KVYO insider buying and SEC filings, explained
Klaviyo, Inc. · CIK 1835830
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$300K
Insiders who bought
1
Sold (not marked 10b5-1)
$0
Planned sales (10b5-1)
$104.7M
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| Oct 7, 2026 | Planned (10b5-1) | Ed Hallen (Director and 10% owner) sold 97,482 shares indirectly (by entity) at about $17.40 ($1.7M), marked as a 10b5-1 plan trade. Holdings by entity down 13% to 388,131 shares. | SEC filing Filed Oct 9, 2026, 4:30 PM ET |
| Sep 24, 2026 | Planned (10b5-1) | Ed Hallen (Director and 10% owner) sold 1,300 shares indirectly (by entity) at about $17.02 ($22K), marked as a 10b5-1 plan trade. Holdings by entity down <1% to 446,946 shares. | SEC filing Filed Sep 25, 2026 |
| Sep 11, 2026 | Planned (10b5-1) | Ledger Susan St. (Director) sold 2,328 shares at $15.93 ($37K), marked as a 10b5-1 plan trade. Holdings down 9% to 23,433 shares. | SEC filing Filed Sep 14, 2026 |
| Aug 31, 2026 | Planned (10b5-1) | Ed Hallen (Director and 10% owner) sold 98,782 shares indirectly (by entity) at about $20.48 ($2.0M), marked as a 10b5-1 plan trade. Holdings by entity down 11% to 465,631 shares. | SEC filing Filed Sep 1, 2026 |
| Aug 28–31, 2026 | Planned (10b5-1) | Landon Edmond (Chief Legal Officer) sold 61,576 shares between Aug 28 and Aug 31 at about $20.07 ($1.2M), marked as a 10b5-1 plan trade. Holdings down 11% to 477,866 shares. | SEC filing Filed Sep 1, 2026 |
| Aug 14, 2026 | Planned (10b5-1) | Amanda Whalen (CFO) sold 14,000 shares at about $18.47 ($259K), marked as a 10b5-1 plan trade. Holdings down 2% to 824,192 shares. | SEC filing Filed Aug 18, 2026 |
| Jul 16, 2026 | Planned (10b5-1) | Amanda Whalen (CFO) sold 14,000 shares at about $17.75 ($249K), marked as a 10b5-1 plan trade. Holdings down 2% to 838,192 shares. | SEC filing Filed Jul 17, 2026 |
| Jun 18, 2026 | Planned (10b5-1) | Amanda Whalen (CFO) sold 14,000 shares at about $13.23 ($185K), marked as a 10b5-1 plan trade. Holdings down 2% to 852,192 shares. | SEC filing Filed Jun 18, 2026 |
| May 26, 2026 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 212,529 shares at about $14.61 ($3.1M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed May 28, 2026 |
| May 19, 2026 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 200,000 shares at about $14.88 ($3.0M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed May 20, 2026 |
| May 18, 2026 | Planned (10b5-1) | Ledger Susan St. (Director) sold 9,334 shares at $14.27 ($133K), marked as a 10b5-1 plan trade. Holdings down 46% to 10,939 shares. | SEC filing Filed May 20, 2026 |
| May 14, 2026 | Planned (10b5-1) | Amanda Whalen (CFO) sold 14,000 shares at about $14.26 ($200K), marked as a 10b5-1 plan trade. Holdings down 2% to 895,141 shares. | SEC filing Filed May 18, 2026 |
| May 12, 2026 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 200,000 shares at about $14.61 ($2.9M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed May 14, 2026 |
| Apr 20, 2026 | Planned (10b5-1) | Landon Edmond (Chief Legal Officer) sold 9,623 shares at $20.00 ($192K), marked as a 10b5-1 plan trade. Holdings down 2% to 584,124 shares. | SEC filing Filed Apr 22, 2026 |
| Apr 16, 2026 | Planned (10b5-1) | Amanda Whalen (CFO) sold 14,000 shares at about $18.54 ($260K), marked as a 10b5-1 plan trade. Holdings down 2% to 895,141 shares. | SEC filing Filed Apr 17, 2026 |
| Apr 14, 2026 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 200,000 shares at about $17.19 ($3.4M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Apr 16, 2026 |
| Apr 7, 2026 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 200,000 shares at about $18.63 ($3.7M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Apr 9, 2026 |
| Mar 31, 2026 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 200,000 shares at about $19.42 ($3.9M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Apr 2, 2026 |
| Mar 24, 2026 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 200,000 shares at about $18.17 ($3.6M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Mar 26, 2026 |
| Mar 17, 2026 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 200,000 shares at about $19.37 ($3.9M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Mar 19, 2026 |
| Mar 12, 2026 | Planned (10b5-1) | Landon Edmond (Chief Legal Officer) sold 14,366 shares at about $20.15 ($289K), marked as a 10b5-1 plan trade. Holdings down 4% to 312,362 shares. | SEC filing Filed Mar 13, 2026 |
| Mar 12, 2026 | Planned (10b5-1) | Amanda Whalen (CFO) sold 14,000 shares at about $19.58 ($274K), marked as a 10b5-1 plan trade. Holdings down 3% to 412,425 shares. | SEC filing Filed Mar 13, 2026 |
| Mar 10, 2026 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 206,827 shares at about $19.96 ($4.1M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Mar 12, 2026 |
| Mar 5, 2026 | Planned (10b5-1) | Landon Edmond (Chief Legal Officer) sold 15,093 shares at about $20.16 ($304K), marked as a 10b5-1 plan trade. Holdings down 4% to 326,728 shares. | SEC filing Filed Mar 5, 2026 |
| Mar 3, 2026 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 200,000 shares at about $18.64 ($3.7M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Mar 5, 2026 |
| Feb 24, 2026 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 200,000 shares at about $16.76 ($3.4M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Feb 26, 2026 |
| Feb 13, 2026 | Planned (10b5-1) | Amanda Whalen (CFO) sold 14,000 shares at about $18.88 ($264K), marked as a 10b5-1 plan trade. Holdings down 3% to 442,219 shares. | SEC filing Filed Feb 18, 2026 |
| Feb 12, 2026 | Purchase (code P) | Jennifer Ceran (Director) bought 16,339 shares at about $18.38 ($300K), reported as a purchase (code P). Holdings up 114% to 30,691 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 17, 2026 |
| Jan 27, 2026 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 155,219 shares at about $25.33 ($3.9M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Jan 29, 2026 |
| Jan 20, 2026 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 167,926 shares at about $24.16 ($4.1M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Jan 22, 2026 |
| Jan 15, 2026 | Planned (10b5-1) | Amanda Whalen (CFO) sold 14,000 shares at about $25.83 ($362K), marked as a 10b5-1 plan trade. Holdings down 3% to 442,219 shares. | SEC filing Filed Jan 16, 2026 |
| Jan 15, 2026 | Planned (10b5-1) | Landon Edmond (Chief Legal Officer) sold 10,000 shares at about $25.83 ($258K), marked as a 10b5-1 plan trade. Holdings down 3% to 343,882 shares. | SEC filing Filed Jan 16, 2026 |
| Jan 13, 2026 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 140,646 shares at about $27.41 ($3.9M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Jan 15, 2026 |
| Jan 6–7, 2026 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 154,153 shares between Jan 6 and Jan 7 at about $29.03 ($4.5M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Jan 8, 2026 |
| Dec 22, 2025 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 100,000 shares at about $32.97 ($3.3M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Dec 23, 2025 |
| Dec 18, 2025 | Planned (10b5-1) | Landon Edmond (Chief Legal Officer) sold 14,190 shares at about $31.38 ($445K), marked as a 10b5-1 plan trade. Holdings down 4% to 353,882 shares. | SEC filing Filed Dec 19, 2025 |
| Dec 18, 2025 | Planned (10b5-1) | Amanda Whalen (CFO) sold 14,000 shares at about $31.38 ($439K), marked as a 10b5-1 plan trade. Holdings down 3% to 452,174 shares. | SEC filing Filed Dec 19, 2025 |
| Dec 17, 2025 | Planned (10b5-1) | Ed Hallen (Director and 10% owner) sold 117,550 shares indirectly (by entity) at about $30.36 ($3.6M), marked as a 10b5-1 plan trade. Holdings by entity down 14% to 525,246 shares. | SEC filing Filed Dec 19, 2025 |
| Dec 16–17, 2025 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 238,648 shares between Dec 16, 2025 and Dec 17, 2025 at about $29.61 ($7.1M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Dec 17, 2025 |
| Dec 15, 2025 | Planned (10b5-1) | Stephen Eric Rowland (President / COO) sold 7,104 shares at about $29.45 ($209K), marked as a 10b5-1 plan trade. Holdings down 2% to 434,294 shares. | SEC filing Filed Dec 17, 2025 |
| Dec 15, 2025 | Planned (10b5-1) | Ed Hallen (Director and 10% owner) sold 757 shares indirectly (by entity) at about $30.15 ($23K), marked as a 10b5-1 plan trade. Holdings by entity down <1% to 607,918 shares. | SEC filing Filed Dec 17, 2025 |
| Dec 9–11, 2025 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 231,362 shares between Dec 9, 2025 and Dec 11, 2025 at about $29.71 ($6.9M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Dec 11, 2025 |
| Dec 2–4, 2025 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 142,997 shares between Dec 2, 2025 and Dec 4, 2025 at about $28.63 ($4.1M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Dec 4, 2025 |
| Nov 24, 2025 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 144,717 shares at about $27.76 ($4.0M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Nov 26, 2025 |
| Nov 20, 2025 | Planned (10b5-1) | Landon Edmond (Chief Legal Officer) sold 14,394 shares at about $27.59 ($397K), marked as a 10b5-1 plan trade. Holdings down 4% to 376,472 shares. | SEC filing Filed Nov 21, 2025 |
| Nov 18, 2025 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 147,329 shares at about $27.16 ($4.0M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Nov 20, 2025 |
| Nov 17, 2025 | Planned (10b5-1) | Stephen Eric Rowland (President / COO) sold 7,104 shares at about $27.39 ($195K), marked as a 10b5-1 plan trade. Holdings down 2% to 441,398 shares. | SEC filing Filed Nov 18, 2025 |
| Nov 17, 2025 | Planned (10b5-1) | Carmel Galvin (Chief People Officer) sold 11,156 shares at about $27.51 ($307K), marked as a 10b5-1 plan trade. Holdings down 2% to 639,860 shares. | SEC filing Filed Nov 18, 2025 |
| Nov 14, 2025 | Planned (10b5-1) | Amanda Whalen (CFO) sold 15,000 shares at about $28.60 ($429K), marked as a 10b5-1 plan trade. Holdings down 3% to 481,719 shares. | SEC filing Filed Nov 18, 2025 |
| Nov 11, 2025 | Planned (10b5-1) | Andrew Bialecki (CEO and Director) sold 140,464 shares at about $29.74 ($4.2M), marked as a 10b5-1 plan trade. Holdings down 100% to 0 shares. | SEC filing Filed Nov 13, 2025 |
| Nov 10–11, 2025 | Planned (10b5-1) | Ed Hallen (Director and 10% owner) sold 62,303 shares indirectly (by entity) between Nov 10, 2025 and Nov 11, 2025 at about $30.04 ($1.9M), marked as a 10b5-1 plan trade. Holdings by entity down 8% to 608,518 shares. | SEC filing Filed Nov 12, 2025 |
62 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
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