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

Klaviyo, Inc.

KVYO · NYSE · CIK 0001835830 · Technology · Software—Application

INSIDER SIGNAL

No active buy signal

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

46 Form 4 transaction lines observed in the same window
19 sales · 27 option, withholding, award, gift or other lines

Last qualifying purchase2026-02-12 · Ceran Jennifer · $300.3K

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
Whalen AmandaChief Financial Officer
○▼○○▼▼▼○
Bialecki AndrewCo-Chief Executive Officer
○▼○▼○▼
Hallen EdDirector,TenPercentOwner
○▼▼▼○
St. Ledger SusanDirector
○▼○▼
Fernandez Gomez LucianoCo-Chief Executive Officer
○○○○
Edmond LandonChief Legal Officer
○○▼▼
● Purchase▼ Sale○ Other

Showing the six most active owners; 6 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

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2026-02-12 · Ceran Jennifer.

Recent Form 4 activity

1Purchases
86Sales
83Other Form 4 lines
73SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING19 sale line(s) · context only
OTHER27 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
21,054,082
Previous report
19,637,710
Avg daily volume
7,178,896
Days to cover
2.9

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
2026-02-12Ceran JenniferPurchase (P)Series A Common Stock16,339USD 18.38USD 300,311SEC filing ↗
2025-04-09Fagnan JeffPurchase (P)Series A Common Stock3,900USD 25.77USD 100,503SEC filing ↗
2024-11-13Fagnan JeffPurchase (P)Series A Common Stock13,515USD 37.14USD 501,947SEC filing ↗
2024-08-01Fagnan JeffPurchase (P)Series A Common Stock9,485USD 26.43USD 250,689SEC filing ↗
2024-08-01Fagnan JeffPurchase (P)Series A Common Stock9,485USD 26.43USD 250,689SEC filing ↗

Form 4 evidence

170 transaction lines in the latest 365-day window; 461 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-08Hallen EdGift (G)Series A Common Stock17,885USD 0.00USD 0SEC filing ↗
2026-10-07Hallen EdSale (S)Series A Common Stock97,482USD 17.40USD 1,696,187SEC filing ↗
2026-09-24Hallen EdSale (S)Series A Common Stock1,300USD 17.02USD 22,126SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-08Hallen EdGift (G)Series A Common Stock17,885USD 0.00USD 0SEC filing ↗
2026-10-07Hallen EdSale (S)Series A Common Stock97,482USD 17.40USD 1,696,187SEC filing ↗
2026-09-24Hallen EdSale (S)Series A Common Stock1,300USD 17.02USD 22,126SEC filing ↗
2026-09-15Smith Erica EllenAward / grant (A)Series A Common Stock1,150,684USD 0.00USD 0SEC filing ↗
2026-09-11St. Ledger SusanSale (S)Series A Common Stock2,328USD 15.93USD 37,085SEC filing ↗
2026-08-31Hallen EdSale (S)Series A Common Stock98,782USD 20.48USD 2,023,260SEC filing ↗
2026-08-31Hallen EdGift (G)Series A Common Stock17,885USD 0.00USD 0SEC filing ↗
2026-08-31Edmond LandonSale (S)Series A Common Stock8,103USD 20.44USD 165,625SEC filing ↗
2026-08-28Edmond LandonSale (S)Series A Common Stock53,473USD 20.01USD 1,069,995SEC filing ↗
2026-08-15Whalen AmandaTax withholding (F)Series A Common Stock28,950USD 18.49USD 535,286SEC filing ↗
2026-08-15Galvin CarmelTax withholding (F)Series A Common Stock30,541USD 18.49USD 564,703SEC filing ↗
2026-08-15Fernandez Gomez LucianoTax withholding (F)Series A Common Stock29,133USD 18.49USD 538,669SEC filing ↗
2026-08-15Fernandez Gomez LucianoC (C)Series A Common Stock7,001USD —USD —SEC filing ↗
2026-08-15Edmond LandonTax withholding (F)Series A Common Stock22,342USD 18.49USD 413,104SEC filing ↗
2026-08-14Whalen AmandaSale (S)Series A Common Stock14,000USD 18.47USD 258,580SEC filing ↗
2026-08-11SUMMIT INVESTORS GE IX/VC IV (UK), L.P.; SUMMIT INVESTORS GE IX/VC IV, LLC; SUMMIT PARTNERS L P; Summit Partners Co-Invest (Kiwi), LP; Summit Partners Growth Equity Fund IX-A, L.P.; Summit Partners Growth Equity Fund IX-B, L.P.Sale (S)Series A Common Stock, par value $0.001 per share5,000,000USD 17.71USD 88,550,000SEC filing ↗
2026-08-11SUMMIT INVESTORS GE IX/VC IV (UK), L.P.; SUMMIT INVESTORS GE IX/VC IV, LLC; SUMMIT PARTNERS L P; Summit Partners Co-Invest (Kiwi), LP; Summit Partners Growth Equity Fund IX-A, L.P.; Summit Partners Growth Equity Fund IX-B, L.P.C (C)Series A Common Stock, par value $0.001 per share5,000,000USD —USD —SEC filing ↗
2026-07-22Oulman RoxanneC (C)Series A Common Stock16,775USD —USD —SEC filing ↗
2026-07-16Whalen AmandaSale (S)Series A Common Stock14,000USD 17.75USD 248,500SEC filing ↗
2026-06-18Whalen AmandaSale (S)Series A Common Stock14,000USD 13.23USD 185,220SEC filing ↗
2026-06-11Oulman RoxanneC (C)Series A Common Stock8,169USD —USD —SEC filing ↗
2026-06-09Weisman TonyAward / grant (A)Series A Common Stock14,822USD 0.00USD 0SEC filing ↗
2026-06-09St. Ledger SusanAward / grant (A)Series A Common Stock14,822USD 0.00USD 0SEC filing ↗
2026-06-09Oulman RoxanneAward / grant (A)Series A Common Stock14,822USD 0.00USD 0SEC filing ↗
2026-06-09Fernandez Gomez LucianoTax withholding (F)Series A Common Stock1,746USD 14.78USD 25,806SEC filing ↗
2026-06-09Ceran JenniferAward / grant (A)Series A Common Stock14,822USD 0.00USD 0SEC filing ↗
2026-05-26Bialecki AndrewSale (S)Series A Common Stock212,529USD 14.61USD 3,105,049SEC filing ↗
2026-05-26Bialecki AndrewC (C)Series A Common Stock212,529USD —USD —SEC filing ↗
2026-05-19Bialecki AndrewSale (S)Series A Common Stock200,000USD 14.88USD 2,976,000SEC filing ↗
2026-05-19Bialecki AndrewC (C)Series A Common Stock200,000USD —USD —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 date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerKVYO
CIK0001835830
SectorTechnology
IndustrySoftware—Application Yahoo Finance
SEC SIC7372 Services-Prepackaged Software
ExchangeNYSE

Data coverage

Local Form 4 history461 transaction lines from 2023-09-22 to 2026-10-08
5 P purchase lines · 207 S sale lines · 249 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.