Form 4 Tracker
Dyne Therapeutics, Inc.
DYN

44 insider filings · Latest: Jun 26, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Apr 20, 2026Apr 22 10:27 PMJason P RhodesDirector
Sale
272,049$20.06$5.5M1,402,200(I)

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Apr 22, 2026Apr 22 8:54 PMAtlas Venture Opportunity Fund I, LP
Proposed Sale
59,663$19.21$1.1M

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Apr 22, 2026Apr 22 8:53 PMAtlas Venture Opportunity Fund II, LP
Proposed Sale
75,866$19.21$1.5M

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Apr 22, 2026Apr 22 8:53 PMAtlas Venture Fund XI, LP
Proposed Sale
150,942$19.21$2.9M

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Apr 22, 2026Apr 22 8:52 PMAtlas Venture Associates XI, LP
Proposed Sale
1,485$19.21$28.5K

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Apr 21, 2026Apr 21 8:54 PMAtlas Venture Fund XI, LP
Proposed Sale
143,749$20.02$2.9M

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Apr 21, 2026Apr 21 8:53 PMAtlas Venture Opportunity Fund I, LP
Proposed Sale
56,820$20.02$1.1M

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Apr 21, 2026Apr 21 8:53 PMAtlas Venture Opportunity Fund II, LP
Proposed Sale
72,315$20.02$1.4M

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Apr 21, 2026Apr 21 8:53 PMAtlas Venture Associates XI, LP
Proposed Sale
1,413$20.02$28.3K

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Apr 20, 2026Apr 21 8:15 PMDirk KerstenDirector
Sale
125,274$20.07$2.5M4,207,525(I)

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Apr 17, 2026Apr 21 8:15 PMDirk KerstenDirector
Sale
211,974$20.29$4.3M4,332,799(I)

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Apr 20, 2026Apr 20 8:44 PMAtlas Venture Fund XI, LP
Proposed Sale
142,571$20.41$2.9M

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Apr 20, 2026Apr 20 8:44 PMAtlas Venture Opportunity Fund I, LP
Proposed Sale
56,355$20.41$1.2M

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Apr 20, 2026Apr 20 8:44 PMAtlas Venture Opportunity Fund II, LP
Proposed Sale
71,722$20.41$1.5M

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Apr 20, 2026Apr 20 8:43 PMAtlas Venture Associates XI, LP
Proposed Sale
1,401$20.41$28.6K

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Apr 16, 2026Apr 17 8:05 PMDirk KerstenDirector
Sale
17,773$20.71$368.1K4,544,773(I)

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Apr 15, 2026Apr 17 8:05 PMDirk KerstenDirector
Sale
81,840$20.27$1.7M4,562,546(I)

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Apr 1, 2026Apr 3 8:10 PMErick LuceraChief Financial Officer
Sale
5,727$18.64$106.8K125,373(D)

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Mar 30, 2026Apr 1 8:27 PMBrian S PosnerDirector
Purchase
2,000$17.08$34.2K15,500(D)

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Apr 1, 2026Apr 1 8:06 PMLucera Erick
Proposed Sale
5,727$18.64$106.8K

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Jun 22, 2026Jun 23 8:07 PMBarry E GreeneDirector
Grant/Award
57,463$20.8757,463(D)

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Jun 5, 2026Jun 9 9:15 PMEdward HurwitzDirector
Grant/Award
35,152$17.0435,152(D)

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Jun 5, 2026Jun 9 9:13 PMDavid Charles LubnerDirector
Grant/Award
35,152$17.0435,152(D)

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Jun 5, 2026Jun 9 9:13 PMJason P RhodesDirector
Grant/Award
35,152$17.0435,152(D)

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Jun 5, 2026Jun 9 9:12 PMDirk KerstenDirector
Grant/Award
35,152$17.0435,152(D)

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Jun 5, 2026Jun 9 9:12 PMCarlo IncertiDirector
Grant/Award
35,152$17.0435,152(D)

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Jun 5, 2026Jun 9 9:09 PMCatherine Stehman-BreenDirector
Grant/Award
35,152$17.0435,152(D)

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Jun 5, 2026Jun 9 9:06 PMBrian S PosnerDirector
Grant/Award
35,152$17.0435,152(D)

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Feb 12, 2026Feb 17 10:11 PMJohn CoxDirector, CEO & President
Grant/Award
285,000$16.00285,000(D)

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Feb 12, 2026Feb 17 10:10 PMDouglas KerrChief Medical Officer
Grant/Award
130,000$16.00130,000(D)

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Feb 12, 2026Feb 17 10:09 PMJohanna Friedl-NadererChief Commercial Officer
Grant/Award
90,000$16.0090,000(D)

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Feb 12, 2026Feb 17 10:08 PMErick LuceraChief Financial Officer
Grant/Award
105,000$16.00105,000(D)

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