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DYN

UNKNOWN

Dyne Therapeutics, Inc.

CIK: 0001818794

Strong Sell (90% confidence)

Last activity: 4 days ago

Financial Metrics

As of Dec 31, 2025 (10-K)

Insider Roster (5 total, 5 active)

Insider Buys Sells Net Value Holdings
Kersten Dirk
OTHER
0 5 -$15.68M
4,644,386 shares
$90.64M
Posner Brian S
OTHER
3 0 $118K
15,500 shares
$265K
Cox John
CEO & President
0 2 -$96K
374,145 shares
$5.57M
Kerr Douglas
Chief Medical Officer
0 2 -$32K
171,606 shares
$2.56M
Friedl-Naderer Johanna
Chief Commercial Officer
0 2 -$5K
154,581 shares
$2.30M

Recent Transactions

BUY Posner Brian S (OTHER)

2,000 shares @ $17.08

$34K

Mar 30, 2026

Conviction: | View SEC Filing →
SELL Kersten Dirk (OTHER)

129,672 shares @ $19.52

$2.53M

Mar 11, 2026

Conviction: | View SEC Filing →
BUY Posner Brian S (OTHER)

2,000 shares @ $19.35

$39K

Mar 11, 2026

Conviction: | View SEC Filing →
SELL Kersten Dirk (OTHER)

281,858 shares @ $19.80

$5.58M

Mar 10, 2026

Conviction: | View SEC Filing →
SELL Kersten Dirk (OTHER)

219,758 shares @ $19.32

$4.25M

Mar 10, 2026

Conviction: | View SEC Filing →
SELL Kersten Dirk (OTHER)

9,482 shares @ $18.21

$173K

Mar 10, 2026

Conviction: | View SEC Filing →
SELL Kersten Dirk (OTHER)

177,690 shares @ $17.72

$3.15M

Mar 9, 2026

Conviction: | View SEC Filing →
BUY Posner Brian S (OTHER)

3,000 shares @ $15.06

$45K

Mar 6, 2026

Conviction: | View SEC Filing →
SELL Cox John (CEO & President)

2,732 shares @ $14.90

$41K

Mar 5, 2026

Conviction: | View SEC Filing →
SELL Kerr Douglas (Chief Medical Officer)

904 shares @ $14.90

$13K

Mar 5, 2026

Conviction: | View SEC Filing →
SELL Friedl-Naderer Johanna (Chief Commercial Officer)

148 shares @ $14.90

$2K

Mar 5, 2026

Conviction: | View SEC Filing →
SELL Cox John (CEO & President)

2,662 shares @ $20.72

$55K

Dec 5, 2025

Conviction: | View SEC Filing →
SELL Kerr Douglas (Chief Medical Officer)

880 shares @ $20.72

$18K

Dec 5, 2025

Conviction: | View SEC Filing →
SELL Friedl-Naderer Johanna (Chief Commercial Officer)

144 shares @ $20.72

$3K

Dec 5, 2025

Conviction: | View SEC Filing →

⚠️ Important Disclaimer

• This is AI-generated analysis for educational purposes only, not financial advice.

• Insider trading data is derived from SEC Form 4 filings and may contain errors.

• Always conduct your own research and consult qualified financial advisors before making investment decisions.