MAXCYTE, INC. - Common Stock, par value $0.01 per share (MXCT)

CUSIP: 57777K106

Q3 2021 13F Holders as of 30 Sep 2021

Holder snapshot 5 signals
Share change
+54,493,245
SEC-reported price per share
$12.21
Number of holders
78
Value change
+$664,687,301
Number of buys
78
Security identity Names, identifiers, and filing context for this profile. 1 source field
Shares outstanding
105,230,057

Security key

57777K106

Report period

Q3 2021

Institutions

78

Top holders

10

Ownership snapshot

Top reported holders of MXCT - MAXCYTE, INC. - Common Stock, par value $0.01 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
J. Stark Thompson PhD
Disclosed value leader
J. Stark Thompson PhD
Comparable rows
0/1
Latest evidence
09 Aug 2021
3/4/5 Highest disclosed value: $502,459 1 rows are not safely comparable across share classes.

Quick read

J. Stark Thompson PhD has the largest disclosed position value at $502.5K.

0 of 1 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens J. Stark Thompson PhD's linked filing trail.
Disclosed position value Top 1
J. Stark Thompson PhD $502.5K

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

Detailed SEC evidence table Showing 1-1 of 1 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
J. Stark Thompson PhD
3/4/5
Director
mixed-class rows
$502,459
120,918 shares
mixed-class rows
09 Aug 2021
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2021

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
78
Shares
54,493,245
Rows available
78
Investor Option Weight % Change % SEC-reported value * Price Shares Share Change Activity Report Period

* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q3 2021 vs Q4 2025 Across Filers

Q4 2025 holders
113
Q3 2021 holders
78
Holder diff
-35
Investor Q4 2025 Shares Q3 2021 Shares Share Diff Share Chg % Q4 2025 value Q3 2021 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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