← United States · Coverage record
US · SEC FORM 4
MAXCYTE, INC.
MXCT · Nasdaq · CIK 0001287098 · Healthcare · Medical Devices
INSIDER SIGNAL
0 qualifying P purchase groups
in the current 180-day scoring window
8 Form 4 transaction lines observed in the same window
0 sales · 8 option, withholding, award, gift or other lines
WHY NO ACTIVE SIGNAL?
Score anatomy
No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.
Why is there no score?
- No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
- Sales and other Form 4 activity remain visible as context and do not create a negative score.
Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.
Insider activity timeline
Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.
Showing the six most active owners; 2 additional owner(s) remain in Form 4 evidence.
Purchase breadth, concentration & cluster buying
These modules activate when qualifying purchases enter the 180-day research window.
SIGNAL HISTORY
Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2025-08-13 · Swirsky Douglas J.
Recent Form 4 activity
P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.
Market context
Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.
Short interest
Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.
- Shares short
- 1,089,972
- Previous report
- 1,170,407
- Avg daily volume
- 346,888
- Days to cover
- 3.1
FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.
Historical equity purchases
Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.
| Transaction date | Reporting owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2025-08-13 | Swirsky Douglas J | Purchase (P) | Common Stock | 50,000 | USD 1.29 | USD 64,500 | SEC filing ↗ |
| 2025-08-13 | Masoud Maher | Purchase (P) | Common Stock | 75,000 | USD 1.37 | USD 102,750 | SEC filing ↗ |
| 2025-08-13 | Erck Stanley C | Purchase (P) | Common Stock | 100,000 | USD 1.37 | USD 137,000 | SEC filing ↗ |
| 2025-08-13 | DOUGLAS RICHARD | Purchase (P) | Common Stock | 80,000 | USD 1.39 | USD 111,200 | SEC filing ↗ |
| 2025-08-13 | Brooke William W | Purchase (P) | Common Stock | 50,000 | USD 1.29 | USD 64,500 | SEC filing ↗ |
| 2024-06-10 | Masoud Maher | Purchase (P) | Common Stock | 70,443 | USD 4.90 | USD 345,171 | SEC filing ↗ |
| 2024-06-07 | Masoud Maher | Purchase (P) | Common Stock | 29,557 | USD 4.87 | USD 143,943 | SEC filing ↗ |
| 2023-03-29 | DOUGLAS RICHARD | Purchase (P) | Common Stock | 80,000 | USD 4.32 | USD 345,600 | SEC filing ↗ |
| 2021-11-22 | DOUGLAS RICHARD | Purchase (P) | Common Stock | 20,000 | USD 11.12 | USD 222,400 | SEC filing ↗ |
| 2021-07-30 | Casdin Capital, LLC; Casdin Eli; Casdin Partners GP, LLC; Casdin Partners Master Fund, L.P. | Purchase (P) | Common Stock, par value $0.01 per share | 1,800,000 | USD 13.00 | USD 23,400,000 | SEC filing ↗ |
Form 4 evidence
11 transaction lines in the latest 365-day window; 236 in local history.
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-06-17 | Johnston John Joseph | Award / grant (A) | Common Stock | 30,421 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-17 | Hemrajani Rekha | Award / grant (A) | Common Stock | 30,421 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-17 | Erck Stanley C | Award / grant (A) | Common Stock | 30,421 | USD 0.00 | USD 0 | SEC filing ↗ |
Show recent Form 4 evidence (11 grouped rows)
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-06-17 | Johnston John Joseph | Award / grant (A) | Common Stock | 30,421 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-17 | Hemrajani Rekha | Award / grant (A) | Common Stock | 30,421 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-17 | Erck Stanley C | Award / grant (A) | Common Stock | 30,421 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-17 | DOUGLAS RICHARD | Award / grant (A) | Common Stock | 30,421 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-17 | Collins Cynthia | Award / grant (A) | Common Stock | 30,421 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-17 | Brooke William W | Award / grant (A) | Common Stock | 30,421 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-17 | BALTHROP PATRICK J | Award / grant (A) | Common Stock | 30,421 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-17 | Al-Wakeel Yasir B. | Award / grant (A) | Common Stock | 30,421 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-04-15 | Ahuja Parmeet | Award / grant (A) | Common Stock | 187,500 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-03-27 | Masoud Maher | Award / grant (A) | Common Stock | 300,000 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-03-17 | Swirsky Douglas J | Sale (S) | Common Stock | 10,142 | USD 0.82 | USD 8,316 | SEC filing ↗ |
Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.
Snapshot & identity
| Snapshot date | 2026-10-18 |
|---|---|
| Ranking version | US-v1.2 |
| Data quality | PASS ELIGIBLE · — |
| Ticker | MXCT |
| CIK | 0001287098 |
| Sector | Healthcare |
| Industry | Medical Devices Yahoo Finance |
| SEC SIC | 8731 Services-Commercial Physical & Biological Research |
| Exchange | Nasdaq |
Data coverage
| Local Form 4 history | 236 transaction lines from 2021-07-30 to 2026-06-17 10 P purchase lines · 96 S sale lines · 130 other lines |
|---|---|
| SEC company submissions | Open SEC filings ↗ |
Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.