Question 1

Who are the insiders buying MERCURY SYSTEMS INC stock?

Accepted Answer

InsiderAct tracks all open-market purchases of MERCURY SYSTEMS INC stock by corporate insiders — including officers, directors, and shareholders owning more than 10% — sourced from public SEC Form 4 filings.

Question 2

What does insider buying at a company mean?

Accepted Answer

When a corporate officer, director, or major shareholder purchases their own company's stock on the open market using personal funds, it signals confidence in the company's outlook. This is especially meaningful when multiple insiders buy within the same 7–14 day window (cluster buying) or when the purchase size exceeds $100,000.

Question 3

How do I find cluster buying signals for a company?

Accepted Answer

InsiderAct automatically detects cluster buying — two or more insiders independently purchasing shares within a 14-day window. When a cluster buy signal is active for a company, it appears prominently on the company's InsiderAct page and on the Signals tab.

Question 4

Has MERCURY SYSTEMS INC had any recent large insider purchases?

Accepted Answer

InsiderAct tracks all open-market purchases of $100,000 or more at MERCURY SYSTEMS INC. Large insider purchases are flagged as high-conviction signals because they represent meaningful personal capital commitments by executives or directors who have direct visibility into the company's operations and prospects.

Question 5

Where do the insider transactions on this page come from?

Accepted Answer

All transactions shown on InsiderAct company pages are sourced directly from SEC EDGAR Form 4 filings — the mandatory public disclosures that corporate insiders must submit within 2 business days of any stock transaction. InsiderAct ingests these filings in near real time and filters for open-market purchases and sales.

								1WStock price change 1 week after insider bought. Small number below shows return vs S&P 500.	1MStock price change 1 month after insider bought.
2026-04-17	2026-04-16	Nearhos Barry R	Director	Award	245	$0.00	$0	N/A	N/A
2026-04-17	2026-04-16	Farnsworth David E.	CFO	Sale	3,625	$84.87	$307,661	N/A	N/A
2026-03-05	2026-03-04	Jana Partners Management, Lp	Director	Sale	100,899	$89.68	$9,048,622	N/A	N/A
2026-03-05	2026-03-03	Jana Partners Management, Lp	Director	Sale	168,648	$90.12	$15,198,558	N/A	N/A
2026-03-05	2026-03-02	Jana Partners Management, Lp	Director	Sale	182,510	$94.05	$17,165,066	N/A	N/A
2026-02-27	2026-02-25	Lance Howard L	Director	Sale	4,832	$88.98	$429,961	N/A	N/A
2026-02-19	2026-02-17	Kupinsky Stuart	CLO	Sale	2,287	$83.56	$191,090	N/A	N/A
2026-02-19	2026-02-17	Munro Douglas	CAO	Sale	582	$83.56	$48,629	N/A	N/A
2026-02-12	2026-02-09	Jana Partners Management, Lp	Director	Sale	400,000	$81.00	$32,400,000	N/A	N/A
2026-01-20	2026-01-15	Nearhos Barry R	Director	Award	474	$0.00	$0	N/A	N/A

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