Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Klaviyo, Inc. (KVYO) since 2023 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Klaviyo, Inc.. Table 2 shows the detailed insider transactions. This company's CIK number is 1835830.
Total stock buying since 2023: $853,149.
Total stock sales since 2023: $1,364,124,457.
Total stock option exercises since 2023: $0.
| Insider Buying | Insider Sales | Option Exercises | ||||
|---|---|---|---|---|---|---|
| Year | Shares | Value | Shares | Value | Shares | Value |
| 2025 | 3,900 | $100,503 | 29,190,722 | $939,753,152 | 0 | $0 |
| 2024 | 23,000 | $752,646 | 3,762,209 | $134,934,742 | 0 | $0 |
| 2023 | 0 | $0 | 10,219,496 | $289,436,563 | 0 | $0 |
| Trading Period | Insider Buying | Insider Sales | Option Exercises | |||
|---|---|---|---|---|---|---|
| year-month | Shares | Value | Shares | Value | Shares | Value |
| 2025-09 | 0 | $0 | 223,304 | $6,915,724 | 0 | $0 |
| 2025-08 | 0 | $0 | 7,744,927 | $232,794,223 | 0 | $0 |
| 2025-07 | 0 | $0 | 36,237 | $1,142,589 | 0 | $0 |
| 2025-06 | 0 | $0 | 4,022,079 | $134,144,187 | 0 | $0 |
| 2025-05 | 0 | $0 | 15,019,338 | $494,581,596 | 0 | $0 |
| 2025-04 | 3,900 | $100,503 | 22,060 | $586,094 | 0 | $0 |
| 2025-03 | 0 | $0 | 2,051,710 | $66,683,965 | 0 | $0 |
| 2025-02 | 0 | $0 | 11,531 | $463,603 | 0 | $0 |
| 2025-01 | 0 | $0 | 59,536 | $2,441,171 | 0 | $0 |
| 2024-12 | 0 | $0 | 2,144,536 | $83,989,894 | 0 | $0 |
| 2024-11 | 13,515 | $501,920 | 44,536 | $1,539,164 | 0 | $0 |
| 2024-10 | 0 | $0 | 10,000 | $353,600 | 0 | $0 |
| 2024-09 | 0 | $0 | 274,300 | $8,612,453 | 0 | $0 |
| 2024-08 | 9,485 | $250,726 | 1,199,846 | $38,195,374 | 0 | $0 |
| 2024-05 | 0 | $0 | 23,500 | $579,380 | 0 | $0 |
| 2024-04 | 0 | $0 | 32,158 | $799,219 | 0 | $0 |
| 2024-02 | 0 | $0 | 33,333 | $865,658 | 0 | $0 |
| 2023-10 | 0 | $0 | 2,701,375 | $76,508,341 | 0 | $0 |
| 2023-09 | 0 | $0 | 7,518,121 | $212,928,222 | 0 | $0 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-09-02 | Bialecki Andrew (Chief Executive Officer) | Sale | 223,304 | 30.97 | 6,915,724 |
| 2025-08-26 | Bialecki Andrew (Chief Executive Officer) | Sale | 226,702 | 31.36 | 7,109,374 |
| 2025-08-25 | Summit Investors Ge Ix/vc Iv (uk), L.p. | Sale | 975,000 | 30.01 | 29,259,750 |
| 2025-08-18 | Edmond Landon (Chief Legal Officer) | Sale | 9,965 | 31.46 | 313,498 |
| 2025-08-18 | Galvin Carmel (Chief People Officer) | Sale | 11,155 | 31.67 | 353,278 |
| 2025-08-18 | Rowland Stephen Eric (President) | Sale | 7,105 | 31.46 | 223,523 |
| 2025-08-15 | Whalen Amanda (Chief Financial Officer) | Sale | 15,000 | 31.32 | 469,800 |
| 2025-08-13 | Summit Investors Ge Ix/vc Iv (uk), L.p. | Sale | 6,500,000 | 30.01 | 195,065,000 |
| 2025-07-15 | Rowland Stephen Eric (President) | Sale | 14,158 | 31.56 | 446,826 |
| 2025-07-11 | Whalen Amanda (Chief Financial Officer) | Sale | 15,000 | 31.49 | 472,350 |
| 2025-06-16 | Rowland Stephen Eric (President) | Sale | 7,079 | 34.20 | 242,137 |
| 2025-06-13 | Whalen Amanda (Chief Financial Officer) | Sale | 15,000 | 33.47 | 502,050 |
| 2025-06-04 | Summit Investors Ge Ix/vc Iv (uk), L.p. | Sale | 4,000,000 | 33.35 | 133,400,000 |
| 2025-05-19 | Summit Investors Ge Ix/vc Iv (uk), L.p. | Sale | 4,000,000 | 33.00 | 132,000,000 |
| 2025-05-16 | Edmond Landon (Chief Legal Officer) | Sale | 9,965 | 34.85 | 347,280 |
| 2025-05-16 | Whalen Amanda (Chief Financial Officer) | Sale | 15,000 | 34.98 | 524,700 |
| 2025-05-16 | Bialecki Andrew (Chief Executive Officer) | Sale | 10,969,078 | 32.90 | 360,827,820 |
| 2025-05-16 | Galvin Carmel (Chief People Officer) | Sale | 11,156 | 35.01 | 390,571 |
| 2025-05-16 | Rowland Stephen Eric (President) | Sale | 7,079 | 34.86 | 246,773 |
| 2025-05-15 | Rowland Stephen Eric (President) | Sale | 7,060 | 34.62 | 244,452 |
| 2025-04-15 | Rowland Stephen Eric (President) | Sale | 7,060 | 26.66 | 188,219 |
| 2025-04-11 | Whalen Amanda (Chief Financial Officer) | Sale | 15,000 | 26.52 | 397,875 |
| 2025-04-09 | Fagnan Jeff | Buy | 3,900 | 25.77 | 100,503 |
| 2025-03-14 | Whalen Amanda (Chief Financial Officer) | Sale | 15,000 | 33.23 | 498,449 |
| 2025-03-14 | Summit Investors Ge Ix/vc Iv (uk), L.p. | Sale | 2,000,000 | 32.44 | 64,879,999 |
| 2025-03-07 | Rowland Stephen Eric (President) | Sale | 36,710 | 35.56 | 1,305,517 |
| 2025-02-25 | Galvin Carmel (Chief People Officer) | Sale | 11,531 | 40.20 | 463,603 |
| 2025-01-15 | Rowland Stephen Eric (President) | Sale | 4,536 | 40.04 | 181,621 |
| 2025-01-10 | Whalen Amanda (Chief Financial Officer) | Sale | 15,000 | 39.01 | 585,150 |
| 2025-01-07 | Edmond Landon (Chief Legal Officer) | Sale | 40,000 | 41.86 | 1,674,400 |
| 2024-12-16 | Rowland Stephen Eric (President) | Sale | 4,536 | 40.35 | 183,013 |
| 2024-12-13 | Whalen Amanda (Chief Financial Officer) | Sale | 15,000 | 39.39 | 590,850 |
| 2024-12-09 | Whalen Amanda (Chief Financial Officer) | Sale | 1,050 | 40.07 | 42,073 |
| 2024-12-09 | Summit Investors Ge Ix/vc Iv (uk), L.p. | Sale | 2,100,000 | 39.15 | 82,215,000 |
| 2024-12-06 | Whalen Amanda (Chief Financial Officer) | Sale | 23,950 | 40.04 | 958,958 |
| 2024-11-18 | Edmond Landon (Chief Legal Officer) | Sale | 40,000 | 34.56 | 1,382,400 |
| 2024-11-18 | Rowland Stephen Eric (President) | Sale | 4,536 | 34.56 | 156,764 |
| 2024-11-13 | Fagnan Jeff | Buy | 13,515 | 37.14 | 501,920 |
| 2024-10-04 | Whalen Amanda (Chief Financial Officer) | Sale | 10,000 | 35.36 | 353,600 |
| 2024-09-16 | Chaves Allen (Chief Technology Officer) | Sale | 130,000 | 31.62 | 4,110,600 |
| 2024-09-16 | Rowland Stephen Eric (President) | Sale | 18,114 | 31.24 | 565,881 |
| 2024-09-12 | Summit Investors Ge Ix/vc Iv (uk), L.p. | Sale | 107,205 | 31.33 | 3,358,732 |
| 2024-09-11 | Summit Investors Ge Ix/vc Iv (uk), L.p. | Sale | 2,942 | 31.01 | 91,231 |
| 2024-09-06 | Whalen Amanda (Chief Financial Officer) | Sale | 10,000 | 29.56 | 295,600 |
| 2024-09-03 | Summit Investors Ge Ix/vc Iv (uk), L.p. | Sale | 6,039 | 31.53 | 190,409 |
| 2024-08-30 | Summit Investors Ge Ix/vc Iv (uk), L.p. | Sale | 1,300 | 31.64 | 41,132 |
| 2024-08-29 | Summit Investors Ge Ix/vc Iv (uk), L.p. | Sale | 16,931 | 31.55 | 534,173 |
| 2024-08-28 | Summit Investors Ge Ix/vc Iv (uk), L.p. | Sale | 27,445 | 31.68 | 869,457 |
| 2024-08-27 | Summit Investors Ge Ix/vc Iv (uk), L.p. | Sale | 67,436 | 32.29 | 2,177,508 |
| 2024-08-26 | Edmond Landon (Chief Legal Officer) | Sale | 21,764 | 32.28 | 702,541 |
| 2024-08-26 | Summit Investors Ge Ix/vc Iv (uk), L.p. | Sale | 90,502 | 32.27 | 2,920,499 |
| 2024-08-23 | Summit Investors Ge Ix/vc Iv (uk), L.p. | Sale | 305,638 | 32.33 | 9,881,276 |
| 2024-08-22 | Summit Investors Ge Ix/vc Iv (uk), L.p. | Sale | 82,499 | 31.76 | 2,620,168 |
| 2024-08-21 | Summit Investors Ge Ix/vc Iv (uk), L.p. | Sale | 113,850 | 31.76 | 3,615,876 |
| 2024-08-16 | Summit Investors Ge Ix/vc Iv (uk), L.p. | Sale | 242,601 | 31.78 | 7,709,859 |
| 2024-08-16 | Rowland Stephen Eric (President) | Sale | 18,114 | 31.67 | 573,670 |
| 2024-08-12 | Chaves Allen (Chief Technology Officer) | Sale | 130,000 | 31.40 | 4,082,000 |
| 2024-08-09 | Edmond Landon (Chief Legal Officer) | Sale | 21,766 | 30.02 | 653,415 |
| 2024-08-09 | Whalen Amanda (Chief Financial Officer) | Sale | 60,000 | 30.23 | 1,813,800 |
| 2024-08-01 | Fagnan Jeff | Buy | 9,485 | 26.43 | 250,726 |
| 2024-05-22 | Ceran Jennifer (Director) | Sale | 13,000 | 24.65 | 320,450 |
| 2024-05-16 | St. Ledger Susan (Director) | Sale | 10,500 | 24.66 | 258,930 |
| 2024-04-05 | Edmond Landon (Chief Legal Officer) | Sale | 3,545 | 24.15 | 85,611 |
| 2024-04-02 | Edmond Landon (Chief Legal Officer) | Sale | 28,613 | 24.94 | 713,608 |
| 2024-02-29 | Weisman Tony (Director) | Sale | 33,333 | 25.97 | 865,658 |
| 2023-10-23 | Karlen Jon (10% Owner) | Sale | 294,008 | 28.32 | 8,326,894 |
| 2023-10-23 | Summit Investors Ge Ix/vc Iv (uk), L.p. (10% Owner) | Sale | 1,770,318 | 28.32 | 50,138,946 |
| 2023-10-23 | Moore Ryan R (10% Owner) | Sale | 637,049 | 28.32 | 18,042,501 |
| 2023-09-22 | Karlen Jon (10% Owner) | Sale | 816,907 | 28.32 | 23,136,440 |
| 2023-09-22 | Summit Investors Ge Ix/vc Iv (uk), L.p. (10% Owner) | Sale | 4,919,165 | 28.32 | 139,320,591 |
| 2023-09-22 | Moore Ryan R (10% Owner) | Sale | 1,770,049 | 28.32 | 50,131,327 |
| 2023-09-22 | Ceran Jennifer (Director) | Sale | 12,000 | 28.32 | 339,864 |
Insider trading activities including stock purchases, stock sales, and option exercises of KVYO listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Klaviyo, Inc. (symbol KVYO, CIK number 1835830) see the Securities and Exchange Commission (SEC) website.