Who owns MAXCYTE, INC.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from SEC filings.
Institutional ownership of MXCT from SEC Form 13F filings across 85 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 85 institutions disclosed 32.2M shares of MAXCYTE, INC. worth $39.4M — about 30.1% of shares outstanding; the largest disclosed holder is VANGUARD CAPITAL MANAGEMENT LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
85
13F holders
$39.4M
value, 2026 filers
30.1%
of shares outstanding (32.2M sh)
21
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30· % of fund = share of the manager's own book · % of co. = share of MXCT's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC | 4.0M | $5.0M | 0.0% | 3.8% | -49.4% |
| 2 | MORGAN STANLEY | 3.7M | $4.5M | 0.0% | 3.5% | +0.2% |
| 3 | BlackRock, Inc. | 3.1M | $3.8M | 0.0% | 2.9% | -65.2% |
| 4 | BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 2.8M | $3.4M | 0.0% | 2.6% | 0.0% |
| 5 | CADIAN CAPITAL MANAGEMENT, LP | 2.2M | $2.7M | 0.2% | 2.1% | +27.8% |
| 6 | JANE STREET GROUP, LLC | 1.6M | $1.9M | 0.0% | 1.5% | +7498.8% |
| 7 | TWO SIGMA INVESTMENTS, LP | 1.5M | $1.8M | 0.0% | 1.4% | +140.6% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 1.3M | $1.6M | 0.0% | 1.2% | -43.8% |
| 9 | RBF Capital, LLCNEW | 1.3M | $1.6M | 0.1% | 1.2% | new |
| 10 | GOLDMAN SACHS GROUP INC | 1.2M | $1.5M | 0.0% | 1.2% | +7.2% |
| 11 | MILLENNIUM MANAGEMENT LLC | 1.2M | $1.5M | 0.0% | 1.1% | +2698.3% |
| 12 | MARSHALL WACE, LLP | 1.0M | $1.2M | 0.0% | 0.9% | +925.9% |
| 13 | CITADEL ADVISORS LLC | 856,318 | $1.1M | 0.0% | 0.8% | +157.1% |
| 14 | VANGUARD FIDUCIARY TRUST CO | 653,203 | $803,440 | 0.0% | 0.6% | +1.6% |
| 15 | Man Group plcNEW | 448,958 | $552,218 | 0.0% | 0.4% | new |
| 16 | Qube Research & Technologies LtdNEW | 389,102 | $478,595 | 0.0% | 0.4% | new |
| 17 | Apollo Management Holdings, L.P. | 307,987 | $378,824 | 0.0% | 0.3% | 0.0% |
| 18 | Point72 Asset Management, L.P.NEW | 299,853 | $368,819 | 0.0% | 0.3% | new |
| 19 | Marquette Asset Management, LLCNEW | 285,507 | $351,174 | 0.0% | 0.3% | new |
| 20 | UBS Group AG | 284,273 | $349,655 | 0.0% | 0.3% | +4.9% |
| 21 | NORTHERN TRUST CORP | 264,914 | $325,844 | 0.0% | 0.2% | -66.9% |
| 22 | VANGUARD PORTFOLIO MANAGEMENT LLC | 260,443 | $320,345 | 0.0% | 0.2% | -70.7% |
| 23 | IEQ CAPITAL, LLC | 237,962 | $292,694 | 0.0% | 0.2% | +106.6% |
| 24 | Rathbones Group PLC | 200,841 | $247,034 | 0.0% | 0.2% | -10.1% |
| 25 | FMR LLC | 180,338 | $221,815 | 0.0% | 0.2% | -5.1% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.