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

Ouster, Inc.

OUST · Nasdaq · CIK 0001816581 · Technology · Electronic Components

INSIDER SIGNAL

No active buy signal

1 qualifying P purchase group
in the current 180-day scoring window

70 Form 4 transaction lines observed in the same window
48 sales · 20 option, withholding, award, gift or other lines

Last qualifying purchase2026-05-11 · Boulet Virginia · $41.8K

WHY NO ACTIVE SIGNAL?

Purchase activityPresent
Recent buying1 qualifying line group(s)
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
Frichtl MarkChief Technology Officer
○▼○▼○▼○▼○▼▼▼○○▼
SKAGGS STEPHEN ADirector
▼○▼▼
Heystee SusanDirector
▼○○○
SPENCER DARIENChief Operating Officer
▼▼▼▼
Jacquemet CyrilleChief Revenue Officer
▼▼▼▼
Gianella Kenneth P.Chief Financial Officer
▼▼▼
● Purchase▼ Sale○ Other

Showing the six most active owners; 7 additional owner(s) remain in Form 4 evidence.

Purchase breadth & concentration

QUALIFYING BUYERS1
PURCHASE CONCENTRATION100%Largest buyer: Boulet Virginia · $41.8K
CLUSTER BUYING · 15D1 insiderPeak activity: 2026-05-11–2026-05-11

Roles in the peak window: Director. Concentration uses priced qualifying P lines only and does not change the saved score.

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: 2026-05-11 · Boulet Virginia.

Recent Form 4 activity

3Purchases
68Sales
34Other Form 4 lines
64SEC filings · 365 days
BUYING2 qualifying P line(s) · 180 days
SELLING48 sale line(s) · context only
OTHER20 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
7,350,816
Previous report
6,781,618
Avg daily volume
2,421,497
Days to cover
3.0

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
2026-05-11Boulet VirginiaPurchase (P)Common Stock1,658USD 25.23USD 41,831SEC filing ↗
2026-03-06Boulet VirginiaPurchase (P)Common Stock6,500USD 20.95USD 136,175SEC filing ↗
2024-12-12Pacala Charles AngusPurchase (P)Common Stock50,954USD 9.79USD 498,938SEC filing ↗
2024-12-12Frichtl MarkPurchase (P)Common Stock5,045USD 9.78USD 49,340SEC filing ↗
2024-08-16MADDOCK ERNEST EPurchase (P)Common Stock8,000USD 7.79USD 62,320SEC filing ↗
2024-08-16BOULET VIRGINIAPurchase (P)Common Stock10,000USD 7.82USD 78,200SEC filing ↗
2024-06-13BOULET VIRGINIAPurchase (P)Common Stock10,000USD 10.30USD 103,000SEC filing ↗
2024-06-13BOULET VIRGINIAPurchase (P)Common Stock10,000USD 10.30USD 103,000SEC filing ↗
2024-05-15Pacala Charles AngusPurchase (P)Common Stock16,000USD 12.33USD 197,280SEC filing ↗
2024-05-15Frichtl MarkPurchase (P)Common Stock8,000USD 12.34USD 98,720SEC filing ↗
2024-05-15BOULET VIRGINIAPurchase (P)Common Stock10,000USD 12.20USD 122,000SEC filing ↗
2023-11-30BOULET VIRGINIAPurchase (P)Common Stock10,000USD 5.24USD 52,400SEC filing ↗
2023-11-15MADDOCK ERNEST EPurchase (P)Common Stock7,000USD 5.29USD 37,030SEC filing ↗
2023-09-15BOULET VIRGINIAPurchase (P)Common Stock10,000USD 4.68USD 46,800SEC filing ↗
2023-08-25BOULET VIRGINIAPurchase (P)Common Stock40,000USD 5.75USD 230,000SEC filing ↗

Form 4 evidence

105 transaction lines in the latest 365-day window; 377 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-05Heystee SusanAward / grant (A)Common Stock779USD 44.12USD 34,369SEC filing ↗
2026-09-14SPENCER DARIENSale (S)Common Stock12,808USD 33.96USD 434,960SEC filing ↗
2026-09-14Pacala Charles AngusSale (S)Common Stock30,385USD 33.96USD 1,031,875SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-05Heystee SusanAward / grant (A)Common Stock779USD 44.12USD 34,369SEC filing ↗
2026-09-14SPENCER DARIENSale (S)Common Stock12,808USD 33.96USD 434,960SEC filing ↗
2026-09-14Pacala Charles AngusSale (S)Common Stock30,385USD 33.96USD 1,031,875SEC filing ↗
2026-09-14Jacquemet CyrilleSale (S)Common Stock8,896USD 33.96USD 302,108SEC filing ↗
2026-09-14Gianella Kenneth P.Sale (S)Common Stock15,686USD 33.96USD 532,697SEC filing ↗
2026-09-14Frichtl MarkSale (S)Common Stock18,778USD 33.96USD 637,701SEC filing ↗
2026-09-14Chung MeganSale (S)Common Stock11,484USD 33.96USD 389,997SEC filing ↗
2026-09-09Chung MeganGift (G)Common Stock2,084USD 0.00USD 0SEC filing ↗
2026-09-02Frichtl MarkGift (G)Common Stock38,745USD 0.00USD 0SEC filing ↗
2026-08-26Frichtl MarkOption exercise / conversion (M)Common Stock100,000USD 14.22USD 1,422,000SEC filing ↗
2026-08-18Gianella Kenneth P.Sale (S)Common Stock40,000USD 45.33USD 1,813,218SEC filing ↗
2026-08-06SKAGGS STEPHEN ASale (S)Common Stock3,614USD 45.18USD 163,281SEC filing ↗
2026-08-05SKAGGS STEPHEN ASale (S)Common Stock1,386USD 46.48USD 64,421SEC filing ↗
2026-08-04SPENCER DARIENSale (S)Common Stock30,000USD 45.00USD 1,350,000SEC filing ↗
2026-07-06Heystee SusanAward / grant (A)Common Stock660USD 49.83USD 32,888SEC filing ↗
2026-06-22Tewksbury Ted L IIISale (S)Common Stock1,695USD 47.00USD 79,665SEC filing ↗
2026-06-17Tewksbury Ted L IIIAward / grant (A)Common Stock4,725USD 0.00USD 0SEC filing ↗
2026-06-17SKAGGS STEPHEN AAward / grant (A)Common Stock4,725USD 0.00USD 0SEC filing ↗
2026-06-17MADDOCK ERNEST EAward / grant (A)Common Stock4,725USD 0.00USD 0SEC filing ↗
2026-06-17Heystee SusanAward / grant (A)Common Stock4,725USD 0.00USD 0SEC filing ↗
2026-06-17Eyler PhillipAward / grant (A)Common Stock4,725USD 0.00USD 0SEC filing ↗
2026-06-17Correia ChristinaAward / grant (A)Common Stock4,725USD 0.00USD 0SEC filing ↗
2026-06-12SPENCER DARIENSale (S)Common Stock12,559USD 38.82USD 487,540SEC filing ↗
2026-06-12Pacala Charles AngusSale (S)Common Stock29,797USD 38.82USD 1,156,720SEC filing ↗
2026-06-12Jacquemet CyrilleSale (S)Common Stock8,723USD 38.82USD 338,627SEC filing ↗
2026-06-12Gianella Kenneth P.Sale (S)Common Stock54,337USD 38.82USD 2,109,362SEC filing ↗
2026-06-12Frichtl MarkSale (S)Common Stock18,414USD 38.82USD 714,831SEC filing ↗
2026-06-12Chung MeganSale (S)Common Stock11,261USD 38.82USD 437,152SEC filing ↗
2026-05-26SPENCER DARIENSale (S)Common Stock30,000USD 45.00USD 1,350,022SEC filing ↗
2026-05-26Jacquemet CyrilleSale (S)Common Stock9,433USD 40.00USD 377,320SEC 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 · —
TickerOUST
CIK0001816581
SectorTechnology
IndustryElectronic Components Yahoo Finance
SEC SIC3569 General Industrial Machinery & Equipment, NEC
ExchangeNasdaq

Data coverage

Local Form 4 history377 transaction lines from 2020-11-25 to 2026-10-05
27 P purchase lines · 163 S sale lines · 187 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.