Klaviyo, Inc.

KVYO
Exchange
NYSE
Industry
Services-Prepackaged Software
SEC CIK
0001835830

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 dateInsiderTransactionSharesAvg priceValueShares afterHolding changeFiling
Sep 25, 20265:50 PM ETSep 24, 2026Hallen EdDirector, 10% OwnerSSaleSeries A Common Stock−1.3K$17.02−$22.13K446.95K−0.3%SEC10b5-1
Sep 14, 20264:49 PM ETSep 11, 2026St. Ledger SusanDirectorSSaleSeries A Common Stock−2.33K$15.93−$37.09K23.43K−9.0%SEC10b5-1
Sep 1, 20268:18 PM ETAug 31, 2026Hallen EdDirector, 10% OwnerSSaleSeries A Common Stock−98.78K$20.4821−$2.02M465.63K−17.5%SEC10b5-1
Sep 1, 20268:16 PM ETAug 28 – Aug 31, 2026Edmond LandonChief Legal OfficerSSaleSeries A Common Stock−61.58K$20.0666−$1.24M477.87K−11.4%SEC10b5-1
Aug 18, 20268:02 PM ETAug 14, 2026Whalen AmandaChief Financial OfficerSSaleSeries A Common Stock−14K$18.47−$258.58K824.19K−1.7%SEC10b5-1
Aug 13, 20264:30 PM ETAug 11, 2026SUMMIT PARTNERS L P and 5 others10% OwnerSSaleSeries A Common Stock, par value $0.001 per share−5M$17.71−$88.55M0−100.0%SEC
Jul 17, 20268:01 PM ETJul 16, 2026Whalen AmandaChief Financial OfficerSSaleSeries A Common Stock−14K$17.75−$248.5K838.19K−1.6%SEC10b5-1
Jun 18, 2026Jun 18, 2026Whalen AmandaChief Financial OfficerSSaleSeries A Common Stock−14K$13.23−$185.22K852.19K−1.6%SEC10b5-1
May 28, 2026May 26, 2026Bialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−212.53K$14.61−$3.11M0−100.0%SEC10b5-1
May 20, 2026May 18, 2026St. Ledger SusanDirectorSSaleSeries A Common Stock−9.33K$14.27−$133.2K10.94K−46.0%SEC10b5-1
May 20, 2026May 19, 2026Bialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−200K$14.88−$2.98M0−100.0%SEC10b5-1
May 18, 2026May 14, 2026Whalen AmandaChief Financial OfficerSSaleSeries A Common Stock−14K$14.26−$199.64K895.14K−1.5%SEC10b5-1
May 14, 2026May 12, 2026Bialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−200K$14.6096−$2.92M0−100.0%SEC10b5-1
Apr 22, 2026Apr 20, 2026Edmond LandonChief Legal OfficerSSaleSeries A Common Stock−9.62K$20.00−$192.46K584.12K−1.6%SEC10b5-1
Apr 17, 2026Apr 16, 2026Whalen AmandaChief Financial OfficerSSaleSeries A Common Stock−14K$18.54−$259.56K895.14K−1.5%SEC10b5-1
Apr 16, 2026Apr 14, 2026Bialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−200K$17.1856−$3.44M0−100.0%SEC10b5-1
Apr 9, 2026Apr 7, 2026Bialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−200K$18.63−$3.73M0−100.0%SEC10b5-1
Apr 2, 2026Mar 31, 2026Bialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−200K$19.42−$3.88M0−100.0%SEC10b5-1
Mar 26, 2026Mar 24, 2026Bialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−200K$18.17−$3.63M0−100.0%SEC10b5-1
Mar 19, 2026Mar 17, 2026Bialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−200K$19.3691−$3.87M0−100.0%SEC10b5-1
Mar 13, 2026Mar 12, 2026Edmond LandonChief Legal OfficerSSaleSeries A Common Stock−14.37K$20.15−$289.47K312.36K−4.4%SEC10b5-1
Mar 13, 2026Mar 12, 2026Whalen AmandaChief Financial OfficerSSaleSeries A Common Stock−14K$19.5822−$274.15K412.43K−3.3%SEC10b5-1
Mar 12, 2026Mar 10, 2026Bialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−206.83K$19.9579−$4.13M0−100.0%SEC10b5-1
Mar 5, 2026Mar 5, 2026Edmond LandonChief Legal OfficerSSaleSeries A Common Stock−15.09K$20.16−$304.27K326.73K−4.4%SEC10b5-1
Mar 5, 2026Mar 3, 2026Bialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−200K$18.6393−$3.73M0−100.0%SEC10b5-1
Feb 26, 2026Feb 24, 2026Bialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−200K$16.7649−$3.35M0−100.0%SEC10b5-1
Feb 18, 2026Feb 13, 2026Whalen AmandaChief Financial OfficerSSaleSeries A Common Stock−14K$18.8819−$264.35K442.22K−3.1%SEC10b5-1
Feb 17, 2026Feb 12, 2026Ceran JenniferDirectorPPurchaseSeries A Common Stock+16.34K$18.38+$300.31K30.69K+113.8%SEC
Jan 29, 2026Jan 27, 2026Bialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−155.22K$25.3283−$3.93M0−100.0%SEC10b5-1
Jan 22, 2026Jan 20, 2026Bialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−167.93K$24.1559−$4.06M0−100.0%SEC10b5-1
Jan 16, 2026Jan 15, 2026Whalen AmandaChief Financial OfficerSSaleSeries A Common Stock−14K$25.833−$361.66K442.22K−3.1%SEC10b5-1
Jan 16, 2026Jan 15, 2026Edmond LandonChief Legal OfficerSSaleSeries A Common Stock−10K$25.8337−$258.34K343.88K−2.8%SEC10b5-1
Jan 15, 2026Jan 13, 2026Bialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−140.65K$27.4081−$3.85M0−100.0%SEC10b5-1
Jan 8, 2026Jan 6 – Jan 7, 2026Bialecki AndrewCo-Chief Executive OfficerSSaleSeries A Common Stock−154.15K$29.0315−$4.48M0−100.0%SEC10b5-1
Dec 23, 2025Dec 22, 2025Bialecki AndrewChief Executive OfficerSSaleSeries A Common Stock−100K$32.973−$3.3M0−100.0%SEC10b5-1
Dec 19, 2025Dec 18, 2025Edmond LandonChief Legal OfficerSSaleSeries A Common Stock−14.19K$31.3814−$445.3K353.88K−3.9%SEC10b5-1
Dec 19, 2025Dec 18, 2025Whalen AmandaChief Financial OfficerSSaleSeries A Common Stock−14K$31.3831−$439.36K452.17K−3.0%SEC10b5-1
Dec 19, 2025Dec 17, 2025Hallen EdDirector, 10% OwnerSSaleSeries A Common Stock−117.55K$30.3641−$3.57M525.25K−18.3%SEC10b5-1
Dec 17, 2025Dec 16 – Dec 17, 2025Bialecki AndrewChief Executive OfficerSSaleSeries A Common Stock−238.65K$29.6099−$7.07M0−100.0%SEC10b5-1
Dec 17, 2025Dec 15, 2025Rowland Stephen EricPresidentSSaleSeries A Common Stock−7.1K$29.4507−$209.22K434.29K−1.6%SEC10b5-1
Dec 17, 2025Dec 15, 2025Hallen EdDirector, 10% OwnerSSaleSeries A Common Stock−757$30.1459−$22.82K607.92K−0.1%SEC10b5-1
Dec 11, 2025Dec 9 – Dec 11, 2025Bialecki AndrewChief Executive OfficerSSaleSeries A Common Stock−231.36K$29.7113−$6.87M0−100.0%SEC10b5-1
Dec 4, 2025Dec 2 – Dec 4, 2025Bialecki AndrewChief Executive OfficerSSaleSeries A Common Stock−143K$28.6292−$4.09M0−100.0%SEC10b5-1
Nov 26, 2025Nov 24, 2025Bialecki AndrewChief Executive OfficerSSaleSeries A Common Stock−144.72K$27.76−$4.02M0−100.0%SEC10b5-1
Nov 21, 2025Nov 20, 2025Edmond LandonChief Legal OfficerSSaleSeries A Common Stock−14.39K$27.5898−$397.13K376.47K−3.7%SEC10b5-1
Nov 20, 2025Nov 18, 2025Bialecki AndrewChief Executive OfficerSSaleSeries A Common Stock−147.33K$27.16−$4M0−100.0%SEC10b5-1
Nov 18, 2025Nov 17, 2025Rowland Stephen EricPresidentSSaleSeries A Common Stock−7.1K$27.39−$194.58K441.4K−1.6%SEC10b5-1
Nov 18, 2025Nov 17, 2025Galvin CarmelChief People OfficerSSaleSeries A Common Stock−11.16K$27.5121−$306.92K639.86K−1.7%SEC10b5-1
Nov 18, 2025Nov 14, 2025Whalen AmandaChief Financial OfficerSSaleSeries A Common Stock−15K$28.5956−$428.93K481.72K−3.0%SEC10b5-1
Nov 13, 2025Nov 11, 2025Bialecki AndrewChief Executive OfficerSSaleSeries A Common Stock−140.46K$29.74−$4.18M0−100.0%SEC10b5-1