Maxcyte, Inc.
MXCT- Exchange
- Nasdaq
- Industry
- Services-Commercial Physical & Biological Research
- SEC CIK
- 0001287098
No open-market purchases or sales by Maxcyte, Inc. insiders were filed in the last 90 days; 122 institutions reported holding it in 13F filings for Q2 2026, worth $78.0M in total; no superinvestor holds it.
Holders of 5% or more of MXCT
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Maxcyte, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13G/A | 7.80%8.26M shares | – | Feb 5, 20251 filing | Feb 5, 2025 | SEC |
| Cadian Capital Management, LP | 13G/A | 7.70%8.23M shares | −1.20 ppfrom 8.90% | Feb 13, 20252 filings | Nov 14, 2025 | SEC |
| Mirabella Financial Services LLP | 13G/A | 7.69%8.20M shares | +1.49 ppfrom 6.20% | Nov 3, 20252 filings | Nov 4, 2025 | SEC |
| River & Mercantile Asset Management LLP | 13D | 5.20%5.50M shares | New | Oct 24, 20251 filing | Oct 24, 2025 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
6 Schedule 13D and 13G filings on Maxcyte, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Nov 14, 20251:40 PM ET | Cadian Capital Management, LPand 2 others | 13G/A | 7.70%8.23M shares | −1.20 ppfrom 8.90% | Sep 30, 2025 | SEC |
| Nov 4, 20259:38 AM ET | Mirabella Financial Services LLP | 13G/A | 7.69%8.20M shares | +1.49 ppfrom 6.20% | Sep 30, 2025 | SEC |
| Nov 3, 202511:23 AM ET | Mirabella Financial Services LLP | 13G | 6.20%6.60M shares | New | Jun 30, 2025 | SEC |
| Oct 24, 202511:50 AM ET | River & Mercantile Asset Management LLP | 13D | 5.20%5.50M shares | New | Sep 23, 2025 | SEC |
| Feb 13, 20256:17 PM ET | Cadian Capital Management, LPand 2 others | 13G/A | 8.90%9.34M shares | – | Dec 31, 2024 | SEC |
| Feb 5, 20255:28 PM ET | BlackRock, Inc. | 13G/A | 7.80%8.26M shares | – | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Maxcyte, Inc. shares.
No Form 144 notices for Maxcyte, Inc. are on file.