Klaviyo, Inc. insider trading
In twelve months insiders at Klaviyo bought $300K and sold $193M on the open market; 86 of the 87 sales were under plans set months before.
New to this? How to read this page
- Insiders are the people who run the company: officers, directors and owners of 10% or more. They must report a trade on Form 4 within two business days.
- A purchase on the open market is the strongest sign: the insider spent their own money.
- A sale under a trading plan (Rule 10b5-1) says little: its dates were fixed months before. Sales outside a plan say more, but insiders sell for many reasons, such as taxes or a house.
- Grants, option exercises and shares held back for tax are left out.
- What is a Form 4? · Form 4 codes
What kind of trades
1 purchase worth $300K against 87 sales worth $193M; 86 of the sales were under plans set months before.
Every Form 4 line of the last twelve months, counted by kind. The grades come from the filing itself: whether the insider paid cash, whether a plan set the date, whether pay was taken in stock by choice.
Insider trades on the share price
last twelve months59 marks over twelve months, each in its grade: solid for the stronger signs, hollow or grey for the ones that say little.
The blue line is the daily close over twelve months. Each mark is one insider's trades on one day, on that day's price, sized by dollar value. Solid marks are the stronger signs; hollow and grey marks say little. Hover or tap a mark for who, how much and why.
Trades worth a closer look
A purchase stands out when two or more of these hold: a senior insider, several insiders buying within 90 days, a fall of 10% or more in the three months before, or over $1 million. A sale outside a plan is judged the same way. These are the Feed's rules.
Who traded
dollars, twelve months9 insiders traded. The most: Bialecki Andrew, sale under a plan $88.6M.
One row per insider, sold to the left and bought to the right, split by grade: the paler part of a bar is the part that says little.
How it compares
every company on the siteOpen-market sales, twelve months
Open-market purchases, twelve months
The bar ranks every company on the site from the lowest on the left to the highest on the right, in three equal thirds; the small figures under it are the values where each third starts, and the black tick is the middle company. The orange dot is this company; the grey ticks are the other companies in its industry (hover or tap for names). A hatched block is companies tied at none.
Every Form 4 line
| Traded | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 7 October 2026 | Hallen Ed, by Hodgkins Trust | Director | Saletrading plan set in advance · Form 144 notice 7 October 2026 | 38,667 | $17.40 | $672,806 | Form 4 |
| 7 October 2026 | Hallen Ed, by Hodgkins LLC | Director | Saletrading plan set in advance · Form 144 notice 7 October 2026 | 58,815 | $17.40 | $1.0 million | Form 4 |
| 24 September 2026 | Hallen Ed, by Hodgkins Trust | Director | Saletrading plan set in advance · Form 144 notice 24 September 2026 | 500 | $17.02 | $8,510 | Form 4 |
| 24 September 2026 | Hallen Ed, by Hodgkins LLC | Director | Saletrading plan set in advance · Form 144 notice 24 September 2026 | 800 | $17.02 | $13,616 | Form 4 |
| 11 September 2026 | St. Ledger Susan | Director | Saletrading plan set in advance · Form 144 notice 11 September 2026 | 2,328 | $15.93 | $37,085 | Form 4 |
| 31 August 2026 | Hallen Ed, by Hodgkins Trust | Director | Saletrading plan set in advance · Form 144 notice 31 August 2026 | 39,167 | $20.47 | $801,748 | Form 4 |
| 31 August 2026 | Hallen Ed, by Hodgkins LLC | Director | Saletrading plan set in advance · Form 144 notice 31 August 2026 | 59,615 | $20.49 | $1.2 million | Form 4 |
| 31 August 2026 | Edmond Landon | Chief Legal Officer | Saletrading plan set in advance · Form 144 notice 31 August 2026 | 8,103 | $20.44 | $165,625 | Form 4 |
| 28 August 2026 | Edmond Landon | Chief Legal Officer | Saletrading plan set in advance · Form 144 notice 28 August 2026 | 53,473 | $20.01 | $1.1 million | Form 4 |
| 14 August 2026 | Whalen Amanda | Chief Financial Officer | Saletrading plan set in advance · Form 144 notice 18 June 2026 | 14,000 | $18.47 | $258,580 | Form 4 |
| 11 August 2026 | Summit Partners L P, see footnotes | 10% owner | Saleafter a 27% rise over three months · 49% below its one-year high · Form 144 notice 11 August 2026 | 5,000,000 | $17.71 | $88.5 million | Form 4 |
| 16 July 2026 | Whalen Amanda | Chief Financial Officer | Saletrading plan set in advance · Form 144 notice 18 June 2026 | 14,000 | $17.75 | $248,500 | Form 4 |
| 18 June 2026 | Whalen Amanda | Chief Financial Officer | Saletrading plan set in advance · Form 144 notice 18 June 2026 | 14,000 | $13.23 | $185,220 | Form 4 |
| 26 May 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 26 May 2026 | 212,529 | $14.61 | $3.1 million | Form 4 |
| 19 May 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 7 April 2026 | 200,000 | $14.88 | $3.0 million | Form 4 |
| 18 May 2026 | St. Ledger Susan | Director | Saletrading plan set in advance · Form 144 notice 18 May 2026 | 9,334 | $14.27 | $133,196 | Form 4 |
| 14 May 2026 | Whalen Amanda | Chief Financial Officer | Saletrading plan set in advance · Form 144 notice 16 April 2026 | 14,000 | $14.26 | $199,640 | Form 4 |
| 12 May 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 7 April 2026 | 58,684 | $14.97 | $878,499 | Form 4 |
| 12 May 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 7 April 2026 | 141,316 | $14.46 | $2.0 million | Form 4 |
| 20 April 2026 | Edmond Landon | Chief Legal Officer | Saletrading plan set in advance · Form 144 notice 20 April 2026 | 9,623 | $20.00 | $192,460 | Form 4 |
| 16 April 2026 | Whalen Amanda | Chief Financial Officer | Saletrading plan set in advance · Form 144 notice 16 April 2026 | 14,000 | $18.54 | $259,560 | Form 4 |
| 14 April 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 7 April 2026 | 109,142 | $17.39 | $1.9 million | Form 4 |
| 14 April 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 7 April 2026 | 90,858 | $16.94 | $1.5 million | Form 4 |
| 7 April 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 7 April 2026 | 200,000 | $18.63 | $3.7 million | Form 4 |
| 31 March 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 24 February 2026 | 200,000 | $19.42 | $3.9 million | Form 4 |
| 24 March 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 24 February 2026 | 200,000 | $18.17 | $3.6 million | Form 4 |
| 17 March 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 24 February 2026 | 97,379 | $19.60 | $1.9 million | Form 4 |
| 17 March 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 24 February 2026 | 102,621 | $19.15 | $2.0 million | Form 4 |
| 12 March 2026 | Edmond Landon | Chief Legal Officer | Saletrading plan set in advance · Form 144 notice 12 March 2026 | 14,366 | $20.15 | $289,475 | Form 4 |
| 12 March 2026 | Whalen Amanda | Chief Financial Officer | Saletrading plan set in advance · Form 144 notice 18 December 2025 | 8,923 | $19.72 | $175,962 | Form 4 |
| 12 March 2026 | Whalen Amanda | Chief Financial Officer | Saletrading plan set in advance · Form 144 notice 18 December 2025 | 5,077 | $19.34 | $98,189 | Form 4 |
| 10 March 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 24 February 2026 | 206,127 | $19.96 | $4.1 million | Form 4 |
| 10 March 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 24 February 2026 | 700 | $19.34 | $13,538 | Form 4 |
| 5 March 2026 | Edmond Landon | Chief Legal Officer | Saletrading plan set in advance · Form 144 notice 18 December 2025 | 15,093 | $20.16 | $304,275 | Form 4 |
| 3 March 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 24 February 2026 | 154,022 | $18.86 | $2.9 million | Form 4 |
| 3 March 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 24 February 2026 | 45,978 | $17.90 | $823,006 | Form 4 |
| 24 February 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 24 February 2026 | 160,356 | $16.86 | $2.7 million | Form 4 |
| 24 February 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 24 February 2026 | 39,644 | $16.38 | $649,369 | Form 4 |
| 13 February 2026 | Whalen Amanda | Chief Financial Officer | Saletrading plan set in advance · Form 144 notice 18 December 2025 | 9,281 | $19.01 | $176,432 | Form 4 |
| 13 February 2026 | Whalen Amanda | Chief Financial Officer | Saletrading plan set in advance · Form 144 notice 18 December 2025 | 4,719 | $18.63 | $87,915 | Form 4 |
| 12 February 2026 | Ceran Jennifer | Director | Purchaseafter a 35% fall over three months · 61% below its one-year high | 16,339 | $18.38 | $300,311 | Form 4 |
| 27 January 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 2 December 2025 | 150,689 | $25.34 | $3.8 million | Form 4 |
| 27 January 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 2 December 2025 | 4,530 | $24.94 | $112,978 | Form 4 |
| 20 January 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 2 December 2025 | 167,130 | $24.16 | $4.0 million | Form 4 |
| 20 January 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 2 December 2025 | 796 | $23.29 | $18,539 | Form 4 |
| 15 January 2026 | Whalen Amanda | Chief Financial Officer | Saletrading plan set in advance · Form 144 notice 18 December 2025 | 7,826 | $26.08 | $204,102 | Form 4 |
| 15 January 2026 | Whalen Amanda | Chief Financial Officer | Saletrading plan set in advance · Form 144 notice 18 December 2025 | 6,174 | $25.52 | $157,560 | Form 4 |
| 15 January 2026 | Edmond Landon | Chief Legal Officer | Saletrading plan set in advance · Form 144 notice 18 December 2025 | 5,601 | $26.08 | $146,074 | Form 4 |
| 15 January 2026 | Edmond Landon | Chief Legal Officer | Saletrading plan set in advance · Form 144 notice 18 December 2025 | 4,399 | $25.52 | $112,262 | Form 4 |
| 13 January 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 2 December 2025 | 50,319 | $27.62 | $1.4 million | Form 4 |
| 13 January 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 2 December 2025 | 90,327 | $27.29 | $2.5 million | Form 4 |
| 7 January 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 2 December 2025 | 16,649 | $30.01 | $499,636 | Form 4 |
| 6 January 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 2 December 2025 | 135,122 | $28.92 | $3.9 million | Form 4 |
| 6 January 2026 | Bialecki Andrew | Co-Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 2 December 2025 | 2,382 | $28.52 | $67,935 | Form 4 |
| 22 December 2025 | Bialecki Andrew | Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 2 December 2025 | 93,066 | $33.05 | $3.1 million | Form 4 |
| 22 December 2025 | Bialecki Andrew | Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 2 December 2025 | 6,934 | $31.94 | $221,472 | Form 4 |
| 18 December 2025 | Edmond Landon | Chief Legal Officer | Saletrading plan set in advance · Form 144 notice 18 December 2025 | 13,718 | $31.41 | $430,882 | Form 4 |
| 18 December 2025 | Edmond Landon | Chief Legal Officer | Saletrading plan set in advance · Form 144 notice 18 December 2025 | 472 | $30.55 | $14,420 | Form 4 |
| 18 December 2025 | Whalen Amanda | Chief Financial Officer | Saletrading plan set in advance · Form 144 notice 18 December 2025 | 13,540 | $31.41 | $425,291 | Form 4 |
| 18 December 2025 | Whalen Amanda | Chief Financial Officer | Saletrading plan set in advance · Form 144 notice 18 December 2025 | 460 | $30.59 | $14,071 | Form 4 |
| 17 December 2025 | Hallen Ed, by Hodgkins Trust | Director | Saletrading plan set in advance · Form 144 notice 17 December 2025 | 34,878 | $30.35 | $1.1 million | Form 4 |
| 17 December 2025 | Hallen Ed, by Hodgkins LLC | Director | Saletrading plan set in advance · Form 144 notice 17 December 2025 | 82,672 | $30.37 | $2.5 million | Form 4 |
| 17 December 2025 | Bialecki Andrew | Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 2 December 2025 | 100,000 | $30.40 | $3.0 million | Form 4 |
| 16 December 2025 | Bialecki Andrew | Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 2 December 2025 | 138,648 | $29.04 | $4.0 million | Form 4 |
| 15 December 2025 | Rowland Stephen Eric | President | Saletrading plan set in advance · Form 144 notice 15 December 2025 | 3,913 | $29.81 | $116,647 | Form 4 |
| 15 December 2025 | Rowland Stephen Eric | President | Saletrading plan set in advance · Form 144 notice 15 December 2025 | 3,191 | $29.01 | $92,571 | Form 4 |
| 15 December 2025 | Hallen Ed, by Hodgkins Trust | Director | Saletrading plan set in advance · Form 144 notice 15 December 2025 | 157 | $30.13 | $4,730 | Form 4 |
| 15 December 2025 | Hallen Ed, by Hodgkins LLC | Director | Saletrading plan set in advance · Form 144 notice 15 December 2025 | 600 | $30.15 | $18,090 | Form 4 |
| 11 December 2025 | Bialecki Andrew | Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 2 December 2025 | 17,777 | $30.00 | $533,310 | Form 4 |
| 10 December 2025 | Bialecki Andrew | Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 2 December 2025 | 82,223 | $30.12 | $2.5 million | Form 4 |
| 9 December 2025 | Bialecki Andrew | Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 2 December 2025 | 130,562 | $29.42 | $3.8 million | Form 4 |
| 9 December 2025 | Bialecki Andrew | Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 2 December 2025 | 800 | $28.84 | $23,072 | Form 4 |
| 4 December 2025 | Bialecki Andrew | Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 2 December 2025 | 952 | $30.00 | $28,560 | Form 4 |
| 2 December 2025 | Bialecki Andrew | Chief Executive Officer | Saletrading plan set in advance · Form 144 notice 2 December 2025 | 142,045 | $28.62 | $4.1 million | Form 4 |
| 24 November 2025 | Bialecki Andrew | Chief Executive Officer | Saletrading plan set in advance | 144,717 | $27.76 | $4.0 million | Form 4 |
| 20 November 2025 | Edmond Landon | Chief Legal Officer | Saletrading plan set in advance · Form 144 notice 20 November 2025 | 10,374 | $27.83 | $288,708 | Form 4 |
| 20 November 2025 | Edmond Landon | Chief Legal Officer | Saletrading plan set in advance · Form 144 notice 20 November 2025 | 4,020 | $26.97 | $108,419 | Form 4 |
| 18 November 2025 | Bialecki Andrew | Chief Executive Officer | Saletrading plan set in advance | 147,329 | $27.16 | $4.0 million | Form 4 |
| 17 November 2025 | Rowland Stephen Eric | President | Saletrading plan set in advance · Form 144 notice 17 November 2025 | 7,104 | $27.39 | $194,579 | Form 4 |
| 17 November 2025 | Galvin Carmel | Chief People Officer | Saletrading plan set in advance · Form 144 notice 17 November 2025 | 7,120 | $27.74 | $197,509 | Form 4 |
| 17 November 2025 | Galvin Carmel | Chief People Officer | Saletrading plan set in advance · Form 144 notice 17 November 2025 | 4,036 | $27.11 | $109,416 | Form 4 |
| 14 November 2025 | Whalen Amanda | Chief Financial Officer | Saletrading plan set in advance · Form 144 notice 14 November 2025 | 14,700 | $28.61 | $420,567 | Form 4 |
| 14 November 2025 | Whalen Amanda | Chief Financial Officer | Saletrading plan set in advance · Form 144 notice 14 November 2025 | 300 | $27.89 | $8,367 | Form 4 |
| 11 November 2025 | Bialecki Andrew | Chief Executive Officer | Saletrading plan set in advance | 140,464 | $29.74 | $4.2 million | Form 4 |
| 11 November 2025 | Hallen Ed, by Hodgkins Trust | Director | Saletrading plan set in advance · Form 144 notice 12 November 2025 | 545 | $30.00 | $16,350 | Form 4 |
| 11 November 2025 | Hallen Ed, by Hodgkins LLC | Director | Saletrading plan set in advance · Form 144 notice 12 November 2025 | 2,266 | $30.00 | $67,980 | Form 4 |
| 10 November 2025 | Hallen Ed, by Hodgkins Trust | Director | Saletrading plan set in advance · Form 144 notice 10 November 2025 | 8,572 | $30.05 | $257,589 | Form 4 |
| 10 November 2025 | Hallen Ed, by Hodgkins LLC | Director | Saletrading plan set in advance · Form 144 notice 10 November 2025 | 50,920 | $30.04 | $1.5 million | Form 4 |