Klaviyo, Inc.
A maker of marketing software that helps online stores send personalized email and SMS campaigns, using customer data pulled from platforms like Shopify to trigger automated messages such as cart-abandonment reminders. Founded in 2012 in Boston by Andrew Bialecki and Ed Hallen, the company takes its name from the Spanish word "clavija," a mountaineering piton — a nod to supporting businesses as they "climb the mountain" of growth.
Sold 2.02M
Granted 351.7K
Granted 492.4K · Sold 56.0K
Granted 281.4K · Sold 39.1K
Granted 14.8K
Granted 14.8K
Granted 14.8K
Granted 14.8K · Sold 9.3K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Bialecki AndrewCo-Chief Executive Officer, Director, 10% owner · 25 transactions | -2.6% | 75.33M | — | — | 2.02M |
| Fernandez Gomez LucianoCo-Chief Executive Officer, Director · 2 transactions | -1% | 2.32M | — | — | — |
| Galvin CarmelChief People Officer · 3 transactions | +52.1% | 938.0K | 351.7K | — | — |
| Whalen AmandaChief Financial Officer · 11 transactions | +182.7% | 852.2K | 492.4K | — | 56.0K |
| Edmond LandonChief Legal Officer · 6 transactions | — | 561.8K | 281.4K | — | 39.1K |
| Weisman TonyDirector · 1 transaction | +13.5% | 125.0K | 14.8K | — | — |
| Oulman RoxanneDirector · 2 transactions | — | 61.8K | 14.8K | — | — |
| Ceran JenniferDirector · 1 transaction | +48.3% | 45.5K | 14.8K | — | — |
| St. Ledger SusanDirector · 3 transactions | +135.5% | 25.8K | 14.8K | — | 9.3K |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last 6 months: -2.12M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.