Mercury Systems (MRCY) Stock: Why It's Up Today
Updated Oct 19, 2026, 4:00 PM ET · closing price
- Closed at $75.99, +2.32% vs the prior close of $74.27.
- Volume 575.89K shares, 0.8x its 50-day average.
- New SEC filings: 4 (Oct 16, 2026).
- No new insider buys or sales reported since the prior session.
MRCY rises 2.3% to $75.99. Closed at $75.99, +2.32% vs the prior close of $74.27. Day range $74.36–$76.83, opened at $74.92.
MRCY daily analysis — what happened
A plain-English, data-only note for every US trading day (today's note updates every 2 hours while the market is open). Newest first; older days stay archived below.
Oct 19, 2026 — MRCY rises 2.3% to $75.99
- Closed at $75.99, +2.32% vs the prior close of $74.27. Day range $74.36–$76.83, opened at $74.92.
- Volume was 575.89K shares, 0.8x its 50-day average of 698.78K.
- Price is -13.0% vs its 50-day average ($87.32) and -17.5% vs its 200-day average ($92.16).
- 52-week range $65.04–$128.45; today's close sits at 17% of that range, 40.8% below the 52-week high.
Oct 16, 2026 — MRCY dips 2.8% to $74.27, a 6-month low
- Closed at $74.27, -2.80% vs the prior close of $76.41. Day range $72.01–$76.65, opened at $76.65.
- Volume was 1.12M shares, 1.6x its 50-day average of 685.52K.
- Price is -15.6% vs its 50-day average ($87.97) and -19.4% vs its 200-day average ($92.15).
- 52-week range $65.04–$128.45; today's close sits at 15% of that range, 42.2% below the 52-week high.
Oct 15, 2026 — MRCY rises 1.0% to $76.41
- Closed at $76.41, +0.95% vs the prior close of $75.69. Day range $73.25–$76.66, opened at $74.86.
- Volume was 471.30K shares, 0.7x its 50-day average of 688.28K.
- Price is -13.8% vs its 50-day average ($88.66) and -17.1% vs its 200-day average ($92.15).
- 52-week range $65.04–$128.45; today's close sits at 18% of that range, 40.5% below the 52-week high.
Oct 14, 2026 — MRCY dips 1.3% to $75.69, a 3-month low, 3 down days in a row
- Closed at $75.69, -1.33% vs the prior close of $76.71. Day range $74.95–$77.22, opened at $75.78.
- Volume was 524.10K shares, 0.8x its 50-day average of 693.43K.
- Price is -15.2% vs its 50-day average ($89.29) and -17.9% vs its 200-day average ($92.14).
- 52-week range $65.04–$128.45; today's close sits at 17% of that range, 41.1% below the 52-week high.
- That makes 3 straight losses.
Oct 13, 2026 — MRCY dips 1.2% to $76.71, a 3-month low
- Closed at $76.71, -1.24% vs the prior close of $77.67. Day range $75.10–$77.67, opened at $77.67.
- Volume was 409.20K shares, 0.6x its 50-day average of 698.81K — lighter than usual.
- Price is -14.8% vs its 50-day average ($90.03) and -16.7% vs its 200-day average ($92.13).
- 52-week range $65.04–$128.45; today's close sits at 18% of that range, 40.3% below the 52-week high.
Oct 12, 2026 — MRCY dips 2.3% to $77.67, a 3-month low
- Closed at $77.67, -2.29% vs the prior close of $79.49. Day range $77.67–$79.41, opened at $79.13.
- Volume was 308.00K shares, 0.4x its 50-day average of 699.91K — lighter than usual.
- Price is -14.3% vs its 50-day average ($90.61) and -15.7% vs its 200-day average ($92.12).
- 52-week range $65.04–$128.45; today's close sits at 20% of that range, 39.5% below the 52-week high.
Oct 9, 2026 — MRCY rises 1.2% to $79.49
- Closed at $79.49, +1.24% vs the prior close of $78.52. Day range $78.14–$79.64, opened at $79.01.
- Volume was 294.40K shares, 0.4x its 50-day average of 702.67K — lighter than usual.
- Price is -12.6% vs its 50-day average ($91.00) and -13.7% vs its 200-day average ($92.11).
- 52-week range $65.04–$128.45; today's close sits at 23% of that range, 38.1% below the 52-week high.
Oct 8, 2026 — MRCY dips 1.5% to $78.52, a 3-month low, 4 down days in a row
- Closed at $78.52, -1.54% vs the prior close of $79.75. Day range $77.44–$79.93, opened at $78.75.
- Volume was 395.30K shares, 0.6x its 50-day average of 708.41K — lighter than usual.
- Price is -14.0% vs its 50-day average ($91.33) and -14.7% vs its 200-day average ($92.08).
- 52-week range $65.04–$128.45; today's close sits at 21% of that range, 38.9% below the 52-week high.
- That makes 4 straight losses.
Oct 7, 2026 — MRCY slides 3.7% to $79.75, a 3-month low, 3 down days in a row
- Closed at $79.75, -3.68% vs the prior close of $82.80. Day range $78.87–$81.52, opened at $80.89.
- Volume was 432.90K shares, 0.6x its 50-day average of 710.03K.
- Price is -12.9% vs its 50-day average ($91.56) and -13.3% vs its 200-day average ($92.03).
- 52-week range $65.04–$128.45; today's close sits at 23% of that range, 37.9% below the 52-week high.
- That makes 3 straight losses.
Oct 6, 2026 — MRCY ends flat (-0.2%) to $82.80
- Closed at $82.80, -0.17% vs the prior close of $82.94. Day range $81.25–$84.14, opened at $83.80.
- Volume was 547.60K shares, 0.8x its 50-day average of 707.89K.
- Price is -10.0% vs its 50-day average ($91.95) and -10.0% vs its 200-day average ($91.98).
- 52-week range $65.04–$128.45; today's close sits at 28% of that range, 35.5% below the 52-week high.
Oct 5, 2026 — MRCY dips 2.3% to $82.94
- Closed at $82.94, -2.27% vs the prior close of $84.87. Day range $82.64–$85.00, opened at $84.66.
- Volume was 538.40K shares, 0.8x its 50-day average of 705.71K.
- Price is -10.2% vs its 50-day average ($92.37) and -9.8% vs its 200-day average ($91.91).
- 52-week range $65.04–$128.45; today's close sits at 28% of that range, 35.4% below the 52-week high.
Oct 2, 2026 — MRCY rises 1.0% to $84.87, 4 up days in a row
- Closed at $84.87, +0.95% vs the prior close of $84.07. Day range $84.06–$86.73, opened at $86.52.
- Volume was 549.40K shares, 0.8x its 50-day average of 710.67K.
- Price is -8.5% vs its 50-day average ($92.78) and -7.6% vs its 200-day average ($91.86).
- 52-week range $65.04–$128.45; today's close sits at 31% of that range, 33.9% below the 52-week high.
- That makes 4 straight gains.
MRCY bull case vs bear case (from the data)
- Annual revenue grew 7.9% in the latest fiscal year (SEC XBRL).
- Price is -13.0% vs its 50-day average — short-term trend is down.
- Price is -17.5% vs its 200-day average — below the long-term trend line.
- Latest fiscal-year net income: loss of $29.67M.
- Insider selling outweighs buying: 25 sales vs 0 open-market buys among the 25 most recent reported insider trades (Form 4, last 12 months).
MRCY latest news & SEC filings
Every SEC filing by or about MRCY in the last 120 days, explained in plain English. Updated daily, with a same-day refresh for new filings.
Oct 16, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Nearhos Barry R received an award of 235 shares on Oct 15, 2026; now holds 31,729
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Sep 23, 2026 · Form 4 — Insider trade
Insider trade report (Form 4) — a director, officer or 10%+ owner changed their holdings
- Kupinsky Stuart sold 1,000 shares at $86.52 (≈$86.52K) on Sep 21, 2026; now holds 60,971
Open-market purchases (P) and sales (S) are shown in colour; awards, exercises and tax withholding are routine pay-related moves. Many sales are pre-planned under 10b5-1 plans.
Sep 21, 2026 · Form 144 — Planned insider sale
Notice of proposed sale (Form 144) — an insider or affiliate plans to sell restricted or control shares
A notice of intent, not a completed sale. Any actual sale by a director or officer shows up later on Form 4.
Sep 18, 2026 · Form 8-K — Major event / current report
Current report — a filing companies must make within 4 business days of a major event
- Item 8.01 — Reported other events the company considers important.
Sep 17, 2026 · Form ARS — Annual report to shareholders
Annual report to shareholders
Sep 17, 2026 · Form DEF 14A — Proxy statement
Proxy statement — agenda for the shareholder meeting (board elections, executive pay, votes)
Sep 16, 2026 · Form 8-K — Major event / current report
Current report — a filing companies must make within 4 business days of a major event
- Item 1.01 — Signed a material agreement.
- Item 7.01 — Released information under Regulation FD (e.g. a presentation or press release).
Sep 15, 2026 · Form 4/A — Insider trade (amended)
Amended insider trade report (Form 4/A)
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Sep 15, 2026 · Form 4/A — Insider trade (amended)
Amended insider trade report (Form 4/A)
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Sep 15, 2026 · Form 4/A — Insider trade (amended)
Amended insider trade report (Form 4/A)
Insider holdings update with no common-stock transactions in the table (often options or derivative awards only).
Aug 18, 2026 · Form 10-K — Annual report
Annual report (audited full-year financial statements and business review)
Fiscal year ended Jul 3, 2026:
- Revenue: $983.62M (prior year $912.02M) (+7.9% vs Jun 27, 2025)
- Net income: -$29.67M (prior year -$37.90M) (loss narrowed vs Jun 27, 2025)
- Diluted EPS: -$0.50 (prior year -$0.65) (loss narrowed vs Jun 27, 2025)
Aug 18, 2026 · Form 8-K — Major event / current report
Current report — a filing companies must make within 4 business days of a major event
- Item 2.02 — Reported results of operations (earnings release).
This is a results-day filing: the earnings press release is attached as an exhibit.
Jul 31, 2026 · Form SCHEDULE 13G — Passive stake (13G)
Passive stake (13G) — an investor reported owning more than 5%
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Jul 29, 2026 · Form SCHEDULE 13G/A — Update to a passive 5%+ stake (13G)
Update to a passive 5%+ stake (13G)
Filed by an outside investor (not the company). It reports a holding of more than 5% of a share class; percentage and holder name are in the filing.
Things to know before you trade MRCY
- Last results release: Aug 18, 2026 (8-K Item 2.02). Previous ones: May 5, 2026, Feb 3, 2026, Nov 4, 2025. Based on that rhythm, the next report is likely around Nov 17, 2026 — an estimate, not a confirmed date.
- How much it moves: over the last 20 sessions the average daily move was 1.67% (largest 3.7%).
- Liquidity: about 540.03K shares (≈$41.04M) trade per day on average.
- 52-week position: $75.99 vs a range of $65.04–$128.45 (17% of the range).
- Dividends: no cash dividends in the last 2 years.
- Splits: none in the last 2 years.
- Insider trades (Form 4, last 12 months, recent 25 shown): 0 open-market buys, 25 sales; latest: Stuart Kupinsky sold 1,000 shares on Sep 21, 2026.
- Latest filings: 8-K Sep 18, 2026; 8-K Sep 16, 2026; 10-K Aug 18, 2026.
- Share count: 60.14M shares outstanding (Jul 31, 2026), +0.4% vs a year earlier.
- Listing: Nasdaq · industry: Electronic Components & Accessories.
MRCY market data (last 20 sessions)
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Oct 19, 2026 | 74.92 | 76.83 | 74.36 | 75.99 | 575.89K |
| Oct 16, 2026 | 76.65 | 76.65 | 72.01 | 74.27 | 1.12M |
| Oct 15, 2026 | 74.86 | 76.66 | 73.25 | 76.41 | 471.30K |
| Oct 14, 2026 | 75.78 | 77.22 | 74.95 | 75.69 | 524.10K |
| Oct 13, 2026 | 77.67 | 77.67 | 75.10 | 76.71 | 409.20K |
| Oct 12, 2026 | 79.13 | 79.41 | 77.67 | 77.67 | 308.00K |
| Oct 9, 2026 | 79.01 | 79.64 | 78.14 | 79.49 | 294.40K |
| Oct 8, 2026 | 78.75 | 79.93 | 77.44 | 78.52 | 395.30K |
| Oct 7, 2026 | 80.89 | 81.52 | 78.87 | 79.75 | 432.90K |
| Oct 6, 2026 | 83.80 | 84.14 | 81.25 | 82.80 | 547.60K |
| Oct 5, 2026 | 84.66 | 85.00 | 82.64 | 82.94 | 538.40K |
| Oct 2, 2026 | 86.52 | 86.73 | 84.06 | 84.87 | 549.40K |
| Oct 1, 2026 | 83.40 | 84.39 | 81.05 | 84.07 | 480.40K |
| Sep 30, 2026 | 83.91 | 84.67 | 81.59 | 83.00 | 667.40K |
| Sep 29, 2026 | 80.54 | 82.90 | 78.61 | 82.64 | 844.40K |
| Sep 28, 2026 | 80.95 | 81.37 | 79.61 | 80.12 | 604.40K |
| Sep 25, 2026 | 83.79 | 84.34 | 81.78 | 82.18 | 440.80K |
| Sep 24, 2026 | 81.86 | 83.58 | 80.99 | 83.18 | 466.60K |
| Sep 23, 2026 | 83.03 | 83.94 | 81.91 | 82.72 | 444.70K |
| Sep 22, 2026 | 86.75 | 86.75 | 82.50 | 83.88 | 687.40K |
About Mercury Systems
Mercury Systems (MRCY) is listed on the Nasdaq and classified by the SEC under “Electronic Components & Accessories”. Its business address is in ANDOVER, MA. State of incorporation: MA. Fiscal year ends June 30. SEC CIK 1049521.
MRCY board of directors & executives
From SEC Form 3/4/5 insider filings made in the last 12 months (date = latest filing).
Directors
| Name | Role | Latest filing |
|---|---|---|
| Jean A Bua | Director | Oct 24, 2025 |
| William L Ballhaus | Chairman, President & CEO | Sep 15, 2026 |
| Orlando D Carvalho | Director | May 13, 2026 |
| Gerard J Demuro | Director | Oct 24, 2025 |
| Lisa S Disbrow | Director | Oct 24, 2025 |
| Partners Management, Lp Jana | See Remarks | Mar 4, 2026 |
| Howard L Lance | Director | May 27, 2026 |
| Barry R Nearhos | Director | Jul 20, 2026 |
| Debora A Plunkett | Director | Nov 10, 2025 |
Executive officers
| Name | Title | Latest filing |
|---|---|---|
| William L Ballhaus | Chairman, President & CEO | Sep 15, 2026 |
| David E. Farnsworth | EVP, CFO | Sep 15, 2026 |
| Stuart Kupinsky | EVP, CLO & Corp Sec | Sep 23, 2026 |
| Douglas Munro | SVP, CAO | Sep 15, 2026 |
| Steven Ratner | EVP, CHRO | Sep 15, 2026 |
Recent insider buys & sales
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Sep 21, 2026 | Stuart Kupinsky | Sale | 1,000 | $86.52 |
| Sep 21, 2026 | Stuart Kupinsky | Sale | 1,000 | $86.52 |
| Sep 21, 2026 | Stuart Kupinsky | Sale | 1,000 | $86.52 |
| Sep 21, 2026 | Stuart Kupinsky | Sale | 1,000 | $86.52 |
| Sep 3, 2026 | Steven Ratner | Sale | 4,000 | $84.51 |
| Sep 3, 2026 | Steven Ratner | Sale | 4,000 | $84.51 |
| Sep 3, 2026 | Steven Ratner | Sale | 4,000 | $84.51 |
| Sep 3, 2026 | Steven Ratner | Sale | 4,000 | $84.51 |
| Aug 26, 2026 | William L Ballhaus | Sale | 10,814 | $89.74 |
| Aug 26, 2026 | William L Ballhaus | Sale | 38,276 | $88.91 |
| Aug 26, 2026 | William L Ballhaus | Sale | 10,814 | $89.74 |
| Aug 26, 2026 | William L Ballhaus | Sale | 38,276 | $88.91 |
| Aug 26, 2026 | William L Ballhaus | Sale | 10,814 | $89.74 |
| Aug 26, 2026 | William L Ballhaus | Sale | 38,276 | $88.91 |
| Aug 26, 2026 | William L Ballhaus | Sale | 10,814 | $89.74 |
MRCY financials (annual, from XBRL filings)
| Fiscal year end | Revenue | Net income | Diluted EPS | Operating cash flow |
|---|---|---|---|---|
| Jul 3, 2026 | $983.62M | $-29.67M | -0.50 | $102.39M |
| Jun 27, 2025 | $912.02M | $-37.90M | -0.65 | $138.85M |
| Jun 28, 2024 | $835.27M | $-137.64M | -2.38 | $60.38M |
| Jun 30, 2023 | $973.88M | $-28.34M | -0.50 | $-21.25M |
| Jul 1, 2022 | $988.20M | $11.28M | 0.20 | $-18.87M |
Latest balance sheet: total assets $2.32B, total liabilities $825.32M, cash $214.31M (as of Jul 3, 2026).
MRCY earnings / results-day log
| Date | Filing | Close that day |
|---|---|---|
| Aug 18, 2026 | 8-K Item 2.02 (results) | $105.00 |
| May 5, 2026 | 8-K Item 2.02 (results) | $82.96 |
| Feb 3, 2026 | 8-K Item 2.02 (results) | $99.28 |
| Nov 4, 2025 | 8-K Item 2.02 (results) | $75.71 |
| Aug 11, 2025 | 8-K Item 2.02 (results) | $53.58 |
| May 6, 2025 | 8-K Item 2.02 (results) | $50.41 |
| Apr 1, 2025 | 8-K Item 2.02 (results) | $43.49 |
| Feb 4, 2025 | 8-K Item 2.02 (results) | $42.09 |
| Nov 5, 2024 | 8-K Item 2.02 (results) | $34.19 |
| Aug 13, 2024 | 8-K Item 2.02 (results) | — |
| May 7, 2024 | 8-K Item 2.02 (results) | — |
| Feb 6, 2024 | 8-K Item 2.02 (results) | — |
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Information only, not investment advice. BuyMeWhiskey is not a registered investment adviser or broker-dealer; nothing here is a recommendation to buy, sell or hold any security, and there are no price targets. Data comes from SEC EDGAR filings and public end-of-day market data and may be delayed or contain errors. Verify with the company's filings before making decisions. Prices: end-of-day data as of Oct 19, 2026, 4:00 PM ET. Filings: SEC EDGAR. Refreshed every 2 hours during US market hours.