Latest filingAug 27, 2026Most recent Form 4
MRCY
MERCURY SYSTEMS INC
NasdaqTechnologyElectronic Components & Accessories
Insider activity for last month from 08/03 to 09/03. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$00 buys
Total selling$2.56B23 sells
Net open-market-$2.56B5 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period31transactions
- S · Open-market sells · dominant23 · 74%
- D · Issuer dispositions4 · 13%
- M · Option exercise4 · 13%
Activity by reported role
A joint filing can contribute to multiple roles79transactions
- EVP · dominant14 · 18%
- Chief executive officer13 · 16%
- CHAIR13 · 16%
- PRES13 · 16%
- Chief financial officer5 · 6%
- CHRO5 · 6%
- CAO4 · 5%
- CLO4 · 5%
- CS4 · 5%
- SVP4 · 5%
Distinct insiders active
Reporting-owner CIKs by month · peak Aug 2026 (5)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeBallhaus William LCommon Stock · Direct
410,912.325Aug 26, 2026
Farnsworth David E.Common Stock · Direct
117,967Aug 20, 2026
Ratner StevenCommon Stock · Direct
23,275Aug 20, 2026
Kupinsky StuartCommon Stock · Direct
57,352Aug 19, 2026
Munro DouglasCommon Stock · Direct
12,982Aug 20, 2026
Ballhaus William LEmployee Stock Option (Right to Buy) · Direct
0Aug 26, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 03 → Sep 03
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Top insiders
By absolute net value across the selected period- BL-$7.9M
- FE-$2.4M
- RS-$658.3k
- KS-$393.8k
- MD-$165.0k
Recent filing activity
Most recent 12 transactions · color = transaction codeFiling detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
MRCY transaction history
Filters apply within this company and selected period by default| Ticker | Insider | Role | Type | Shares | Value | Code | Signals | 90d return | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|---|
| MRCY | Munro Douglas | SVPCAO | sale | 109 | -$1.06M | S | −3.1% | 08/21 | 08/20 | |
| MRCY | Munro Douglas | SVPCAO | sale | 548 | -$5.49M | S | −3.1% | 08/21 | 08/19 | |
| MRCY | Ratner Steven | EVPCHRO | sale | 1.02k | -$10.0M | S | −3.1% | 08/21 | 08/20 | |
| MRCY | Ratner Steven | EVPCHRO | sale | 2.18k | -$21.9M | S | −3.1% | 08/21 | 08/19 | |
| MRCY | KUPINSKY STUART | EVPCLOCS | sale | 1.30k | -$13.1M | S | −3.1% | 08/21 | 08/19 | |
| MRCY | Farnsworth David E. | EVPCFO | sale | 6.61k | -$64.5M | S | −3.1% | 08/21 | 08/20 | |
| MRCY | Farnsworth David E. | EVPCFO | sale | 8.15k | -$81.7M | S | −3.1% | 08/21 | 08/19 | |
| MRCY | Ballhaus William L | CHAIRPRESCEO | sale | 22.0k | -$214M | S | −3.1% | 08/21 | 08/20 | |
| MRCY | Ballhaus William L | CHAIRPRESCEO | sale | 26.8k | -$268M | S | −3.1% | 08/21 | 08/19 | |
| MRCY | Munro Douglas | SVPCAO | sale | 494 | -$5.50M | S | −18.2% | 08/19 | 08/18 | |
| MRCY | Munro Douglas | SVPCAO | sale | 404 | -$4.44M | S | −18.2% | 08/19 | 08/17 | |
| MRCY | Ratner Steven | EVPCHRO | sale | 1.97k | -$21.9M | S | −18.2% | 08/19 | 08/18 | |
| MRCY | Ratner Steven | EVPCHRO | sale | 1.08k | -$11.9M | S | −18.2% | 08/19 | 08/17 | |
| MRCY | KUPINSKY STUART | EVPCLOCS | sale | 1.17k | -$13.1M | S | −18.2% | 08/19 | 08/18 | |
| MRCY | KUPINSKY STUART | EVPCLOCS | sale | 1.19k | -$13.1M | S | −18.2% | 08/19 | 08/17 | |
| MRCY | Farnsworth David E. | EVPCFO | sale | 7.34k | -$81.8M | S | −18.2% | 08/19 | 08/18 | |
| MRCY | Farnsworth David E. | EVPCFO | sale | 1.34k | -$14.7M | S | −18.2% | 08/19 | 08/17 | |
| MRCY | Ballhaus William L | CHAIRPRESCEO | sale | 24.1k | -$268M | S | −18.2% | 08/19 | 08/18 | |
| MRCY | Ballhaus William L | CHAIRPRESCEO | sale | 3.53k | -$38.8M | S | −18.2% | 08/19 | 08/17 | |
| MRCY | Ratner Steven | EVPCHRO | return | 2.69k | $0 | D | −21.1% | 08/18 | 08/14 | |
| MRCY | KUPINSKY STUART | EVPCLOCS | return | 6.97k | $0 | D | −21.1% | 08/18 | 08/14 | |
| MRCY | Farnsworth David E. | EVPCFO | return | 16.2k | $0 | D | −21.1% | 08/18 | 08/14 | |
| MRCY | Ballhaus William L | CHAIRPRESCEO | return | 70.2k | $0 | D | −21.1% | 08/18 | 08/14 |
MERCURY SYSTEMS INC Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at MERCURY SYSTEMS INC?
Ballhaus William L, Munro Douglas, Ratner Steven, KUPINSKY STUART, Farnsworth David E..
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
Ballhaus William L reported a sale on Aug 26, 2026 valued at $97.0M. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $25,612,851.76. Sales can occur for many non-investment reasons.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.