InsiderTrades

Form 4 for KVYO Klaviyo, Inc.

Accepted 2026-05-20 20:03:53 ET · period of report 2026-05-19 · accession 0001470831-26-000479 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
DT 2026-05-20 20:03 2026-05-19 KVYO Bialecki Andrew Co-CEO, Dir, 10% C - Cnv Deriv — +200.0K 200.0K New —
DT 2026-05-20 20:03 2026-05-19 KVYO Bialecki Andrew Co-CEO, Dir, 10% S - Sale $14.88 -200.0K 0 -100% -$2.98M
DT 2026-05-20 20:03 2026-05-19 KVYO Bialecki Andrew Co-CEO, Dir, 10% C - Cnv Deriv $0.00 -200.0K 66.94M -0.3% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Series A Common Stock 2026-05-19 C A 200,000 — 200,000 D — — (F1) These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 20, 2025. (F2) Each share of the Issuer's Series B Common Stock, par value $0.001 per share ("Series B Common Stock"), is convertible at any time at the option of the holder into one share of the Issuer's Series A Common Stock, par value $0.001 per share ("Series A Common Stock"), and will automatically convert into one share of Series A Common Stock upon the occurrence of certain events as set forth in the Issuer's certificate of incorporation. The Series B Common Stock has no expiration date.
2 Common Series A Common Stock 2026-05-19 S D 200,000 $14.88 0 D — — (F1) These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 20, 2025. (F3) The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $14.68 to $15.41 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
3 Derivative Series B Common Stock 2026-05-19 C D 200,000 $0.00 66,944,118 D — · — to — 200,000 Series A Common Stock (F2) Each share of the Issuer's Series B Common Stock, par value $0.001 per share ("Series B Common Stock"), is convertible at any time at the option of the holder into one share of the Issuer's Series A Common Stock, par value $0.001 per share ("Series A Common Stock"), and will automatically convert into one share of Series A Common Stock upon the occurrence of certain events as set forth in the Issuer's certificate of incorporation. The Series B Common Stock has no expiration date. (F1) These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 20, 2025. (F2) Each share of the Issuer's Series B Common Stock, par value $0.001 per share ("Series B Common Stock"), is convertible at any time at the option of the holder into one share of the Issuer's Series A Common Stock, par value $0.001 per share ("Series A Common Stock"), and will automatically convert into one share of Series A Common Stock upon the occurrence of certain events as set forth in the Issuer's certificate of incorporation. The Series B Common Stock has no expiration date. (F2) Each share of the Issuer's Series B Common Stock, par value $0.001 per share ("Series B Common Stock"), is convertible at any time at the option of the holder into one share of the Issuer's Series A Common Stock, par value $0.001 per share ("Series A Common Stock"), and will automatically convert into one share of Series A Common Stock upon the occurrence of certain events as set forth in the Issuer's certificate of incorporation. The Series B Common Stock has no expiration date.