SEC Form 4Coverage since Aug 13, 2025Open-market trades only
$KVYO insider trading
Over the last 12 months, Klaviyo insiders reported 1 buy totaling $300K and 51 sales totaling $205.4M across SEC Form 4 filings. 96% of those filings were made under pre-arranged 10b5-1 trading plans.
- Bought · 12m
- $300K 1 event
- Sold · 12m
- $205.4M 51 events
- Events · 12m
- 52 Form 4 filings, grouped
- Insiders · 12m
- 9 distinct reporters
- 10b5-1 share
- 96% of events, not dollars
Side
Price · $KVYO · 3Mvia TradingView
Top insiders · 12m
Bialecki AndrewCo-Chief Executive Officer13× · $49.2M
Bialecki AndrewChief Executive Officer11× · $53.0M
Whalen AmandaChief Financial Officer10× · $3.1M
Edmond LandonChief Legal Officer7× · $3.1M
Hallen Ed—4× · $7.5M
All insider trades
50 of 67 events
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Sep 11, 2026 | St. Ledger SusanD | ▼ Sale | 2,328 | $15.93 | $37K | -9% | plan |
| Aug 31, 2026 | Hallen EdD·10% | ▼ Sale | 98,782 | $20.48 | $2.0M | -17.5% | plan · 2 tranches · indirect |
| Aug 31, 2026 | Edmond LandonChief Legal Officer · O | ▼ Sale | 61,576 | $20.07 | $1.2M | -11.4% | plan · 2 tranches |
| Aug 14, 2026 | Whalen AmandaChief Financial Officer · O | ▼ Sale | 14,000 | $18.47 | $259K | -1.7% | plan |
| Aug 11, 2026 | SUMMIT PARTNERS L P10% | ▼ Sale | 5,000,000 | $17.71 | $88.5M | -100% | indirect |
| Jul 16, 2026 | Whalen AmandaChief Financial Officer · O | ▼ Sale | 14,000 | $17.75 | $249K | -1.6% | plan |
| Jun 18, 2026 | Whalen AmandaChief Financial Officer · O | ▼ Sale | 14,000 | $13.23 | $185K | -1.6% | plan |
| May 26, 2026 | Bialecki AndrewCo-Chief Executive Officer · O·D·10% | ▼ Sale | 212,529 | $14.61 | $3.1M | -100% | plan |
| Apr 20, 2026 | Edmond LandonChief Legal Officer · O | ▼ Sale | 9,623 | $20 | $192K | -1.6% | plan |
| Apr 16, 2026 | Whalen AmandaChief Financial Officer · O | ▼ Sale | 14,000 | $18.54 | $260K | -1.5% | plan |
| Apr 14, 2026 | Bialecki AndrewCo-Chief Executive Officer · O·D·10% | ▼ Sale | 200,000 | $17.19 | $3.4M | -100% | plan · 2 tranches |
| Apr 7, 2026 | Bialecki AndrewCo-Chief Executive Officer · O·D·10% | ▼ Sale | 200,000 | $18.63 | $3.7M | -100% | plan |
| Mar 31, 2026 | Bialecki AndrewCo-Chief Executive Officer · O·D·10% | ▼ Sale | 200,000 | $19.42 | $3.9M | -100% | plan |
| Mar 24, 2026 | Bialecki AndrewCo-Chief Executive Officer · O·D·10% | ▼ Sale | 200,000 | $18.17 | $3.6M | -100% | plan |
| Mar 17, 2026 | Bialecki AndrewCo-Chief Executive Officer · O·D·10% | ▼ Sale | 200,000 | $19.37 | $3.9M | -100% | plan · 2 tranches |
| Mar 12, 2026 | Edmond LandonChief Legal Officer · O | ▼ Sale | 14,366 | $20.15 | $289K | -4.4% | plan |
| Mar 12, 2026 | Whalen AmandaChief Financial Officer · O | ▼ Sale | 14,000 | $19.58 | $274K | -3.3% | plan · 2 tranches |
| Mar 10, 2026 | Bialecki AndrewCo-Chief Executive Officer · O·D·10% | ▼ Sale | 206,827 | $19.96 | $4.1M | -100% | plan · 2 tranches |
| Mar 5, 2026 | Edmond LandonChief Legal Officer · O | ▼ Sale | 15,093 | $20.16 | $304K | -4.4% | plan |
| Mar 3, 2026 | Bialecki AndrewCo-Chief Executive Officer · O·D·10% | ▼ Sale | 200,000 | $18.64 | $3.7M | -100% | plan · 2 tranches |
| Feb 24, 2026 | Bialecki AndrewCo-Chief Executive Officer · O·D·10% | ▼ Sale | 200,000 | $16.76 | $3.4M | -100% | plan · 2 tranches |
| Feb 13, 2026 | Whalen AmandaChief Financial Officer · O | ▼ Sale | 14,000 | $18.88 | $264K | -3.1% | plan · 2 tranches |
| Feb 12, 2026 | Ceran JenniferD | ▲ Buy | 16,339 | $18.38 | $300K | +113.8% | — |
| Jan 27, 2026 | Bialecki AndrewCo-Chief Executive Officer · O·D·10% | ▼ Sale | 155,219 | $25.33 | $3.9M | -100% | plan · 2 tranches |
| Jan 20, 2026 | Bialecki AndrewCo-Chief Executive Officer · O·D·10% | ▼ Sale | 167,926 | $24.16 | $4.1M | -100% | plan · 2 tranches |
| Jan 15, 2026 | Whalen AmandaChief Financial Officer · O | ▼ Sale | 14,000 | $25.83 | $362K | -3.1% | plan · 2 tranches |
| Jan 15, 2026 | Edmond LandonChief Legal Officer · O | ▼ Sale | 10,000 | $25.83 | $258K | -2.8% | plan · 2 tranches |
| Jan 13, 2026 | Bialecki AndrewCo-Chief Executive Officer · O·D·10% | ▼ Sale | 140,646 | $27.41 | $3.9M | -100% | plan · 2 tranches |
| Jan 7, 2026 | Bialecki AndrewCo-Chief Executive Officer · O·D·10% | ▼ Sale | 154,153 | $29.03 | $4.5M | -100% | plan · 3 tranches |
| Dec 22, 2025 | Bialecki AndrewChief Executive Officer · O·D·10% | ▼ Sale | 100,000 | $32.97 | $3.3M | -100% | plan · 2 tranches |
| Dec 18, 2025 | Edmond LandonChief Legal Officer · O | ▼ Sale | 14,190 | $31.38 | $445K | -3.9% | plan · 2 tranches |
| Dec 18, 2025 | Whalen AmandaChief Financial Officer · O | ▼ Sale | 14,000 | $31.38 | $439K | -3% | plan · 2 tranches |
| Dec 17, 2025 | Hallen EdD·10% | ▼ Sale | 117,550 | $30.36 | $3.6M | -18.3% | plan · 2 tranches · indirect |
| Dec 17, 2025 | Bialecki AndrewChief Executive Officer · O·D·10% | ▼ Sale | 238,648 | $29.61 | $7.1M | -100% | plan · 2 tranches |
| Dec 15, 2025 | Rowland Stephen EricPresident · O | ▼ Sale | 7,104 | $29.45 | $209K | -1.6% | plan · 2 tranches |
| Dec 15, 2025 | Hallen EdD·10% | ▼ Sale | 757 | $30.15 | $23K | -0.1% | plan · 2 tranches · indirect |
| Dec 11, 2025 | Bialecki AndrewChief Executive Officer · O·D·10% | ▼ Sale | 231,362 | $29.71 | $6.9M | -100% | plan · 4 tranches |
| Dec 4, 2025 | Bialecki AndrewChief Executive Officer · O·D·10% | ▼ Sale | 142,997 | $28.63 | $4.1M | -100% | plan · 2 tranches |
| Nov 24, 2025 | Bialecki AndrewChief Executive Officer · O·D·10% | ▼ Sale | 144,717 | $27.76 | $4.0M | -100% | plan |
| Nov 20, 2025 | Edmond LandonChief Legal Officer · O | ▼ Sale | 14,394 | $27.59 | $397K | -3.7% | plan · 2 tranches |
| Nov 18, 2025 | Bialecki AndrewChief Executive Officer · O·D·10% | ▼ Sale | 147,329 | $27.16 | $4.0M | -100% | plan |
| Nov 17, 2025 | Rowland Stephen EricPresident · O | ▼ Sale | 7,104 | $27.39 | $195K | -1.6% | plan |
| Nov 17, 2025 | Galvin CarmelChief People Officer · O | ▼ Sale | 11,156 | $27.51 | $307K | -1.7% | plan · 2 tranches |
| Nov 14, 2025 | Whalen AmandaChief Financial Officer · O | ▼ Sale | 15,000 | $28.6 | $429K | -3% | plan · 2 tranches |
| Nov 11, 2025 | Bialecki AndrewChief Executive Officer · O·D·10% | ▼ Sale | 140,464 | $29.74 | $4.2M | -100% | plan |
| Nov 11, 2025 | Hallen EdD·10% | ▼ Sale | 62,303 | $30.04 | $1.9M | -9.3% | plan · 4 tranches · indirect |
| Oct 15, 2025 | Rowland Stephen EricPresident · O | ▼ Sale | 7,105 | $24.35 | $173K | -1.6% | plan |
| Oct 14, 2025 | Bialecki AndrewChief Executive Officer · O·D·10% | ▼ Sale | 163,331 | $24.37 | $4.0M | -100% | plan |
| Oct 10, 2025 | Whalen AmandaChief Financial Officer · O | ▼ Sale | 15,000 | $25.03 | $375K | -3% | plan · 2 tranches |
| Oct 7, 2025 | Bialecki AndrewChief Executive Officer · O·D·10% | ▼ Sale | 159,508 | $25.3 | $4.0M | -100% | plan · 2 tranches |
Every $KVYO filing on this page is one API call away
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Klaviyo filings can reach your inbox instead.
About Form 4
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $KVYO feed.