KLAVIYO INC KVYO
COM SER A · Common Stock · CUSIP 49845K101
B2C CRM and marketing automation platform
- SectorTechnology
- IndustryServices-Prepackaged Software
- HeadquartersBoston, MA
- Founded2012
- Websiteklaviyo.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $34.48. Options: 6 managers hold calls ($1.4m notional), 6 hold puts ($1.2m).
Trends to Q3 2023
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q4 2022 | $0 | $0 | — |
| Q1 2023 | $0 | $0 | — |
| Q2 2023 | $0 | $0 | — |
| Q3 2023 | $1.4m | $1.2m | 0.87 |
Biggest buyers
| SUMMIT PARTNERS L P | New | +49.5m |
| BlackRock Inc. | New | +1.9m |
| Clearbridge Investments, LLC | New | +1.9m |
| ALLIANCEBERNSTEIN L.P. | New | +1.6m |
| PRICE T ROWE ASSOCIATES INC /MD/ | New | +1.5m |
| JPMORGAN CHASE & CO | New | +1.5m |
| VANGUARD GROUP INC | New | +1.4m |
| Blue Owl Capital Holdings LP | New | +1.2m |
| Capital Research Global Investors | New | +1.0m |
| T. Rowe Price Investment Management, Inc. | New | +1.0m |
Biggest sellers
| None |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $686.5k19.9k shares |
| CITADEL ADVISORS LLC | New | $465.8k13.5k shares |
| SIMPLEX TRADING, LLC | New | $200.0k5.8k shares |
| GROUP ONE TRADING LLC | New | $58.6k1.7k shares |
| Cutler Group LLC / CA | New | $1.0k1.2k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | New | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $562.4k16.3k shares |
| SIMPLEX TRADING, LLC | New | $310.0k9.0k shares |
| CITADEL ADVISORS LLC | New | $300.1k8.7k shares |
| GROUP ONE TRADING LLC | New | $48.3k1.4k shares |
| Cutler Group LLC / CA | New | $14.0k1.3k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | New | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| Bialecki Andrew 13G · exempt (held before listing) +1.4 pts · filed 2026-08-05 | 36.5% |
| SHOPIFY INC. 13D · may seek influence +2.0 pts · filed 2026-08-31 | 20.8% |
| Hallen Ed 13G · exempt (held before listing) filed 2025-11-05 | 19.4% |
| SUMMIT PARTNERS L P 13G · exempt (held before listing) -8.8 pts · filed 2025-11-13 | 12.0% |
| Accomplice Fund I, L.P. 13G · exempt (held before listing) filed 2025-05-07 | 10.5% |
| Capital International Investors 13G · institution -1.3 pts · filed 2026-05-14 | 8.0% |
| BlackRock, Inc. 13G · institution new · filed 2026-07-29 | 5.3% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.2% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-07-31 | 5.0% |
Fell to 5% or below in the last year: FMR LLC (4.7%, 2026-08-06), VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC), MORGAN STANLEY (4.1%, 2026-03-06)
Insider purchases and sales in Q3 2023
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2021 | 0 | — | 0 | — | — |
| Q1 2022 | 0 | — | 0 | — | — |
| Q2 2022 | 0 | — | 0 | — | — |
| Q3 2022 | 0 | — | 0 | — | — |
| Q4 2022 | 0 | — | 0 | — | — |
| Q1 2023 | 0 | — | 0 | — | — |
| Q2 2023 | 0 | — | 0 | — | — |
| Q3 2023 | 0 | — | 1 | $339.8k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2023-09-22 | SUMMIT PARTNERS L P +5 10% owner · See footnote | Sold | $139.3m4.9m shares |
| 2023-09-22 | Fagnan Jeff +3 10% owner | Sold | $50.1m1.8m shares |
| 2023-09-22 | Astral Capital ABEH, LLC +2 10% owner | Sold | $23.1m816.9k shares |
| 2023-09-22 | Ceran Jennifer Director | Sold | $339.8k12.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q3 2023
| Manager | Shares | Change |
|---|---|---|
| SUMMIT PARTNERS L P 58.54% of their portfolio | 49.5m $1.7bn | New |
| BlackRock Inc. 0.00% of their portfolio | 1.9m $64.6m | New |
| Clearbridge Investments, LLC 0.06% of their portfolio | 1.9m $64.3m | New |
| ALLIANCEBERNSTEIN L.P. 0.02% of their portfolio | 1.6m $54.2m | New |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio | 1.5m $53.1m | New |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 1.5m $52.2m | New |
| VANGUARD GROUP INC 0.00% of their portfolio | 1.4m $49.8m | New |
| Blue Owl Capital Holdings LP 29.42% of their portfolio | 1.2m $38.1m | New |
| Capital Research Global Investors 0.01% of their portfolio | 1.0m $34.6m | New |
| T. Rowe Price Investment Management, Inc. 0.02% of their portfolio | 1.0m $34.5m | New |
| FMR LLC 0.00% of their portfolio | 991.4k $34.2m | New |
| Avenir Management Company, LLC 75.91% of their portfolio | 963.4k $33.2m | New |
| STEADFAST CAPITAL MANAGEMENT LP 0.78% of their portfolio | 840.4k $29.0m | New |
| FRANKLIN RESOURCES INC 0.01% of their portfolio | 706.6k $24.4m | New |
| Capital World Investors 0.00% of their portfolio | 700.0k $24.1m | New |
| NORGES BANK 0.00% of their portfolio | 657.7k $22.7m | Not comparable |
| SANDS CAPITAL MANAGEMENT, LLC 0.08% of their portfolio | 639.0k $22.0m | New |
| JANUS HENDERSON GROUP PLC 0.01% of their portfolio | 500.0k $17.3m | New |
| Dragoneer Investment Group, LLC 0.40% of their portfolio | 500.0k $17.2m | New |
| Sands Capital Alternatives, LLC 4.79% of their portfolio | 469.4k $16.2m | New |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 429.2k $14.8m | New |
| Alyeska Investment Group, L.P. 0.10% of their portfolio | 422.1k $14.6m | New |
| MORGAN STANLEY 0.00% of their portfolio | 397.1k $13.7m | New |
| Balyasny Asset Management L.P. 0.03% of their portfolio | 355.8k $12.3m | New |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 310.6k $10.7m | New |
| LORD, ABBETT & CO. LLC 0.02% of their portfolio | 296.3k $10.2m | New |
| VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 290.8k $10.0m | New |
| BANK OF MONTREAL /CAN/ 0.00% of their portfolio | 284.0k $9.8m | New |
| Whale Rock Capital Management LLC 0.17% of their portfolio | 250.0k $8.6m | New |
| GREENOAKS LLC 1.07% of their portfolio | 250.0k $8.6m | New |
| GLYNN CAPITAL MANAGEMENT LLC 1.84% of their portfolio | 245.7k $8.5m | New |
| CAAS CAPITAL MANAGEMENT LP 1.73% of their portfolio | 226.0k $7.8m | New |
| GILDER GAGNON HOWE & CO LLC 0.11% of their portfolio | 201.8k $7.0m | New |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 200.0k $6.9m | New |
| Telemark Asset Management, LLC 1.05% of their portfolio | 200.0k $6.9m | New |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 200.0k $6.9m | New |
| Monashee Investment Management LLC 2.32% of their portfolio | 160.7k $5.5m | New |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 146.3k $5.0m | New |
| CAPSTONE INVESTMENT ADVISORS, LLC 0.09% of their portfolio | 100.0k $3.5m | New |
| Caisse de depot et placement du Quebec 0.01% of their portfolio | 100.0k $3.5m | New |
| Point72 Middle East FZE 0.17% of their portfolio | 80.5k $2.8m | New |
| MARK ASSET MANAGEMENT LP 0.52% of their portfolio | 80.0k $2.8m | New |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.01% of their portfolio | 80.0k $2.8m | New |
| Rokos Capital Management LLP 0.09% of their portfolio | 75.0k $2.6m | New |
| MARSHALL WACE, LLP 0.01% of their portfolio | 71.0k $2.4m | New |
| Granahan Investment Management, LLC 0.09% of their portfolio | 70.2k $2.4m | New |
| BROWN ADVISORY INC 0.00% of their portfolio | 69.0k $2.4m | New |
| FIRST TRUST ADVISORS LP 0.00% of their portfolio | 68.6k $2.4m | New |
| Invesco Ltd. 0.00% of their portfolio | 65.4k $2.3m | New |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 64.2k $2.2m | New |
| Squarepoint Ops LLC 0.01% of their portfolio | 57.8k $2.0m | New |
| NEUBERGER BERMAN GROUP LLC 0.00% of their portfolio | 57.8k $2.0m | New |
| MYDA Advisors LLC 0.74% of their portfolio | 57.0k $2.0m | New |
| Tabor Asset Management, LP 1.00% of their portfolio | 55.4k $1.9m | New |
| Man Group plc 0.01% of their portfolio | 47.0k $1.6m | New |
| Hudson Bay Capital Management LP 0.01% of their portfolio | 40.0k $1.4m | New |
| Avala Global LP 0.13% of their portfolio | 40.0k $1.4m | New |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 37.4k $1.3m | New |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 35.0k $1.2m | New |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 35.0k $1.2m | New |
| TIGER GLOBAL MANAGEMENT LLC 0.01% of their portfolio | 35.0k $1.2m | New |
| Ghisallo Capital Management LLC 0.12% of their portfolio | 35.0k $1.2m | New |
| Davidson Kempner Capital Management LP 0.02% of their portfolio | 34.0k $1.2m | New |
| TUDOR INVESTMENT CORP ET AL 0.02% of their portfolio | 33.6k $1.2m | New |
| WINTON GROUP Ltd 0.09% of their portfolio | 31.7k $1.1m | New |
| Allspring Global Investments Holdings, LLC 0.00% of their portfolio | 31.5k $1.1m | New |
| Lighthouse Investment Partners, LLC 0.06% of their portfolio | 30.0k $1.0m | New |
| SOROS FUND MANAGEMENT LLC 0.02% of their portfolio | 23.0k $793.5k | New |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 21.1k $727.3k | New |
| Zimmer Partners, LP 0.02% of their portfolio | 21.0k $724.5k | New |
| Blackstone Inc. 0.00% of their portfolio | 20.0k $690.0k | New |
| SEVEN GRAND MANAGERS, LLC 0.92% of their portfolio | 20.0k $690.0k | New |
| Amundi 0.00% of their portfolio | 17.4k $549.3k | New |
| Weiss Asset Management LP 0.04% of their portfolio | 15.0k $517.5k | New |
| Laurion Capital Management LP 0.01% of their portfolio | 15.0k $517.5k | New |
| Sandia Investment Management LP 0.14% of their portfolio | 15.0k $517.5k | New |
| Virtu Financial LLC 0.05% of their portfolio | 14.2k $490.0k | New |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 12.4k $429.2k | New |
| Alberta Investment Management Corp 0.00% of their portfolio | 11.3k $391.4k | New |
| Pictet Asset Management Holding SA 0.00% of their portfolio | 11.2k $387.4k | First filing |
| Verition Fund Management LLC 0.00% of their portfolio | 10.0k $345.0k | New |
| Woodline Partners LP 0.00% of their portfolio | 8.0k $277.4k | New |
| SIMPLEX TRADING, LLC 0.01% of their portfolio | 7.9k $273.0k | New |
| Legal & General Group Plc 0.00% of their portfolio | 5.0k $172.2k | New |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 5.0k $172.5k | New |
| Skylands Capital, LLC 0.03% of their portfolio | 5.0k $172.5k | New |
| Ensign Peak Advisors, Inc 0.00% of their portfolio | 4.7k $162.9k | New |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 2.4k $84.0k | New |
| Hidden Lake Asset Management LP 0.08% of their portfolio | 2.0k $69.0k | New |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 1.9k $65.0k | New |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 1.0k $34.7k | New |
| Columbus Hill Capital Management, L.P. 0.01% of their portfolio | 500 $17.2k | New |
| FNY Investment Advisers, LLC 0.00% of their portfolio | 220 $7.0k | New |
| BOURGEON CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 150 $5.2k | New |
| COMERICA BANK 0.00% of their portfolio | 98 $3.4k | New |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 20 $690 | New |
| PNC Financial Services Group, Inc. 0.00% of their portfolio | 19 $656 | New |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio | 0 $0 | New |