Douglas Munro

CIK: 0002011703

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)13 (81.3%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)3 (18.8%)

Compensation grants

Other (G, F, J, C, D, …)0 (0.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

MRCY

MERCURY SYSTEMS INC

Officer

Discretionary Trading P&L

Holdings

Transaction History (16 total)

MRCY
MERCURY SYSTEMS INC
Aug 20, 2026
Sale(S)
Direct
109 shares at avg. $97.67$11K
MRCY
MERCURY SYSTEMS INC
Aug 19, 2026
Sale(S)
Direct
548 shares at avg. $100.31$55K
MRCY
MERCURY SYSTEMS INC
Aug 18, 2026
Sale(S)
Direct
494 shares at avg. $111.36$55K
MRCY
MERCURY SYSTEMS INC
Aug 17, 2026
Award(A)
Direct
2.9K shares-
MRCY
MERCURY SYSTEMS INC
Aug 17, 2026
Sale(S)
Direct
404 shares at avg. $109.95$44K
MRCY
MERCURY SYSTEMS INC
Feb 17, 2026
Sale(S)
Direct
582 shares at avg. $83.56$49K
MRCY
MERCURY SYSTEMS INC
Nov 12, 2025
Sale(S)
Direct
1.3K shares at avg. $73.42$98K
MRCY
MERCURY SYSTEMS INC
Sep 16, 2025
Sale(S)
Direct
67 shares at avg. $73.40$5K
MRCY
MERCURY SYSTEMS INC
Aug 19, 2025
Sale(S)
Direct
376 shares at avg. $64.46$24K
MRCY
MERCURY SYSTEMS INC
Aug 18, 2025
Sale(S)
Direct
363 shares at avg. $66.52$24K
MRCY
MERCURY SYSTEMS INC
Aug 15, 2025
Award(A)
Direct
3.4K shares-
MRCY
MERCURY SYSTEMS INC
May 14, 2025
Sale(S)
Direct
1.6K shares at avg. $45.64$73K
MRCY
MERCURY SYSTEMS INC
May 14, 2025
Sale(S)
Indirect
809 shares at avg. $44.88$36K
MRCY
MERCURY SYSTEMS INC
Feb 18, 2025
Sale(S)
Direct
595 shares at avg. $44.12$26K
MRCY
MERCURY SYSTEMS INC
Sep 16, 2024
Sale(S)
Direct
69 shares at avg. $37.60$3K
MRCY
MERCURY SYSTEMS INC
Aug 15, 2024
Award(A)
Direct
5.4K shares-

		Type	Shares	Price		Ownership
Aug 20, 2026	MRCY MERCURY SYSTEMS INC	Sale(S)	109	$97.67	$10,646	Direct
Aug 19, 2026	MRCY MERCURY SYSTEMS INC	Sale(S)	548	$100.31	$54,968	Direct
Aug 18, 2026	MRCY MERCURY SYSTEMS INC	Sale(S)	494	$111.36	$55,011	Direct
Aug 17, 2026	MRCY MERCURY SYSTEMS INC	Award(A)	2,882	-	$0	Direct
Aug 17, 2026	MRCY MERCURY SYSTEMS INC	Sale(S)	404	$109.95	$44,420	Direct
Feb 17, 2026	MRCY MERCURY SYSTEMS INC	Sale(S)	582	$83.56	$48,629	Direct
Nov 12, 2025	MRCY MERCURY SYSTEMS INC	Sale(S)	1,329	$73.42	$97,570	Direct
Sep 16, 2025	MRCY MERCURY SYSTEMS INC	Sale(S)	67	$73.40	$4,918	Direct
Aug 19, 2025	MRCY MERCURY SYSTEMS INC	Sale(S)	376	$64.46	$24,238	Direct
Aug 18, 2025	MRCY MERCURY SYSTEMS INC	Sale(S)	363	$66.52	$24,145	Direct
Aug 15, 2025	MRCY MERCURY SYSTEMS INC	Award(A)	3,380	-	-	Direct
May 14, 2025	MRCY MERCURY SYSTEMS INC	Sale(S)	1,610	$45.64	$73,480	Direct
May 14, 2025	MRCY MERCURY SYSTEMS INC	Sale(S)	809	$44.88	$36,308	Indirect
Feb 18, 2025	MRCY MERCURY SYSTEMS INC	Sale(S)	595	$44.12	$26,254	Direct
Sep 16, 2024	MRCY MERCURY SYSTEMS INC	Sale(S)	69	$37.60	$2,594	Direct
Aug 15, 2024	MRCY MERCURY SYSTEMS INC	Award(A)	5,364	-	$0	Direct

1-16 of 16 transactions

About Munro Douglas

Munro Douglas (SEC CIK 0002011703) files insider reports with the SEC as SVP, CAO of MERCURY SYSTEMS INC (MRCY).

Signal8 holds 12 ownership filings by Munro Douglas, all Form 4s, filed between Sep 18, 2024 and Sep 15, 2026. Those filings report 16 transactions, from Aug 15, 2024 to Aug 20, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Munro Douglas's filings is in ANDOVER, MA.

Recent filings by Munro Douglas

Aug 20, 2026: Open-market sale of MRCY shares (Form 4, code S).
Aug 19, 2026: Open-market sale of MRCY shares (Form 4, code S).
Aug 18, 2026: Open-market sale of MRCY shares (Form 4, code S).
Aug 17, 2026: Grant or award of MRCY shares (Form 4, code A).
Aug 17, 2026: Open-market sale of MRCY shares (Form 4, code S).

Other insiders filing for MERCURY SYSTEMS INC (MRCY)

Ostfeld Scott, Director
DEMURO GERARD J, Director
Plunkett Debora A, Director
Nearhos Barry R, Director
BUA JEAN A, Director
LANCE HOWARD L, Director

How to read Form 4 transaction codes