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Altimmune, Inc.

ALT Net buying
CIK 0001326190 #2997 in the set updated 18 Sep 2026
Bought (12 mo)
$370.04K
out of their own pocket, the only kind of buying there is
Sold (12 mo)
$0.00
$0.00 on a plan · $0.00 straight out of an exercise
Sold at will
$0.00
0 of 0 sales
Net
+$370.04K
+$370.04K against sales at will

By person

11 insiders · 11 transactions
Insider
Role
Bought
Sold
Net
Holding
Worth
Change
Durso Jerome Benedict
President and CEO
$213.71K (4)
+$213.71K
62,500
$184.38K
GILL JOHN
Director
$82.60K (2)
+$82.60K
21,700
$64.02K
WEAVER GREGORY L
Chief Financial Officer
$49.20K (2)
+$49.20K
39,831
$117.50K
Pisano Wayne
Director
$20.41K (1)
+$20.41K
13,498
$39.82K
+58.8%
Sohn Catherine A.
Director
$2.12K (1)
+$2.12K
1,500
$4.43K
Jorkasky Diane
Director
$2.00K (1)
+$2.00K
527
$1.55K
Garg Vipin K
Director
424,519
$1.25M
+45.4%
Roberts M Scot
Chief Scientific Officer
113,699
$335.41K
+162.5%
Jordt Raymond M
Chief Business Officer
70,107
$206.82K
+378.2%
Richardson Linda M
Chief Commercial Officer
17,174
$50.66K
Harris Matthew Scott
Chief Medical Officer
16,087
$47.46K
−70.8%

No percentages here. This company's share count has moved by a factor of 2.7 over the window, from 71,124,625 to 194,517,701 shares. A split, a merger or a large issue changes what the company is, and a holding measured at one point in that run is not a fraction of it at another.

Insider
Date
Role
Action
Shares
Price
Amount
Durso Jerome Benedict
13 Aug 2026
President and CEO
Buy
15,000
$2.95
$44.25K
GILL JOHN
6 Apr 2026
Director
Buy
9,200
$3.41
$31.35K
Durso Jerome Benedict
1 Apr 2026
President and CEO
Buy
15,000
$3.14
$47.10K
WEAVER GREGORY L
1 Apr 2026
Chief Financial Officer
Buy
10,000
$3.15
$31.50K
Durso Jerome Benedict
6 Mar 2026
President and CEO
Buy
20,000
$3.54
$70.79K
WEAVER GREGORY L
6 Mar 2026
Chief Financial Officer
Buy
5,000
$3.54
$17.70K
Pisano Wayne
8 Jan 2026
Director
Buy
5,000
$4.08
$20.41K
Sohn Catherine A.
5 Jan 2026
Director
Buy
500
$4.24
$2.12K
Jorkasky Diane
29 Dec 2025
Director
Buy
527
$3.80
$2.00K
GILL JOHN
23 Dec 2025
Director
Buy
12,500
$4.10
$51.25K
Durso Jerome Benedict
22 Dec 2025
Director
Buy
12,500
$4.13
$51.57K

What was left out

Form 4 filings counted 47
Amendments (4/A) skipped 0
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 0
Sales at will 0
Transactions with no price 0
Shares from compensation/vesting 344,672
History held since 19 Sep 2016