Astrotech Corp (ASTC)

The most recent insider trading activity at Astrotech Corp occurred on October 3, 2025, involving two significant sell transactions by Leonard Braden Michael totaling over 1.6 million dollars. Prior to these sales, insider activity consisted exclusively of open market purchases by various individuals throughout 2023 and 2024.
Ticker: ASTC Exchange: NAS


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Insider trades have triggered activity signals for Astrotech Corp. Upgrade to see score, net flow, insiders and the full signal context.

Top insiders
Trades
Sale 3 Oct 2025
Value US$4,129,956.25 | Price 276.57 | Shares 12,919 (+11.2%)
Sale 3 Oct 2025
Value US$3,569,094.13 | Price 479.34 | Shares 16,302 (-12.9%)
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value
Number of shares Price Value Details
2025-10-07 2025-10-03 S Sale Large shareholder
12,919 +11.2%
276.57
US$4,129,956
12,919 +11.2% 276.57 US$4,129,956
2025-10-07 2025-10-03 S Sale Large shareholder
16,302 -12.9%
479.34
US$3,569,094
16,302 -12.9% 479.34 US$3,569,094
2024-05-30 2024-05-29 B Purchase Non-Executive Director
37,133 +6.3%
242.99
US$2,863,481
37,133 +6.3% 242.99 US$2,863,481
2024-05-30 2024-05-28 B Purchase Non-Executive Director
934 +6.6%
9.50
US$8,873
934 +6.6% 9.50 US$8,873
2024-05-21 2024-05-21 B Purchase Non-Executive Director
1,109 +5.6%
9.50
US$10,536
1,109 +5.6% 9.50 US$10,536
2024-03-19 2024-03-15 B Purchase Non-Executive Director
387 +2.7%
8.42
US$3,259
387 +2.7% 8.42 US$3,259
2024-03-18 2024-03-15 B Purchase Non-Executive Director
649 +4.8%
8.25
US$5,354
649 +4.8% 8.25 US$5,354
2024-03-18 2024-03-13 B Purchase Non-Executive Director
839 +6.7%
8.16
US$6,846
839 +6.7% 8.16 US$6,846
2024-03-14 2024-03-13 B Purchase Non-Executive Director
1,300 +7.0%
8.28
US$10,765
1,300 +7.0% 8.28 US$10,765
2024-03-14 2024-03-12 B Purchase Non-Executive Director
500 +3.6%
8.29
US$4,145
500 +3.6% 8.29 US$4,145
2024-03-13 2024-03-12 B Purchase Non-Executive Director
958 +8.2%
8.14
US$7,798
958 +8.2% 8.14 US$7,798
2024-01-02 2023-12-29 B Purchase Non-Executive Director
21 +0.2%
8.34
US$175
21 +0.2% 8.34 US$175
2024-01-02 2023-12-27 B Purchase Non-Executive Director
1,200 +14.1%
8.19
US$9,828
1,200 +14.1% 8.19 US$9,828
2023-12-13 2023-12-11 B Purchase Non-Executive Director
650 +4.9%
7.65
US$4,972
650 +4.9% 7.65 US$4,972
2023-11-29 2023-11-28 B Purchase

CFO

Officer
1,000 +16.7%
8.19
US$8,190
1,000 +16.7% 8.19 US$8,190
2023-11-29 2023-11-28 B Purchase Non-Executive Director
490 +4.4%
8.13
US$3,984
490 +4.4% 8.13 US$3,984
2023-11-27 2023-11-22 B Purchase Non-Executive Director
1,100 +10.9%
7.47
US$8,217
1,100 +10.9% 7.47 US$8,217
2023-11-21 2023-11-20 B Purchase Non-Executive Director
1,290 +17.9%
7.80
US$10,062
1,290 +17.9% 7.80 US$10,062
2023-11-21 2023-11-17 B Purchase Non-Executive Director
54 +0.8%
7.50
US$405
54 +0.8% 7.50 US$405
2023-11-21 2023-11-17 B Purchase Non-Executive Director
1,361 +15.7%
7.66
US$10,425
1,361 +15.7% 7.66 US$10,425
2023-11-17 2023-11-16 B Purchase Non-Executive Director
1,500 +8.8%
7.47
US$11,206
1,500 +8.8% 7.47 US$11,206
2024-05-28 2023-05-23 B Purchase

CFO

Officer
900 +12.9%
9.49
US$8,541
900 +12.9% 9.49 US$8,541
2023-05-19 2023-05-18 B Purchase Non-Executive Director
1,000 +9.1%
10.81
US$10,813
1,000 +9.1% 10.81 US$10,813
2023-05-19 2023-05-18 B Purchase Non-Executive Director
48 +1.3%
10.71
US$514
48 +1.3% 10.71 US$514
2024-03-18 2023-03-15 B Purchase Non-Executive Director
1,185 +12.2%
8.50
US$10,072
1,185 +12.2% 8.50 US$10,072
2023-03-16 2023-03-15 B Purchase Non-Executive Director
500 +6.4%
10.85
US$5,425
500 +6.4% 10.85 US$5,425
2023-03-09 2023-03-09 B Purchase Non-Executive Director
403 +12.4%
13.00
US$5,239
403 +12.4% 13.00 US$5,239
2023-03-08 2023-03-06 B Purchase Non-Executive Director
465 +16.8%
12.90
US$5,998
465 +16.8% 12.90 US$5,998
2023-02-22 2023-02-21 B Purchase Non-Executive Director
875 +8.7%
11.96
US$10,465
875 +8.7% 11.96 US$10,465
2023-02-21 2023-02-17 B Purchase

CFO

Officer
1,034 +20.9%
11.91
US$12,319
1,034 +20.9% 11.91 US$12,319
2022-12-13 2022-12-12 B Purchase Non-Executive Director
476 +17.2%
10.41
US$4,955
476 +17.2% 10.41 US$4,955
2022-12-02 2022-12-02 B Purchase Large shareholder
190,971 +3.0%
0.34
US$65,599
190,971 +3.0% 0.34 US$65,599
2022-11-30 2022-11-29 B Purchase

CFO

Officer
32,000 +27.5%
0.33
US$10,560
32,000 +27.5% 0.33 US$10,560
2022-11-25 2022-11-23 B Purchase Large shareholder
75,000 +1.2%
0.33
US$24,652
75,000 +1.2% 0.33 US$24,652
2022-11-18 2022-11-18 B Purchase Large shareholder
133,688 +2.2%
0.39
US$51,751
133,688 +2.2% 0.39 US$51,751
2022-11-18 2022-11-17 B Purchase Large shareholder
93,879 +1.5%
0.36
US$33,900
93,879 +1.5% 0.36 US$33,900
2022-11-18 2022-11-16 B Purchase Large shareholder
162,928 +2.7%
0.36
US$59,289
162,928 +2.7% 0.36 US$59,289
2022-10-18 2022-10-18 B Purchase Large shareholder
50,000 +0.8%
0.39
US$19,375
50,000 +0.8% 0.39 US$19,375
2022-10-18 2022-10-14 B Purchase Large shareholder
166,434 +2.9%
0.38
US$62,463
166,434 +2.9% 0.38 US$62,463
2022-09-27 2022-09-27 B Purchase Large shareholder
157,929 +2.8%
0.44
US$69,868
157,929 +2.8% 0.44 US$69,868
2022-09-27 2022-09-26 B Purchase Large shareholder
100,000 +1.8%
0.44
US$44,050
100,000 +1.8% 0.44 US$44,050
2022-09-27 2022-09-23 B Purchase Large shareholder
100,000 +1.9%
0.43
US$42,690
100,000 +1.9% 0.43 US$42,690
2022-09-07 2022-09-02 B Purchase Large shareholder
129,990 +2.5%
0.47
US$61,017
129,990 +2.5% 0.47 US$61,017
2022-09-07 2022-09-01 B Purchase Large shareholder
122,070 +2.4%
0.46
US$56,286
122,070 +2.4% 0.46 US$56,286
2022-08-25 2022-08-24 B Purchase Large shareholder
167,589 +3.4%
0.47
US$79,554
167,589 +3.4% 0.47 US$79,554
2022-08-25 2022-08-23 B Purchase Large shareholder
311,733 +6.7%
0.45
US$139,345
311,733 +6.7% 0.45 US$139,345
2018-12-11 2018-12-07 B Purchase Wilkinson Thomas Wiley Non-Executive Director
5,000 +525.2%
2.84
US$14,200
5,000 +525.2% 2.84 US$14,200
2018-12-11 2018-12-07 B Purchase Wilkinson Thomas Wiley Non-Executive Director
952 +inf%
2.85
US$2,713
952 +inf% 2.85 US$2,713
2014-04-10 2013-03-18 S Sale White Jr. Don Murphree

Sr VP, GM Astrotech Space Ops.

Officer
2,000 -2.3%
0.74
US$1,485
2,000 -2.3% 0.74 US$1,485
2012-11-05 2012-11-01 B Purchase Pickens Thomas Boone III

Chief Executive Officer

Executive Director Large shareholder
1,783,746 +91.5%
0.90
US$1,605,371
1,783,746 +91.5% 0.90 US$1,605,371
2011-06-03 2011-06-02 B Purchase Porter John

Chief Financial Officer

Officer
30,000 +9.4%
1.02
US$30,600
30,000 +9.4% 1.02 US$30,600
2011-05-19 2011-05-17 B Purchase Porter John

Chief Financial Officer

Officer
20,000 +6.7%
0.97
US$19,400
20,000 +6.7% 0.97 US$19,400
2011-04-06 2011-03-31 S Sale Adams Mark Non-Executive Director
67,079 -13.0%
1.08
US$72,445
67,079 -13.0% 1.08 US$72,445
2011-04-06 2011-03-30 S Sale Adams Mark Non-Executive Director
51,902 -9.1%
1.08
US$56,054
51,902 -9.1% 1.08 US$56,054
2011-03-30 2011-03-29 S Sale Adams Mark Non-Executive Director
57,100 -9.1%
1.08
US$61,668
57,100 -9.1% 1.08 US$61,668
2011-03-30 2011-03-28 S Sale Adams Mark Non-Executive Director
28,000 -4.3%
1.12
US$31,360
28,000 -4.3% 1.12 US$31,360
2011-03-29 2011-03-25 S Sale Adams Mark Non-Executive Director
30,900 -4.5%
1.09
US$33,681
30,900 -4.5% 1.09 US$33,681
2009-03-26 2009-03-24 B Purchase NEIBOER SCOTT Non-Executive Director Large shareholder
265,000 +17.8%
0.40
US$106,000
265,000 +17.8% 0.40 US$106,000
2009-03-26 2009-03-24 B Purchase Adams Mark Non-Executive Director
350,000 +200.0%
0.40
US$139,265
350,000 +200.0% 0.40 US$139,265
2008-06-17 2008-06-16 B Purchase Readdy William F Non-Executive Director
15,000 +60.0%
0.66
US$9,840
15,000 +60.0% 0.66 US$9,840
2008-06-06 2008-06-05 B Purchase NEIBOER SCOTT Non-Executive Director Large shareholder
1,063,829 +250.3%
0.47
US$500,000
1,063,829 +250.3% 0.47 US$500,000
2008-05-22 2008-05-22 B Purchase NEIBOER SCOTT Non-Executive Director
400,000 +inf%
0.40
US$160,000
400,000 +inf% 0.40 US$160,000
2007-11-08 2007-11-06 S Sale MARXE AUSTIN W & GREENHOUSE DAVID M Large shareholder
541,843 -31.2%
0.25
US$135,786
541,843 -31.2% 0.25 US$135,786
2004-09-28 2004-09-27 S Sale MORGAN NICHOLAS

Controller

Officer
2,000 -100.0%
2.31
US$4,623
2,000 -100.0% 2.31 US$4,623
2004-02-24 2004-02-20 S Sale MORGAN NICHOLAS

Controller

463 -100.0%
3.32
US$1,537
463 -100.0% 3.32 US$1,537
2004-02-23 2004-02-12 S Sale HARRISON SHELLEY A

Chairman of the Board

82,291 -100.0%
3.12
US$257,094
82,291 -100.0% 3.12 US$257,094