POSNER BRIAN S purchased 8.9% of their position (2K shares) of DYNE THERAPEUTICS, INC. on the open market
Open‑market purchase worth $33.9K — a moderate purchase. The strongest form of insider conviction signal.
P · 1 purchase
Filed: 6/9/2026ACC: 0001193125-26-264004
+37.15K
Net shares
Net buyer
$33.9K
Total acquired
1
Open market trades
1B · 0S
2
Total transactions
37.15K acquired
Non-Derivative Transactions1
Common Stock
Direct
Shares
+2K
Price / share
$16.94
Trade value
$33.88K
% of position
8.9%
6/8/2026
22.50K→24.50K
Total
Net shares
+2K
Net value
$33.88K
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 6/8/2026 | P · Purchase | +2K | $16.94 | $33.88K | 8.9% | 22.50K | 24.50K |
| Total | +2K | $33.88K | ||||||
Derivative Transactions1
Stock option (right to buy)
Direct
Converts to
Common Stock
35.15K shares
Shares
+35.15K
Strike price
17.04
Held after
35.15K
Exercisable
—
6/5/2026
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Stock option (right to buy) Direct | Common Stock35.15K shares | 6/5/2026 | A · Award | +35.15K | 17.04 | — | 35.15K |