Latest filingSep 23, 2026Most recent Form 4
QSI
Quantum-Si Inc
NasdaqIndustrialsMeasuring & Controlling Devices, NEC
Insider activity for last month from 08/24 to 09/24. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$00 buys
Total selling$39.4k6 sells
Net open-market-$39.4k3 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period6transactions
- S · Open-market sells · dominant6 · 100%
Activity by reported role
A joint filing can contribute to multiple roles10transactions
- Chief executive officer · dominant2 · 20%
- Chief financial officer2 · 20%
- GC2 · 20%
- PRES2 · 20%
- SECY2 · 20%
Distinct insiders active
Reporting-owner CIKs by month · peak Sep 2026 (3)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeLaPointe ChristianClass A Common Stock · Direct
1,167,913Sep 22, 2026
Keyes Jeffry R.Class A Common Stock · Direct
1,716,684Sep 22, 2026
Hawkins Jeffrey AlanClass A Common Stock · Direct
3,639,950Sep 22, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 24 → Sep 24
LessMore
Top insiders
By absolute net value across the selected period- HA-$22.6k
- LC-$11.0k
- KR-$5.8k
Filing detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
No filing-only signal badges matched this period.
QSI transaction history
Filters apply within this company and selected period by defaultLatest insider transactions
Form 4 filings from last month. Click any column to sort; click it again to flip the order.
| ID | Ticker | Insider | Role | Type | Shares | Value | Code | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|
| #228734 | QSI | Hawkins Jeffrey Alan | PRESCEO | sale | 9.70k | -$738k | S | 09/23 | 09/22 |
| #228733 | QSI | Hawkins Jeffrey Alan | PRESCEO | sale | 20.1k | -$1.52M | S | 09/23 | 09/21 |
| #228728 | QSI | Keyes Jeffry R. | CFO | sale | 2.49k | -$189k | S | 09/23 | 09/22 |
| #228727 | QSI | Keyes Jeffry R. | CFO | sale | 5.17k | -$390k | S | 09/23 | 09/21 |
| #228720 | QSI | LaPointe Christian | GCSECY | sale | 4.72k | -$359k | S | 09/23 | 09/22 |
| #228719 | QSI | LaPointe Christian | GCSECY | sale | 9.79k | -$740k | S | 09/23 | 09/21 |
Quantum-Si Inc Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at Quantum-Si Inc?
Hawkins Jeffrey Alan, Keyes Jeffry R., LaPointe Christian.
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
Hawkins Jeffrey Alan reported a sale on Sep 22, 2026 valued at $7.38k. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $39,411.16. Sales can occur for many non-investment reasons.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.