KVYO
Klaviyo, Inc. · Technology · Market cap $6.1B
Insiders sold $94.1M net in the last 90 days ·5 sellers, 0 buyers· 8 of 9 sales under Rule 10b5-1 plans· latest Form 4 filed Oct 9, 2026
Insider Buying
$300K
reported purchases (SEC code P)
Insider Selling
$193.3M
reported sales (SEC code S)
Unique Insiders
9
in the rolling window
Latest filing
Oct 9, 2026
Hallen Ed
Klaviyo, Inc. (KVYO) has 74 SEC Form 4 filings (172 transaction rows) in the rolling window, disclosed by 9 distinct insiders. Most recent filing: Oct 9, 2026.
Inside the rolling window, 9 insiders at Klaviyo, Inc. reported 1 open-market purchase totaling $300K and 58 open-market sales totaling $193.3M. The most active filer is Co-Chief Executive Officer Bialecki Andrew with 27 filings. Insiders have net sold $107.5M over the trailing 6 months. The most recent open-market filing is a sale of 97,482 shares by Director, 10% Owner Hallen Ed, dated Oct 7, 2026, worth $1.7M.
- Industry:Software - Application
- CEO:Andrew Bialecki
- Employees:2,400
- HQ:Boston, MA, US
- IPO:2023-09-20
| Source | |||||||
|---|---|---|---|---|---|---|---|
| Director, 10% Owner | Sale | 97,482 | $1.7M | Oct 9 | +16.6% | SEC ↗ | |
| Director, 10% Owner | Sale | 1,300 | $22K | Sep 25 | +27.8% | SEC ↗ | |
St. Ledger SusanFirst in 4 months | Director | Sale | 2,328 | $37K | Sep 14 | +16.0% | SEC ↗ |
Hallen EdFirst in 9 months | Director, 10% Owner | Sale | 98,782 | $2.0M | Sep 2 | +4.6% | SEC ↗ |
Edmond LandonFirst in 4 months | Chief Legal Officer | Sale | 53,473 | $1.1M | Sep 2 | +4.6% | SEC ↗ |
Edmond LandonFirst in 4 months | Chief Legal Officer | Sale | 8,103 | $166K | Sep 2 | +4.6% | SEC ↗ |
| Chief Financial Officer | Sale | 14,000 | $259K | Aug 18 | +13.4% | SEC ↗ | |
SUMMIT PARTNERS L PFirst filing | 10% Owner | Sale | 5,000,000 | $88.5M | Aug 13 | — | SEC ↗ |
| Chief Financial Officer | Sale | 14,000 | $249K | Jul 18 | — | SEC ↗ | |
| Chief Financial Officer | Sale | 14,000 | $185K | Jun 19 | — | SEC ↗ | |
| Co-Chief Executive Officer | Sale | 212,529 | $3.1M | May 29 | — | SEC ↗ | |
St. Ledger SusanFirst filing | Director | Sale | 9,334 | $133K | May 20 | — | SEC ↗ |
| Co-Chief Executive Officer | Sale | 200,000 | $3.0M | May 20 | — | SEC ↗ | |
| Chief Financial Officer | Sale | 14,000 | $200K | May 19 | — | SEC ↗ | |
| Co-Chief Executive Officer | Sale | 200,000 | $2.9M | May 15 | — | SEC ↗ | |
| Chief Legal Officer | Sale | 9,623 | $192K | Apr 22 | — | SEC ↗ | |
| Chief Financial Officer | Sale | 14,000 | $260K | Apr 17 | — | SEC ↗ | |
| Co-Chief Executive Officer | Sale | 200,000 | $3.4M | Apr 16 | — | SEC ↗ | |
| Co-Chief Executive Officer | Sale | 200,000 | $3.7M | Apr 9 | — | SEC ↗ | |
| Co-Chief Executive Officer | Sale | 200,000 | $3.9M | Apr 2 | — | SEC ↗ | |
| Co-Chief Executive Officer | Sale | 200,000 | $3.6M | Mar 26 | — | SEC ↗ | |
| Co-Chief Executive Officer | Sale | 200,000 | $3.9M | Mar 19 | — | SEC ↗ | |
| Chief Financial Officer | Sale | 14,000 | $274K | Mar 13 | — | SEC ↗ | |
| Chief Legal Officer | Sale | 14,366 | $289K | Mar 13 | — | SEC ↗ | |
| Co-Chief Executive Officer | Sale | 206,827 | $4.1M | Mar 12 | — | SEC ↗ |
Earnings: last 7 quarters
Frequently asked questions
How many SEC Form 4 insider filings does KVYO have?
Klaviyo, Inc. (KVYO) has 74 SEC Form 4 filings (172 transaction rows) in the rolling 365-day window, disclosed by 9 distinct insiders. Most recent filing: Oct 9, 2026.
When was the most recent SEC Form 4 filing for KVYO?
The most recent Form 4 filing for KVYO on Tracefour is dated Oct 9, 2026.
Who is the most active insider at KVYO?
The most active SEC Form 4 filer at KVYO in the rolling window is Co-Chief Executive Officer Bialecki Andrew, with 27 filings.
What is the net insider flow at KVYO over the last 6 months?
Over the trailing 180 days, insiders at KVYO have net sold $107.5M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at KVYO in the current window?
Inside the rolling window, insiders at KVYO bought $300K and sold $193.3M based on SEC Form 4 filings.
Can I get alerts for KVYO insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at Klaviyo, Inc. (KVYO). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
Klaviyo, Inc. is in the Technology sector.