341 tracked 13F filers disclose a position in MRCY as of the latest SEC 13F filings, a combined $4.6B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $650.4M | 8.9M | ▲+3.6% Added · +309K sh | Q1 2026 | |
| 2 | JANA Partners Management, LP | $299.5M | 4.1M | ▼−17% Reduced · −852K sh | Q1 2026 | |
| 3 | STATE STREET CORP | $418.0M | 3.4M | ▼−12% Reduced · −447K sh | Q2 2026 | |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | $212.2M | 2.9M | →First observed position No prior filed position | Q1 2026 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $175.3M | 2.4M | →First observed position No prior filed position | Q1 2026 | |
| 6 | T. Rowe Price Investment Management, Inc. | Withheld | 1.6M | ▲+2.4% Added · +37K sh | Q1 2026 | |
| 7 | Conestoga Capital Advisors, LLC | $181.9M | 1.5M | ▼−22% Reduced · −431K sh | Q2 2026 | |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | $178.6M | 1.5M | ▼−4.3% Reduced · −66K sh | Q2 2026 | |
| 9 | DIMENSIONAL FUND ADVISORS LP | $89.5M | 1.2M | ▼−17% Reduced · −248K sh | Q1 2026 | |
| 10 | GOLDMAN SACHS GROUP INC | $87.6M | 1.2M | ▲+3.9% Added · +45K sh | Q1 2026 | |
| 11 | FIRST TRUST ADVISORS LP | $84.6M | 1.2M | ▼−9.3% Reduced · −119K sh | Q1 2026 | |
| 12 | SEGALL BRYANT & HAMILL, LLC | $125.9M | 1.0M | ▲+10% Added · +95K sh | Q2 2026 | |
| 13 | PRICE T ROWE ASSOCIATES INC /MD/ | $75.0M | 1.0M | ▲+19% Added · +161K sh | Q1 2026 | |
| 14 | AMERIPRISE FINANCIAL INC | $72.3M | 992K | ▼−23% Reduced · −298K sh | Q1 2026 | |
| 15 | Fisher Asset Management, LLC | $71.5M | 980K | ▲+14% Added · +120K sh | Q1 2026 | |
| 16 | Neuberger Berman Group LLC | $66.3M | 910K | ▼−12% Reduced · −120K sh | Q1 2026 | |
| 17 | FMR LLC | $65.9M | 904K | ▼−22% Reduced · −249K sh | Q1 2026 | |
| 18 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $62.7M | 859K | ▲+44% Added · +261K sh | Q1 2026 | |
| 19 | VAN ECK ASSOCIATES CORP | Withheld | 851K | ▲+17% Added · +126K sh | Q1 2026 | |
| 20 | RAYMOND JAMES FINANCIAL INC | $56.3M | 794K | ▲+12% Added · +86K sh | Q1 2026 | |
| 21 | JENNISON ASSOCIATES LLC | $50.2M | 688K | ▲+53% Added · +238K sh | Q1 2026 | |
| 22 | MORGAN STANLEY | $48.9M | 671K | ▼−8.1% Reduced · −59K sh | Q1 2026 | |
| 23 | LOOMIS SAYLES & CO L P | $47.1M | 646K | ▼−24% Reduced · −206K sh | Q1 2026 | |
| 24 | EMERALD ADVISERS, LLC | $78.1M | 639K | ▲+7.3% Added · +43K sh | Q2 2026 | |
| 25 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $46.4M | 636K | ▼−0.1% Reduced · −654 sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
Last quarter, 3 funds opened a new position in MRCY and 25 added to an existing one, while 27 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| ALPHABET INC-CL AGOOGL | 183 funds | $164.8B |
| AMAZON.COM INCAMZN | 182 funds | $190.6B |
| MICROSOFT CORPMSFT | 181 funds | $251.1B |
| APPLE INCAAPL | 180 funds | $284.5B |
| NVIDIA CORPNVDA | 179 funds | $379.9B |
| JPMORGAN CHASE & COJPM | 177 funds | $60.8B |
| BROADCOM INCAVGO | 176 funds | $149.7B |
| META PLATFORMS INC-CLASS AMETA | 174 funds | $111.1B |
| ALPHABET INC-CL CGOOG | 173 funds | $117.5B |
| ELI LILLY & COLLY | 172 funds | $79.4B |
| MASTERCARD INC - AMA | 172 funds | $51.8B |
| GENERAL ELECTRICGE | 171 funds | $30.9B |
Ranked by how many of MRCY's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 26, 2026 | Ballhaus William L | Chairman, President & CEO, Director | Sell (S) | 11K | $970K |
| Aug 26, 2026 | Ballhaus William L | Chairman, President & CEO, Director | Sell (S) | 38K | $3.4M |
| Aug 25, 2026 | Ballhaus William L | Chairman, President & CEO, Director | Sell (S) | 3K | $303K |
| Aug 25, 2026 | Ballhaus William L | Chairman, President & CEO, Director | Sell (S) | 108K | $9.4M |
| Aug 24, 2026 | Ballhaus William L | Chairman, President & CEO, Director | Sell (S) | 3K | $248K |
| Aug 24, 2026 | Ballhaus William L | Chairman, President & CEO, Director | Sell (S) | 105K | $9.4M |
| Aug 21, 2026 | Ratner Steven | EVP, CHRO | Sell (S) | 356 | $33K |
| Aug 21, 2026 | Ballhaus William L | Chairman, President & CEO, Director | Sell (S) | 204 | $19K |
| Aug 21, 2026 | Ballhaus William L | Chairman, President & CEO, Director | Sell (S) | 65K | $6.0M |
| Aug 21, 2026 | KUPINSKY STUART | EVP, CLO & Corp Sec | Sell (S) | 1K | $95K |
| Aug 20, 2026 | Ballhaus William L | Chairman, President & CEO, Director | Sell (S) | 22K | $2.1M |
| Aug 20, 2026 | Farnsworth David E. | EVP, CFO | Sell (S) | 7K | $646K |
Connected entities for MRCY
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/MRCY/capital-change-brief"
Use Arkolith's capital_change_brief for MRCY. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for MRCY. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.