FROST MARK T (Interim CFO) purchased 40.0% of their position (5K shares) of HARVARD BIOSCIENCE INC on the open market
Open‑market purchase worth $25.0K — a major conviction buy. The strongest form of insider conviction signal.
P · 1 purchase
Filed: 4/1/2026ACC: 0001171843-26-002155
Officer· Interim CFO
Since May 2025
+5K
Net shares
Net buyer
$25.0K
Total acquired
1
Open market trades
1B · 0S
1
Total transactions
5K acquired
Non-Derivative Transactions1
Common Stock
Direct
Shares
+5K
Price / share
$5.00
Trade value
$25K
% of position
40.0%
3/16/2026
12.50K→17.50K
Total
Net shares
+5K
Net value
$25K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 3/16/2026 | P · Purchase | +5K | $5.00 | $25K | 40.0% | 12.50K | 17.50K |
| Total | +5K | $25K | ||||||
Derivative Transactions0
No derivative transactions reported