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Decoy Therapeutics Inc.

DCOY Net selling
CIK 0001615219 #5572 in the set updated 22 Sep 2026
Bought (120 mo)
$341.26K
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$6.11M
$0.00 on a plan · $0.00 straight out of an exercise
Sold at will
$6.11M
6 of 6 sales
Net
−$5.77M
−$5.77M against sales at will

By person

18 insiders · 40 transactions
Insider
Role
Bought
Sold
Net
Holding
Worth
Change
Longwood Fund II, L.P. entity
10% owner
$2.94M (1)
−$2.94M
0
$0.00
−100.0%
Westphal Christoph H
10% owner
$101.73K (2)
$2.94M (1)
−$2.84M
7,153,979
$4.58M
−30.9%
Boston Foundation, Inc. entity
10% owner
$228.15K (2)
−$228.15K
1,600,000
$1.02M
−27.3%
Arthur David J.
Chief Executive Officer
$70.63K (11)
+$70.63K
554,087
$354.45K
+94.0%
Rosenblum Mark J
Chief Financial Officer
$62.05K (6)
+$62.05K
11,363
$7.27K
HANISH ARNOLD C
Director
$34.75K (6)
$17.27 (2)
+$34.73K
26,768
$17.12K
McVicar William K.
Director
$15.00K (2)
+$15.00K
29,555
$18.91K
Jordan Scott
Chief Business Officer
$10.17K (1)
+$10.17K
31,609
$20.22K
+55.6%
McCreedy Bruce J Jr.
Director
$10.01K (1)
+$10.01K
1,788
$1.14K
Northrup Jonathan P
Director
$10.01K (1)
+$10.01K
352,713
$225.63K
+2.5%
Burleson Tess
Director
$9.99K (2)
+$9.99K
2,002
$1.28K
McCabe John P.
Chief Financial Officer
$9.92K (1)
+$9.92K
1,650
$1.06K
Lieber Jonathan I
Director
$7.02K (1)
+$7.02K
2,002
$1.28K
PIERCE FREDERICK II
Chief Executive Officer
34,844
$22.29K
+2,409%
Hibner Barbara Louise
Chief Scientific Officer
4,216
$2.70K
Marschel Peter Klaus
Chief Business Officer
3,900
$2.49K
Lammers Paul
Director
2,001
$1.28K
Gauthier Patricia G.
Director
2,000
$1.28K

No percentages here. This company's share count has moved by a factor of 14.4 over the window, from 531,968 to 7,645,594 shares. A split, a merger or a large issue changes what the company is, and a holding measured at one point in that run is not a fraction of it at another.

Nothing of that kind in this period.

What was left out

Form 4 filings counted 140
Amendments (4/A) skipped 9
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 0
Sales at will 6
Transactions with no price 0
Shares from compensation/vesting 204,652
Sales filed before the plan box existed 4
History held since 7 Nov 2016