Vaxart, Inc. (VXRT) has 20 known insider and institutional holders on record. The largest holder is LESCHLY JAN with 30,793,670 shares. Other notable holders include Care Capital III LLC and ARMISTICE CAPITAL, LLC.
Over the last 12 months, insiders have made 35 transactions in VXRT stock — 20 buys (valued at $2.3M) and 0 sells (valued at RSU Award). Insider buying has outpaced selling during this period, which may signal confidence in the company's prospects.
VXRT Insider Ownership
Top Holder
LESCHLY JAN
30,793,670 shares
Buys (12 mo)
20
$2.3M value
Sells (12 mo)
0
$0.00 value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Leschly Jan |
Director |
30,793,670 |
2018-02-15 |
|
| 2 |
Care Capital Iii Llc |
10 Percent Owner |
30,793,670 |
2018-02-15 |
|
| 3 |
Armistice Capital, Llc |
Director |
8,200,000 |
2020-06-03 |
|
| 4 |
Third Point Llc |
Director |
6,100,000 |
2007-05-11 |
|
| 5 |
Lo Steven |
President, Chief Exec Officer |
2,485,606 |
2026-03-26 |
|
| 6 |
Patti Joseph M |
CEO |
2,113,304 |
2017-04-05 |
|
| 7 |
Cummings James F. |
Chief Medical Officer |
924,177 |
2026-03-31 |
|
| 8 |
Latour Wouter |
President and Chief Executive |
900,000 |
2020-06-09 |
|
| 9 |
Tucker Sean |
SVP, Chief Scientific Officer |
882,811 |
2026-03-31 |
|
| 10 |
Colonnese Mark P |
Chief Financial Officer |
775,000 |
2017-04-05 |
|
| 11 |
Berg Edward B |
SVP, General Counsel |
755,368 |
2026-03-26 |
|
| 12 |
Plumb Russell H |
Director |
622,453 |
2017-05-22 |
|
| 13 |
Lee Phillip E |
Chief Financial Officer |
610,000 |
2025-03-26 |
|
| 14 |
Gury David J |
Director |
495,313 |
2004-06-22 |
|
| 15 |
Grasman Jeroen Nicolaas |
Chief Financial Officer |
455,000 |
2026-03-18 |
|
| 16 |
Fahim Raafat E F |
President, CEO and CFO |
333,734 |
2011-04-05 |
|
| 17 |
Floroiu Cezar Andrei |
President, Chief Exec Officer |
185,000 |
2023-03-21 |
|
| 18 |
Aryeh Jason |
Director |
131,783 |
2011-03-17 |
|
| 19 |
Watson W. Mark |
Director |
119,125 |
2025-12-05 |
|
| 20 |
Kessler Paul D. |
SVP Clinical, Med. & Reg.; CMO |
105,128 |
2012-04-09 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-03-28 |
Cummings James F. |
Chief Medical Officer |
Tax Withholding of RSU |
3,292 |
$0.65 |
$2.14K |
| 2026-03-28 |
Tucker Sean |
SVP, Chief Scientific Officer |
Tax Withholding of RSU |
3,924 |
$0.65 |
$2.55K |
| 2026-03-24 |
Berg Edward B |
SVP, General Counsel |
Tax Withholding of RSU |
36,418 |
$0.69 |
$25.27K |
| 2026-03-24 |
Cummings James F. |
Chief Medical Officer |
Tax Withholding of RSU |
30,551 |
$0.69 |
$21.2K |
| 2026-03-24 |
Tucker Sean |
SVP, Chief Scientific Officer |
Tax Withholding of RSU |
36,418 |
$0.69 |
$25.27K |
| 2026-03-24 |
Lo Steven |
President, Chief Exec Officer |
Tax Withholding of RSU |
126,028 |
$0.69 |
$87.46K |
| 2026-03-18 |
Berg Edward B |
SVP, General Counsel |
Tax Withholding of RSU |
8,072 |
$0.63 |
$5.12K |
| 2026-03-18 |
Cummings James F. |
Chief Medical Officer |
Tax Withholding of RSU |
6,772 |
$0.63 |
$4.3K |
| 2026-03-18 |
Tucker Sean |
SVP, Chief Scientific Officer |
Tax Withholding of RSU |
8,072 |
$0.63 |
$5.12K |
| 2026-03-18 |
Lo Steven |
President, Chief Exec Officer |
Tax Withholding of RSU |
22,425 |
$0.63 |
$14.23K |
| 2026-03-16 |
Grasman Jeroen Nicolaas |
Chief Financial Officer |
RSU Award |
455,000 |
$0.68 |
$309.17K |
| 2026-03-16 |
Berg Edward B |
SVP, General Counsel |
RSU Award |
225,000 |
$0.68 |
$152.89K |
| 2026-03-16 |
Cummings James F. |
Chief Medical Officer |
RSU Award |
455,000 |
$0.68 |
$309.17K |
| 2026-03-16 |
Tucker Sean |
SVP, Chief Scientific Officer |
RSU Award |
410,000 |
$0.68 |
$278.6K |
| 2026-03-16 |
Lo Steven |
President, Chief Exec Officer |
RSU Award |
1,543,000 |
$0.68 |
$1.05M |
| 2026-02-02 |
Berg Edward B |
SVP, General Counsel |
Tax Withholding of RSU |
9,265 |
$0.61 |
$5.64K |
| 2026-02-02 |
Cummings James F. |
Chief Medical Officer |
Tax Withholding of RSU |
7,965 |
$0.61 |
$4.85K |
| 2026-02-02 |
Tucker Sean |
SVP, Chief Scientific Officer |
Tax Withholding of RSU |
9,265 |
$0.61 |
$5.64K |
| 2025-12-04 |
Lo Steven |
President, Chief Exec Officer |
Tax Withholding of RSU |
54,153 |
$0.37 |
$20.04K |
| 2025-11-17 |
Watson W. Mark |
Director |
Informative Buy |
15,000 |
$0.41 |
$6.15K |
| 2025-11-17 |
Heron Elaine J |
Director |
Informative Buy |
23,217 |
$0.39 |
$9.12K |
| 2025-08-15 |
Finney Kevin |
Director |
Informative Buy |
50,000 |
$0.35 |
$17.5K |
| 2025-07-30 |
Finney Kevin |
Director |
Informative Buy |
25,874 |
$0.38 |
$9.83K |
| 2025-07-28 |
Finney Kevin |
Director |
Informative Buy |
20,000 |
$0.40 |
$8K |
| 2025-07-25 |
Finney Kevin |
Director |
Informative Buy |
20,000 |
$0.39 |
$7.8K |
