| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Co-chief Executive Officer | Chief Executive Officer
1 company
Andrew Bialecki is Co-chief Executive Officer at KVYO. Andrew Bialecki's net worth is not public. Form 4 filings only show shares in the companies where this person is an insider.
Our model assigns Andrew Bialecki a strong insider score of 83/100, based on 36 past trades. Over a 12-month horizon, all 9 of those trades were profitable, with an average 12-month return of +44.1%.
Andrew Bialecki has 32 Form 4 filings on record from May 2025 to May 2026, all as Co-chief Executive Officer at Klaviyo (KVYO), 2025–2026.
The 99 reported transactions were 57 open-market sales, 39 conversions and 3 gifts.
Counted by filing, the open-market trades come to no purchases and 31 sales worth about $497.3M.
The largest open-market sale was 10,969,078 shares of KVYO at an average $32.90 on May 16, 2025, about $360.8M. Twelve months later KVYO was down 59%.
30 of the 31 sales since April 2023 were made under a Rule 10b5-1 trading plan; the other was not.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| May 26, 2026 | KVYO Klaviyo, Inc. | Co-chief Executive Officer | Sell10b5-1 | 212,529 | $14.61 | $3,105,048.69 | - | +25.9% | - | |
| May 19, 2026 | KVYO Klaviyo, Inc. | Co-chief Executive Officer | Sell10b5-1 | 200,000 | $14.88 | $2,976,000.00 | - | +19.3% | - | |
| May 12, 2026 | KVYO Klaviyo, Inc. | Co-chief Executive Officer | Sell10b5-1 | 200,000 | $14.61 | $2,921,928.84 | - | +23.7% | - | |
| Apr 14, 2026 | KVYO Klaviyo, Inc. | Co-chief Executive Officer | Sell10b5-1 | 200,000 | $17.19 | $3,437,113.90 | - | +3.1% | - | |
| Apr 7, 2026 | KVYO Klaviyo, Inc. | Co-chief Executive Officer | Sell10b5-1 | 200,000 | $18.63 | $3,726,000.00 | - | -8.8% | - | |
| Mar 31, 2026 | KVYO Klaviyo, Inc. | Co-chief Executive Officer | Sell10b5-1 | 200,000 | $19.42 | $3,884,000.00 | - | -23.3% | - | |
| Mar 24, 2026 | KVYO Klaviyo, Inc. | Co-chief Executive Officer | Sell10b5-1 | 200,000 | $18.17 | $3,634,000.00 | - | -28.6% | - | |
| Mar 17, 2026 | KVYO Klaviyo, Inc. | Co-chief Executive Officer | Sell10b5-1 | 200,000 | $19.37 | $3,873,820.55 | - | -26.8% | - | |
| Mar 10, 2026 | KVYO Klaviyo, Inc. | Co-chief Executive Officer | Sell10b5-1 | 206,827 | $19.96 | $4,127,832.92 | - | -24.3% | - | |
| Mar 3, 2026 | KVYO Klaviyo, Inc. | Co-chief Executive Officer | Sell10b5-1 | 200,000 | $18.64 | $3,727,861.12 | - | -2.7% | - |