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United States Biotechnology & Medical Research

Vaxart Inc (VXRT)

Track

Over the last 90 days, Vaxart Inc. has seen one insider transaction, a buy totaling $6,530. This contrasts with a period of more frequent buying activity in the preceding months, including significant purchases by Kevin Finney and Steven Lo. The stock has experienced a 23.5% decline in the past 90 days.
Stock chart
Ticker: VXRT Exchange: NAS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
Watson W. Mark
1 purchase — total 6,530 USD
Buy 22 May 2026
Value US$3,848,453.04 | Price 308.06 | Shares 80,021
Proposed sale 8 Dec 2025
Value US$1,301,366.58 | Price 71.90 | Shares 62,427
Buy 17 Nov 2025
Value US$2,035.00 | Price 0.41 | Shares 5,000
Buy 17 Nov 2025
Value US$6,150.00 | Price 0.41 | Shares 15,000
Buy 17 Nov 2025
Value US$6,797.12 | Price 0.41 | Shares 16,783
Buy 17 Nov 2025
Value US$9,124.28 | Price 0.39 | Shares 23,217
Buy 15 Aug 2025
Value US$18,500.00 | Price 0.37 | Shares 50,000
Buy 15 Aug 2025
Value US$17,500.00 | Price 0.35 | Shares 50,000
Buy 30 Jul 2025
Value US$9,832.12 | Price 0.38 | Shares 25,874
Buy 29 Jul 2025
Value US$4,050.00 | Price 0.41 | Shares 10,000
Buy 28 Jul 2025
Value US$8,000.00 | Price 0.40 | Shares 20,000
Buy 25 Jul 2025
Value US$7,800.00 | Price 0.39 | Shares 20,000
Buy 17 Jul 2025
Value US$301.72 | Price 0.38 | Shares 794
Proposed sale 27 May 2025
Value US$37,427.44 | Price 0.46 | Shares 81,364
Buy 19 May 2025
Value US$49,000.00 | Price 0.49 | Shares 100,000
Buy 18 Jun 2024
Value US$13,578.00 | Price 0.68 | Shares 20,000
Buy 28 Dec 2022
Value US$15,140.00 | Price 0.76 | Shares 20,000
Buy 22 Jun 2022
Value US$16,100.00 | Price 3.22 | Shares 5,000
Sale 10 Jan 2022
Value US$9,015.15 | Price 6.01 | Shares 1,500
Planned sale 30 Nov 2021
Value US$28,816.00 | Price 8.00 | Shares 3,602
Planned sale 10 Sep 2021
Value US$16,389.10 | Price 9.10 | Shares 1,801
Planned sale 11 Jun 2021
Value US$14,416.00 | Price 8.00 | Shares 1,802
Sale 11 Jun 2021
Value US$86,109.00 | Price 8.61 | Shares 10,000
Sale 7 May 2021
Value US$712,750.00 | Price 7.13 | Shares 100,000
Sale 6 May 2021
Value US$653,890.00 | Price 6.54 | Shares 100,000
Sale 4 Mar 2021
Value US$906,450.00 | Price 6.04 | Shares 150,000
Sale 23 Nov 2020
Value US$2,108,137.55 | Price 6.32 | Shares 333,334
Sale 3 Jun 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 3 Jun 2020
Value US$1,108,000.00 | Price 2.77 | Shares 400,000
Sale 2 Jun 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 2 Jun 2020
Value US$2,200,000.00 | Price 2.75 | Shares 800,000
Sale 1 Jun 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 1 Jun 2020
Value US$548,000.00 | Price 2.74 | Shares 200,000
Sale 27 May 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 27 May 2020
Value US$522,000.00 | Price 2.61 | Shares 200,000
Sale 22 May 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 22 May 2020
Value US$572,000.00 | Price 2.86 | Shares 200,000
Sale 21 May 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 21 May 2020
Value US$1,188,000.00 | Price 2.97 | Shares 400,000
Sale 20 May 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 20 May 2020
Value US$3,668,500.00 | Price 3.19 | Shares 1,150,000
Sale 18 May 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 18 May 2020
Value US$1,859,000.00 | Price 2.86 | Shares 650,000
Sale 15 May 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 15 May 2020
Value US$1,293,361.98 | Price 2.82 | Shares 458,639
Sale 14 May 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 14 May 2020
Value US$2,520,700.38 | Price 3.02 | Shares 834,669
Sale 13 May 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 13 May 2020
Value US$1,561,079.52 | Price 2.97 | Shares 525,616
Sale 12 May 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 12 May 2020
Value US$4,774,849.52 | Price 3.02 | Shares 1,581,076
Sale 11 May 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 11 May 2020
Value US$3,627,000.00 | Price 2.79 | Shares 1,300,000
Sale 8 May 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 8 May 2020
Value US$252,000.00 | Price 2.52 | Shares 100,000
Sale 7 May 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 7 May 2020
Value US$251,000.00 | Price 2.51 | Shares 100,000
Sale 6 May 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 6 May 2020
Value US$129,000.00 | Price 2.58 | Shares 50,000
Sale 5 May 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 5 May 2020
Value US$1,842,132.46 | Price 2.66 | Shares 692,531
Sale 4 May 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 4 May 2020
Value US$2,537,292.85 | Price 2.65 | Shares 957,469
Sale 1 May 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 1 May 2020
Value US$2,710,000.00 | Price 2.71 | Shares 1,000,000
Sale 30 Apr 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 30 Apr 2020
Value US$13,125,516.16 | Price 2.96 | Shares 4,434,296
Sale 29 Apr 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 29 Apr 2020
Value US$2,629,638.34 | Price 3.01 | Shares 873,634
Sale 28 Apr 2020
Value US$0.00 | Price 0.00 | Shares 0
Sale 28 Apr 2020
Value US$4,367,196.60 | Price 3.38 | Shares 1,292,070
Sale 28 Apr 2020
Value US$196,500.00 | Price 3.28 | Shares 60,000
Buy 7 Nov 2019
Value US$0.00 | Price 0.00 | Shares 0
Buy 7 Nov 2019
Value US$21,674.66 | Price 0.34 | Shares 63,749
Buy 6 Nov 2019
Value US$0.00 | Price 0.00 | Shares 0
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
2026-05-26 2026-05-22 B Purchase
3.9
Watson W. Mark
Non-Executive Director
80,021 +40.7%
308.06
US$3,848,453 		80,021 +40.7% 308.06 US$3,848,453
2025-12-08 2025-12-08 PrS Proposed sale
MICHAEL JOSEPH FINNEY

Former Director

Non-Executive Director
62,427
71.90
US$1,301,367 		62,427 71.90 US$1,301,367
2025-12-05 2025-11-17 B Purchase
3.9
Watson W. Mark
Non-Executive Director
29,397 +2.9%
149.13
US$3,105,002 		29,397 +2.9% 149.13 US$3,105,002
2025-12-05 2025-11-17 B Purchase
3.9
Watson W. Mark
Non-Executive Director
15,000 +14.4%
0.41
US$6,150 		15,000 +14.4% 0.41 US$6,150
2025-11-21 2025-11-17 B Purchase
2.0
HERON ELAINE J
Non-Executive Director
16,783 +21.0%
0.41
US$6,797 		16,783 +21.0% 0.41 US$6,797
2025-11-21 2025-11-17 B Purchase
2.0
HERON ELAINE J
Non-Executive Director
23,217 +41.0%
0.39
US$9,124 		23,217 +41.0% 0.39 US$9,124
2025-08-19 2025-08-15 B Purchase
2.2
Finney Kevin
Non-Executive Director
50,000 +32.3%
0.37
US$18,500 		50,000 +32.3% 0.37 US$18,500
2025-08-19 2025-08-15 B Purchase
2.2
Finney Kevin
Non-Executive Director
50,000 +47.7%
0.35
US$17,500 		50,000 +47.7% 0.35 US$17,500
2025-08-19 2025-07-30 B Purchase
2.2
Finney Kevin
Non-Executive Director
25,874 +32.8%
0.38
US$9,832 		25,874 +32.8% 0.38 US$9,832
2025-07-31 2025-07-29 B Purchase
3.9
Watson W. Mark
Non-Executive Director
10,000 +10.6%
0.41
US$4,050 		10,000 +10.6% 0.41 US$4,050
2025-08-19 2025-07-28 B Purchase
2.2
Finney Kevin
Non-Executive Director
20,000 +34.0%
0.40
US$8,000 		20,000 +34.0% 0.40 US$8,000
2025-08-19 2025-07-25 B Purchase
2.2
Finney Kevin
Non-Executive Director
20,000 +51.4%
0.39
US$7,800 		20,000 +51.4% 0.39 US$7,800
2025-08-19 2025-07-17 B Purchase
2.2
Finney Kevin
Non-Executive Director
794 +2.1%
0.38
US$302 		794 +2.1% 0.38 US$302
2025-05-27 2025-05-27 PrS Proposed sale
Lee Phillip E (VXRT)

Former Executive Officer

Officer
81,364
0.46
US$37,427 		81,364 0.46 US$37,427
2025-05-19 2025-05-19 B Purchase
1.5
Lo Steven

President, Chief Exec Officer

Executive Director
100,000 +inf%
0.49
US$49,000 		100,000 +inf% 0.49 US$49,000
2024-06-20 2024-06-18 B Purchase
3.9
Watson W. Mark
Non-Executive Director
20,000 +34.4%
0.68
US$13,578 		20,000 +34.4% 0.68 US$13,578
2022-12-28 2022-12-28 B Purchase
3.9
Watson W. Mark
Non-Executive Director
20,000 +inf%
0.76
US$15,140 		20,000 +inf% 0.76 US$15,140
2022-06-23 2022-06-22 B Purchase
1.4
Ahmad Fuad

Interim CFO

Officer
5,000 +inf%
3.22
US$16,100 		5,000 +inf% 3.22 US$16,100
2022-10-07 2022-01-10 S Sale
3.1
Yedid Robert A.
Non-Executive Director
1,500 -100.0%
6.01
US$9,015 		1,500 -100.0% 6.01 US$9,015
2021-12-01 2021-11-30 PlS Planned sale
Echerd Margaret

SVP, Principal Accntng Officer

Officer
3,602 -100.0%
8.00
US$28,816 		3,602 -100.0% 8.00 US$28,816
2021-09-13 2021-09-10 PlS Planned sale
Echerd Margaret

SVP, Principal Accntng Officer

Officer
1,801 -100.0%
9.10
US$16,389 		1,801 -100.0% 9.10 US$16,389
2021-06-14 2021-06-11 PlS Planned sale
Echerd Margaret

SVP, Principal Accntng Officer

Officer
1,802 -100.0%
8.00
US$14,416 		1,802 -100.0% 8.00 US$14,416
2021-06-14 2021-06-11 S Sale
3.1
Yedid Robert A.
Non-Executive Director
10,000 -54.8%
8.61
US$86,109 		10,000 -54.8% 8.61 US$86,109
2021-05-10 2021-05-07 S Sale
2.6
Latour Wouter
Non-Executive Director
100,000 -100.0%
7.13
US$712,750 		100,000 -100.0% 7.13 US$712,750
2021-05-10 2021-05-06 S Sale
2.6
Latour Wouter
Non-Executive Director
100,000 -100.0%
6.54
US$653,890 		100,000 -100.0% 6.54 US$653,890
2021-03-05 2021-03-04 S Sale
2.6
Latour Wouter
Non-Executive Director
150,000 -100.0%
6.04
US$906,450 		150,000 -100.0% 6.04 US$906,450
2020-11-23 2020-11-23 S Sale
2.6
Latour Wouter
Non-Executive Director
333,334 -100.0%
6.32
US$2,108,138 		333,334 -100.0% 6.32 US$2,108,138
2020-06-03 2020-06-03 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director
0
0.00
US$0 		0 0.00 US$0
2020-06-03 2020-06-03 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director
400,000 -5.4%
2.77
US$1,108,000 		400,000 -5.4% 2.77 US$1,108,000
2020-06-03 2020-06-02 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director
0
0.00
US$0 		0 0.00 US$0
2020-06-03 2020-06-02 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director
800,000 -9.8%
2.75
US$2,200,000 		800,000 -9.8% 2.75 US$2,200,000
2020-06-03 2020-06-01 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director
0
0.00
US$0 		0 0.00 US$0
2020-06-03 2020-06-01 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director
200,000 -2.4%
2.74
US$548,000 		200,000 -2.4% 2.74 US$548,000
2020-05-29 2020-05-27 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
0
0.00
US$0 		0 0.00 US$0
2020-05-29 2020-05-27 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
200,000 -2.3%
2.61
US$522,000 		200,000 -2.3% 2.61 US$522,000
2020-05-22 2020-05-22 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
0
0.00
US$0 		0 0.00 US$0
2020-05-22 2020-05-22 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
200,000 -2.3%
2.86
US$572,000 		200,000 -2.3% 2.86 US$572,000
2020-05-22 2020-05-21 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
0
0.00
US$0 		0 0.00 US$0
2020-05-22 2020-05-21 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
400,000 -4.3%
2.97
US$1,188,000 		400,000 -4.3% 2.97 US$1,188,000
2020-05-22 2020-05-20 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
0
0.00
US$0 		0 0.00 US$0
2020-05-22 2020-05-20 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
1,150,000 -11.1%
3.19
US$3,668,500 		1,150,000 -11.1% 3.19 US$3,668,500
2020-05-18 2020-05-18 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
0
0.00
US$0 		0 0.00 US$0
2020-05-18 2020-05-18 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
650,000 -5.9%
2.86
US$1,859,000 		650,000 -5.9% 2.86 US$1,859,000
2020-05-18 2020-05-15 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
0
0.00
US$0 		0 0.00 US$0
2020-05-18 2020-05-15 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
458,639 -4.0%
2.82
US$1,293,362 		458,639 -4.0% 2.82 US$1,293,362
2020-05-18 2020-05-14 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
0
0.00
US$0 		0 0.00 US$0
2020-05-18 2020-05-14 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
834,669 -6.8%
3.02
US$2,520,700 		834,669 -6.8% 3.02 US$2,520,700
2020-05-13 2020-05-13 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
0
0.00
US$0 		0 0.00 US$0
2020-05-13 2020-05-13 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
525,616 -4.1%
2.97
US$1,561,080 		525,616 -4.1% 2.97 US$1,561,080
2020-05-13 2020-05-12 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
0
0.00
US$0 		0 0.00 US$0
2020-05-13 2020-05-12 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
1,581,076 -11.0%
3.02
US$4,774,850 		1,581,076 -11.0% 3.02 US$4,774,850
2020-05-13 2020-05-11 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
0
0.00
US$0 		0 0.00 US$0
2020-05-13 2020-05-11 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
1,300,000 -8.3%
2.79
US$3,627,000 		1,300,000 -8.3% 2.79 US$3,627,000
2020-05-08 2020-05-08 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
0
0.00
US$0 		0 0.00 US$0
2020-05-08 2020-05-08 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
100,000 -0.6%
2.52
US$252,000 		100,000 -0.6% 2.52 US$252,000
2020-05-08 2020-05-07 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
0
0.00
US$0 		0 0.00 US$0
2020-05-08 2020-05-07 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
100,000 -0.6%
2.51
US$251,000 		100,000 -0.6% 2.51 US$251,000
2020-05-08 2020-05-06 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
0
0.00
US$0 		0 0.00 US$0
2020-05-08 2020-05-06 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
50,000 -0.3%
2.58
US$129,000 		50,000 -0.3% 2.58 US$129,000
2020-05-05 2020-05-05 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
0
0.00
US$0 		0 0.00 US$0
2020-05-05 2020-05-05 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
692,531 -4.2%
2.66
US$1,842,132 		692,531 -4.2% 2.66 US$1,842,132
2020-05-05 2020-05-04 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
0
0.00
US$0 		0 0.00 US$0
2020-05-05 2020-05-04 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
957,469 -5.4%
2.65
US$2,537,293 		957,469 -5.4% 2.65 US$2,537,293
2020-05-05 2020-05-01 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
0
0.00
US$0 		0 0.00 US$0
2020-05-05 2020-05-01 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
1,000,000 -5.4%
2.71
US$2,710,000 		1,000,000 -5.4% 2.71 US$2,710,000
2020-04-30 2020-04-30 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
0
0.00
US$0 		0 0.00 US$0
2020-04-30 2020-04-30 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
4,434,296 -19.3%
2.96
US$13,125,516 		4,434,296 -19.3% 2.96 US$13,125,516
2020-04-30 2020-04-29 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
0
0.00
US$0 		0 0.00 US$0
2020-04-30 2020-04-29 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
873,634 -3.7%
3.01
US$2,629,638 		873,634 -3.7% 3.01 US$2,629,638
2020-04-30 2020-04-28 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
0
0.00
US$0 		0 0.00 US$0
2020-04-30 2020-04-28 S Sale
2.5
ARMISTICE CAPITAL, LLC
Non-Executive Director Large shareholder
1,292,070 -5.1%
3.38
US$4,367,197 		1,292,070 -5.1% 3.38 US$4,367,197
2020-04-30 2020-04-28 S Sale
4.0
Davis Todd C
Non-Executive Director
60,000 -33.3%
3.28
US$196,500 		60,000 -33.3% 3.28 US$196,500
2019-11-07 2019-11-07 B Purchase
2.5
ARMISTICE CAPITAL, LLC
Large shareholder
0
0.00
US$0 		0 0.00 US$0
2019-11-07 2019-11-07 B Purchase
2.5
ARMISTICE CAPITAL, LLC
Large shareholder
63,749 +0.3%
0.34
US$21,675 		63,749 +0.3% 0.34 US$21,675
2019-11-07 2019-11-06 B Purchase
2.5
ARMISTICE CAPITAL, LLC
Large shareholder
0
0.00
US$0 		0 0.00 US$0
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