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Klaviyo, Inc.

KVYO
Exchange
NYSE
Industry
Services-Prepackaged Software
SEC CIK
0001835830

In the last 90 days, Klaviyo, Inc. insiders filed 0 open-market purchases and 7 sales; 277 institutions reported holding it in 13F filings for Q2 2026, worth $2.19B in total; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Klaviyo, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
7 filings
5 insiders, $92.4M in total
Insiders trading
5
Net value
−$92.4M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Klaviyo, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Klaviyo, Inc.
NameTitleLast reported holdingLast filingFilings, past year
Hallen EdDirector, 10% Owner446,946IndirectSep 25, 20265
Smith Erica EllenChief Financial Officer1,150,684Sep 17, 20261
St. Ledger SusanDirector23,433Sep 14, 20263
Edmond LandonChief Legal Officer477,866Sep 1, 202613
Shopify Inc.10% Owner–Aug 31, 20264
Shopify Strategic Holdings 3 LLC10% Owner–Aug 31, 20264
Fernandez Gomez LucianoCo-Chief Executive Officer2,301,573Aug 18, 20266
Galvin CarmelChief People Officer907,458Aug 18, 20265
Whalen AmandaChief Financial Officer795,242Aug 18, 202611
Summit Partners L P10% Owner0IndirectAug 13, 20261
Summit Partners Growth Equity Fund IX-A, L.P.10% Owner0IndirectAug 13, 20261
Summit Partners Growth Equity Fund IX-B, L.P.10% Owner0IndirectAug 13, 20261
Summit Investors Ge IX/VC IV, LLC10% Owner0IndirectAug 13, 20261
Summit Partners Co-Invest (Kiwi), LP10% Owner0IndirectAug 13, 20261
Summit Investors Ge IX/VC IV (UK), L.P.10% Owner0IndirectAug 13, 20261
Oulman RoxanneDirector16,775IndirectJul 24, 20262
Ceran JenniferDirector45,513Jun 11, 20262
Weisman TonyDirector104,174Jun 11, 20261
Bialecki AndrewCo-Chief Executive Officer0May 28, 202625
Rowland Stephen EricPresident434,294Dec 17, 20253
Fagnan Jeff10% Owner3,900IndirectApr 10, 20250
Chaves AllenChief Technology Officer0Sep 18, 20240
Astral Capital ABEH, LLC10% Owner5,129,342Feb 15, 20240
Astral Capital ABEH Manager, LLC10% Owner5,129,342Feb 15, 20240
Karlen Jon10% Owner5,129,342Feb 15, 20240
Accomplice Fund I, L.P.10% Owner26,720Oct 23, 20230
Moore Ryan R10% Owner26,720Oct 23, 20230
Accomplices Associates I, LLC10% Owner26,720Oct 23, 20230

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Dec 17, 2025 (view filing)Dec 152 daysHallen EdDirector, 10% OwnerSSaleSeries A Common Stock−757$30.15−$22.8K−0.1%607.9K after2 lots10b5-1
Dec 17, 2025 (view filing)Dec 152 daysRowland Stephen EricPresidentSSaleSeries A Common Stock−7.10K$29.45−$209.2K−1.6%434.3K after2 lots10b5-1
Dec 17, 2025 (view filing)Dec 16-171 dayBialecki AndrewChief Executive OfficerSSaleSeries A Common Stock−238.6K$29.61−$7.07M−100.0%0 after2 lots10b5-1
Dec 19, 2025 (view filing)Dec 172 daysHallen EdDirector, 10% OwnerSSaleSeries A Common Stock−117.5K$30.36−$3.57M−18.3%525.2K after2 lots10b5-1
Dec 19, 2025 (view filing)Dec 181 dayWhalen AmandaChief Financial OfficerSSaleSeries A Common Stock−14.0K$31.38−$439.4K−3.0%452.2K after2 lots10b5-1
Dec 19, 2025 (view filing)Dec 181 dayEdmond LandonChief Legal OfficerSSaleSeries A Common Stock−14.2K$31.38−$445.3K−3.9%353.9K after2 lots10b5-1
Dec 23, 2025 (view filing)Dec 221 dayBialecki AndrewChief Executive OfficerSSaleSeries A Common Stock−100.0K$32.97−$3.30M−100.0%0 after2 lots10b5-1
Jan 8, 2026 (view filing)Jan 6-72 daysBialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−154.2K$29.03−$4.48M−100.0%0 after3 lots10b5-1
Jan 15, 2026 (view filing)Jan 132 daysBialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−140.6K$27.41−$3.85M−100.0%0 after2 lots10b5-1
Jan 16, 2026 (view filing)Jan 151 dayEdmond LandonChief Legal OfficerSSaleSeries A Common Stock−10.0K$25.83−$258.3K−2.8%343.9K after2 lots10b5-1
Jan 16, 2026 (view filing)Jan 151 dayWhalen AmandaChief Financial OfficerSSaleSeries A Common Stock−14.0K$25.83−$361.7K−3.1%442.2K after2 lots10b5-1
Jan 22, 2026 (view filing)Jan 202 daysBialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−167.9K$24.16−$4.06M−100.0%0 after2 lots10b5-1
Jan 29, 2026 (view filing)Jan 272 daysBialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−155.2K$25.33−$3.93M−100.0%0 after2 lots10b5-1
Feb 17, 2026 (view filing)Feb 125 daysCeran JenniferDirectorPPurchaseSeries A Common Stock+16.3K$18.38+$300.3K+113.8%30.7K after
Feb 18, 2026 (view filing)Feb 135 daysWhalen AmandaChief Financial OfficerSSaleSeries A Common Stock−14.0K$18.88−$264.3K−3.1%442.2K after2 lots10b5-1
Feb 26, 2026 (view filing)Feb 242 daysBialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−200.0K$16.76−$3.35M−100.0%0 after2 lots10b5-1
Mar 5, 2026 (view filing)Mar 32 daysBialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−200.0K$18.64−$3.73M−100.0%0 after2 lots10b5-1
Mar 5, 2026 (view filing)Mar 5Same dayEdmond LandonChief Legal OfficerSSaleSeries A Common Stock−15.1K$20.16−$304.3K−4.4%326.7K after10b5-1
Mar 12, 2026 (view filing)Mar 102 daysBialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−206.8K$19.96−$4.13M−100.0%0 after2 lots10b5-1
Mar 13, 2026 (view filing)Mar 121 dayWhalen AmandaChief Financial OfficerSSaleSeries A Common Stock−14.0K$19.58−$274.2K−3.3%412.4K after2 lots10b5-1
Mar 13, 2026 (view filing)Mar 121 dayEdmond LandonChief Legal OfficerSSaleSeries A Common Stock−14.4K$20.15−$289.5K−4.4%312.4K after10b5-1
Mar 19, 2026 (view filing)Mar 172 daysBialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−200.0K$19.37−$3.87M−100.0%0 after2 lots10b5-1
Mar 26, 2026 (view filing)Mar 242 daysBialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−200.0K$18.17−$3.63M−100.0%0 after10b5-1
Apr 2, 2026 (view filing)Mar 312 daysBialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−200.0K$19.42−$3.88M−100.0%0 after10b5-1
Apr 9, 2026 (view filing)Apr 72 daysBialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−200.0K$18.63−$3.73M−100.0%0 after10b5-1
Apr 16, 2026 (view filing)Apr 142 daysBialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−200.0K$17.19−$3.44M−100.0%0 after2 lots10b5-1
Apr 17, 2026 (view filing)Apr 161 dayWhalen AmandaChief Financial OfficerSSaleSeries A Common Stock−14.0K$18.54−$259.6K−1.5%895.1K after10b5-1
Apr 22, 2026 (view filing)Apr 202 daysEdmond LandonChief Legal OfficerSSaleSeries A Common Stock−9.62K$20.00−$192.5K−1.6%584.1K after10b5-1
May 14, 2026 (view filing)May 122 daysBialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−200.0K$14.61−$2.92M−100.0%0 after2 lots10b5-1
May 18, 2026 (view filing)May 144 daysWhalen AmandaChief Financial OfficerSSaleSeries A Common Stock−14.0K$14.26−$199.6K−1.5%895.1K after10b5-1
May 20, 2026 (view filing)May 191 dayBialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−200.0K$14.88−$2.98M−100.0%0 after10b5-1
May 20, 2026 (view filing)May 182 daysSt. Ledger SusanDirectorSSaleSeries A Common Stock−9.33K$14.27−$133.2K−46.0%10.9K after10b5-1
May 28, 2026 (view filing)May 262 daysBialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−212.5K$14.61−$3.11M−100.0%0 after10b5-1
Jun 18, 2026 (view filing)Jun 18Same dayWhalen AmandaChief Financial OfficerSSaleSeries A Common Stock−14.0K$13.23−$185.2K−1.6%852.2K after10b5-1
Jul 17, 2026 (view filing)8:01 PM ETJul 161 dayWhalen AmandaChief Financial OfficerSSaleSeries A Common Stock−14.0K$17.75−$248.5K−1.6%838.2K after10b5-1
Aug 13, 2026 (view filing)4:30 PM ETAug 112 daysSummit Partners L P and 5 others10% OwnerSSaleSeries A Common Stock, par value $0.001 per share−5.00M$17.71−$88.5M−100.0%0 after
Aug 18, 2026 (view filing)8:02 PM ETAug 144 daysWhalen AmandaChief Financial OfficerSSaleSeries A Common Stock−14.0K$18.47−$258.6K−1.7%824.2K after10b5-1
Sep 1, 2026 (view filing)8:16 PM ETAug 28-314 daysEdmond LandonChief Legal OfficerSSaleSeries A Common Stock−61.6K$20.07−$1.24M−11.4%477.9K after2 lots10b5-1
Sep 1, 2026 (view filing)8:18 PM ETAug 311 dayHallen EdDirector, 10% OwnerSSaleSeries A Common Stock−98.8K$20.48−$2.02M−17.5%465.6K after2 lots10b5-1
Sep 14, 2026 (view filing)4:49 PM ETSep 113 daysSt. Ledger SusanDirectorSSaleSeries A Common Stock−2.33K$15.93−$37.1K−9.0%23.4K after10b5-1
Sep 25, 2026 (view filing)5:50 PM ETSep 241 dayHallen EdDirector, 10% OwnerSSaleSeries A Common Stock−1.30K$17.02−$22.1K−0.3%446.9K after2 lots10b5-1