Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

Quantum-Si Inc

QSI · Nasdaq · CIK 0001816431 · Healthcare · Medical Devices

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

16 Form 4 transaction lines observed in the same window
16 sales · 0 option, withholding, award, gift or other lines

Last qualifying purchase2026-03-05 · Kummeth Charles R. · $460.0K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesHigh
Buy signal statusInactive
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.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

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.

AprMayJunJulAugSepOct
Keyes Jeffry R.Chief Financial Officer
▼▼▼▼▼
Hawkins Jeffrey AlanPresident & CEO
▼▼▼▼▼
LaPointe ChristianGC & Corp. Secretary
▼▼▼▼
Vieceli John S.Chief Product Officer
▼▼
● Purchase▼ Sale○ Other

—

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2026-03-05 · Kummeth Charles R..

Recent Form 4 activity

2Purchases
30Sales
4Other Form 4 lines
23SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING16 sale line(s) · context only
OTHER0 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

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
11,830,534
Previous report
13,046,142
Avg daily volume
4,804,383
Days to cover
2.5

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 dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2026-03-05Kummeth Charles R.Purchase (P)Class A Common Stock500,000USD 0.92USD 460,000SEC filing ↗
2026-03-05Dowdy PaulaPurchase (P)Class A Common Stock109,890USD 0.95USD 104,396SEC filing ↗
2024-08-12Kummeth Charles R.Purchase (P)Class A Common Stock31,100USD 0.89USD 27,679SEC filing ↗
2024-08-09LaPointe ChristianPurchase (P)Class A Common Stock25,000USD 0.86USD 21,500SEC filing ↗
2024-08-09Kummeth Charles R.Purchase (P)Class A Common Stock138,900USD 0.87USD 120,843SEC filing ↗
2024-08-09Keyes Jeffry R.Purchase (P)Class A Common Stock50,000USD 0.87USD 43,500SEC filing ↗
2024-08-09Hawkins Jeffrey AlanPurchase (P)Class A Common Stock25,000USD 0.85USD 21,250SEC filing ↗
2024-03-15LaPointe ChristianPurchase (P)Class A Common Stock10,000USD 1.74USD 17,400SEC filing ↗
2024-03-14Hawkins Jeffrey AlanPurchase (P)Class A Common Stock25,000USD 1.76USD 44,000SEC filing ↗
2024-03-05Keyes Jeffry R.Purchase (P)Class A Common Stock50,000USD 1.61USD 80,500SEC filing ↗
2023-03-15LaPointe ChristianPurchase (P)Class A Common Stock20,000USD 1.77USD 35,400SEC filing ↗
2022-08-17LaPointe ChristianPurchase (P)Class A Common Stock20,000USD 3.93USD 78,600SEC filing ↗
2022-06-14ROTHBERG JONATHAN MPurchase (P)Class A Common Stock25,561USD 3.10USD 79,239SEC filing ↗

Form 4 evidence

36 transaction lines in the latest 365-day window; 131 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-22LaPointe ChristianSale (S)Class A Common Stock4,721USD 0.76USD 3,588SEC filing ↗
2026-09-22Keyes Jeffry R.Sale (S)Class A Common Stock2,493USD 0.76USD 1,895SEC filing ↗
2026-09-22Hawkins Jeffrey AlanSale (S)Class A Common Stock9,709USD 0.76USD 7,379SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-09-22LaPointe ChristianSale (S)Class A Common Stock4,721USD 0.76USD 3,588SEC filing ↗
2026-09-22Keyes Jeffry R.Sale (S)Class A Common Stock2,493USD 0.76USD 1,895SEC filing ↗
2026-09-22Hawkins Jeffrey AlanSale (S)Class A Common Stock9,709USD 0.76USD 7,379SEC filing ↗
2026-09-21LaPointe ChristianSale (S)Class A Common Stock9,795USD 0.76USD 7,444SEC filing ↗
2026-09-21Keyes Jeffry R.Sale (S)Class A Common Stock5,172USD 0.76USD 3,931SEC filing ↗
2026-09-21Hawkins Jeffrey AlanSale (S)Class A Common Stock20,143USD 0.76USD 15,309SEC filing ↗
2026-06-23Vieceli John S.Sale (S)Class A Common Stock15,112USD 0.90USD 13,601SEC filing ↗
2026-06-23LaPointe ChristianSale (S)Class A Common Stock7,794USD 0.90USD 7,015SEC filing ↗
2026-06-23Keyes Jeffry R.Sale (S)Class A Common Stock4,117USD 0.90USD 3,705SEC filing ↗
2026-06-23Hawkins Jeffrey AlanSale (S)Class A Common Stock11,311USD 0.90USD 10,180SEC filing ↗
2026-06-22Vieceli John S.Sale (S)Class A Common Stock15,111USD 0.96USD 14,507SEC filing ↗
2026-06-22LaPointe ChristianSale (S)Class A Common Stock7,794USD 0.96USD 7,482SEC filing ↗
2026-06-22Keyes Jeffry R.Sale (S)Class A Common Stock4,116USD 0.96USD 3,951SEC filing ↗
2026-06-22Hawkins Jeffrey AlanSale (S)Class A Common Stock11,310USD 0.96USD 10,858SEC filing ↗
2026-04-21Keyes Jeffry R.Sale (S)Class A Common Stock37,381USD 1.00USD 37,381SEC filing ↗
2026-04-21Hawkins Jeffrey AlanSale (S)Class A Common Stock83,712USD 1.00USD 83,712SEC filing ↗
2026-04-20Keyes Jeffry R.Sale (S)Class A Common Stock37,382USD 1.01USD 37,756SEC filing ↗
2026-04-20Hawkins Jeffrey AlanSale (S)Class A Common Stock83,712USD 1.01USD 84,549SEC filing ↗
2026-03-23Vieceli John S.Sale (S)Class A Common Stock11,239USD 0.83USD 9,328SEC filing ↗
2026-03-23LaPointe ChristianSale (S)Class A Common Stock6,110USD 0.83USD 5,071SEC filing ↗
2026-03-23Keyes Jeffry R.Sale (S)Class A Common Stock4,422USD 0.83USD 3,670SEC filing ↗
2026-03-23Hawkins Jeffrey AlanSale (S)Class A Common Stock12,149USD 0.83USD 10,084SEC filing ↗
2026-03-20Vieceli John S.Sale (S)Class A Common Stock10,758USD 0.85USD 9,144SEC filing ↗
2026-03-20LaPointe ChristianSale (S)Class A Common Stock5,849USD 0.85USD 4,972SEC filing ↗
2026-03-20Keyes Jeffry R.Sale (S)Class A Common Stock4,233USD 0.85USD 3,598SEC filing ↗
2026-03-20Hawkins Jeffrey AlanSale (S)Class A Common Stock11,628USD 0.85USD 9,884SEC filing ↗
2026-03-12Vieceli John S.Award / grant (A)Class A Common Stock391,681USD 0.00USD 0SEC filing ↗
2026-03-12LaPointe ChristianAward / grant (A)Class A Common Stock261,121USD 0.00USD 0SEC filing ↗
2026-03-12Keyes Jeffry R.Award / grant (A)Class A Common Stock652,803USD 0.00USD 0SEC filing ↗
2026-03-12Hawkins Jeffrey AlanAward / grant (A)Class A Common Stock1,305,606USD 0.00USD 0SEC 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 date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerQSI
CIK0001816431
SectorHealthcare
IndustryMedical Devices Yahoo Finance
SEC SIC3829 Measuring & Controlling Devices, NEC
ExchangeNasdaq

Data coverage

Local Form 4 history131 transaction lines from 2021-06-10 to 2026-09-22
13 P purchase lines · 66 S sale lines · 52 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.