68

Short Percent Of Float1.75

Shares Outstanding1.76M

Shares Float1.32M

Shares Short29.52K

Short Ratio3.24

1.75%

Short % of Float

1.68%

Short % of Shares Outstanding

Market Insider

Investors cannot turn a blind eye to insiders as well as institutional ownership. They need to follow insider trades to determine the direction the stock is likely to take.

Major Holders Summary

14.08% Percentage of Shares held by All Insiders

6.25% Percentage of Shares held by All Institutions

7.27% Percentage of Float held by Institutions

Number of Institutions Holding Shares

Institutional Ownership

About 6.25% of ASTC shares are held by financial institutions. J. SAFRA SARASIN HOLDING AG is the top corporate investor, holding 27.3K shares valued at $140.05K. A 1.63% stake in Astrotech Corporation is owned by the company. CITIGROUP INC owns 0 shares valued at -, which translates its holding of 0% of the stake in the company.

Date	Holder	% Stake	Shares Held	Total Value ($)	Shares	% Change in Portfolio
Mar 31, 2026	J. SAFRA SARASIN HOLDING AG	1.63%	27.3K	140.05K	27.3K	+100.00%
Mar 31, 2026	CITIGROUP INC	0%	0	-	-6	-100.00%
Mar 31, 2026	HARBOUR INVESTMENTS, INC.	0%	8	42	8	+100.00%
Mar 31, 2026	SBI SECURITIES CO., LTD.	0%	13	68	10	+333.33%
Mar 31, 2026	WELLS FARGO & COMPANY/MN	0%	20	104	0	0
Mar 31, 2026	FEDERATION DES CAISSES DESJARDINS DU QUEBEC	0%	23	120	0	0
Mar 31, 2026	TOWER RESEARCH CAPITAL LLC (TRC)	0.13%	2.26K	11.82K	1.75K	+339.69%
Mar 31, 2026	GEODE CAPITAL MANAGEMENT, LLC	1.15%	19.35K	101.2K	567	+3.02%
Mar 31, 2026	BLACKROCK, INC.	1.2%	20.19K	105.58K	0	0
Mar 31, 2026	BANK OF AMERICA CORP /DE/	0%	0	-	-66	-100.00%
Mar 31, 2026	UBS GROUP AG	0.01%	200	1.05K	-703	-77.85%
Mar 31, 2026	VANGUARD GLOBAL ADVISERS, LLC	0.05%	911	4.77K	911	+100.00%
Mar 31, 2026	DRW SECURITIES, LLC	0%	0	-	-31.46K	-100.00%
Mar 31, 2026	CAITONG INTERNATIONAL ASSET MANAGEMENT CO., LTD	0.24%	4.04K	21.11K	4.04K	+100.00%
Mar 31, 2026	VANGUARD FIDUCIARY TRUST CO	0.26%	4.34K	22.69K	4.34K	+100.00%
Mar 31, 2026	CITADEL ADVISORS LLC	0%	0	-	-15.05K	-100.00%
Mar 31, 2026	SCS CAPITAL MANAGEMENT LLC	0.7%	11.76K	61.51K	0	0
Mar 31, 2026		0.55%	9.21K	48.14K	9.21K	+100.00%
Dec 31, 2025	GEODE CAPITAL MANAGEMENT, LLC	1.12%	18.78K	67.24K	0	0
Dec 31, 2025	BLACKROCK, INC.	1.2%	20.19K	69.85K	0	0
Dec 31, 2025	BML CAPITAL MANAGEMENT, LLC	0%	0	-	-220.41K	-100.00%
Dec 31, 2025	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0%	0	-	-13.54K	-100.00%
Dec 31, 2025	CITIGROUP INC	0%	6	21	5	+500.00%
Dec 31, 2025	HARBOUR INVESTMENTS, INC.	0%	0	-	-33	-100.00%
Dec 31, 2025	BARCLAYS PLC	0%	0	-	-3	-100.00%
Dec 31, 2025	SBI SECURITIES CO., LTD.	0%	3	10	0	0
Dec 31, 2025	WELLS FARGO & COMPANY/MN	0%	20	69	4	+25.00%
Dec 31, 2025	FEDERATION DES CAISSES DESJARDINS DU QUEBEC	0%	23	80	0	0
Dec 31, 2025	BANK OF AMERICA CORP /DE/	0%	66	229	-48	-42.11%
Dec 31, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0.03%	514	1.78K	110	+27.23%
Dec 31, 2025	UBS GROUP AG	0.05%	903	3.12K	-995	-52.42%
Dec 31, 2025	SCS CAPITAL MANAGEMENT LLC	0.7%	11.76K	40.69K	0	0
Dec 31, 2025	CITADEL ADVISORS LLC	0.9%	15.05K	53.88K	15.05K	+100.00%
Dec 31, 2025	VANGUARD GROUP INC	0.88%	14.77K	52.89K	0	0
Dec 31, 2025	DRW SECURITIES, LLC	1.88%	31.46K	108.87K	19.75K	+168.53%
Sep 30, 2025	ADVISOR GROUP HOLDINGS, INC.	0%	0	-	-218	-100.00%
Sep 30, 2025	BARCLAYS PLC	0%	3	15	3	+100.00%
Sep 30, 2025	BML CAPITAL MANAGEMENT, LLC	13.24%	220.41K	1.08M	0	0
Sep 30, 2025	BLACKROCK, INC.	1.21%	20.19K	98.92K	0	0
Sep 30, 2025	GEODE CAPITAL MANAGEMENT, LLC	1.13%	18.78K	90.91K	0	0
Sep 30, 2025	VANGUARD GROUP INC	0.89%	14.77K	71.51K	-38.88K	-72.46%
Sep 30, 2025	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.81%	13.54K	65.53K	13.54K	+100.00%
Sep 30, 2025	SCS CAPITAL MANAGEMENT LLC	0.71%	11.76K	57.63K	0	0
Sep 30, 2025	DRW SECURITIES, LLC	0.7%	11.72K	57.41K	11.72K	+100.00%
Sep 30, 2025	UBS GROUP AG	0.11%	1.9K	9.3K	-1.11K	-36.92%
Sep 30, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0.02%	404	1.98K	153	+60.96%
Sep 30, 2025	BANK OF AMERICA CORP /DE/	0.01%	114	559	-1	-0.87%
Sep 30, 2025	HARBOUR INVESTMENTS, INC.	0%	33	162	0	0
Sep 30, 2025	FEDERATION DES CAISSES DESJARDINS DU QUEBEC	0%	23	113	0	0
Sep 30, 2025	WELLS FARGO & COMPANY/MN	0%	16	79	2	+14.29%
Sep 30, 2025	SBI SECURITIES CO., LTD.	0%	3	15	0	0
Sep 30, 2025	CITIGROUP INC	0%	1	5	1	+100.00%
Sep 30, 2025	DIMENSIONAL FUND ADVISORS LP	0%	0	-	-13.76K	-100.00%
Jun 30, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0.02%	251	1.45K	-513	-67.15%
Jun 30, 2025	CITADEL ADVISORS LLC	0%	0	-	-18.51K	-100.00%
Jun 30, 2025	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0%	0	-	-10.36K	-100.00%
Jun 30, 2025	UBS GROUP AG	0.18%	3.01K	17.38K	-1.6K	-34.64%
Jun 30, 2025	SBI SECURITIES CO., LTD.	0%	3	17	0	0
Jun 30, 2025	FEDERATION DES CAISSES DESJARDINS DU QUEBEC	0%	23	133	0	0
Jun 30, 2025	HARBOUR INVESTMENTS, INC.	0%	33	191	0	0
Jun 30, 2025	BANK OF AMERICA CORP /DE/	0.01%	115	664	103	+858.33%
Jun 30, 2025		0%	3	17	0	0
Jun 30, 2025	VANGUARD GROUP INC	3.22%	53.66K	309.86K	0	0
Jun 30, 2025	BML CAPITAL MANAGEMENT, LLC	13.24%	220.41K	1.27M	0	0
Jun 30, 2025	ADVISOR GROUP HOLDINGS, INC.	0.01%	218	1.46K	218	+100.00%
Jun 30, 2025	SCS CAPITAL MANAGEMENT LLC	0.71%	11.76K	67.92K	0	0
Jun 30, 2025	DIMENSIONAL FUND ADVISORS LP	0.83%	13.76K	79.46K	1.68K	+13.88%
Jun 30, 2025	GEODE CAPITAL MANAGEMENT, LLC	1.13%	18.78K	108.47K	-19	-0.10%
Jun 30, 2025	BLACKROCK, INC.	1.21%	20.19K	116.59K	0	0
Jun 30, 2025	JPMORGAN CHASE & CO	0%	0	-	-4	-100.00%
Jun 30, 2025	WELLS FARGO & COMPANY/MN	0%	14	81	0	0
Mar 31, 2025	BLACKROCK, INC.	1.21%	20.19K	130.82K	0	0
Mar 31, 2025	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.62%	10.36K	67.1K	10.36K	+100.00%
Mar 31, 2025	UBS GROUP AG	0.28%	4.6K	29.83K	763	+19.86%
Mar 31, 2025	WELLS FARGO & COMPANY/MN	0%	14	91	0	0
Mar 31, 2025	BML CAPITAL MANAGEMENT, LLC	13.24%	220.41K	1.43M	0	0
Mar 31, 2025	VANGUARD GROUP INC	3.22%	53.66K	347.68K	0	0
Mar 31, 2025	FEDERATION DES CAISSES DESJARDINS DU QUEBEC	0%	23	149	0	0
Mar 31, 2025	HARBOUR INVESTMENTS, INC.	0%	33	214	0	0
Mar 31, 2025	TD CAPITAL MANAGEMENT LLC	0%	0	-	-527	-100.00%
Mar 31, 2025		0%	3	19	-1	-25.00%
Mar 31, 2025	JPMORGAN CHASE & CO	0%	4	26	0	0
Mar 31, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0.05%	764	4.95K	313	+69.40%
Mar 31, 2025	SCS CAPITAL MANAGEMENT LLC	0.71%	11.76K	76.21K	11.76K	+100.00%
Mar 31, 2025	DIMENSIONAL FUND ADVISORS LP	0.73%	12.08K	78.29K	152	+1.27%
Mar 31, 2025	CITADEL ADVISORS LLC	1.11%	18.51K	119.93K	-5.51K	-22.93%
Mar 31, 2025	BANK OF AMERICA CORP /DE/	0%	12	78	0	0
Mar 31, 2025	GEODE CAPITAL MANAGEMENT, LLC	1.13%	18.8K	121.84K	995	+5.59%
Jun 30, 2023	CARMEL CAPITAL PARTNERS, LLC	0%	66	935	0	0

Insiders

Among the ASTC insiders holding of 14.08% of the stake in company, PICKENS THOMAS BOONE III, Chief Executive Officer, holds the largest shares of 3.73M. MARXE AUSTIN W & GREENHOUSE DAVID M, 10 percent owner, is the second largest ASTC insider with ownership of 1.2M shares. ADAMS MARK, director, stands third with possession of 450.02K shares of that stake.

Insiders	Designation	Shares Held
PICKENS THOMAS BOONE III	Chief Executive Officer	3.73M
MARXE AUSTIN W & GREENHOUSE DAVID M	10 percent owner	1.2M
ADAMS MARK	director	450.02K
PORTER JOHN	Chief Financial Officer	350K
WHITE JR. DON MURPHREE	Sr VP, GM Astrotech Space Ops.	83.9K
READDY WILLIAM F	director	40K
WILKINSON THOMAS WILEY	director	20.86K
BECKER JAMES FRANK	director	16.12K
RUSSLER DANIEL T JR	director	14.9K
MCFARLAND ROBERT N	director	9.72K
HINOJOSA JAIME	CFO	6.98K
LEONARD BRADEN MICHAEL	10 percent owner	0
NEIBOER SCOTT		0
MORGAN NICHOLAS	Controller	0
HARRISON SHELLEY A	director	0

Buying/Selling by Insiders

Date	Insider	Type	Cost	Shares	Value ($)	Shares Total
Oct 03, 2025	LEONARD BRADEN MICHAEL	SALE	7.13	220.41K	1.57M	0
May 29, 2024	BECKER JAMES FRANK	PURCHASE	9.82	1.1K	10.8K	16.12K
May 28, 2024	BECKER JAMES FRANK	PURCHASE	9.50	934	8.87K	15.02K
May 21, 2024	WILKINSON THOMAS WILEY	PURCHASE	9.50	1.11K	10.54K	20.86K
Mar 15, 2024	RUSSLER DANIEL T JR	PURCHASE	8.42	387	3.26K	14.9K
Mar 15, 2024	BECKER JAMES FRANK	PURCHASE	8.25	649	5.35K	14.09K
Mar 13, 2024	BECKER JAMES FRANK	PURCHASE	8.16	839	6.85K	13.44K
Mar 13, 2024	WILKINSON THOMAS WILEY	PURCHASE	8.28	1.3K	10.76K	19.75K
Mar 12, 2024	RUSSLER DANIEL T JR	PURCHASE	8.29	500	4.15K	14.52K
Mar 12, 2024	BECKER JAMES FRANK	PURCHASE	8.14	958	7.8K	12.6K
Dec 29, 2023	MCFARLAND ROBERT N	PURCHASE	8.34	21	175.14	9.72K
Dec 27, 2023	MCFARLAND ROBERT N	PURCHASE	8.19	1.2K	9.83K	9.69K
Dec 11, 2023	RUSSLER DANIEL T JR	PURCHASE	7.65	650	4.97K	14.02K
Nov 28, 2023	HINOJOSA JAIME	PURCHASE	8.19	1K	8.19K	6.98K
Nov 28, 2023	BECKER JAMES FRANK	PURCHASE	8.13	490	3.98K	11.64K
Nov 22, 2023	BECKER JAMES FRANK	PURCHASE	7.47	1.1K	8.22K	11.15K
Nov 20, 2023	MCFARLAND ROBERT N	PURCHASE	7.80	1.29K	10.06K	8.49K
Nov 17, 2023	BECKER JAMES FRANK	PURCHASE	7.66	1.36K	10.43K	10.05K
Nov 17, 2023	MCFARLAND ROBERT N	PURCHASE	7.50	54	405	7.2K
Nov 16, 2023	WILKINSON THOMAS WILEY	PURCHASE	7.47	1.5K	11.21K	18.45K
May 23, 2023	HINOJOSA JAIME	PURCHASE	9.49	900	8.54K	7.88K
May 18, 2023	WILKINSON THOMAS WILEY	PURCHASE	10.81	1K	10.81K	11.95K
May 18, 2023	BECKER JAMES FRANK	PURCHASE	10.71	48	514.08	3.69K
Mar 15, 2023	RUSSLER DANIEL T JR	PURCHASE	10.85	500	5.43K	8.37K
Mar 15, 2023	MCFARLAND ROBERT N	PURCHASE	8.50	1.19K	10.07K	10.9K
Mar 09, 2023	BECKER JAMES FRANK	PURCHASE	13.00	403	5.24K	3.64K
Mar 06, 2023	BECKER JAMES FRANK	PURCHASE	12.90	465	6K	3.24K
Feb 21, 2023	WILKINSON THOMAS WILEY	PURCHASE	11.96	875	10.47K	10.95K
Feb 17, 2023	HINOJOSA JAIME	PURCHASE	11.91	1.03K	12.32K	5.98K
Dec 12, 2022	BECKER JAMES FRANK	PURCHASE	10.41	476	4.96K	3.25K
Dec 02, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.34	190.97K	65.6K	6.61M
Nov 29, 2022	HINOJOSA JAIME	PURCHASE	0.33	32K	10.56K	148.49K
Nov 23, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.33	75K	24.65K	6.42M
Nov 18, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.39	133.69K	51.75K	6.35M
Nov 17, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.36	93.88K	33.9K	6.21M
Nov 16, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.36	162.93K	59.29K	6.12M
Oct 18, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.39	50K	19.38K	5.96M
Oct 14, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.38	166.43K	62.46K	5.91M
Sep 27, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.44	157.93K	69.87K	5.74M
Sep 26, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.44	100K	44.05K	5.58M
Sep 23, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.43	100K	42.69K	5.48M
Sep 01, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.47	129.99K	61.02K	5.38M
Aug 23, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.47	167.59K	79.55K	5.14M
Dec 07, 2018	WILKINSON THOMAS WILEY	PURCHASE	2.85	952	2.71K	952
Mar 18, 2013	WHITE JR. DON MURPHREE	SALE	0.74	2K	1.49K	83.9K
Nov 01, 2012	PICKENS THOMAS BOONE III	PURCHASE	0.90	1.78M	1.61M	3.73M
Jun 02, 2011	PORTER JOHN	PURCHASE	1.02	30K	30.6K	350K
May 17, 2011	PORTER JOHN	PURCHASE	0.97	20K	19.4K	320K
Mar 31, 2011	ADAMS MARK	SALE	1.08	67.08K	72.45K	450.02K
Mar 30, 2011	ADAMS MARK	SALE	1.08	51.9K	56.05K	517.1K
Mar 29, 2011	ADAMS MARK	SALE	1.08	57.1K	61.67K	569K
Mar 28, 2011	ADAMS MARK	SALE	1.12	28K	31.36K	626.1K
Mar 25, 2011	ADAMS MARK	SALE	1.09	30.9K	33.68K	654.1K
Sep 30, 2009	NEIBOER SCOTT	SALE	15.00	0	-	0
Mar 24, 2009	ADAMS MARK	PURCHASE	0.40	350K	139.27K	525K
Mar 24, 2009	NEIBOER SCOTT	PURCHASE	0.40	265K	106K	1.75M
Jun 16, 2008	READDY WILLIAM F	PURCHASE	0.66	15K	9.84K	40K
Jun 05, 2008	NEIBOER SCOTT	PURCHASE	0.47	1.06M	500K	1.49M
May 22, 2008	NEIBOER SCOTT	PURCHASE	0.40	400K	160K	400K
Nov 06, 2007	MARXE AUSTIN W & GREENHOUSE DAVID M	SALE	0.25	541.84K	135.79K	1.2M
Sep 27, 2004	MORGAN NICHOLAS	SALE	2.31	2K	4.62K	0
Feb 23, 2004	MORGAN NICHOLAS	SALE	0.70	100	70	100
Feb 20, 2004	MORGAN NICHOLAS	SALE	3.32	463	1.54K	0
Feb 12, 2004	HARRISON SHELLEY A	SALE	3.12	82.29K	257.09K	0

Frequently Asked Questions

Stock Outstanding Shares

ShortableYes

OptionableNo

Short Percent Of Outstanding Shares1.68

Short Percent Of Float1.75

Shares Outstanding1.76M

Shares Float1.32M

Shares Short29.52K

Short Ratio3.24

1.75%

Short % of Float

1.68%

Short % of Shares Outstanding

Market Insider

Investors cannot turn a blind eye to insiders as well as institutional ownership. They need to follow insider trades to determine the direction the stock is likely to take.

Major Holders Summary

14.08% Percentage of Shares held by All Insiders

6.25% Percentage of Shares held by All Institutions

7.27% Percentage of Float held by Institutions

Number of Institutions Holding Shares

Institutional Ownership

Date	Holder	% Stake	Shares Held	Total Value ($)	Shares	% Change in Portfolio
Mar 31, 2026	J. SAFRA SARASIN HOLDING AG	1.63%	27.3K	140.05K	27.3K	+100.00%
Mar 31, 2026	CITIGROUP INC	0%	0	-	-6	-100.00%
Mar 31, 2026	HARBOUR INVESTMENTS, INC.	0%	8	42	8	+100.00%
Mar 31, 2026	SBI SECURITIES CO., LTD.	0%	13	68	10	+333.33%
Mar 31, 2026	WELLS FARGO & COMPANY/MN	0%	20	104	0	0
Mar 31, 2026	FEDERATION DES CAISSES DESJARDINS DU QUEBEC	0%	23	120	0	0
Mar 31, 2026	TOWER RESEARCH CAPITAL LLC (TRC)	0.13%	2.26K	11.82K	1.75K	+339.69%
Mar 31, 2026	GEODE CAPITAL MANAGEMENT, LLC	1.15%	19.35K	101.2K	567	+3.02%
Mar 31, 2026	BLACKROCK, INC.	1.2%	20.19K	105.58K	0	0
Mar 31, 2026	BANK OF AMERICA CORP /DE/	0%	0	-	-66	-100.00%
Mar 31, 2026	UBS GROUP AG	0.01%	200	1.05K	-703	-77.85%
Mar 31, 2026	VANGUARD GLOBAL ADVISERS, LLC	0.05%	911	4.77K	911	+100.00%
Mar 31, 2026	DRW SECURITIES, LLC	0%	0	-	-31.46K	-100.00%
Mar 31, 2026	CAITONG INTERNATIONAL ASSET MANAGEMENT CO., LTD	0.24%	4.04K	21.11K	4.04K	+100.00%
Mar 31, 2026	VANGUARD FIDUCIARY TRUST CO	0.26%	4.34K	22.69K	4.34K	+100.00%
Mar 31, 2026	CITADEL ADVISORS LLC	0%	0	-	-15.05K	-100.00%
Mar 31, 2026	SCS CAPITAL MANAGEMENT LLC	0.7%	11.76K	61.51K	0	0
Mar 31, 2026		0.55%	9.21K	48.14K	9.21K	+100.00%
Dec 31, 2025	GEODE CAPITAL MANAGEMENT, LLC	1.12%	18.78K	67.24K	0	0
Dec 31, 2025	BLACKROCK, INC.	1.2%	20.19K	69.85K	0	0
Dec 31, 2025	BML CAPITAL MANAGEMENT, LLC	0%	0	-	-220.41K	-100.00%
Dec 31, 2025	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0%	0	-	-13.54K	-100.00%
Dec 31, 2025	CITIGROUP INC	0%	6	21	5	+500.00%
Dec 31, 2025	HARBOUR INVESTMENTS, INC.	0%	0	-	-33	-100.00%
Dec 31, 2025	BARCLAYS PLC	0%	0	-	-3	-100.00%
Dec 31, 2025	SBI SECURITIES CO., LTD.	0%	3	10	0	0
Dec 31, 2025	WELLS FARGO & COMPANY/MN	0%	20	69	4	+25.00%
Dec 31, 2025	FEDERATION DES CAISSES DESJARDINS DU QUEBEC	0%	23	80	0	0
Dec 31, 2025	BANK OF AMERICA CORP /DE/	0%	66	229	-48	-42.11%
Dec 31, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0.03%	514	1.78K	110	+27.23%
Dec 31, 2025	UBS GROUP AG	0.05%	903	3.12K	-995	-52.42%
Dec 31, 2025	SCS CAPITAL MANAGEMENT LLC	0.7%	11.76K	40.69K	0	0
Dec 31, 2025	CITADEL ADVISORS LLC	0.9%	15.05K	53.88K	15.05K	+100.00%
Dec 31, 2025	VANGUARD GROUP INC	0.88%	14.77K	52.89K	0	0
Dec 31, 2025	DRW SECURITIES, LLC	1.88%	31.46K	108.87K	19.75K	+168.53%
Sep 30, 2025	ADVISOR GROUP HOLDINGS, INC.	0%	0	-	-218	-100.00%
Sep 30, 2025	BARCLAYS PLC	0%	3	15	3	+100.00%
Sep 30, 2025	BML CAPITAL MANAGEMENT, LLC	13.24%	220.41K	1.08M	0	0
Sep 30, 2025	BLACKROCK, INC.	1.21%	20.19K	98.92K	0	0
Sep 30, 2025	GEODE CAPITAL MANAGEMENT, LLC	1.13%	18.78K	90.91K	0	0
Sep 30, 2025	VANGUARD GROUP INC	0.89%	14.77K	71.51K	-38.88K	-72.46%
Sep 30, 2025	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.81%	13.54K	65.53K	13.54K	+100.00%
Sep 30, 2025	SCS CAPITAL MANAGEMENT LLC	0.71%	11.76K	57.63K	0	0
Sep 30, 2025	DRW SECURITIES, LLC	0.7%	11.72K	57.41K	11.72K	+100.00%
Sep 30, 2025	UBS GROUP AG	0.11%	1.9K	9.3K	-1.11K	-36.92%
Sep 30, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0.02%	404	1.98K	153	+60.96%
Sep 30, 2025	BANK OF AMERICA CORP /DE/	0.01%	114	559	-1	-0.87%
Sep 30, 2025	HARBOUR INVESTMENTS, INC.	0%	33	162	0	0
Sep 30, 2025	FEDERATION DES CAISSES DESJARDINS DU QUEBEC	0%	23	113	0	0
Sep 30, 2025	WELLS FARGO & COMPANY/MN	0%	16	79	2	+14.29%
Sep 30, 2025	SBI SECURITIES CO., LTD.	0%	3	15	0	0
Sep 30, 2025	CITIGROUP INC	0%	1	5	1	+100.00%
Sep 30, 2025	DIMENSIONAL FUND ADVISORS LP	0%	0	-	-13.76K	-100.00%
Jun 30, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0.02%	251	1.45K	-513	-67.15%
Jun 30, 2025	CITADEL ADVISORS LLC	0%	0	-	-18.51K	-100.00%
Jun 30, 2025	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0%	0	-	-10.36K	-100.00%
Jun 30, 2025	UBS GROUP AG	0.18%	3.01K	17.38K	-1.6K	-34.64%
Jun 30, 2025	SBI SECURITIES CO., LTD.	0%	3	17	0	0
Jun 30, 2025	FEDERATION DES CAISSES DESJARDINS DU QUEBEC	0%	23	133	0	0
Jun 30, 2025	HARBOUR INVESTMENTS, INC.	0%	33	191	0	0
Jun 30, 2025	BANK OF AMERICA CORP /DE/	0.01%	115	664	103	+858.33%
Jun 30, 2025		0%	3	17	0	0
Jun 30, 2025	VANGUARD GROUP INC	3.22%	53.66K	309.86K	0	0
Jun 30, 2025	BML CAPITAL MANAGEMENT, LLC	13.24%	220.41K	1.27M	0	0
Jun 30, 2025	ADVISOR GROUP HOLDINGS, INC.	0.01%	218	1.46K	218	+100.00%
Jun 30, 2025	SCS CAPITAL MANAGEMENT LLC	0.71%	11.76K	67.92K	0	0
Jun 30, 2025	DIMENSIONAL FUND ADVISORS LP	0.83%	13.76K	79.46K	1.68K	+13.88%
Jun 30, 2025	GEODE CAPITAL MANAGEMENT, LLC	1.13%	18.78K	108.47K	-19	-0.10%
Jun 30, 2025	BLACKROCK, INC.	1.21%	20.19K	116.59K	0	0
Jun 30, 2025	JPMORGAN CHASE & CO	0%	0	-	-4	-100.00%
Jun 30, 2025	WELLS FARGO & COMPANY/MN	0%	14	81	0	0
Mar 31, 2025	BLACKROCK, INC.	1.21%	20.19K	130.82K	0	0
Mar 31, 2025	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.62%	10.36K	67.1K	10.36K	+100.00%
Mar 31, 2025	UBS GROUP AG	0.28%	4.6K	29.83K	763	+19.86%
Mar 31, 2025	WELLS FARGO & COMPANY/MN	0%	14	91	0	0
Mar 31, 2025	BML CAPITAL MANAGEMENT, LLC	13.24%	220.41K	1.43M	0	0
Mar 31, 2025	VANGUARD GROUP INC	3.22%	53.66K	347.68K	0	0
Mar 31, 2025	FEDERATION DES CAISSES DESJARDINS DU QUEBEC	0%	23	149	0	0
Mar 31, 2025	HARBOUR INVESTMENTS, INC.	0%	33	214	0	0
Mar 31, 2025	TD CAPITAL MANAGEMENT LLC	0%	0	-	-527	-100.00%
Mar 31, 2025		0%	3	19	-1	-25.00%
Mar 31, 2025	JPMORGAN CHASE & CO	0%	4	26	0	0
Mar 31, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0.05%	764	4.95K	313	+69.40%
Mar 31, 2025	SCS CAPITAL MANAGEMENT LLC	0.71%	11.76K	76.21K	11.76K	+100.00%
Mar 31, 2025	DIMENSIONAL FUND ADVISORS LP	0.73%	12.08K	78.29K	152	+1.27%
Mar 31, 2025	CITADEL ADVISORS LLC	1.11%	18.51K	119.93K	-5.51K	-22.93%
Mar 31, 2025	BANK OF AMERICA CORP /DE/	0%	12	78	0	0
Mar 31, 2025	GEODE CAPITAL MANAGEMENT, LLC	1.13%	18.8K	121.84K	995	+5.59%
Jun 30, 2023	CARMEL CAPITAL PARTNERS, LLC	0%	66	935	0	0

Insiders

Insiders	Designation	Shares Held
PICKENS THOMAS BOONE III	Chief Executive Officer	3.73M
MARXE AUSTIN W & GREENHOUSE DAVID M	10 percent owner	1.2M
ADAMS MARK	director	450.02K
PORTER JOHN	Chief Financial Officer	350K
WHITE JR. DON MURPHREE	Sr VP, GM Astrotech Space Ops.	83.9K
READDY WILLIAM F	director	40K
WILKINSON THOMAS WILEY	director	20.86K
BECKER JAMES FRANK	director	16.12K
RUSSLER DANIEL T JR	director	14.9K
MCFARLAND ROBERT N	director	9.72K
HINOJOSA JAIME	CFO	6.98K
LEONARD BRADEN MICHAEL	10 percent owner	0
NEIBOER SCOTT		0
MORGAN NICHOLAS	Controller	0
HARRISON SHELLEY A	director	0

Buying/Selling by Insiders

Date	Insider	Type	Cost	Shares	Value ($)	Shares Total
Oct 03, 2025	LEONARD BRADEN MICHAEL	SALE	7.13	220.41K	1.57M	0
May 29, 2024	BECKER JAMES FRANK	PURCHASE	9.82	1.1K	10.8K	16.12K
May 28, 2024	BECKER JAMES FRANK	PURCHASE	9.50	934	8.87K	15.02K
May 21, 2024	WILKINSON THOMAS WILEY	PURCHASE	9.50	1.11K	10.54K	20.86K
Mar 15, 2024	RUSSLER DANIEL T JR	PURCHASE	8.42	387	3.26K	14.9K
Mar 15, 2024	BECKER JAMES FRANK	PURCHASE	8.25	649	5.35K	14.09K
Mar 13, 2024	BECKER JAMES FRANK	PURCHASE	8.16	839	6.85K	13.44K
Mar 13, 2024	WILKINSON THOMAS WILEY	PURCHASE	8.28	1.3K	10.76K	19.75K
Mar 12, 2024	RUSSLER DANIEL T JR	PURCHASE	8.29	500	4.15K	14.52K
Mar 12, 2024	BECKER JAMES FRANK	PURCHASE	8.14	958	7.8K	12.6K
Dec 29, 2023	MCFARLAND ROBERT N	PURCHASE	8.34	21	175.14	9.72K
Dec 27, 2023	MCFARLAND ROBERT N	PURCHASE	8.19	1.2K	9.83K	9.69K
Dec 11, 2023	RUSSLER DANIEL T JR	PURCHASE	7.65	650	4.97K	14.02K
Nov 28, 2023	HINOJOSA JAIME	PURCHASE	8.19	1K	8.19K	6.98K
Nov 28, 2023	BECKER JAMES FRANK	PURCHASE	8.13	490	3.98K	11.64K
Nov 22, 2023	BECKER JAMES FRANK	PURCHASE	7.47	1.1K	8.22K	11.15K
Nov 20, 2023	MCFARLAND ROBERT N	PURCHASE	7.80	1.29K	10.06K	8.49K
Nov 17, 2023	BECKER JAMES FRANK	PURCHASE	7.66	1.36K	10.43K	10.05K
Nov 17, 2023	MCFARLAND ROBERT N	PURCHASE	7.50	54	405	7.2K
Nov 16, 2023	WILKINSON THOMAS WILEY	PURCHASE	7.47	1.5K	11.21K	18.45K
May 23, 2023	HINOJOSA JAIME	PURCHASE	9.49	900	8.54K	7.88K
May 18, 2023	WILKINSON THOMAS WILEY	PURCHASE	10.81	1K	10.81K	11.95K
May 18, 2023	BECKER JAMES FRANK	PURCHASE	10.71	48	514.08	3.69K
Mar 15, 2023	RUSSLER DANIEL T JR	PURCHASE	10.85	500	5.43K	8.37K
Mar 15, 2023	MCFARLAND ROBERT N	PURCHASE	8.50	1.19K	10.07K	10.9K
Mar 09, 2023	BECKER JAMES FRANK	PURCHASE	13.00	403	5.24K	3.64K
Mar 06, 2023	BECKER JAMES FRANK	PURCHASE	12.90	465	6K	3.24K
Feb 21, 2023	WILKINSON THOMAS WILEY	PURCHASE	11.96	875	10.47K	10.95K
Feb 17, 2023	HINOJOSA JAIME	PURCHASE	11.91	1.03K	12.32K	5.98K
Dec 12, 2022	BECKER JAMES FRANK	PURCHASE	10.41	476	4.96K	3.25K
Dec 02, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.34	190.97K	65.6K	6.61M
Nov 29, 2022	HINOJOSA JAIME	PURCHASE	0.33	32K	10.56K	148.49K
Nov 23, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.33	75K	24.65K	6.42M
Nov 18, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.39	133.69K	51.75K	6.35M
Nov 17, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.36	93.88K	33.9K	6.21M
Nov 16, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.36	162.93K	59.29K	6.12M
Oct 18, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.39	50K	19.38K	5.96M
Oct 14, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.38	166.43K	62.46K	5.91M
Sep 27, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.44	157.93K	69.87K	5.74M
Sep 26, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.44	100K	44.05K	5.58M
Sep 23, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.43	100K	42.69K	5.48M
Sep 01, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.47	129.99K	61.02K	5.38M
Aug 23, 2022	LEONARD BRADEN MICHAEL	PURCHASE	0.47	167.59K	79.55K	5.14M
Dec 07, 2018	WILKINSON THOMAS WILEY	PURCHASE	2.85	952	2.71K	952
Mar 18, 2013	WHITE JR. DON MURPHREE	SALE	0.74	2K	1.49K	83.9K
Nov 01, 2012	PICKENS THOMAS BOONE III	PURCHASE	0.90	1.78M	1.61M	3.73M
Jun 02, 2011	PORTER JOHN	PURCHASE	1.02	30K	30.6K	350K
May 17, 2011	PORTER JOHN	PURCHASE	0.97	20K	19.4K	320K
Mar 31, 2011	ADAMS MARK	SALE	1.08	67.08K	72.45K	450.02K
Mar 30, 2011	ADAMS MARK	SALE	1.08	51.9K	56.05K	517.1K
Mar 29, 2011	ADAMS MARK	SALE	1.08	57.1K	61.67K	569K
Mar 28, 2011	ADAMS MARK	SALE	1.12	28K	31.36K	626.1K
Mar 25, 2011	ADAMS MARK	SALE	1.09	30.9K	33.68K	654.1K
Sep 30, 2009	NEIBOER SCOTT	SALE	15.00	0	-	0
Mar 24, 2009	ADAMS MARK	PURCHASE	0.40	350K	139.27K	525K
Mar 24, 2009	NEIBOER SCOTT	PURCHASE	0.40	265K	106K	1.75M
Jun 16, 2008	READDY WILLIAM F	PURCHASE	0.66	15K	9.84K	40K
Jun 05, 2008	NEIBOER SCOTT	PURCHASE	0.47	1.06M	500K	1.49M
May 22, 2008	NEIBOER SCOTT	PURCHASE	0.40	400K	160K	400K
Nov 06, 2007	MARXE AUSTIN W & GREENHOUSE DAVID M	SALE	0.25	541.84K	135.79K	1.2M
Sep 27, 2004	MORGAN NICHOLAS	SALE	2.31	2K	4.62K	0
Feb 23, 2004	MORGAN NICHOLAS	SALE	0.70	100	70	100
Feb 20, 2004	MORGAN NICHOLAS	SALE	3.32	463	1.54K	0
Feb 12, 2004	HARRISON SHELLEY A	SALE	3.12	82.29K	257.09K	0

ASTC Stock Ownership Breakdown

Astrotech

Stock Outstanding Shares

Market Insider

Institutional Ownership

Insiders

Buying/Selling by Insiders

Frequently Asked Questions

Stock Outstanding Shares

Market Insider

Institutional Ownership

Insiders

Buying/Selling by Insiders

Frequently Asked Questions