InsiderFlow

Altimmune, Inc.

$3.52-0.08 (-2.34%)

Prev Close

$3.60

Open

$3.62

High

$3.68

Low

$3.47

Volume

2.14M

Market Cap

$342.0M

P/E

Div Yield

Over the past 12 months, insider activity at Altimmune, Inc. (ALT) has been mixed between buying and selling, with 9 insider purchases totaling $244.2K and 10 insider sales totaling $437.5K. The most recent insider transaction was by Durso Jerome Benedict (director, officer: President and CEO), who purchased $70.8K worth of shares on Mar 9, 2026. Altimmune, Inc. operates in the Healthcare sector, within the Biotechnology industry, with a market cap of $342.0M.

Buys (12M)

9

$244.2K

Sells (12M)

10

$437.5K

Net Activity

Net Seller

$193.4K

Active Insiders

10

last 12 mo

ALT Price Chart

ALT Insider Trading Activity

DateInsiderRoleTypeSharesAvg PriceValueShares After
Mar 9, 2026Durso Jerome Benedictdirector, officer: President and CEOBuy20,000$3.54$70.8K32,500
Mar 9, 2026WEAVER GREGORY Lofficer: Chief Financial OfficerBuy5,000$3.54$17.7K28,078
Jan 30, 2026Garg Vipin KDirectorSell11,632$5.60$65.1K0
Jan 30, 2026Roberts M ScotChief Scientific OfficerSell5,188$5.58$28.9K0
Jan 27, 2026Garg Vipin KDirectorSell17,898$6.18$110.6K0
Jan 27, 2026Jordt Raymond MChief Business OfficerSell4,229$6.18$26.1K0
Jan 27, 2026Roberts M ScotChief Scientific OfficerSell4,748$6.18$29.3K0
Jan 25, 2026Garg Vipin KDirectorSell17,984$5.50$98.9K0
Jan 25, 2026Jordt Raymond MChief Business OfficerSell3,855$5.50$21.2K0
Jan 25, 2026Roberts M ScotChief Scientific OfficerSell4,373$5.50$24.1K0
Jan 9, 2026Pisano WaynedirectorBuy5,000$4.08$20.4K13,498
Jan 8, 2026Pisano WayneDirectorBuy5,000$4.08$20.4K0
Jan 5, 2026Sohn Catherine A.DirectorBuy1,000$4.24$4.2K1,500
Jan 1, 2026Jordt Raymond MChief Business OfficerSell2,475$3.61$8.9K0
Dec 29, 2025Jorkasky DianeDirectorBuy527$3.80$2.0K0
Dec 23, 2025GILL JOHNDirectorBuy12,500$4.10$51.3K0
Dec 22, 2025Durso Jerome BenedictDirectorBuy12,500$4.13$51.6K0
Nov 11, 2025WEAVER GREGORY LChief Financial OfficerSell5,672$4.28$24.3K0
Mar 17, 2025Sohn Catherine A.DirectorBuy1,000$5.78$5.8K0
Mar 13, 2025WEAVER GREGORY LChief Financial OfficerBuy10,000$5.20$52.0K0
Jan 30, 2025Garg Vipin KPresident and CEOSell27,214$6.79$184.9K0
Jan 30, 2025Harris Matthew ScottChief Medical OfficerSell7,990$6.78$54.2K0
Jan 30, 2025Roberts M ScotChief Scientific OfficerSell6,826$6.78$46.3K0
Jan 25, 2025Garg Vipin KPresident and CEOSell18,157$6.98$126.7K0
Jan 25, 2025Harris Matthew ScottChief Medical OfficerSell4,994$6.98$34.9K0
Jan 25, 2025Jordt Raymond MChief Business OfficerSell3,862$6.98$27.0K0
Jan 25, 2025Roberts M ScotChief Scientific OfficerSell4,264$6.98$29.8K0
Jan 1, 2025Jordt Raymond MChief Business OfficerSell2,485$7.21$17.9K0
Aug 19, 2024Drutz DavidDirectorSell16,011$6.90$110.5K0
Feb 1, 2024Garg Vipin KPresident and CEOSell15,689$9.58$150.3K0
Feb 1, 2024Harris Matthew ScottChief Medical OfficerSell4,133$9.56$39.5K0
Feb 1, 2024Roberts M ScotChief Scientific OfficerSell4,131$9.56$39.5K0
Jan 30, 2024Eisenstadt Richard IChief Financial OfficerSell2,175$9.80$21.3K0
Jan 30, 2024Garg Vipin KPresident and CEOSell11,697$9.80$114.6K0
Jan 30, 2024Harris Matthew ScottChief Medical OfficerSell2,709$9.80$26.5K0
Jan 30, 2024Roberts M ScotChief Scientific OfficerSell2,709$9.80$26.5K0
Jan 1, 2024Jordt Raymond MChief Business OfficerSell2,503$11.25$28.2K0
Dec 29, 2023Eisenstadt Richard IChief Financial OfficerSell3,044$11.25$34.2K0
Aug 15, 2023Drutz DavidDirectorBuy300$2.88$862.500
Mar 24, 2023Eisenstadt Richard IChief Financial OfficerBuy10,000$4.31$43.1K0
Mar 23, 2023Drutz DavidDirectorBuy9,000$4.27$38.4K0
Mar 23, 2023Harris Matthew ScottChief Medical OfficerBuy10,000$4.22$42.2K0
Feb 2, 2023Garg Vipin KPresident and CEOSell8,422$15.04$126.7K0
Feb 2, 2023Harris Matthew ScottChief Medical OfficerSell2,364$15.04$35.6K0
Feb 2, 2023Roberts M ScotChief Scientific OfficerSell2,375$15.04$35.7K0
Jan 31, 2023Garg Vipin KPresident and CEOSell7,658$13.78$105.5K0
Jan 31, 2023Harris Matthew ScottChief Medical OfficerSell2,183$13.78$30.1K0
Jan 31, 2023Roberts M ScotChief Scientific OfficerSell2,183$13.78$30.1K0
Dec 31, 2022Eisenstadt Richard IChief Financial OfficerSell3,028$16.45$49.8K0
Dec 22, 2022Pisano WayneDirectorSell20,000$15.01$300.3K0
Nov 30, 2022Garg Vipin KPresident and CEOSell3,007$9.95$29.9K0
Oct 30, 2022Garg Vipin KPresident and CEOSell3,007$12.77$38.4K0
Sep 30, 2022Garg Vipin KPresident and CEOSell3,008$12.77$38.4K0
Aug 30, 2022Garg Vipin KPresident and CEOSell23,007$19.88$457.3K0
Aug 12, 2022Garg Vipin KPresident and CEOSell15,000$15.06$225.9K0
Aug 12, 2022GILL JOHNDirectorSell2,714$15.00$40.7K0
Jul 30, 2022Garg Vipin KPresident and CEOSell3,007$12.01$36.1K0
Jul 1, 2022Roberts M ScotChief Scientific OfficerSell37,164$12.00$446.0K0
Jun 30, 2022Garg Vipin KPresident and CEOSell3,007$11.70$35.2K0
Jun 29, 2022Roberts M ScotChief Scientific OfficerSell5,462$12.00$65.5K0
Jun 27, 2022Jorkasky DianeDirectorSell17,610$11.75$206.9K0
Jun 27, 2022Roberts M ScotChief Scientific OfficerSell37,352$12.00$448.3K0
Jun 15, 2022Drutz DavidDirectorBuy1,000$8.00$8.0K0
May 30, 2022Garg Vipin KPresident and CEOSell3,008$5.03$15.1K0
May 24, 2022Drutz DavidDirectorBuy1,200$4.50$5.4K0
Apr 30, 2022Garg Vipin KPresident and CEOSell3,008$4.52$13.6K0
Mar 30, 2022Garg Vipin KPresident and CEOSell3,007$6.05$18.2K0
Feb 28, 2022Garg Vipin KPresident and CEOSell3,007$7.41$22.3K0
Feb 28, 2022Harris Matthew ScottChief Medical OfficerSell30,000$7.52$225.6K0
Jan 31, 2022Garg Vipin KPresident and CEOSell7,655$7.98$61.1K0
Jan 31, 2022Harris Matthew ScottChief Medical OfficerSell2,183$7.98$17.4K0
Jan 31, 2022Roberts M ScotChief Scientific OfficerSell2,183$7.98$17.4K0
Jan 30, 2022Garg Vipin KPresident and CEOSell2,355$7.20$17.0K0
Dec 30, 2021Garg Vipin KPresident and CEOSell3,007$8.93$26.9K0
Nov 30, 2021Garg Vipin KPresident and CEOSell3,007$10.49$31.5K0
Oct 30, 2021Garg Vipin KPresident and CEOSell3,007$10.80$32.5K0
Sep 30, 2021Garg Vipin KPresident and CEOSell3,007$11.31$34.0K0
Aug 30, 2021Garg Vipin KPresident and CEOSell3,008$14.09$42.4K0
Jul 30, 2021Garg Vipin KPresident and CEOSell3,007$9.07$27.3K0
Jun 30, 2021Garg Vipin KPresident and CEOSell3,007$9.85$29.6K0
May 30, 2021Garg Vipin KPresident and CEOSell2,577$12.65$32.6K0
Apr 30, 2021Garg Vipin KPresident and CEOSell1,999$14.47$28.9K0
Mar 30, 2021Garg Vipin KPresident and CEOSell1,998$13.55$27.1K0
Mar 1, 2021Hodges PhilipDirectorSell6,000$16.08$96.5K0
Feb 28, 2021Garg Vipin KPresident and CEOSell1,998$15.94$31.8K0

ALT Insider Buying Activity

The following table shows recent insider purchases of Altimmune, Inc. (ALT) stock reported via SEC Form 4 filings.

DateInsiderRoleTypeSharesAvg PriceValueShares After
Mar 9, 2026Durso Jerome Benedictdirector, officer: President and CEOBuy20,000$3.54$70.8K32,500
Mar 9, 2026WEAVER GREGORY Lofficer: Chief Financial OfficerBuy5,000$3.54$17.7K28,078
Jan 9, 2026Pisano WaynedirectorBuy5,000$4.08$20.4K13,498
Jan 8, 2026Pisano WayneDirectorBuy5,000$4.08$20.4K0
Jan 5, 2026Sohn Catherine A.DirectorBuy1,000$4.24$4.2K1,500
Dec 29, 2025Jorkasky DianeDirectorBuy527$3.80$2.0K0
Dec 23, 2025GILL JOHNDirectorBuy12,500$4.10$51.3K0
Dec 22, 2025Durso Jerome BenedictDirectorBuy12,500$4.13$51.6K0
Mar 17, 2025Sohn Catherine A.DirectorBuy1,000$5.78$5.8K0
Mar 13, 2025WEAVER GREGORY LChief Financial OfficerBuy10,000$5.20$52.0K0
Aug 15, 2023Drutz DavidDirectorBuy300$2.88$862.500
Mar 24, 2023Eisenstadt Richard IChief Financial OfficerBuy10,000$4.31$43.1K0
Mar 23, 2023Drutz DavidDirectorBuy9,000$4.27$38.4K0
Mar 23, 2023Harris Matthew ScottChief Medical OfficerBuy10,000$4.22$42.2K0
Jun 15, 2022Drutz DavidDirectorBuy1,000$8.00$8.0K0
May 24, 2022Drutz DavidDirectorBuy1,200$4.50$5.4K0

ALT Insider Selling Activity

The following table shows recent insider sales of Altimmune, Inc. (ALT) stock reported via SEC Form 4 filings.

DateInsiderRoleTypeSharesAvg PriceValueShares After
Jan 30, 2026Garg Vipin KDirectorSell11,632$5.60$65.1K0
Jan 30, 2026Roberts M ScotChief Scientific OfficerSell5,188$5.58$28.9K0
Jan 27, 2026Garg Vipin KDirectorSell17,898$6.18$110.6K0
Jan 27, 2026Jordt Raymond MChief Business OfficerSell4,229$6.18$26.1K0
Jan 27, 2026Roberts M ScotChief Scientific OfficerSell4,748$6.18$29.3K0
Jan 25, 2026Garg Vipin KDirectorSell17,984$5.50$98.9K0
Jan 25, 2026Jordt Raymond MChief Business OfficerSell3,855$5.50$21.2K0
Jan 25, 2026Roberts M ScotChief Scientific OfficerSell4,373$5.50$24.1K0
Jan 1, 2026Jordt Raymond MChief Business OfficerSell2,475$3.61$8.9K0
Nov 11, 2025WEAVER GREGORY LChief Financial OfficerSell5,672$4.28$24.3K0
Jan 30, 2025Garg Vipin KPresident and CEOSell27,214$6.79$184.9K0
Jan 30, 2025Harris Matthew ScottChief Medical OfficerSell7,990$6.78$54.2K0
Jan 30, 2025Roberts M ScotChief Scientific OfficerSell6,826$6.78$46.3K0
Jan 25, 2025Garg Vipin KPresident and CEOSell18,157$6.98$126.7K0
Jan 25, 2025Harris Matthew ScottChief Medical OfficerSell4,994$6.98$34.9K0
Jan 25, 2025Jordt Raymond MChief Business OfficerSell3,862$6.98$27.0K0
Jan 25, 2025Roberts M ScotChief Scientific OfficerSell4,264$6.98$29.8K0
Jan 1, 2025Jordt Raymond MChief Business OfficerSell2,485$7.21$17.9K0
Aug 19, 2024Drutz DavidDirectorSell16,011$6.90$110.5K0
Feb 1, 2024Garg Vipin KPresident and CEOSell15,689$9.58$150.3K0
Feb 1, 2024Harris Matthew ScottChief Medical OfficerSell4,133$9.56$39.5K0
Feb 1, 2024Roberts M ScotChief Scientific OfficerSell4,131$9.56$39.5K0
Jan 30, 2024Eisenstadt Richard IChief Financial OfficerSell2,175$9.80$21.3K0
Jan 30, 2024Garg Vipin KPresident and CEOSell11,697$9.80$114.6K0
Jan 30, 2024Harris Matthew ScottChief Medical OfficerSell2,709$9.80$26.5K0
Jan 30, 2024Roberts M ScotChief Scientific OfficerSell2,709$9.80$26.5K0
Jan 1, 2024Jordt Raymond MChief Business OfficerSell2,503$11.25$28.2K0
Dec 29, 2023Eisenstadt Richard IChief Financial OfficerSell3,044$11.25$34.2K0
Feb 2, 2023Garg Vipin KPresident and CEOSell8,422$15.04$126.7K0
Feb 2, 2023Harris Matthew ScottChief Medical OfficerSell2,364$15.04$35.6K0
Feb 2, 2023Roberts M ScotChief Scientific OfficerSell2,375$15.04$35.7K0
Jan 31, 2023Garg Vipin KPresident and CEOSell7,658$13.78$105.5K0
Jan 31, 2023Harris Matthew ScottChief Medical OfficerSell2,183$13.78$30.1K0
Jan 31, 2023Roberts M ScotChief Scientific OfficerSell2,183$13.78$30.1K0
Dec 31, 2022Eisenstadt Richard IChief Financial OfficerSell3,028$16.45$49.8K0
Dec 22, 2022Pisano WayneDirectorSell20,000$15.01$300.3K0
Nov 30, 2022Garg Vipin KPresident and CEOSell3,007$9.95$29.9K0
Oct 30, 2022Garg Vipin KPresident and CEOSell3,007$12.77$38.4K0
Sep 30, 2022Garg Vipin KPresident and CEOSell3,008$12.77$38.4K0
Aug 30, 2022Garg Vipin KPresident and CEOSell23,007$19.88$457.3K0
Aug 12, 2022Garg Vipin KPresident and CEOSell15,000$15.06$225.9K0
Aug 12, 2022GILL JOHNDirectorSell2,714$15.00$40.7K0
Jul 30, 2022Garg Vipin KPresident and CEOSell3,007$12.01$36.1K0
Jul 1, 2022Roberts M ScotChief Scientific OfficerSell37,164$12.00$446.0K0
Jun 30, 2022Garg Vipin KPresident and CEOSell3,007$11.70$35.2K0
Jun 29, 2022Roberts M ScotChief Scientific OfficerSell5,462$12.00$65.5K0
Jun 27, 2022Jorkasky DianeDirectorSell17,610$11.75$206.9K0
Jun 27, 2022Roberts M ScotChief Scientific OfficerSell37,352$12.00$448.3K0
May 30, 2022Garg Vipin KPresident and CEOSell3,008$5.03$15.1K0
Apr 30, 2022Garg Vipin KPresident and CEOSell3,008$4.52$13.6K0
Mar 30, 2022Garg Vipin KPresident and CEOSell3,007$6.05$18.2K0
Feb 28, 2022Garg Vipin KPresident and CEOSell3,007$7.41$22.3K0
Feb 28, 2022Harris Matthew ScottChief Medical OfficerSell30,000$7.52$225.6K0
Jan 31, 2022Garg Vipin KPresident and CEOSell7,655$7.98$61.1K0
Jan 31, 2022Harris Matthew ScottChief Medical OfficerSell2,183$7.98$17.4K0
Jan 31, 2022Roberts M ScotChief Scientific OfficerSell2,183$7.98$17.4K0
Jan 30, 2022Garg Vipin KPresident and CEOSell2,355$7.20$17.0K0
Dec 30, 2021Garg Vipin KPresident and CEOSell3,007$8.93$26.9K0
Nov 30, 2021Garg Vipin KPresident and CEOSell3,007$10.49$31.5K0
Oct 30, 2021Garg Vipin KPresident and CEOSell3,007$10.80$32.5K0
Sep 30, 2021Garg Vipin KPresident and CEOSell3,007$11.31$34.0K0
Aug 30, 2021Garg Vipin KPresident and CEOSell3,008$14.09$42.4K0
Jul 30, 2021Garg Vipin KPresident and CEOSell3,007$9.07$27.3K0
Jun 30, 2021Garg Vipin KPresident and CEOSell3,007$9.85$29.6K0
May 30, 2021Garg Vipin KPresident and CEOSell2,577$12.65$32.6K0
Apr 30, 2021Garg Vipin KPresident and CEOSell1,999$14.47$28.9K0
Mar 30, 2021Garg Vipin KPresident and CEOSell1,998$13.55$27.1K0
Mar 1, 2021Hodges PhilipDirectorSell6,000$16.08$96.5K0
Feb 28, 2021Garg Vipin KPresident and CEOSell1,998$15.94$31.8K0

ALT Insiders

Durso Jerome Benedict

director, officer: President and CEO

Bought $70.8K
1 tradesLast: Mar 6, 2026
WEAVER GREGORY L

officer: Chief Financial Officer

Bought $17.7K
1 tradesLast: Mar 6, 2026
Roberts M Scot

Chief Scientific Officer

Sold $1.27M
18 tradesLast: Feb 2, 2026
Garg Vipin K

Director

Sold $274.7K
3 tradesLast: Jan 30, 2026
Jordt Raymond M

Chief Business Officer

Sold $129.3K
6 tradesLast: Jan 27, 2026
Pisano Wayne

director

Bought $20.4K
1 tradesLast: Jan 8, 2026
Pisano Wayne

Director

Bought $20.4KSold $300.3K
2 tradesLast: Jan 8, 2026
Sohn Catherine A.

director

Bought $2.1K
1 tradesLast: Jan 5, 2026
Sohn Catherine A.

Director

Bought $7.9K
2 tradesLast: Jan 5, 2026
Jorkasky Diane

Director

Bought $2.0KSold $206.9K
2 tradesLast: Dec 29, 2025
GILL JOHN

Director

Bought $51.3KSold $40.7K
2 tradesLast: Dec 23, 2025
Durso Jerome Benedict

Director

Bought $51.6K
1 tradesLast: Dec 22, 2025
WEAVER GREGORY L

Chief Financial Officer

Bought $52.0KSold $24.3K
2 tradesLast: Nov 11, 2025
Garg Vipin K

President and CEO

Sold $2.16M
34 tradesLast: Feb 2, 2025
Harris Matthew Scott

Chief Medical Officer

Bought $42.2KSold $463.8K
12 tradesLast: Feb 2, 2025
Drutz David

Director

Bought $52.7KSold $110.5K
6 tradesLast: Aug 19, 2024
Eisenstadt Richard I

Chief Financial Officer

Bought $43.1KSold $105.4K
4 tradesLast: Jan 30, 2024
Hodges Philip

Director

Sold $96.5K
1 tradesLast: Mar 1, 2021