SEC Insider Transactions from Kersten Dirk.

Last updated: 2026-03-16 13:00 UTC | Total transactions: 85

Kersten Dirk sold Dyne Therapeutics, Inc. ($DYN) shares on the open market five times in the last 365 days, totaling $15.7 million. His most recent sale occurred on March 11, 2026. These sales rank 804th among 11,678 individual insiders, outperforming the average of $8.6 million per seller across 6.4 transactions. Dirk made no open market purchases during this period.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
March 11, 2026 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 129672 $19.52 4,644,386.0000 142,824,687 2.72% 0.09%
March 10, 2026 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 219758 $19.33 5,055,916.0000 142,824,687 4.17% 0.15%
March 10, 2026 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 281858 $19.80 4,774,058.0000 142,824,687 5.57% 0.20%
March 9, 2026 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 177690 $17.72 5,285,156.0000 142,824,687 3.25% 0.12%
March 10, 2026 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 9482 $18.21 5,275,674.0000 142,824,687 0.18% 0.01%
May 30, 2025 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found A Stock option (right to buy) 35000 $0.00 35,000.0000 113,121,357 9999.99% 0.03%
Dec. 6, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 101675 $29.34 5,497,283.0000 0 1.82% 0.00%
Dec. 9, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 34437 $29.18 5,462,846.0000 0 0.63% 0.00%
Dec. 4, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 135039 $29.39 5,602,764.0000 0 2.35% 0.00%
Dec. 5, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 3806 $29.05 5,598,958.0000 0 0.07% 0.00%
Dec. 2, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 79973 $29.66 5,768,763.0000 0 1.37% 0.00%
Dec. 2, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 1228 $30.37 5,767,535.0000 0 0.02% 0.00%
Dec. 3, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 29732 $29.05 5,737,803.0000 0 0.52% 0.00%
Nov. 13, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 10803 $35.24 62,301.0000 0 14.78% 0.00%
Nov. 14, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 8929 $32.82 5,786,435.0000 0 0.15% 0.00%
Oct. 18, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 13414 $35.16 5,868,589.0000 0 0.23% 0.00%
Oct. 21, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 121 $35.06 5,868,468.0000 0 0.00% 0.00%
Oct. 16, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 23671 $35.35 5,895,016.0000 0 0.40% 0.00%
Oct. 17, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 13013 $35.17 5,882,003.0000 0 0.22% 0.00%
Oct. 3, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 5441 $35.13 5,918,687.0000 0 0.09% 0.00%
Oct. 2, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 21518 $35.38 5,924,128.0000 0 0.36% 0.00%
Oct. 1, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 8423 $35.16 5,945,646.0000 0 0.14% 0.00%
Sept. 27, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 32 $35.00 5,985,011.0000 0 0.00% 0.00%
Sept. 30, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 29007 $35.47 5,956,004.0000 0 0.48% 0.00%
Sept. 30, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 1935 $36.02 5,954,069.0000 0 0.03% 0.00%
Sept. 25, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 2357 $35.06 5,986,303.0000 0 0.04% 0.00%
Sept. 26, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 1260 $35.29 5,985,043.0000 0 0.02% 0.00%
Sept. 20, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 471 $37.01 6,029,491.0000 0 0.01% 0.00%
Sept. 20, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 78940 $36.45 6,029,962.0000 0 1.29% 0.00%
Sept. 23, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 36221 $35.19 5,993,270.0000 0 0.60% 0.00%
Sept. 23, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 4610 $36.33 5,988,660.0000 0 0.08% 0.00%
Sept. 18, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 1554 $35.03 6,187,641.0000 0 0.03% 0.00%
Sept. 19, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 27767 $35.74 6,159,874.0000 0 0.45% 0.00%
Sept. 19, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 50972 $36.41 6,108,902.0000 0 0.83% 0.00%
Sept. 17, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 3272 $35.13 6,189,195.0000 0 0.05% 0.00%
Sept. 16, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 1320 $35.04 6,192,467.0000 0 0.02% 0.00%
Sept. 5, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 1577 $35.03 6,193,787.0000 0 0.03% 0.00%
Aug. 30, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 6204 $46.01 6,195,364.0000 0 0.10% 0.00%
Aug. 30, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 25096 $45.49 6,201,568.0000 0 0.40% 0.00%
Aug. 29, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 45640 $45.19 6,237,432.0000 0 0.73% 0.00%
Aug. 29, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 10768 $45.81 6,226,664.0000 0 0.17% 0.00%
Aug. 28, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 61467 $44.94 6,283,072.0000 0 0.97% 0.00%
Aug. 28, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 16386 $44.41 6,344,539.0000 0 0.26% 0.00%
Aug. 27, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 65403 $44.28 6,360,925.0000 0 1.02% 0.00%
Aug. 26, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 77963 $45.23 6,437,862.0000 0 1.20% 0.00%
Aug. 26, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 11534 $45.79 6,426,328.0000 0 0.18% 0.00%
Aug. 22, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 413 $46.97 6,600,913.0000 0 0.01% 0.00%
Aug. 22, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 94908 $45.82 6,601,326.0000 0 1.42% 0.00%
Aug. 23, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 20955 $45.82 6,579,958.0000 0 0.32% 0.00%
Aug. 23, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 64133 $46.37 6,515,825.0000 0 0.97% 0.00%
Aug. 21, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 71245 $47.01 6,696,234.0000 0 1.05% 0.00%
Aug. 20, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 43057 $45.68 6,875,780.0000 0 0.62% 0.00%
Aug. 20, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 35457 $46.94 6,840,323.0000 0 0.52% 0.00%
Aug. 20, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 8326 $47.30 6,831,997.0000 0 0.12% 0.00%
Aug. 21, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 64518 $46.52 6,767,479.0000 0 0.94% 0.00%
Aug. 19, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 5760 $46.59 6,918,837.0000 0 0.08% 0.00%
Aug. 16, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 34485 $44.52 7,133,027.0000 0 0.48% 0.00%
Aug. 16, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 85086 $45.35 7,047,941.0000 0 1.19% 0.00%
Aug. 16, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 3072 $46.19 7,044,869.0000 0 0.04% 0.00%
Aug. 19, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 30448 $45.10 7,014,421.0000 0 0.43% 0.00%
Aug. 19, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 89824 $46.01 6,924,597.0000 0 1.28% 0.00%
Aug. 14, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 100650 $43.67 7,348,403.0000 0 1.35% 0.00%
Aug. 15, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 49601 $45.67 7,167,512.0000 0 0.69% 0.00%
Aug. 15, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 131290 $45.25 7,217,113.0000 0 1.79% 0.00%
Aug. 9, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 50736 $42.55 7,702,958.0000 0 0.65% 0.00%
Aug. 12, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 26416 $42.74 7,635,114.0000 0 0.34% 0.00%
Aug. 12, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 52076 $43.42 7,583,038.0000 0 0.68% 0.00%
Aug. 13, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 24378 $42.08 7,558,660.0000 0 0.32% 0.00%
Aug. 13, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 88179 $42.78 7,470,481.0000 0 1.17% 0.00%
Aug. 13, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 21428 $43.57 7,449,053.0000 0 0.29% 0.00%
Aug. 8, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 6377 $40.74 7,838,987.0000 0 0.08% 0.00%
Aug. 8, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 16357 $42.97 7,822,630.0000 0 0.21% 0.00%
Aug. 8, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 68936 $42.87 7,753,694.0000 0 0.88% 0.00%
Aug. 9, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 40268 $43.44 7,662,690.0000 0 0.52% 0.00%
Aug. 9, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 1160 $44.04 7,661,530.0000 0 0.02% 0.00%
Aug. 9, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 1160 $44.04 7,661,530.0000 0 0.02% 0.00%
Aug. 8, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 16357 $42.97 7,822,630.0000 0 0.21% 0.00%
Aug. 8, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 68936 $42.87 7,753,694.0000 0 0.88% 0.00%
Aug. 9, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 50736 $42.55 7,702,958.0000 0 0.65% 0.00%
Aug. 9, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 40268 $43.44 7,662,690.0000 0 0.52% 0.00%
Aug. 8, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found S Common Stock 6377 $40.74 7,838,987.0000 0 0.08% 0.00%
May 22, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found A Stock option (right to buy) 25133 $0.00 25,133.0000 0 9999.99% 0.00%
Jan. 9, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found P Common Stock 1428571 $17.50 1,428,571.0000 0 9999.99% 0.00%
Jan. 9, 2024 Dyne Therapeutics, Inc. $DYN Kersten Dirk Not found P Common Stock 285714 $17.50 6,416,793.0000 0 4.66% 0.00%
May 24, 2023 Dyne Therapeutics, Inc. $DYN Kersten Dirk Director A Stock Option (right to buy) 24900 $0.00 24,900.0000 0 9999.99% 0.00%