MaxCyte Inc (MXCT)

The most recent insider trading activity at MaxCyte Inc occurred on March 17, 2026, involving a sale of 10,142 shares by Chief Financial Officer Douglas J. Swirsky. This transaction follows a period of notable buying activity by multiple executives during August 2025. No further trades have been reported since this spring event.
Ticker: MXCT Exchange: LSE


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Purchase Sale Planned purchase Planned sale Net purchase Net sale Buy signal Sell signal Earnings
No insider activity signals detected

Insider trades have not triggered unusual activity signals for this company.

Top insiders
Trades
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
1.2
Swirsky Douglas J CHIEF FINANCIAL OFFICER Officer
Transaction date
Sale
Price
219.79
Quantity 88,498 -4.8%
Value US$2,456,410
3.6
DOUGLAS RICHARD Non-Executive Director
Transaction date
Purchase
Price
277.52
Quantity 33,595 -48.5%
Value US$3,938,553
Brooke William W Non-Executive Director
Transaction date
Purchase
Price
19.82
Quantity 97,913 +24.6%
Value US$2,542,598
Masoud Maher President and CEO Executive Director
Transaction date
Purchase
Price
1.37
Quantity 75,000 +75.0%
Value US$102,915
1.2
Swirsky Douglas J CHIEF FINANCIAL OFFICER Officer
Transaction date
Purchase
Price
1.29
Quantity 50,000 +44.7%
Value US$64,500
Erck Stanley C Non-Executive Director
Transaction date
Purchase
Price
1.37
Quantity 100,000 +33.5%
Value US$137,220
1.2
Hemrajani Rekha Non-Executive Director
Transaction date
Planned sale
Price
2.09
Quantity 10,684 -21.1%
Value US$22,378
1.2
Hemrajani Rekha Director Non-Executive Director
Transaction date
Proposed sale
Price
2.09
Quantity 10,684
Value US$22,378
Sandoval David I. GENERAL COUNSEL Officer
Transaction date
Sale
Price
3.18
Quantity 353 -0.5%
Value US$1,122
Soleymannezhad Ali Chief Commercial Officer Officer
Transaction date
Sale
Price
3.18
Quantity 1,211 -2.0%
Value US$3,850
1.2
Swirsky Douglas J CHIEF FINANCIAL OFFICER Officer
Transaction date
Sale
Price
3.18
Quantity 6,939 -5.8%
Value US$22,061
Johnston John Joseph Non-Executive Director
Transaction date
Planned sale
Price
4.65
Quantity 3,000 -2.1%
Value US$13,935
Sandoval David I. GENERAL COUNSEL Officer
Transaction date
Sale
Price
4.54
Quantity 4,466 -9.7%
Value US$20,272
John Johnston Non-Executive Director Executive Director
Transaction date
Sale
Price
4.01
Quantity 3,000
Value US$12,020
Johnston John Joseph Non-Executive Director
Transaction date
Planned sale
Price
4.01
Quantity 3,000 -2.1%
Value US$12,021
Transaction date
Proposed sale
Price
4.11
Quantity 12,000
Value US$49,320
Johnston John Joseph Non-Executive Director
Transaction date
Planned sale
Price
3.79
Quantity 2,495 -1.7%
Value US$9,459
Johnston John Joseph Non-Executive Director
Transaction date
Planned sale
Price
3.70
Quantity 505 -0.4%
Value US$1,869
Stanley Erck Non-Executive Director Executive Director
Transaction date
Sale
Price
3.72
Quantity 47,689
Value US$177,198
Erck Stanley C Non-Executive Director
Transaction date
Planned sale
Price
3.72
Quantity 47,689 -15.1%
Value US$177,403
John Johnston Non-Executive Director Executive Director
Transaction date
Sale
Price
3.72
Quantity 3,000
Value US$11,167
Johnston John Joseph Non-Executive Director
Transaction date
Planned sale
Price
3.72
Quantity 3,000 -2.1%
Value US$11,166
Stanley Erck Non-Executive Director Executive Director
Transaction date
Sale
Price
3.71
Quantity 21,607
Value US$80,229
Erck Stanley C Non-Executive Director
Transaction date
Planned sale
Price
3.71
Quantity 21,607 -7.4%
Value US$80,162
Stanley Erck Non-Executive Director Executive Director
Transaction date
Sale
Price
3.78
Quantity 26,082
Value US$98,548
Erck Stanley C Non-Executive Director
Transaction date
Planned sale
Price
3.78
Quantity 26,082 -8.8%
Value US$98,590
John Johnston Non-Executive Director Executive Director
Transaction date
Sale
Price
3.82
Quantity 3,000
Value US$11,460
Johnston John Joseph Non-Executive Director
Transaction date
Planned sale
Price
3.82
Quantity 3,000 -2.1%
Value US$11,460
Transaction date
Proposed sale
Price
3.81
Quantity 9,000
Value US$34,290
Stanley Erck Non-Executive Director Executive Director
Transaction date
Sale
Price
3.97
Quantity 29,767
Value US$118,133
Erck Stanley C Non-Executive Director
Transaction date
Planned sale
Price
3.97
Quantity 29,767 -10.0%
Value US$118,175
Stanley Erck Non-Executive Director Executive Director
Transaction date
Sale
Price
4.10
Quantity 17,922
Value US$73,441
Erck Stanley C Non-Executive Director
Transaction date
Planned sale
Price
4.10
Quantity 17,922 -6.2%
Value US$73,480
Erck Stanley C Officer Officer
Transaction date
Proposed sale
Price
4.32
Quantity 143,067
Value US$618,049
John Johnston Non-Executive Director Executive Director
Transaction date
Sale
Price
4.28
Quantity 3,000
Value US$12,841
Johnston John Joseph Non-Executive Director
Transaction date
Planned sale
Price
4.28
Quantity 3,000 -2.1%
Value US$12,840
Ross Thomas M. EVP, GLOBAL SALES Officer
Transaction date
Planned sale
Price
4.36
Quantity 17,857 -41.7%
Value US$77,874
Ross Thomas M. EVP, GLOBAL SALES Officer
Transaction date
Planned sale
Price
4.54
Quantity 15,476 -38.2%
Value US$70,261
John Johnston Non-Executive Director Executive Director
Transaction date
Sale
Price
4.75
Quantity 3,000
Value US$14,239
Johnston John Joseph Non-Executive Director
Transaction date
Planned sale
Price
4.75
Quantity 3,000 -2.1%
Value US$14,238
Ross Thomas M. EVP, GLOBAL SALES Officer
Transaction date
Planned sale
Price
4.03
Quantity 13,531 -35.1%
Value US$54,584
Ross Thomas M. EVP, GLOBAL SALES Officer
Transaction date
Planned sale
Price
4.03
Quantity 19,802 -44.2%
Value US$79,782
John Johnston Non-Executive Director Executive Director
Transaction date
Sale
Price
3.99
Quantity 10,000
Value US$39,898
Johnston John Joseph Non-Executive Director
Transaction date
Planned sale
Price
3.99
Quantity 10,000 -6.6%
Value US$39,900
Transaction date
Proposed sale
Price
3.98
Quantity 16,000
Value US$63,680
Ross Thomas M. EVP, GLOBAL SALES Officer
Transaction date
Planned sale
Price
4.09
Quantity 33,333 -57.1%
Value US$136,465
Ross Thomas M. Officer Officer
Transaction date
Proposed sale
Price
4.41
Quantity 133,332
Value US$587,994
Maher Masoud President, CEO and Director Executive Director
Transaction date
Purchase
Price
4.90
Quantity 70,443
Value US$345,248
Masoud Maher President and CEO Executive Director
Transaction date
Purchase
Price
4.90
Quantity 70,443 +238.3%
Value US$345,241
Maher Masoud President, CEO and Director Executive Director
Transaction date
Purchase
Price
4.87
Quantity 29,557
Value US$143,824
Masoud Maher President and CEO Executive Director
Transaction date
Purchase
Price
4.87
Quantity 29,557 +inf%
Value US$143,824
John Johnston Non-Executive Director Executive Director
Transaction date
Sale
Price
4.41
Quantity 5,000
Value US$22,026
Johnston John Joseph Non-Executive Director
Transaction date
Planned sale
Price
4.41
Quantity 5,000 -4.0%
Value US$22,025
John Johnston Non-Executive Director Executive Director
Transaction date
Sale
Price
4.60
Quantity 5,000
Value US$23,002
Johnston John Joseph Non-Executive Director
Transaction date
Planned sale
Price
4.60
Quantity 5,000 -4.0%
Value US$23,005
Transaction date
Proposed sale
Price
4.59
Quantity 10,000
Value US$45,900
John Johnston Non-Executive Director Executive Director
Transaction date
Sale
Price
5.12
Quantity 5,000
Value US$25,582
Johnston John Joseph Non-Executive Director
Transaction date
Planned sale
Price
5.12
Quantity 5,000 -4.0%
Value US$25,585
John Johnston Non-Executive Director Executive Director
Transaction date
Sale
Price
4.53
Quantity 5,000
Value US$22,663
Johnston John Joseph Non-Executive Director
Transaction date
Planned sale
Price
4.53
Quantity 5,000 -4.0%
Value US$22,650
Doug Doerfler Chief Executive Officer Officer
Transaction date
Sale
Price
5.17
Quantity 99,442
Value US$514,483
Doerfler Douglas President and CEO Executive Director
Transaction date
Planned sale
Price
5.17
Quantity 99,442 -23.0%
Value US$514,115
Doug Doerfler Chief Executive Officer Officer
Transaction date
Sale
Price
5.01
Quantity 25,008
Value US$125,178
Doerfler Douglas President and CEO Executive Director
Transaction date
Planned sale
Price
5.01
Quantity 25,008 -7.0%
Value US$125,290
Doug Doerfler Chief Executive Officer Officer
Transaction date
Sale
Price
5.00
Quantity 20,200
Value US$101,000
Doerfler Douglas President and CEO Executive Director
Transaction date
Planned sale
Price
5.00
Quantity 20,200 -5.7%
Value US$101,000
Doug Doerfler Chief Executive Officer Officer
Transaction date
Sale
Price
5.00
Quantity 5,350
Value US$26,763
Doerfler Douglas President and CEO Executive Director
Transaction date
Planned sale
Price
5.00
Quantity 5,350 -1.6%
Value US$26,750
Doerfler Douglas Officer Officer
Transaction date
Proposed sale
Price
4.68
Quantity 150,000
Value US$702,000
John Johnston Non-Executive Director Executive Director
Transaction date
Sale
Price
4.59
Quantity 5,000
Value US$22,959
Johnston John Joseph Non-Executive Director
Transaction date
Planned sale
Price
4.59
Quantity 5,000 -4.0%
Value US$22,950
Johnston John Joseph Non-Executive Director
Transaction date
Planned sale
Price
3.71
Quantity 10,000 -7.7%
Value US$37,100
Transaction date
Proposed sale
Price
3.71
Quantity 20,000
Value US$74,200
John Johnston Non-Executive Director Executive Director
Transaction date
Sale
Price
3.70
Quantity 2,841
Value US$10,523
Johnston John Joseph Non-Executive Director
Transaction date
Planned sale
Price
3.70
Quantity 2,841 -2.3%
Value US$10,512
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value
Number of shares Price Value Details
2026-03-19 2026-03-17 S Sale

CHIEF FINANCIAL OFFICER

Officer
88,498 -4.8%
219.79
US$2,456,410
88,498 -4.8% 219.79 US$2,456,410
2025-08-13 2025-08-13 B Purchase Non-Executive Director
33,595 -48.5%
277.52
US$3,938,553
33,595 -48.5% 277.52 US$3,938,553
2025-08-13 2025-08-13 B Purchase Non-Executive Director
97,913 +24.6%
19.82
US$2,542,598
97,913 +24.6% 19.82 US$2,542,598
2025-08-13 2025-08-13 B Purchase

President and CEO

Executive Director
75,000 +75.0%
1.37
US$102,915
75,000 +75.0% 1.37 US$102,915
2025-08-13 2025-08-13 B Purchase

CHIEF FINANCIAL OFFICER

Officer
50,000 +44.7%
1.29
US$64,500
50,000 +44.7% 1.29 US$64,500
2025-08-13 2025-08-13 B Purchase Non-Executive Director
100,000 +33.5%
1.37
US$137,220
100,000 +33.5% 1.37 US$137,220
2025-08-27 2025-06-25 PlS Planned sale Non-Executive Director
10,684 -21.1%
2.09
US$22,378
10,684 -21.1% 2.09 US$22,378
2025-06-25 2025-06-25 PrS Proposed sale

Director

Non-Executive Director
10,684
2.09
US$22,378
10,684 2.09 US$22,378
2025-03-20 2025-03-18 S Sale

GENERAL COUNSEL

Officer
353 -0.5%
3.18
US$1,122
353 -0.5% 3.18 US$1,122
2025-03-20 2025-03-18 S Sale

Chief Commercial Officer

Officer
1,211 -2.0%
3.18
US$3,850
1,211 -2.0% 3.18 US$3,850
2025-03-20 2025-03-18 S Sale

CHIEF FINANCIAL OFFICER

Officer
6,939 -5.8%
3.18
US$22,061
6,939 -5.8% 3.18 US$22,061
2025-01-29 2025-01-27 PlS Planned sale Non-Executive Director
3,000 -2.1%
4.65
US$13,935
3,000 -2.1% 4.65 US$13,935
2025-01-14 2025-01-13 S Sale

GENERAL COUNSEL

Officer
4,466 -9.7%
4.54
US$20,272
4,466 -9.7% 4.54 US$20,272
2024-12-31 2024-12-26 S Sale John Johnston

Non-Executive Director

Executive Director
3,000
4.01
US$12,020
3,000 4.01 US$12,020
2024-12-30 2024-12-26 PlS Planned sale Non-Executive Director
3,000 -2.1%
4.01
US$12,021
3,000 -2.1% 4.01 US$12,021
2024-12-26 2024-12-26 PrS Proposed sale

Affiliate

12,000
4.11
US$49,320
12,000 4.11 US$49,320
2024-12-10 2024-12-09 PlS Planned sale Non-Executive Director
2,495 -1.7%
3.79
US$9,459
2,495 -1.7% 3.79 US$9,459
2024-12-10 2024-12-06 PlS Planned sale Non-Executive Director
505 -0.4%
3.70
US$1,869
505 -0.4% 3.70 US$1,869
2024-11-06 2024-11-01 S Sale

Non-Executive Director

Executive Director
47,689
3.72
US$177,198
47,689 3.72 US$177,198
2024-11-05 2024-11-01 PlS Planned sale Non-Executive Director
47,689 -15.1%
3.72
US$177,403
47,689 -15.1% 3.72 US$177,403
2024-10-31 2024-10-28 S Sale John Johnston

Non-Executive Director

Executive Director
3,000
3.72
US$11,167
3,000 3.72 US$11,167
2024-10-30 2024-10-28 PlS Planned sale Non-Executive Director
3,000 -2.1%
3.72
US$11,166
3,000 -2.1% 3.72 US$11,166
2024-10-03 2024-10-02 S Sale

Non-Executive Director

Executive Director
21,607
3.71
US$80,229
21,607 3.71 US$80,229
2024-10-02 2024-10-02 PlS Planned sale Non-Executive Director
21,607 -7.4%
3.71
US$80,162
21,607 -7.4% 3.71 US$80,162
2024-10-03 2024-10-01 S Sale

Non-Executive Director

Executive Director
26,082
3.78
US$98,548
26,082 3.78 US$98,548
2024-10-02 2024-10-01 PlS Planned sale Non-Executive Director
26,082 -8.8%
3.78
US$98,590
26,082 -8.8% 3.78 US$98,590
2024-10-01 2024-09-26 S Sale John Johnston

Non-Executive Director

Executive Director
3,000
3.82
US$11,460
3,000 3.82 US$11,460
2024-09-30 2024-09-26 PlS Planned sale Non-Executive Director
3,000 -2.1%
3.82
US$11,460
3,000 -2.1% 3.82 US$11,460
2024-09-26 2024-09-26 PrS Proposed sale

Affiliate

9,000
3.81
US$34,290
9,000 3.81 US$34,290
2024-09-06 2024-09-04 S Sale

Non-Executive Director

Executive Director
29,767
3.97
US$118,133
29,767 3.97 US$118,133
2024-09-05 2024-09-04 PlS Planned sale Non-Executive Director
29,767 -10.0%
3.97
US$118,175
29,767 -10.0% 3.97 US$118,175
2024-09-06 2024-09-03 S Sale

Non-Executive Director

Executive Director
17,922
4.10
US$73,441
17,922 4.10 US$73,441
2024-09-05 2024-09-03 PlS Planned sale Non-Executive Director
17,922 -6.2%
4.10
US$73,480
17,922 -6.2% 4.10 US$73,480
2024-09-03 2024-09-03 PrS Proposed sale

Officer

Officer
143,067
4.32
US$618,049
143,067 4.32 US$618,049
2024-08-29 2024-08-26 S Sale John Johnston

Non-Executive Director

Executive Director
3,000
4.28
US$12,841
3,000 4.28 US$12,841
2024-08-28 2024-08-26 PlS Planned sale Non-Executive Director
3,000 -2.1%
4.28
US$12,840
3,000 -2.1% 4.28 US$12,840
2024-08-05 2024-08-02 PlS Planned sale

EVP, GLOBAL SALES

Officer
17,857 -41.7%
4.36
US$77,874
17,857 -41.7% 4.36 US$77,874
2024-08-05 2024-08-01 PlS Planned sale

EVP, GLOBAL SALES

Officer
15,476 -38.2%
4.54
US$70,261
15,476 -38.2% 4.54 US$70,261
2024-07-31 2024-07-26 S Sale John Johnston

Non-Executive Director

Executive Director
3,000
4.75
US$14,239
3,000 4.75 US$14,239
2024-07-30 2024-07-26 PlS Planned sale Non-Executive Director
3,000 -2.1%
4.75
US$14,238
3,000 -2.1% 4.75 US$14,238
2024-07-10 2024-07-09 PlS Planned sale

EVP, GLOBAL SALES

Officer
13,531 -35.1%
4.03
US$54,584
13,531 -35.1% 4.03 US$54,584
2024-07-10 2024-07-08 PlS Planned sale

EVP, GLOBAL SALES

Officer
19,802 -44.2%
4.03
US$79,782
19,802 -44.2% 4.03 US$79,782
2024-07-02 2024-06-27 S Sale John Johnston

Non-Executive Director

Executive Director
10,000
3.99
US$39,898
10,000 3.99 US$39,898
2024-07-01 2024-06-27 PlS Planned sale Non-Executive Director
10,000 -6.6%
3.99
US$39,900
10,000 -6.6% 3.99 US$39,900
2024-06-27 2024-06-27 PrS Proposed sale

Affiliate

16,000
3.98
US$63,680
16,000 3.98 US$63,680
2024-06-24 2024-06-20 PlS Planned sale

EVP, GLOBAL SALES

Officer
33,333 -57.1%
4.09
US$136,465
33,333 -57.1% 4.09 US$136,465
2024-06-20 2024-06-20 PrS Proposed sale

Officer

Officer
133,332
4.41
US$587,994
133,332 4.41 US$587,994
2024-06-11 2024-06-10 B Purchase

President, CEO and Director

Executive Director
70,443
4.90
US$345,248
70,443 4.90 US$345,248
2024-06-10 2024-06-10 B Purchase

President and CEO

Executive Director
70,443 +238.3%
4.90
US$345,241
70,443 +238.3% 4.90 US$345,241
2024-06-11 2024-06-07 B Purchase

President, CEO and Director

Executive Director
29,557
4.87
US$143,824
29,557 4.87 US$143,824
2024-06-10 2024-06-07 B Purchase

President and CEO

Executive Director
29,557 +inf%
4.87
US$143,824
29,557 +inf% 4.87 US$143,824
2024-04-02 2024-03-26 S Sale John Johnston

Non-Executive Director

Executive Director
5,000
4.41
US$22,026
5,000 4.41 US$22,026
2024-03-28 2024-03-26 PlS Planned sale Non-Executive Director
5,000 -4.0%
4.41
US$22,025
5,000 -4.0% 4.41 US$22,025
2024-02-29 2024-02-26 S Sale John Johnston

Non-Executive Director

Executive Director
5,000
4.60
US$23,002
5,000 4.60 US$23,002
2024-02-28 2024-02-26 PlS Planned sale Non-Executive Director
5,000 -4.0%
4.60
US$23,005
5,000 -4.0% 4.60 US$23,005
2024-02-26 2024-02-26 PrS Proposed sale

Affiliate

10,000
4.59
US$45,900
10,000 4.59 US$45,900
2024-01-31 2024-01-26 S Sale John Johnston

Non-Executive Director

Executive Director
5,000
5.12
US$25,582
5,000 5.12 US$25,582
2024-01-30 2024-01-26 PlS Planned sale Non-Executive Director
5,000 -4.0%
5.12
US$25,585
5,000 -4.0% 5.12 US$25,585
2023-12-29 2023-12-26 S Sale John Johnston

Non-Executive Director

Executive Director
5,000
4.53
US$22,663
5,000 4.53 US$22,663
2023-12-28 2023-12-26 PlS Planned sale Non-Executive Director
5,000 -4.0%
4.53
US$22,650
5,000 -4.0% 4.53 US$22,650
2023-12-07 2023-12-05 S Sale

Chief Executive Officer

Officer
99,442
5.17
US$514,483
99,442 5.17 US$514,483
2023-12-06 2023-12-05 PlS Planned sale

President and CEO

Executive Director
99,442 -23.0%
5.17
US$514,115
99,442 -23.0% 5.17 US$514,115
2023-12-07 2023-12-04 S Sale

Chief Executive Officer

Officer
25,008
5.01
US$125,178
25,008 5.01 US$125,178
2023-12-06 2023-12-04 PlS Planned sale

President and CEO

Executive Director
25,008 -7.0%
5.01
US$125,290
25,008 -7.0% 5.01 US$125,290
2023-12-04 2023-12-01 S Sale

Chief Executive Officer

Officer
20,200
5.00
US$101,000
20,200 5.00 US$101,000
2023-12-01 2023-12-01 PlS Planned sale

President and CEO

Executive Director
20,200 -5.7%
5.00
US$101,000
20,200 -5.7% 5.00 US$101,000
2023-12-04 2023-11-29 S Sale

Chief Executive Officer

Officer
5,350
5.00
US$26,763
5,350 5.00 US$26,763
2023-12-01 2023-11-29 PlS Planned sale

President and CEO

Executive Director
5,350 -1.6%
5.00
US$26,750
5,350 -1.6% 5.00 US$26,750
2023-11-29 2023-11-29 PrS Proposed sale

Officer

Officer
150,000
4.68
US$702,000
150,000 4.68 US$702,000
2023-11-30 2023-11-27 S Sale John Johnston

Non-Executive Director

Executive Director
5,000
4.59
US$22,959
5,000 4.59 US$22,959
2023-11-29 2023-11-27 PlS Planned sale Non-Executive Director
5,000 -4.0%
4.59
US$22,950
5,000 -4.0% 4.59 US$22,950
2023-11-16 2023-11-14 PlS Planned sale Non-Executive Director
10,000 -7.7%
3.71
US$37,100
10,000 -7.7% 3.71 US$37,100
2023-11-14 2023-11-14 PrS Proposed sale

Affiliate

20,000
3.71
US$74,200
20,000 3.71 US$74,200
2023-09-01 2023-08-30 S Sale John Johnston

Non-Executive Director

Executive Director
2,841
3.70
US$10,523
2,841 3.70 US$10,523
2023-08-30 2023-08-30 PlS Planned sale Non-Executive Director
2,841 -2.3%
3.70
US$10,512
2,841 -2.3% 3.70 US$10,512