NASDAQ:DCOY | Insider Transactions | Decoy Therapeutics Inc.

DCOY Insider Transactions

133 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–100; provenance stays internal.

DCOY insiders transaction timeline

PurchaseSale
2015-02-03: 1 purchase — Longwood Fund II, L.P.2015-03-30: 1 purchase — Westphal Christoph H2015-04-06: 1 purchase — Westphal Christoph H2015-04-13: 1 purchase — Westphal Christoph H2015-04-20: 1 purchase — Westphal Christoph H2015-04-27: 1 purchase — Westphal Christoph H2015-05-04: 1 purchase — Westphal Christoph H2015-05-11: 1 purchase — Westphal Christoph H2015-05-18: 1 purchase — Westphal Christoph H2015-06-01: 1 purchase — Westphal Christoph H2015-06-08: 1 purchase — Westphal Christoph H2015-06-15: 1 purchase — Westphal Christoph H2015-06-22: 1 purchase — Westphal Christoph H2015-06-29: 1 purchase — Westphal Christoph H2015-07-06: 1 purchase — Westphal Christoph H2015-07-13: 1 purchase — Westphal Christoph H2015-07-20: 1 purchase — Westphal Christoph H2015-07-27: 1 purchase — Westphal Christoph H2015-08-03: 1 purchase — Westphal Christoph H2015-08-10: 1 purchase — Westphal Christoph H2015-08-17: 1 purchase — Westphal Christoph H2015-08-24: 1 purchase — Westphal Christoph H2015-08-31: 1 purchase — Westphal Christoph H2015-09-14: 1 purchase — Westphal Christoph H2015-09-21: 1 purchase — Westphal Christoph H2015-09-28: 1 purchase — Westphal Christoph H2015-10-05: 1 purchase — Westphal Christoph H2015-10-12: 1 purchase — Westphal Christoph H2015-10-19: 1 purchase — Westphal Christoph H2015-10-26: 1 purchase — Westphal Christoph H2015-11-02: 1 purchase — Westphal Christoph H2015-11-09: 1 purchase — Westphal Christoph H2015-11-16: 1 purchase — Westphal Christoph H2015-11-19: 1 purchase — KOZIN MARC D2015-11-23: 1 purchase — Westphal Christoph H2015-11-30: 1 purchase — Westphal Christoph H2015-12-07: 1 purchase — Westphal Christoph H2015-12-14: 1 purchase — Westphal Christoph H2016-03-11: 4 purchases — Longwood Fund II, L.P., Westphal Christoph H, Wessel Thomas and 1 more2016-03-14: 1 purchase — Wessel Thomas2016-03-15: 2 purchases — Westphal Christoph H, Stacy Michelle2016-03-16: 1 purchase — Westphal Christoph H2016-03-17: 1 purchase — Westphal Christoph H2016-03-18: 2 purchases — SCULLEY JOHN, Westphal Christoph H2016-03-21: 3 purchases — SCULLEY JOHN, Westphal Christoph H2016-03-22: 1 purchase — Westphal Christoph H2016-03-23: 1 purchase — Westphal Christoph H2016-03-24: 1 purchase — Westphal Christoph H2016-05-09: 1 purchase — Westphal Christoph H2016-05-10: 1 purchase — Westphal Christoph H2016-05-11: 1 purchase — Westphal Christoph H2016-05-12: 1 purchase — Westphal Christoph H2016-05-13: 1 purchase — Westphal Christoph H2016-05-16: 1 purchase — Westphal Christoph H2016-05-17: 1 purchase — Westphal Christoph H2016-05-18: 1 purchase — Westphal Christoph H2016-05-19: 1 purchase — Westphal Christoph H2016-05-20: 1 purchase — Westphal Christoph H2016-05-23: 1 purchase — Westphal Christoph H2016-05-24: 1 purchase — Westphal Christoph H2016-05-25: 1 purchase — Westphal Christoph H2016-05-26: 1 purchase — Westphal Christoph H2016-05-27: 1 purchase — Westphal Christoph H2016-05-31: 1 purchase — Westphal Christoph H2016-06-01: 1 purchase — Westphal Christoph H2016-06-02: 1 purchase — Westphal Christoph H2016-06-03: 1 purchase — Westphal Christoph H2016-06-06: 1 purchase — Westphal Christoph H2016-06-07: 1 purchase — Westphal Christoph H2016-06-08: 1 purchase — Westphal Christoph H2016-06-09: 1 purchase — Westphal Christoph H2016-06-10: 1 purchase — Westphal Christoph H2016-06-13: 1 purchase — Westphal Christoph H2016-06-14: 1 purchase — Westphal Christoph H2016-06-15: 1 purchase — Westphal Christoph H2016-06-16: 1 purchase — Westphal Christoph H2016-06-17: 1 purchase — Westphal Christoph H2016-06-20: 1 purchase — Westphal Christoph H2016-06-21: 1 purchase — Westphal Christoph H2016-06-22: 1 purchase — Westphal Christoph H2016-06-23: 1 purchase — Westphal Christoph H2016-11-07: 2 purchases — Westphal Christoph H, McCabe John P.2016-11-08: 1 purchase — Westphal Christoph H2018-10-16: 2 sales — Longwood Fund II, L.P., Westphal Christoph H2019-01-08: 1 sale — Boston Foundation, Inc.2019-01-09: 1 sale — Boston Foundation, Inc.2019-01-30: 1 sale — Boston Foundation, Inc.2019-11-25: 3 purchases — HANISH ARNOLD C2020-02-11: 7 purchases — HANISH ARNOLD C, McVicar William K., Northrup Jonathan P and 3 more2020-02-13: 1 purchase — Rosenblum Mark J2020-02-18: 1 purchase — Jordan Scott2020-02-19: 1 purchase — Rosenblum Mark J2020-08-17: 1 purchase — Rosenblum Mark J2020-08-19: 2 purchases — Arthur David J.2020-08-21: 2 purchases — HANISH ARNOLD C2021-08-10: 1 purchase — HANISH ARNOLD C2021-08-17: 2 purchases — Arthur David J.2022-03-03: 2 purchases — Rosenblum Mark J, Arthur David J.2022-05-26: 5 purchases — Arthur David J.2022-05-31: 1 purchase — Rosenblum Mark J2022-06-03: 1 purchase — HANISH ARNOLD C2022-06-06: 1 purchase — McVicar William K.2022-06-07: 2 purchases — Burleson Tess, Lieber Jonathan I2025-11-20: 2 purchases — HANISH ARNOLD C, Rosenblum Mark J2025-12-30: 2 sales — HANISH ARNOLD C2015-02-032025-12-30
Insider profileRoleDateTransactionSharesPrice
HANISH ARNOLD CDirector2025-12-30Sale12.0$0.64
HANISH ARNOLD CDirector2025-12-30Sale15.0$0.64
HANISH ARNOLD CDirector2025-11-20Purchase5,000.0$0.75
Rosenblum Mark JExec VP Finance, CFO2025-11-20Purchase20,000.0$0.8
Burleson TessDirector2022-06-07Purchase27,700.0$0.18
Lieber Jonathan IDirector2022-06-07Purchase37,500.0$0.19
McVicar William K.Director2022-06-06Purchase26,553.0$0.19
HANISH ARNOLD CDirector2022-06-03Purchase28,000.0$0.18
Rosenblum Mark JExec VP Finance, CFO2022-05-31Purchase28,000.0$0.18
Arthur David J.Chief Executive Officer2022-05-26Purchase10,800.0$0.18
Arthur David J.Chief Executive Officer2022-05-26Purchase10,392.0$0.18
Arthur David J.Chief Executive Officer2022-05-26Purchase708.0$0.18
Arthur David J.Chief Executive Officer2022-05-26Purchase18,600.0$0.18
Arthur David J.Chief Executive Officer2022-05-26Purchase3,400.0$0.18
Rosenblum Mark JExec VP Finance, CFO2022-03-03Purchase76,246.0$0.39
Arthur David J.Chief Executive Officer2022-03-03Purchase139,488.0$0.39
Arthur David J.Chief Executive Officer2021-08-17Purchase2,000.0$0.89
Arthur David J.Chief Executive Officer2021-08-17Purchase2,000.0$0.9
HANISH ARNOLD CDirector2021-08-10Purchase7,000.0$0.88
HANISH ARNOLD CDirector2020-08-21Purchase4,000.0$0.98
HANISH ARNOLD CDirector2020-08-21Purchase4,000.0$0.98
Arthur David J.Chief Executive Officer2020-08-19Purchase1,000.0$1.01
Arthur David J.Chief Executive Officer2020-08-19Purchase1,000.0$1.01
Rosenblum Mark JExec VP Finance, CFO2020-08-17Purchase5,000.0$1.0
Rosenblum Mark JExec VP Finance, CFO2020-02-19Purchase2,000.0$0.95
Jordan ScottChief Business Officer2020-02-18Purchase11,300.0$0.9
Rosenblum Mark JExec VP Finance, CFO2020-02-13Purchase5,000.0$0.86
HANISH ARNOLD CDirector2020-02-11Purchase4,350.0$1.15
McVicar William K.Director2020-02-11Purchase8,700.0$1.15
Northrup Jonathan PDirector2020-02-11Purchase8,700.0$1.15
Burleson TessDirector2020-02-11Purchase4,350.0$1.15
HANISH ARNOLD CDirector2020-02-11Purchase4,350.0$1.15
McCreedy Bruce J Jr.Director2020-02-11Purchase8,700.0$1.15
Arthur David J.Chief Executive Officer2020-02-11Purchase2,175.0$1.15
HANISH ARNOLD CDirector2019-11-25Purchase3,000.0$3.59
HANISH ARNOLD CDirector2019-11-25Purchase3,000.0$3.59
HANISH ARNOLD CDirector2019-11-25Purchase3,000.0$3.59
Boston Foundation, Inc.TenPercentOwner2019-01-30Sale1,600,000.0$0.33
Boston Foundation, Inc.TenPercentOwner2019-01-09Sale337,000.0$0.37
Boston Foundation, Inc.TenPercentOwner2019-01-08Sale263,000.0$0.4
Longwood Fund II, L.P.TenPercentOwner2018-10-16Sale3,212,861.0$0.92
Westphal Christoph HTenPercentOwner2018-10-16Sale3,212,861.0$0.92
Westphal Christoph HPresident and CEO2016-11-08Purchase7,000.0$7.31
Westphal Christoph HPresident and CEO2016-11-07Purchase8,870.0$5.7
McCabe John P.VP of Finance & Treasurer2016-11-07Purchase1,650.0$6.01
Westphal Christoph HPresident and CEO2016-06-23Purchase2,700.0$11.28
Westphal Christoph HPresident and CEO2016-06-22Purchase2,900.0$11.03
Westphal Christoph HPresident and CEO2016-06-21Purchase2,800.0$11.07
Westphal Christoph HPresident and CEO2016-06-20Purchase3,000.0$11.37
Westphal Christoph HPresident and CEO2016-06-17Purchase3,000.0$10.98
Westphal Christoph HPresident and CEO2016-06-16Purchase2,900.0$11.1
Westphal Christoph HPresident and CEO2016-06-15Purchase2,900.0$11.24
Westphal Christoph HPresident and CEO2016-06-14Purchase3,000.0$11.19
Westphal Christoph HPresident and CEO2016-06-13Purchase2,900.0$11.9
Westphal Christoph HPresident and CEO2016-06-10Purchase3,000.0$11.83
Westphal Christoph HPresident and CEO2016-06-09Purchase3,000.0$12.04
Westphal Christoph HPresident and CEO2016-06-08Purchase2,900.0$12.24
Westphal Christoph HPresident and CEO2016-06-07Purchase3,000.0$12.26
Westphal Christoph HPresident and CEO2016-06-06Purchase3,000.0$12.33
Westphal Christoph HPresident and CEO2016-06-03Purchase3,000.0$12.79
Westphal Christoph HPresident and CEO2016-06-02Purchase5,000.0$13.22
Westphal Christoph HPresident and CEO2016-06-01Purchase5,000.0$12.76
Westphal Christoph HPresident and CEO2016-05-31Purchase5,000.0$12.66
Westphal Christoph HPresident and CEO2016-05-27Purchase17,300.0$12.68
Westphal Christoph HPresident and CEO2016-05-26Purchase16,300.0$12.53
Westphal Christoph HPresident and CEO2016-05-25Purchase12,300.0$13.25
Westphal Christoph HPresident and CEO2016-05-24Purchase16,967.0$12.5
Westphal Christoph HPresident and CEO2016-05-23Purchase13,367.0$12.31
Westphal Christoph HPresident and CEO2016-05-20Purchase1,000.0$11.44
Westphal Christoph HPresident and CEO2016-05-19Purchase6,914.0$11.0
Westphal Christoph HPresident and CEO2016-05-18Purchase15,200.0$11.05
Westphal Christoph HPresident and CEO2016-05-17Purchase18,200.0$11.14
Westphal Christoph HPresident and CEO2016-05-16Purchase8,200.0$10.4
Westphal Christoph HPresident and CEO2016-05-13Purchase7,269.0$10.09
Westphal Christoph HPresident and CEO2016-05-12Purchase16,097.0$9.94
Westphal Christoph HPresident and CEO2016-05-11Purchase14,120.0$10.33
Westphal Christoph HPresident and CEO2016-05-10Purchase12,577.0$10.14
Westphal Christoph HPresident and CEO2016-05-09Purchase17,532.0$9.8
Westphal Christoph HPresident and CEO2016-03-24Purchase24,207.0$10.55
Westphal Christoph HPresident and CEO2016-03-23Purchase25,356.0$11.55
Westphal Christoph HPresident and CEO2016-03-22Purchase23,951.0$11.78
SCULLEY JOHNDirector2016-03-21Purchase4,000.0$12.06
Westphal Christoph HPresident and CEO2016-03-21Purchase23,951.0$11.78
Westphal Christoph HPresident and CEO2016-03-21Purchase24,107.0$11.7
SCULLEY JOHNDirector2016-03-18Purchase709.0$11.13
Westphal Christoph HPresident and CEO2016-03-18Purchase18,437.0$11.06
Westphal Christoph HPresident and CEO2016-03-17Purchase19,137.0$10.94
Westphal Christoph HPresident and CEO2016-03-16Purchase19,142.0$10.85
Westphal Christoph HPresident and CEO2016-03-15Purchase19,237.0$9.62
Stacy MichelleDirector2016-03-15Purchase2,585.0$9.63
Wessel ThomasChief Medical Officer2016-03-14Purchase8,000.0$9.13
Longwood Fund II, L.P.TenPercentOwner2016-03-11Purchase89,680.0$7.0
Westphal Christoph HPresident and CEO2016-03-11Purchase89,680.0$7.0
Wessel ThomasChief Medical Officer2016-03-11Purchase12,000.0$7.15
MacKinnon RoderickDirector2016-03-11Purchase10,000.0$7.03
Westphal Christoph HPresident and CEO2015-12-14Purchase927.0$12.01
Westphal Christoph HPresident and CEO2015-12-07Purchase907.0$12.02
Westphal Christoph HPresident and CEO2015-11-30Purchase887.0$12.32
Westphal Christoph HPresident and CEO2015-11-23Purchase971.0$11.39
KOZIN MARC DDirector2015-11-19Purchase4,500.0$11.38