MAXCYTE, INC. (MXCT) insider trading

By person

19 insiders · 106 transactions

0.6×

Maher Masoud holds only 0.6 times base salary in stock. $387.13K of shares against $590.00K in salary for 2025.

Salary from the company's own proxy. The shares are what Maher Masoud last reported holding, valued at $0.82, the price Common Stock was last bought or sold at on the open market here, on 17 Mar 2026.

Insider

Role

Bought

Sold

Net

Holding

Of company

Worth

Change

Doerfler Douglas

President and CEO

—

$5.54M (26) scheduled

−$5.54M

333,197

0.3228%

$271.56K

−23.1%

Casdin Partners Master Fund, L.P. entity

10% owner

$23.40M (1)

$18.44M (2)

+$4.96M

10,000,000

9.69%

$8.15M

−17.8%

Ross Thomas M.

EVP, GLOBAL SALES

—

$3.13M (27) scheduled

−$3.13M

25,000

0.0242%

$20.38K

—

Murphy Amanda Louise

Chief Financial Officer

—

$1.85M (3) scheduled

−$1.85M

0.0000%

$0.00

—

Holtz Ron

Chief Financial Officer

—

$1.84M (3) scheduled

−$1.84M

125,251

0.1214%

$102.08K

−16.6%

DOUGLAS RICHARD

Director

$678.92K (3)

—

+$678.92K

260,998

0.2529%

$212.71K

—

Erck Stanley C

Director

$137.22K (1)

$547.81K (5) scheduled

−$410.59K

428,749

0.4154%

$349.43K

+73.1%

Johnston John Joseph

Director

—

$389.06K (21) scheduled

−$389.06K

201,581

0.1953%

$164.29K

+67.2%

Masoud Maher

President and CEO

$591.98K (3)

$923.38K (3) scheduled

−$331.40K

475,000

0.4602%

$387.13K

—

Brooke William W

Director

$64.50K (1)

—

+$64.50K

181,300

0.1757%

$147.76K

+260.4%

Swirsky Douglas J

CHIEF FINANCIAL OFFICER

$64.50K (1)

$30.33K (2)

+$34.17K

151,669

0.1470%

$123.61K

—

Hemrajani Rekha

Director

—

$22.38K (1) scheduled

−$22.38K

70,314

0.0681%

$57.31K

—

Sandoval David I.

GENERAL COUNSEL

—

$21.39K (2)

−$21.39K

64,219

0.0622%

$52.34K

+52.9%

Soleymannezhad Ali

Chief Commercial Officer

—

$3.85K (1)

−$3.85K

59,439

0.0576%

$48.44K

+280.4%

Mandell Art

Director

—

395,851

0.3836%

$322.62K

+5.7%

Ahuja Parmeet

Chief Financial Officer

—

187,500

0.1817%

$152.81K

—

Collins Cynthia

Director

—

111,310

0.1079%

$90.72K

—

BALTHROP PATRICK J

Director

—

80,998

0.0785%

$66.01K

—

Al-Wakeel Yasir B.

Director

—

80,998

0.0785%

$66.01K

—

Individual transactions

106

Insider

Date

Role

Action

Price

Amount

Swirsky Douglas J

17 Mar 2026

CHIEF FINANCIAL OFFICER

Sell

10,142

$0.82

$8.27K

Brooke William W

13 Aug 2025

Director

Buy

50,000

$1.29

$64.50K

DOUGLAS RICHARD

13 Aug 2025

Director

Buy

80,000

$1.39

$111.04K

Erck Stanley C

13 Aug 2025

Director

Buy

100,000

$1.37

$137.22K

Masoud Maher

13 Aug 2025

President and CEO

Buy

75,000

$1.37

$102.92K

Swirsky Douglas J

13 Aug 2025

CHIEF FINANCIAL OFFICER

Buy

50,000

$1.29

$64.50K

Hemrajani Rekha

25 Jun 2025

Director

Sold on a plan

10,684

$2.09

$22.38K

Swirsky Douglas J

18 Mar 2025

CHIEF FINANCIAL OFFICER

Sell

6,939

$3.18

$22.06K

Sandoval David I.

18 Mar 2025

GENERAL COUNSEL

Sell

353

$3.18

$1.12K

Soleymannezhad Ali

18 Mar 2025

Chief Commercial Officer

Sell

1,211

$3.18

$3.85K

Johnston John Joseph

27 Jan 2025

Director

Sold after exercise

3,000

$4.65

$13.94K

Sandoval David I.

13 Jan 2025

GENERAL COUNSEL

Sell

4,466

$4.54

$20.27K

Johnston John Joseph

26 Dec 2024

Director

Sold after exercise

3,000

$4.01

$12.02K

Johnston John Joseph

9 Dec 2024

Director

Sold after exercise

2,495

$3.79

$9.46K

Johnston John Joseph

6 Dec 2024

Director

Sold after exercise

505

$3.70

$1.87K

Erck Stanley C

1 Nov 2024

Director

Sold after exercise

47,689

$3.72

$177.40K

Johnston John Joseph

28 Oct 2024

Director

Sold after exercise

3,000

$3.72

$11.17K

Erck Stanley C

2 Oct 2024

Director

Sold after exercise

21,607

$3.71

$80.16K

Erck Stanley C

1 Oct 2024

Director

Sold after exercise

26,082

$3.78

$98.59K

Johnston John Joseph

26 Sep 2024

Director

Sold after exercise

3,000

$3.82

$11.46K

Erck Stanley C

4 Sep 2024

Director

Sold after exercise

29,767

$3.97

$118.17K

Erck Stanley C

3 Sep 2024

Director

Sold after exercise

17,922

$4.10

$73.48K

Johnston John Joseph

26 Aug 2024

Director

Sold after exercise

3,000

$4.28

$12.84K

Ross Thomas M.

2 Aug 2024

EVP, GLOBAL SALES

Sold after exercise

17,857

$4.36

$77.87K

Ross Thomas M.

1 Aug 2024

EVP, GLOBAL SALES

Sold after exercise

15,476

$4.54

$70.26K

Johnston John Joseph

26 Jul 2024

Director

Sold after exercise

3,000

$4.75

$14.24K

Ross Thomas M.

9 Jul 2024

EVP, GLOBAL SALES

Sold after exercise

13,531

$4.03

$54.58K

Ross Thomas M.

8 Jul 2024

EVP, GLOBAL SALES

Sold after exercise

19,802

$4.03

$79.78K

Johnston John Joseph

27 Jun 2024

Director

Sold after exercise

10,000

$3.99

$39.90K

Ross Thomas M.

20 Jun 2024

EVP, GLOBAL SALES

Sold after exercise

33,333

$4.09

$136.47K

Masoud Maher

10 Jun 2024

President and CEO

Buy

70,443

$4.90

$345.24K

Masoud Maher

7 Jun 2024

President and CEO

Buy

29,557

$4.87

$143.82K

Johnston John Joseph

26 Mar 2024

Director

Sold after exercise

5,000

$4.41

$22.03K

Johnston John Joseph

26 Feb 2024

Director

Sold after exercise

5,000

$4.60

$23.01K

Johnston John Joseph

26 Jan 2024

Director

Sold after exercise

5,000

$5.12

$25.59K

Johnston John Joseph

26 Dec 2023

Director

Sold after exercise

5,000

$4.53

$22.65K

Doerfler Douglas

5 Dec 2023

President and CEO

Sold after exercise

99,442

$5.17

$514.12K

Doerfler Douglas

4 Dec 2023

President and CEO

Sold after exercise

25,008

$5.01

$125.29K

Doerfler Douglas

1 Dec 2023

President and CEO

Sold after exercise

20,200

$5.00

$101.00K

Doerfler Douglas

29 Nov 2023

President and CEO

Sold after exercise

5,350

$5.00

$26.75K

Johnston John Joseph

27 Nov 2023

Director

Sold after exercise

5,000

$4.59

$22.95K

Johnston John Joseph

14 Nov 2023

Director

Sold after exercise

10,000

$3.71

$37.10K

Johnston John Joseph

30 Aug 2023

Director

Sold after exercise

2,841

$3.70

$10.51K

Johnston John Joseph

29 Aug 2023

Director

Sold after exercise

2,059

$3.70

$7.62K

Johnston John Joseph

28 Aug 2023

Director

Sold after exercise

100

$3.70

$370.00

Johnston John Joseph

26 Jul 2023

Director

Sold after exercise

5,000

$4.75

$23.75K

Doerfler Douglas

12 Jul 2023

President and CEO

Sold after exercise

16,757

$5.02

$84.12K

Doerfler Douglas

11 Jul 2023

President and CEO

Sold after exercise

12,798

$5.04

$64.50K

Doerfler Douglas

10 Jul 2023

President and CEO

Sold after exercise

445

$5.01

$2.23K

Johnston John Joseph

27 Jun 2023

Director

Sold after exercise

7,471

$4.39

$32.80K

Johnston John Joseph

26 Jun 2023

Director

Sold after exercise

7,529

$4.49

$33.81K

Doerfler Douglas

14 Jun 2023

President and CEO

Sold after exercise

28,883

$5.04

$145.57K

Doerfler Douglas

13 Jun 2023

President and CEO

Sold after exercise

14,968

$5.03

$75.29K

Doerfler Douglas

3 May 2023

President and CEO

Sold after exercise

16,149

$5.02

$81.07K

Doerfler Douglas

12 Apr 2023

President and CEO

Sold after exercise

12,718

$5.00

$63.59K

Ross Thomas M.

12 Apr 2023

EVP, Global Sales & Marketing

Sold after exercise

5,583

$5.00

$27.92K

Doerfler Douglas

11 Apr 2023

President and CEO

Sold after exercise

2,182

$5.00

$10.91K

Ross Thomas M.

11 Apr 2023

EVP, Global Sales & Marketing

Sold after exercise

8,451

$5.00

$42.26K

Doerfler Douglas

10 Apr 2023

President and CEO

Sold after exercise

100

$5.00

$500.00

Ross Thomas M.

10 Apr 2023

EVP, Global Sales & Marketing

Sold after exercise

100

$5.00

$500.00

Doerfler Douglas

6 Apr 2023

President and CEO

Sold after exercise

27,862

$5.03

$140.15K

Ross Thomas M.

6 Apr 2023

EVP, Global Sales & Marketing

Sold after exercise

27,193

$5.03

$136.78K

Doerfler Douglas

5 Apr 2023

President and CEO

Sold after exercise

6,961

$5.00

$34.81K

Ross Thomas M.

5 Apr 2023

EVP, Global Sales & Marketing

Sold after exercise

6,967

$5.00

$34.84K

Doerfler Douglas

4 Apr 2023

President and CEO

Sold after exercise

7,470

$5.03

$37.57K

Ross Thomas M.

4 Apr 2023

EVP, Global Sales & Marketing

Sold after exercise

7,266

$5.03

$36.55K

Doerfler Douglas

3 Apr 2023

President and CEO

Sold after exercise

100

$5.01

$501.00

Ross Thomas M.

3 Apr 2023

EVP, Global Sales & Marketing

Sold after exercise

100

$5.01

$501.00

Doerfler Douglas

31 Mar 2023

President and CEO

Sold after exercise

2,607

$5.00

$13.04K

Ross Thomas M.

31 Mar 2023

EVP, Global Sales & Marketing

Sold after exercise

2,607

$5.00

$13.04K

DOUGLAS RICHARD

29 Mar 2023

Director

Buy

80,000

$4.32

$345.48K

Doerfler Douglas

2 Feb 2023

President and CEO

Sold after exercise

10,665

$5.77

$61.54K

Ross Thomas M.

2 Feb 2023

EVP, Global Sales & Marketing

Sold after exercise

11,575

$5.77

$66.79K

Doerfler Douglas

1 Feb 2023

President and CEO

Sold after exercise

19,335

$5.69

$110.02K

Ross Thomas M.

1 Feb 2023

EVP, Global Sales & Marketing

Sold after exercise

17,558

$5.68

$99.73K

Ross Thomas M.

5 Jan 2023

EVP, Global Sales & Marketing

Sold after exercise

9,467

$5.04

$47.71K

Doerfler Douglas

5 Jan 2023

President and CEO

Sold after exercise

10,234

$5.04

$51.58K

Ross Thomas M.

4 Jan 2023

EVP, Global Sales & Marketing

Sold after exercise

9,153

$5.07

$46.41K

Doerfler Douglas

4 Jan 2023

President and CEO

Sold after exercise

9,153

$5.07

$46.41K

Ross Thomas M.

3 Jan 2023

EVP, Global Sales & Marketing

Sold after exercise

10,513

$5.13

$53.93K

Doerfler Douglas

3 Jan 2023

President and CEO

Sold after exercise

10,613

$5.13

$54.44K

Ross Thomas M.

5 Dec 2022

EVP, Global Sales & Marketing

Sold after exercise

14,133

$5.59

$79.00K

Ross Thomas M.

2 Dec 2022

EVP, Global Sales & Marketing

Sold after exercise

15,000

$6.02

$90.30K

Ross Thomas M.

2 Nov 2022

EVP, Global Sales & Marketing

Sold after exercise

5,704

$6.85

$39.07K

Ross Thomas M.

1 Nov 2022

EVP, Global Sales & Marketing

Sold after exercise

23,429

$6.94

$162.60K

Ross Thomas M.

11 Oct 2022

EVP, Global Sales & Marketing

Sold after exercise

4,282

$6.51

$27.88K

Ross Thomas M.

10 Oct 2022

EVP, Global Sales & Marketing

Sold after exercise

24,851

$6.45

$160.29K

Casdin Partners Master Fund, L.P.

3 Oct 2022

10% owner

Sell

735,786

$6.15

$4.53M

Casdin Partners Master Fund, L.P.

1 Jul 2022

10% owner

Sell

3,235,548

$4.30

$13.91M

DOUGLAS RICHARD

22 Nov 2021

Director

Buy

20,000

$11.12

$222.40K

Doerfler Douglas

16 Nov 2021

President and CEO

Sold after exercise

74,890

$12.08

$904.67K

Holtz Ron

16 Nov 2021

SVP and CAO

Sold after exercise

39,130

$12.08

$472.69K

Ross Thomas M.

16 Nov 2021

EVP, Global Sales

Sold after exercise

31,163

$12.08

$376.45K

Murphy Amanda Louise

16 Nov 2021

Chief Financial Officer

Sold after exercise

37,306

$12.08

$450.66K

Masoud Maher

16 Nov 2021

EVP and General Counsel

Sold after exercise

18,562

$12.08

$224.23K

Doerfler Douglas

15 Nov 2021

President and CEO

Sold after exercise

123,263

$12.16

$1.50M

Holtz Ron

15 Nov 2021

SVP and CAO

Sold after exercise

64,385

$12.16

$782.92K

Ross Thomas M.

15 Nov 2021

EVP, Global Sales

Sold after exercise

51,352

$12.16

$624.44K

Murphy Amanda Louise

15 Nov 2021

Chief Financial Officer

Sold after exercise

61,591

$12.16

$748.95K

Masoud Maher

15 Nov 2021

EVP and General Counsel

Sold after exercise

30,716

$12.16

$373.51K

Doerfler Douglas

12 Nov 2021

President and CEO

Sold after exercise

101,847

$12.66

$1.29M

Holtz Ron

12 Nov 2021

SVP and CAO

Sold after exercise

46,485

$12.65

$588.04K

Ross Thomas M.

12 Nov 2021

EVP, Global Sales

Sold after exercise

42,590

$12.66

$539.19K

Murphy Amanda Louise

12 Nov 2021

Chief Financial Officer

Sold after exercise

51,103

$12.66

$646.96K

Masoud Maher

12 Nov 2021

EVP and General Counsel

Sold after exercise

25,722

$12.66

$325.64K

Casdin Partners Master Fund, L.P.

30 Jul 2021

10% owner

Buy

1,800,000

$13.00

$23.40M

MAXCYTE, INC.

By person

Individual transactions

What was left out