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Klaviyo, Inc. insider trading

In twelve months insiders at Klaviyo bought $300K and sold $193M on the open market; 86 of the 87 sales were under plans set months before.

Bought on the open market$300K1 purchase
Sold on the open market$193M87 sales
Sales set in advance86 of 87under Rule 10b5-1 plans
Pay taken in stockNone
New to this? How to read this page
  1. Insiders are the people who run the company: officers, directors and owners of 10% or more. They must report a trade on Form 4 within two business days.
  2. A purchase on the open market is the strongest sign: the insider spent their own money.
  3. A sale under a trading plan (Rule 10b5-1) says little: its dates were fixed months before. Sales outside a plan say more, but insiders sell for many reasons, such as taxes or a house.
  4. Grants, option exercises and shares held back for tax are left out.
  5. What is a Form 4? · Form 4 codes

What kind of trades

1 purchase worth $300K against 87 sales worth $193M; 86 of the sales were under plans set months before.

Purchasebought with their own money
Pay in stock, own choiceowed cash, chose shares
Sale outside a planthe insider picked the day
Sale under a plandates fixed months before
Says littlecompany plans, board pay, cash units
Bought
1 open market
Sold
186 under a plan

Every Form 4 line of the last twelve months, counted by kind. The grades come from the filing itself: whether the insider paid cash, whether a plan set the date, whether pay was taken in stock by choice.

Insider trades on the share price

last twelve months

59 marks over twelve months, each in its grade: solid for the stronger signs, hollow or grey for the ones that say little.

PurchasePay in stock, own choiceSale outside a planSale under a planSays little

The blue line is the daily close over twelve months. Each mark is one insider's trades on one day, on that day's price, sized by dollar value. Solid marks are the stronger signs; hollow and grey marks say little. Hover or tap a mark for who, how much and why.

Trades worth a closer look

A purchase stands out when two or more of these hold: a senior insider, several insiders buying within 90 days, a fall of 10% or more in the three months before, or over $1 million. A sale outside a plan is judged the same way. These are the Feed's rules.

Who traded

dollars, twelve months

9 insiders traded. The most: Bialecki Andrew, sale under a plan $88.6M.

One row per insider, sold to the left and bought to the right, split by grade: the paler part of a bar is the part that says little.

How it compares

every company on the site

Open-market sales, twelve months

Open-market purchases, twelve months

    The bar ranks every company on the site from the lowest on the left to the highest on the right, in three equal thirds; the small figures under it are the values where each third starts, and the black tick is the middle company. The orange dot is this company; the grey ticks are the other companies in its industry (hover or tap for names). A hatched block is companies tied at none.

    Every Form 4 line

    Purchase: bought on the open market with their own moneyTook pay in stock, own choice: owed cash, chose shares instead; a softer signSale: sold on the open market, not under a plan set in advanceSale, trading plan: under a Rule 10b5-1 plan set up months before, so the date was fixed in advanceGrey lines: plan purchases, pay in stock taken by the whole board or under a company plan, and units paid in cash; they say little about the insider's own view
    TradedInsiderRoleTypeSharesPriceValueFiling
    7 October 2026Hallen Ed, by Hodgkins TrustDirectorSaletrading plan set in advance · Form 144 notice 7 October 202638,667$17.40$672,806Form 4
    7 October 2026Hallen Ed, by Hodgkins LLCDirectorSaletrading plan set in advance · Form 144 notice 7 October 202658,815$17.40$1.0 millionForm 4
    24 September 2026Hallen Ed, by Hodgkins TrustDirectorSaletrading plan set in advance · Form 144 notice 24 September 2026500$17.02$8,510Form 4
    24 September 2026Hallen Ed, by Hodgkins LLCDirectorSaletrading plan set in advance · Form 144 notice 24 September 2026800$17.02$13,616Form 4
    11 September 2026St. Ledger SusanDirectorSaletrading plan set in advance · Form 144 notice 11 September 20262,328$15.93$37,085Form 4
    31 August 2026Hallen Ed, by Hodgkins TrustDirectorSaletrading plan set in advance · Form 144 notice 31 August 202639,167$20.47$801,748Form 4
    31 August 2026Hallen Ed, by Hodgkins LLCDirectorSaletrading plan set in advance · Form 144 notice 31 August 202659,615$20.49$1.2 millionForm 4
    31 August 2026Edmond LandonChief Legal OfficerSaletrading plan set in advance · Form 144 notice 31 August 20268,103$20.44$165,625Form 4
    28 August 2026Edmond LandonChief Legal OfficerSaletrading plan set in advance · Form 144 notice 28 August 202653,473$20.01$1.1 millionForm 4
    14 August 2026Whalen AmandaChief Financial OfficerSaletrading plan set in advance · Form 144 notice 18 June 202614,000$18.47$258,580Form 4
    11 August 2026Summit Partners L P, see footnotes10% ownerSaleafter a 27% rise over three months · 49% below its one-year high · Form 144 notice 11 August 20265,000,000$17.71$88.5 millionForm 4
    16 July 2026Whalen AmandaChief Financial OfficerSaletrading plan set in advance · Form 144 notice 18 June 202614,000$17.75$248,500Form 4
    18 June 2026Whalen AmandaChief Financial OfficerSaletrading plan set in advance · Form 144 notice 18 June 202614,000$13.23$185,220Form 4
    26 May 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 26 May 2026212,529$14.61$3.1 millionForm 4
    19 May 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 7 April 2026200,000$14.88$3.0 millionForm 4
    18 May 2026St. Ledger SusanDirectorSaletrading plan set in advance · Form 144 notice 18 May 20269,334$14.27$133,196Form 4
    14 May 2026Whalen AmandaChief Financial OfficerSaletrading plan set in advance · Form 144 notice 16 April 202614,000$14.26$199,640Form 4
    12 May 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 7 April 202658,684$14.97$878,499Form 4
    12 May 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 7 April 2026141,316$14.46$2.0 millionForm 4
    20 April 2026Edmond LandonChief Legal OfficerSaletrading plan set in advance · Form 144 notice 20 April 20269,623$20.00$192,460Form 4
    16 April 2026Whalen AmandaChief Financial OfficerSaletrading plan set in advance · Form 144 notice 16 April 202614,000$18.54$259,560Form 4
    14 April 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 7 April 2026109,142$17.39$1.9 millionForm 4
    14 April 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 7 April 202690,858$16.94$1.5 millionForm 4
    7 April 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 7 April 2026200,000$18.63$3.7 millionForm 4
    31 March 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 24 February 2026200,000$19.42$3.9 millionForm 4
    24 March 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 24 February 2026200,000$18.17$3.6 millionForm 4
    17 March 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 24 February 202697,379$19.60$1.9 millionForm 4
    17 March 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 24 February 2026102,621$19.15$2.0 millionForm 4
    12 March 2026Edmond LandonChief Legal OfficerSaletrading plan set in advance · Form 144 notice 12 March 202614,366$20.15$289,475Form 4
    12 March 2026Whalen AmandaChief Financial OfficerSaletrading plan set in advance · Form 144 notice 18 December 20258,923$19.72$175,962Form 4
    12 March 2026Whalen AmandaChief Financial OfficerSaletrading plan set in advance · Form 144 notice 18 December 20255,077$19.34$98,189Form 4
    10 March 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 24 February 2026206,127$19.96$4.1 millionForm 4
    10 March 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 24 February 2026700$19.34$13,538Form 4
    5 March 2026Edmond LandonChief Legal OfficerSaletrading plan set in advance · Form 144 notice 18 December 202515,093$20.16$304,275Form 4
    3 March 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 24 February 2026154,022$18.86$2.9 millionForm 4
    3 March 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 24 February 202645,978$17.90$823,006Form 4
    24 February 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 24 February 2026160,356$16.86$2.7 millionForm 4
    24 February 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 24 February 202639,644$16.38$649,369Form 4
    13 February 2026Whalen AmandaChief Financial OfficerSaletrading plan set in advance · Form 144 notice 18 December 20259,281$19.01$176,432Form 4
    13 February 2026Whalen AmandaChief Financial OfficerSaletrading plan set in advance · Form 144 notice 18 December 20254,719$18.63$87,915Form 4
    12 February 2026Ceran JenniferDirectorPurchaseafter a 35% fall over three months · 61% below its one-year high16,339$18.38$300,311Form 4
    27 January 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 2 December 2025150,689$25.34$3.8 millionForm 4
    27 January 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 2 December 20254,530$24.94$112,978Form 4
    20 January 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 2 December 2025167,130$24.16$4.0 millionForm 4
    20 January 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 2 December 2025796$23.29$18,539Form 4
    15 January 2026Whalen AmandaChief Financial OfficerSaletrading plan set in advance · Form 144 notice 18 December 20257,826$26.08$204,102Form 4
    15 January 2026Whalen AmandaChief Financial OfficerSaletrading plan set in advance · Form 144 notice 18 December 20256,174$25.52$157,560Form 4
    15 January 2026Edmond LandonChief Legal OfficerSaletrading plan set in advance · Form 144 notice 18 December 20255,601$26.08$146,074Form 4
    15 January 2026Edmond LandonChief Legal OfficerSaletrading plan set in advance · Form 144 notice 18 December 20254,399$25.52$112,262Form 4
    13 January 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 2 December 202550,319$27.62$1.4 millionForm 4
    13 January 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 2 December 202590,327$27.29$2.5 millionForm 4
    7 January 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 2 December 202516,649$30.01$499,636Form 4
    6 January 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 2 December 2025135,122$28.92$3.9 millionForm 4
    6 January 2026Bialecki AndrewCo-Chief Executive OfficerSaletrading plan set in advance · Form 144 notice 2 December 20252,382$28.52$67,935Form 4
    22 December 2025Bialecki AndrewChief Executive OfficerSaletrading plan set in advance · Form 144 notice 2 December 202593,066$33.05$3.1 millionForm 4
    22 December 2025Bialecki AndrewChief Executive OfficerSaletrading plan set in advance · Form 144 notice 2 December 20256,934$31.94$221,472Form 4
    18 December 2025Edmond LandonChief Legal OfficerSaletrading plan set in advance · Form 144 notice 18 December 202513,718$31.41$430,882Form 4
    18 December 2025Edmond LandonChief Legal OfficerSaletrading plan set in advance · Form 144 notice 18 December 2025472$30.55$14,420Form 4
    18 December 2025Whalen AmandaChief Financial OfficerSaletrading plan set in advance · Form 144 notice 18 December 202513,540$31.41$425,291Form 4
    18 December 2025Whalen AmandaChief Financial OfficerSaletrading plan set in advance · Form 144 notice 18 December 2025460$30.59$14,071Form 4
    17 December 2025Hallen Ed, by Hodgkins TrustDirectorSaletrading plan set in advance · Form 144 notice 17 December 202534,878$30.35$1.1 millionForm 4
    17 December 2025Hallen Ed, by Hodgkins LLCDirectorSaletrading plan set in advance · Form 144 notice 17 December 202582,672$30.37$2.5 millionForm 4
    17 December 2025Bialecki AndrewChief Executive OfficerSaletrading plan set in advance · Form 144 notice 2 December 2025100,000$30.40$3.0 millionForm 4
    16 December 2025Bialecki AndrewChief Executive OfficerSaletrading plan set in advance · Form 144 notice 2 December 2025138,648$29.04$4.0 millionForm 4
    15 December 2025Rowland Stephen EricPresidentSaletrading plan set in advance · Form 144 notice 15 December 20253,913$29.81$116,647Form 4
    15 December 2025Rowland Stephen EricPresidentSaletrading plan set in advance · Form 144 notice 15 December 20253,191$29.01$92,571Form 4
    15 December 2025Hallen Ed, by Hodgkins TrustDirectorSaletrading plan set in advance · Form 144 notice 15 December 2025157$30.13$4,730Form 4
    15 December 2025Hallen Ed, by Hodgkins LLCDirectorSaletrading plan set in advance · Form 144 notice 15 December 2025600$30.15$18,090Form 4
    11 December 2025Bialecki AndrewChief Executive OfficerSaletrading plan set in advance · Form 144 notice 2 December 202517,777$30.00$533,310Form 4
    10 December 2025Bialecki AndrewChief Executive OfficerSaletrading plan set in advance · Form 144 notice 2 December 202582,223$30.12$2.5 millionForm 4
    9 December 2025Bialecki AndrewChief Executive OfficerSaletrading plan set in advance · Form 144 notice 2 December 2025130,562$29.42$3.8 millionForm 4
    9 December 2025Bialecki AndrewChief Executive OfficerSaletrading plan set in advance · Form 144 notice 2 December 2025800$28.84$23,072Form 4
    4 December 2025Bialecki AndrewChief Executive OfficerSaletrading plan set in advance · Form 144 notice 2 December 2025952$30.00$28,560Form 4
    2 December 2025Bialecki AndrewChief Executive OfficerSaletrading plan set in advance · Form 144 notice 2 December 2025142,045$28.62$4.1 millionForm 4
    24 November 2025Bialecki AndrewChief Executive OfficerSaletrading plan set in advance144,717$27.76$4.0 millionForm 4
    20 November 2025Edmond LandonChief Legal OfficerSaletrading plan set in advance · Form 144 notice 20 November 202510,374$27.83$288,708Form 4
    20 November 2025Edmond LandonChief Legal OfficerSaletrading plan set in advance · Form 144 notice 20 November 20254,020$26.97$108,419Form 4
    18 November 2025Bialecki AndrewChief Executive OfficerSaletrading plan set in advance147,329$27.16$4.0 millionForm 4
    17 November 2025Rowland Stephen EricPresidentSaletrading plan set in advance · Form 144 notice 17 November 20257,104$27.39$194,579Form 4
    17 November 2025Galvin CarmelChief People OfficerSaletrading plan set in advance · Form 144 notice 17 November 20257,120$27.74$197,509Form 4
    17 November 2025Galvin CarmelChief People OfficerSaletrading plan set in advance · Form 144 notice 17 November 20254,036$27.11$109,416Form 4
    14 November 2025Whalen AmandaChief Financial OfficerSaletrading plan set in advance · Form 144 notice 14 November 202514,700$28.61$420,567Form 4
    14 November 2025Whalen AmandaChief Financial OfficerSaletrading plan set in advance · Form 144 notice 14 November 2025300$27.89$8,367Form 4
    11 November 2025Bialecki AndrewChief Executive OfficerSaletrading plan set in advance140,464$29.74$4.2 millionForm 4
    11 November 2025Hallen Ed, by Hodgkins TrustDirectorSaletrading plan set in advance · Form 144 notice 12 November 2025545$30.00$16,350Form 4
    11 November 2025Hallen Ed, by Hodgkins LLCDirectorSaletrading plan set in advance · Form 144 notice 12 November 20252,266$30.00$67,980Form 4
    10 November 2025Hallen Ed, by Hodgkins TrustDirectorSaletrading plan set in advance · Form 144 notice 10 November 20258,572$30.05$257,589Form 4
    10 November 2025Hallen Ed, by Hodgkins LLCDirectorSaletrading plan set in advance · Form 144 notice 10 November 202550,920$30.04$1.5 millionForm 4
    A filing with several lines appears once per line.
    Read morePay taken in stock by the insider's own choice has the filing's footnote, word for word, in the note under it; for the others, hold the pointer on the type. An award filed at no price shows n/a.