Who owns Mercury Systems Inc (MRCY)?
230 US mutual funds and ETFs from 125 fund families reported a position in MRCY for the quarter ending 2026-06-30. Against their own report a quarter earlier, 101 raised shares, 16 opened a new position, 85 cut and 12 sold out.
Largest fund families
| Fund family | Funds | Share of fund-held shares |
|---|---|---|
| Ishares Trust | 9 | 27.4% |
| Vanguard Index Funds | 4 | 18.7% |
| Spdr Series Trust | 8 | 8.9% |
| First Trust Exchange-Traded Fund Vi | 2 | 5.1% |
| Conestoga Funds | 2 | 3.7% |
| T. Rowe Price New Horizons Fund, Inc. | 1 | 3.4% |
Tracked managers holding MRCY
| Investor | Book weight |
|---|---|
| Jana | 11.4% |
Source: SEC Form N-PORT, which funds file about 60 days after quarter end, and the latest 13F filings. Share counts, not trades: a change can reflect fund inflows or outflows rather than a decision about MRCY. A record of holdings, not a forecast and not investment advice. See all owner pages or the forecast board for the names our model ranks.
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