SOHN CATHERINE A. purchased 50.0% of their position (500.00 shares) of ALTIMMUNE, INC. on the open market
Open‑market purchase worth $2.1K — a major conviction buy. The strongest form of insider conviction signal.
P · 1 purchase
Filed: 1/5/2026ACC: 0001555132-26-000002
+500.00
Net shares
Net buyer
$2.1K
Total acquired
1
Open market trades
1B · 0S
1
Total transactions
500.00 acquired
Non-Derivative Transactions1
Common Stock, par value $0.0001
Direct
Shares
+500.00
Price / share
$4.24
Trade value
$2.12K
% of position
50.0%
1/5/2026
1K→1.50K
Total
Net shares
+500.00
Net value
$2.12K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock, par value $0.0001 Direct | 1/5/2026 | P · Purchase | +500.00 | $4.24 | $2.12K | 50.0% | 1K | 1.50K |
| Total | +500.00 | $2.12K | ||||||
Derivative Transactions0
No derivative transactions reported