Who
John Joseph Johnston
Director
Company insider
Files Form 4 as: Director, MaxCyte.
In numbers
- Trades disclosed
- 84
- Buys
- 0
- Sells
- 21
- Bought
- $0
- Sold
- $389K
- Companies
- 1
- Companies where not an officer
- 1
- First trade
- 9 Aug 2021
- Last trade
- 17 Jun 2026
- Last filed
- 22 Jun 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 17 Jun 2026filed 22 Jun 2026 | MXCT MaxCyteLife-science tools | SEC FORM 4 Code A | —30,421 at $0.00 | filing |
| 17 Jun 2026filed 22 Jun 2026 | MXCT MaxCyteoption or derivative · Life-science tools | SEC FORM 4 Code A | —49,579 at $0.00 | filing |
| 17 Jun 2026filed 22 Jun 2026 | MXCT MaxCyteoption or derivative · Life-science tools | SEC FORM 4 Code A | —49,579 at $0.00 | filing |
| 17 Jun 2026filed 22 Jun 2026 | MXCT MaxCyteLife-science tools | SEC FORM 4 Code A | —30,421 at $0.00 | filing |
| 18 Jun 2025filed 23 Jun 2025 | MXCT MaxCyteoption or derivative · Life-science tools | SEC FORM 4 Code A | —50,790 at $0.00 | filing |
| 18 Jun 2025filed 23 Jun 2025 | MXCT MaxCyteLife-science tools | SEC FORM 4 Code A | —29,210 at $0.00 | filing |
| 27 Jan 2025filed 29 Jan 2025 | MXCT MaxCyteoption or derivative · Life-science tools | SEC FORM 4 Code M | —3,000 at $0.00 | filing |
| 27 Jan 2025filed 29 Jan 2025 | MXCT MaxCyteLife-science tools | SEC FORM 4 Code M | $8,7903,000 at $2.93 | filing |
| 27 Jan 2025filed 29 Jan 2025 | MXCT MaxCyteLife-science tools | SEC FORM 4 Sold | $14K3,000 at $4.65 | filing |
| 26 Dec 2024filed 30 Dec 2024 | MXCT MaxCyteoption or derivative · Life-science tools | SEC FORM 4 Code M | —3,000 at $0.00 | filing |
| 26 Dec 2024filed 30 Dec 2024 | MXCT MaxCyteLife-science tools | SEC FORM 4 Code M | $8,7903,000 at $2.93 | filing |
| 26 Dec 2024filed 30 Dec 2024 | MXCT MaxCyteLife-science tools | SEC FORM 4 Sold | $12K3,000 at $4.01 | filing |
| 9 Dec 2024filed 10 Dec 2024 | MXCT MaxCyteoption or derivative · Life-science tools | SEC FORM 4 Code M | —891 at $0.00 | filing |
| 9 Dec 2024filed 10 Dec 2024 | MXCT MaxCyteoption or derivative · Life-science tools | SEC FORM 4 Code M | —1,121 at $0.00 | filing |
| 9 Dec 2024filed 10 Dec 2024 | MXCT MaxCyteoption or derivative · Life-science tools | SEC FORM 4 Code M | —483 at $0.00 | filing |
| 9 Dec 2024filed 10 Dec 2024 | MXCT MaxCyteLife-science tools | SEC FORM 4 Code M | $2,611891 at $2.93 | filing |
| 9 Dec 2024filed 10 Dec 2024 | MXCT MaxCyteLife-science tools | SEC FORM 4 Code M | $1,8381,121 at $1.64 | filing |
| 9 Dec 2024filed 10 Dec 2024 | MXCT MaxCyteLife-science tools | SEC FORM 4 Code M | $1,415483 at $2.93 | filing |
| 9 Dec 2024filed 10 Dec 2024 | MXCT MaxCyteLife-science tools | SEC FORM 4 Sold | $9,4562,495 at $3.79 | filing |
| 6 Dec 2024filed 10 Dec 2024 | MXCT MaxCyteoption or derivative · Life-science tools | SEC FORM 4 Code M | —505 at $0.00 | filing |
News
MaxCyte Sees Preliminary Q3 Core Revenue Of About $8.1 Mln, Raises FY26 Guidance; Shares UpMXCT · rttnews.com · 14 Oct 2026MaxCyte Reports Preliminary Third Quarter 2026 Revenue and Raises Full Year 2026 Revenue GuidanceMXCT · manilatimes.net · 14 Oct 2026
0 headlines in the last 90 days name John Joseph Johnston; 2 articles from the last 14 days about the 1 company they traded most, at most three about any one of them.