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P

Posner Brian S

Open-market buys
6
$236K total
Open-market sells
3
$145K total
Tracking since
Mar 2026
Activity timeline
Open-market buy — $40K
Dyne Therapeutics, Inc. · Oct 2, 2026
Open-market buy — $34K
Dyne Therapeutics, Inc. · Jun 8, 2026
Open-market trades from the last two years.

7 more trades. A free account shows you more; Premium shows every one.

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Holdings as last reported
122,175 Common Shares, $.0011 par value per share in ACGL
Held directly · as of 2026-05-05
35,152 Stock option (right to buy) in DYN
Held directly · as of 2026-06-05

1 more holdings. A free account shows you more; Premium shows every one.

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Companies touched
Dyne Therapeutics, Inc.
CIK 0001818794
ARCH CAPITAL GROUP LTD.
CIK 0000947484