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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.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Maxcyte, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
0 filings
Insiders trading
0
Net value
$0
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Maxcyte, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Maxcyte, Inc.
NameTitleLast reported holdingLast filingFilings, past year
Douglas RichardDirector260,998Jun 22, 20261
Balthrop Patrick JDirector80,998Jun 22, 20261
Erck Stanley CDirector428,749Jun 22, 20261
Collins CynthiaDirector111,310Jun 22, 20261
Brooke William WDirector181,300Jun 22, 20261
Al-Wakeel Yasir B.Director80,998Jun 22, 20261
Hemrajani RekhaDirector70,314Jun 22, 20261
Johnston John JosephDirector201,581Jun 22, 20261
Ahuja ParmeetChief Financial Officer187,500Apr 17, 20262
Masoud MaherPresident and CEO475,000Mar 31, 20261
Swirsky Douglas JCHIEF FINANCIAL OFFICER151,669Mar 19, 20261
Sandoval David I.GENERAL COUNSEL64,219Mar 20, 20250
Soleymannezhad AliChief Commercial Officer59,439Mar 20, 20250
Ross Thomas M.EVP, GLOBAL SALES25,000Aug 5, 20240
Mandell ArtDirector395,851Jun 13, 20240
Doerfler DouglasPresident and CEO333,197Dec 6, 20230
Holtz RonChief Financial Officer125,251Mar 21, 20230
Sumen CenkChief Scientific Officer–Mar 21, 20230
Casdin Partners GP, LLC10% Owner10,000,000Oct 5, 20220
Casdin Capital, LLC10% Owner10,000,000Oct 5, 20220
Casdin Eli10% Owner10,000,000Oct 5, 20220
Casdin Partners Master Fund, L.P.10% Owner10,000,000Oct 5, 20220
Murphy Amanda LouiseChief Financial Officer0Mar 29, 20220
Thompson J Stark PhDDirector–Aug 11, 20210

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Aug 3, 2021 (view filing)6:08 PM ETJul 304 daysCasdin Partners GP, LLC and 3 others10% OwnerPPurchaseCommon Stock, par value $0.01 per share+1.80M$13.00+$23.4M+14.8%14.0M after
Nov 16, 2021 (view filing)Nov 12-164 daysRoss Thomas M.EVP, Global SalesSSale−125.1K$12.31−$1.54M−100.0%0 after3 lots
Nov 16, 2021 (view filing)Nov 12-164 daysMurphy Amanda LouiseChief Financial OfficerSSale−150.0K$12.31−$1.85M−100.0%0 after3 lots
Nov 16, 2021 (view filing)Nov 12-164 daysMasoud MaherEVP and General CounselSSale−75.0K$12.31−$923.4K−100.0%0 after3 lots
Nov 16, 2021 (view filing)7:08 PM ETNov 12-164 daysDoerfler DouglasPresident and CEOSSale−300.0K$12.31−$3.69M−47.4%333.2K after3 lots
Nov 16, 2021 (view filing)7:09 PM ETNov 12-164 daysHoltz RonSVP and CAOSSale−150.0K$12.29−$1.84M−54.5%125.3K after3 lots
Nov 23, 2021 (view filing)Nov 221 dayDouglas RichardDirectorPPurchase+20.0K$11.12+$222.4KNew position20.0K after
Jul 6, 2022 (view filing)5:01 PM ETJul 15 daysCasdin Partners GP, LLC and 3 others10% OwnerSSaleCommon Stock, par value $0.01 per share−3.24M$4.30−$13.9M−23.2%10.7M after
Oct 5, 2022 (view filing)4:24 PM ETOct 32 daysCasdin Partners GP, LLC and 3 others10% OwnerSSaleCommon Stock, par value $0.01 per share−735.8K$6.15−$4.53M−6.9%10.0M after
Oct 12, 2022 (view filing)Oct 10-112 daysRoss Thomas M.EVP, Global Sales & MarketingSSale−29.1K$6.46−$188.2K−100.0%0 after2 lots
Nov 3, 2022 (view filing)Nov 1-22 daysRoss Thomas M.EVP, Global Sales & MarketingSSale−29.1K$6.92−$201.7K−100.0%0 after2 lots
Dec 6, 2022 (view filing)Dec 2-54 daysRoss Thomas M.EVP, Global Sales & MarketingSSale−29.1K$5.81−$169.3K−100.0%0 after2 lots
Jan 5, 2023 (view filing)Jan 3-52 daysRoss Thomas M.EVP, Global Sales & MarketingSSale−29.1K$5.08−$148.1K−100.0%0 after3 lots
Jan 5, 2023 (view filing)5:39 PM ETJan 3-52 daysDoerfler DouglasPresident and CEOSSale−30.0K$5.08−$152.4K−8.3%333.2K after3 lots
Feb 3, 2023 (view filing)Feb 1-22 daysRoss Thomas M.EVP, Global Sales & MarketingSSale−29.1K$5.72−$166.5K−100.0%0 after2 lots
Feb 3, 2023 (view filing)4:31 PM ETFeb 1-22 daysDoerfler DouglasPresident and CEOSSale−30.0K$5.72−$171.6K−8.3%333.2K after2 lots
Mar 30, 2023 (view filing)Mar 291 dayDouglas RichardDirectorPPurchase+80.0K$4.32+$345.6K+400.0%100.0K after
Apr 4, 2023 (view filing)Mar 31-Apr 44 daysRoss Thomas M.EVP, Global Sales & MarketingSSale−9.97K$5.02−$50.1K−100.0%0 after3 lots10b5-1
Apr 4, 2023 (view filing)6:59 PM ETMar 31-Apr 44 daysDoerfler DouglasPresident and CEOSSale−10.2K$5.02−$51.1K−3.0%333.2K after3 lots10b5-1
Apr 7, 2023 (view filing)Apr 5-62 daysRoss Thomas M.EVP, Global Sales & MarketingSSale−34.2K$5.02−$171.6K−100.0%0 after2 lots10b5-1
Apr 7, 2023 (view filing)4:42 PM ETApr 5-62 daysDoerfler DouglasPresident and CEOSSale−34.8K$5.02−$175.0K−9.5%333.2K after2 lots10b5-1
Apr 12, 2023 (view filing)Apr 10-122 daysRoss Thomas M.EVP, Global Sales & MarketingSSale−14.1K$5.00−$70.7K−100.0%0 after3 lots10b5-1
Apr 12, 2023 (view filing)4:37 PM ETApr 10-122 daysDoerfler DouglasPresident and CEOSSale−15.0K$5.00−$75.0K−4.3%333.2K after3 lots10b5-1
May 5, 2023 (view filing)5:09 PM ETMay 32 daysDoerfler DouglasPresident and CEOSSale−16.1K$5.02−$81.1K−4.6%333.2K after10b5-1
Jun 15, 2023 (view filing)4:30 PM ETJun 13-142 daysDoerfler DouglasPresident and CEOSSale−43.9K$5.04−$220.9K−11.6%333.2K after2 lots10b5-1
Jun 28, 2023 (view filing)Jun 26-272 daysJohnston John JosephDirectorSSale−15.0K$4.44−$66.6K−11.1%120.6K after2 lots10b5-1
Jul 12, 2023 (view filing)6:06 PM ETJul 10-122 daysDoerfler DouglasPresident and CEOSSale−30.0K$5.03−$150.9K−8.3%333.2K after3 lots10b5-1
Jul 28, 2023 (view filing)Jul 262 daysJohnston John JosephDirectorSSale−5.00K$4.75−$23.8K−4.0%120.6K after10b5-1
Aug 30, 2023 (view filing)Aug 28-302 daysJohnston John JosephDirectorSSale−5.00K$3.70−$18.5K−4.0%120.6K after3 lots10b5-1
Nov 16, 2023 (view filing)Nov 142 daysJohnston John JosephDirectorSSale−10.0K$3.71−$37.1K−7.7%120.6K after10b5-1
Nov 29, 2023 (view filing)Nov 272 daysJohnston John JosephDirectorSSale−5.00K$4.59−$22.9K−4.0%120.6K after10b5-1
Dec 1, 2023 (view filing)5:14 PM ETNov 29-Dec 12 daysDoerfler DouglasPresident and CEOSSale−25.6K$5.00−$127.8K−7.1%333.2K after2 lots
Dec 6, 2023 (view filing)4:15 PM ETDec 4-52 daysDoerfler DouglasPresident and CEOSSale−124.5K$5.14−$639.4K−27.2%333.2K after2 lots
Dec 28, 2023 (view filing)Dec 262 daysJohnston John JosephDirectorSSale−5.00K$4.53−$22.6K−4.0%120.6K after10b5-1
Jan 30, 2024 (view filing)Jan 264 daysJohnston John JosephDirectorSSale−5.00K$5.12−$25.6K−4.0%120.6K after10b5-1
Feb 28, 2024 (view filing)Feb 262 daysJohnston John JosephDirectorSSale−5.00K$4.60−$23.0K−4.0%120.6K after10b5-1
Mar 28, 2024 (view filing)Mar 262 daysJohnston John JosephDirectorSSale−5.00K$4.41−$22.1K−4.0%120.6K after10b5-1
Jun 10, 2024 (view filing)Jun 7-103 daysMasoud MaherPresident and CEOPPurchase+100.0K$4.89+$489.1KNew position100.0K after2 lots
Jun 24, 2024 (view filing)Jun 204 daysRoss Thomas M.EVP, GLOBAL SALESSSale−33.3K$4.09−$136.3K−57.1%25.0K after10b5-1
Jul 1, 2024 (view filing)Jun 274 daysJohnston John JosephDirectorSSale−10.0K$3.99−$39.9K−6.6%141.9K after10b5-1
Jul 10, 2024 (view filing)Jul 8-92 daysRoss Thomas M.EVP, GLOBAL SALESSSale−33.3K$4.03−$134.3K−57.1%25.0K after2 lots10b5-1
Jul 30, 2024 (view filing)Jul 264 daysJohnston John JosephDirectorSSale−3.00K$4.75−$14.3K−2.1%141.9K after10b5-1
Aug 5, 2024 (view filing)Aug 1-24 daysRoss Thomas M.EVP, GLOBAL SALESSSale−33.3K$4.44−$148.1K−57.1%25.0K after2 lots10b5-1
Aug 28, 2024 (view filing)Aug 262 daysJohnston John JosephDirectorSSale−3.00K$4.28−$12.8K−2.1%141.9K after10b5-1
Sep 5, 2024 (view filing)5:10 PM ETSep 3-42 daysErck Stanley CDirectorSSale−47.7K$4.02−$191.7K−15.1%269.1K after2 lots10b5-1
Sep 30, 2024 (view filing)Sep 264 daysJohnston John JosephDirectorSSale−3.00K$3.82−$11.5K−2.1%141.9K after10b5-1
Oct 2, 2024 (view filing)5:03 PM ETOct 1-21 dayErck Stanley CDirectorSSale−47.7K$3.75−$178.8K−15.1%269.1K after2 lots10b5-1
Oct 30, 2024 (view filing)Oct 282 daysJohnston John JosephDirectorSSale−3.00K$3.72−$11.2K−2.1%141.9K after10b5-1
Nov 5, 2024 (view filing)4:25 PM ETNov 14 daysErck Stanley CDirectorSSale−47.7K$3.72−$177.4K−15.1%269.1K after10b5-1
Dec 10, 2024 (view filing)Dec 6-94 daysJohnston John JosephDirectorSSale−3.00K$3.77−$11.3K−2.1%141.9K after2 lots10b5-1