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Altimmune, Inc.

ALT Net buying
CIK 0001326190 #2997 in the set updated 18 Sep 2026
Bought (120 mo)
$24.33M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$8.33M
$0.00 on a plan · $1.80M straight out of an exercise
Sold at will
$6.52M
15 of 24 sales
Net
+$16.00M
+$17.81M against sales at will

By person

29 insiders · 138 transactions
Insider
Role
Bought
Sold
Net
Holding
Worth
Change
Venrock Healthcare Capital Partners III, L.P. entity
10% owner
$22.71M (7)
+$22.71M
3,500,000
$10.33M
+106.3%
PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C. entity
10% owner
$4.41M (3)
−$4.41M
6,626,403
$19.55M
−17.0%
Roberts M Scot
Chief Scientific Officer
$1.98K (1)
$959.77K (4) scheduled
−$957.78K
113,714
$335.46K
VELOCITY PHARMACEUTICAL HOLDINGS LLC entity
10% owner
$957.10K (2)
−$957.10K
1,687,250
$4.98M
−10.6%
SCHAFFER DERACE L
Director
$943.38K (25)
+$943.38K
601,846
$1.78M
Garg Vipin K
Director
$42.00K (1)
$626.21K (2)
−$584.21K
424,519
$1.25M
Pisano Wayne
Director
$29.59K (2)
$402.75K (2) scheduled
−$373.16K
13,498
$39.82K
Harris Matthew Scott
Chief Medical Officer
$42.20K (1)
$265.83K (2) scheduled
−$223.63K
16,087
$47.46K
Durso Jerome Benedict
President and CEO
$213.71K (4)
+$213.71K
62,500
$184.38K
Jorkasky Diane
Director
$2.00K (1)
$206.94K (1) scheduled
−$204.94K
527
$1.55K
Hodges Philip
Director
$143.09K (3)
−$143.09K
26,579
$78.41K
WEAVER GREGORY L
Chief Financial Officer
$101.20K (3)
+$101.20K
39,831
$117.50K
Schafer Klaus
Director
$23.98K (1)
$100.59K (1)
−$76.61K
9,179
$27.08K
GILL JOHN
Director
$86.94K (3)
$141.14K (2)
−$54.19K
21,700
$64.02K
Eisenstadt Richard I
Chief Financial Officer
$43.14K (1)
+$43.14K
45,012
$132.79K
Drutz David
Director
$74.79K (6)
$110.55K (2) scheduled
−$35.76K
76,008
$224.22K
SAYARE MITCHEL
Director
$9.96K (1)
+$9.96K
59,013
$174.09K
Sohn Catherine A.
Director
$7.90K (2)
+$7.90K
1,500
$4.43K
Enright William
President and CEO
$659.88 (1)
+$659.88
365,839
$1.08M
+1,306,468%
Novartis Bioventures Ltd entity
10% owner
8,345,145
$24.62M
+346.9%
RICHMAN ERIC I
Director
908,055
$2.68M
+386.1%
St Peter Steven
Director
205,004
$604.76K
+51.9%
Runge Jeffrey W.
Director
197,700
$583.22K
+25.4%
MACNEILL PHILIP
VP, CFO, Treasurer, Secretary
126,346
$372.72K
+152.7%
Truffle Capital S.A.S. entity
10% owner
76,700
$226.27K
Jordt Raymond M
Chief Business Officer
70,107
$206.82K
+778,867%
Brown William Michael
Chief Financial Officer
17,721
$52.28K
Richardson Linda M
Chief Commercial Officer
17,174
$50.66K
Shutterly Andrew
Acting Chief Financial Officer
11,372
$33.55K
+12.4%

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
Garg Vipin K
31 Aug 2022
President and CEO
Sell
20,000
$20.02
$400.32K
Garg Vipin K
12 Aug 2022
President and CEO
Sell
15,000
$15.06
$225.89K
GILL JOHN
12 Aug 2022
Director
Sell
2,714
$15.00
$40.71K
Hodges Philip
1 Mar 2021
Director
Sell
6,000
$16.08
$96.48K
Hodges Philip
1 Dec 2020
Director
Sell indirect
1,227
$13.54
$16.61K
GILL JOHN
30 Nov 2020
Director
Sell
8,425
$11.92
$100.43K
Hodges Philip
30 Nov 2020
Director
Sell
2,500
$12.00
$30.00K
Harris Matthew Scott
12 Nov 2020
Director
Sell
4,015
$10.02
$40.23K
Pisano Wayne
12 Nov 2020
Director
Sell
10,352
$9.90
$102.48K
Schafer Klaus
12 Nov 2020
Director
Sell
10,150
$9.91
$100.59K
VELOCITY PHARMACEUTICAL HOLDINGS LLC
15 May 2020
10% owner
Sell
30,622
$4.65
$142.39K
VELOCITY PHARMACEUTICAL HOLDINGS LLC
14 May 2020
10% owner
Sell
169,378
$4.81
$814.71K
PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C.
9 Dec 2016
10% owner
Sell indirect
436,324
$3.26
$1.42M
PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C.
8 Dec 2016
10% owner
Sell indirect
440,479
$3.25
$1.43M
PRESCOTT GROUP CAPITAL MANAGEMENT, L.L.C.
7 Dec 2016
10% owner
Sell indirect
477,829
$3.26
$1.56M

What was left out

Form 4 filings counted 336
Amendments (4/A) skipped 1
Filings about a different issuer 0
Unreadable filings 0
Joint filings 19
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 9
Sales at will 15
Transactions with no price 0
Shares from compensation/vesting 14,058,024
Sales filed before the plan box existed 14
History held since 19 Sep 2016