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 ($686.2k this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $41.24. Options: 16 managers hold calls ($89.6m notional), 14 hold puts ($44.5m).
Trends to Q4 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2023 | 98 |
| Q4 2023 | 103 |
| Q1 2024 | 133 |
| Q2 2024 | 133 |
| Q3 2024 | 157 |
| Q4 2024 | 185 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2023 | 73 | 50 |
| Q1 2024 | 105 | 41 |
| Q2 2024 | 73 | 62 |
| Q3 2024 | 87 | 69 |
| Q4 2024 | 110 | 73 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q1 2024 | $13.1m | $16.1m | 1.23 |
| Q2 2024 | $13.5m | $14.8m | 1.10 |
| Q3 2024 | $70.2m | $15.8m | 0.23 |
| Q4 2024 | $89.6m | $44.5m | 0.50 |
Biggest buyers
| Focus Partners Wealth | New | +1.9m |
| 1832 Asset Management L.P. | New | +1.6m |
| FMR LLC | Added | +1.2m |
| D. E. Shaw & Co., Inc. | Added | +858.4k |
| LORD, ABBETT & CO. LLC | New | +748.1k |
| AMERIPRISE FINANCIAL INC | Added | +684.0k |
| VANGUARD GROUP INC | Added | +646.6k |
| FRANKLIN RESOURCES INC | Added | +636.0k |
| VOYA INVESTMENT MANAGEMENT LLC | Added | +592.9k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | New | +478.9k |
Biggest sellers
| SUMMIT PARTNERS L P | Reduced | -5.6m |
| Capital Research Global Investors | Reduced | -2.3m |
| FULLER & THALER ASSET MANAGEMENT, INC. | Reduced | -1.3m |
| JPMORGAN CHASE & CO | Reduced | -851.6k |
| ALLIANCEBERNSTEIN L.P. | Reduced | -686.2k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -577.5k |
| GLYNN CAPITAL MANAGEMENT LLC | Reduced | -506.8k |
| Granger Management LLC | Sold out | -342.5k |
| Mayflower Financial Advisors, LLC | Reduced | -253.5k |
| Capital World Investors | Sold out | -240.4k |
Biggest calls
| Twin Tree Management, LP | Added | $25.7m623.7k shares |
| JANE STREET GROUP, LLC | Reduced | $18.2m441.3k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $14.6m354.0k shares |
| CITADEL ADVISORS LLC | Reduced | $9.3m226.7k shares |
| SIMPLEX TRADING, LLC | Reduced | $5.0m121.9k shares |
| Walleye Trading LLC | Added | $3.9m94.6k shares |
| GOLDMAN SACHS GROUP INC | New | $3.7m90.0k shares |
| WOLVERINE TRADING, LLC | Added | $3.1m73.9k shares |
| IMC-Chicago, LLC | Added | $2.3m56.4k shares |
| Walleye Capital LLC | Added | $1.2m29.5k shares |
Biggest puts
| CITADEL ADVISORS LLC | Added | $14.6m352.9k shares |
| GOLDMAN SACHS GROUP INC | New | $12.4m300.0k shares |
| Twin Tree Management, LP | New | $8.5m207.0k shares |
| SIMPLEX TRADING, LLC | Added | $3.0m72.9k shares |
| IMC-Chicago, LLC | Added | $1.5m35.7k shares |
| WOLVERINE TRADING, LLC | Added | $1.2m29.0k shares |
| TUDOR INVESTMENT CORP ET AL | New | $1.2m28.9k shares |
| GROUP ONE TRADING LLC | Added | $631.0k15.3k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $548.5k13.3k shares |
| Walleye Trading LLC | Added | $292.8k7.1k 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 Q4 2024
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 |
|---|---|---|---|---|---|
| Q1 2023 | 0 | — | 0 | — | — |
| Q2 2023 | 0 | — | 0 | — | — |
| Q3 2023 | 0 | — | 1 | $339.8k | — |
| Q4 2023 | 0 | — | 0 | — | — |
| Q1 2024 | 0 | — | 1 | $865.7k | — |
| Q2 2024 | 0 | — | 3 | $1.4m | $1.4m |
| Q3 2024 | 0 | — | 4 | $12.9m | $12.9m |
| Q4 2024 | 0 | — | 3 | $4.9m | $4.9m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-12-16 | Rowland Stephen Eric President | Sold plan | $183.7k4.5k shares |
| 2024-12-13 | Whalen Amanda Chief Financial Officer | Sold plan | $590.9k15.0k shares |
| 2024-12-09 | SUMMIT PARTNERS L P +5 10% owner · See footnotes | Sold | $82.2m2.1m shares |
| 2024-12-09 | Whalen Amanda Chief Financial Officer | Sold plan | $42.1k1.1k shares |
| 2024-12-06 | Whalen Amanda Chief Financial Officer | Sold plan | $959.0k23.9k shares |
| 2024-11-18 | Edmond Landon Chief Legal Officer | Sold plan | $1.4m40.0k shares |
| 2024-11-18 | Whalen Amanda Chief Financial Officer | Sold plan | $518.4k15.0k shares |
| 2024-11-18 | Rowland Stephen Eric President | Sold plan | $156.8k4.5k shares |
| 2024-11-14 | SUMMIT PARTNERS L P +5 10% owner · See footnotes | Sold | $114.1m3.2m shares |
| 2024-11-13 | Fagnan Jeff 10% owner · By Tailwater Investments, LLC | Bought | $501.9k13.5k shares |
| 2024-10-15 | Rowland Stephen Eric President | Sold plan | $673.7k18.1k shares |
| 2024-10-04 | Whalen Amanda Chief Financial Officer | Sold plan | $353.6k10.0k 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, Q4 2024
| Manager | Shares | Change |
|---|---|---|
| SUMMIT PARTNERS L P 75.40% of their portfolio | 40.8m $1.7bn | Reduced -5.6m |
| VANGUARD GROUP INC 0.01% of their portfolio | 7.7m $318.4m | Added +646.6k |
| ALLIANCEBERNSTEIN L.P. 0.06% of their portfolio | 4.0m $164.8m | Reduced -686.2k |
| Whale Rock Capital Management LLC 1.89% of their portfolio | 3.9m $159.5m | Added +267.8k |
| Sands Capital Alternatives, LLC 31.13% of their portfolio | 3.5m $143.1m | Reduced -44.6k |
| Capital Research Global Investors 0.03% of their portfolio | 3.0m $123.8m | Reduced -2.3m |
| Bank of New York Mellon Corp 0.02% of their portfolio | 2.9m $120.7m | Added +140.1k |
| FEDERATED HERMES, INC. 0.24% of their portfolio | 2.7m $110.1m | Reduced -214.5k |
| GREENOAKS LLC 5.19% of their portfolio | 2.3m $95.5m | Unchanged |
| Clearbridge Investments, LLC 0.07% of their portfolio | 2.2m $89.4m | Added +19.6k |
| BlackRock, Inc. 0.00% of their portfolio | 2.1m $86.8m | Added +410.9k |
| GOLDMAN SACHS GROUP INC 0.02% of their portfolio | 2.1m $84.9m | Added +192.6k |
| FRANKLIN RESOURCES INC 0.02% of their portfolio | 1.9m $80.2m | Added +636.0k |
| Focus Partners Wealth 0.10% of their portfolio | 1.9m $77.7m | New |
| VOYA INVESTMENT MANAGEMENT LLC 0.08% of their portfolio | 1.9m $76.4m | Added +592.9k |
| 1832 Asset Management L.P. 0.12% of their portfolio | 1.6m $66.9m | New |
| D. E. Shaw & Co., Inc. 0.06% of their portfolio | 1.3m $54.0m | Added +858.4k |
| FMR LLC 0.00% of their portfolio | 1.3m $52.5m | Added +1.2m |
| SANDS CAPITAL MANAGEMENT, LLC 0.15% of their portfolio | 1.2m $51.0m | Reduced -190.6k |
| AMERICAN CENTURY COMPANIES INC 0.03% of their portfolio | 1.2m $49.9m | Added +357.2k |
| Claro Advisors Inc. 6.58% of their portfolio | 1.2m $48.6m | Reduced -57.5k |
| TWO SIGMA INVESTMENTS, LP 0.11% of their portfolio | 1.1m $46.4m | Added +389.8k |
| MORGAN STANLEY 0.00% of their portfolio | 1.1m $45.2m | Reduced -238.2k |
| Blue Owl Capital Holdings LP 10.25% of their portfolio | 1.1m $44.5m | Reduced -119.5k |
| TWO SIGMA ADVISERS, LP 0.10% of their portfolio | 997.9k $41.2m | Added +324.4k |
| Morangie Management LLC 33.25% of their portfolio | 990.3k $40.8m | First filing |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 982.1k $40.5m | Added +684.0k |
| FIRST TRUST ADVISORS LP 0.03% of their portfolio | 945.7k $39.0m | Added +197.3k |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.13% of their portfolio | 922.8k $38.1m | Added +125.4k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 882.5k $36.4m | Added +96.3k |
| LORD, ABBETT & CO. LLC 0.10% of their portfolio | 748.1k $30.9m | New |
| GLYNN CAPITAL MANAGEMENT LLC 6.35% of their portfolio | 652.8k $26.9m | Reduced -506.8k |
| Balyasny Asset Management L.P. 0.06% of their portfolio | 613.2k $25.3m | Added +184.7k |
| NORGES BANK 0.00% of their portfolio | 611.0k $25.2m | Unchanged |
| RENAISSANCE TECHNOLOGIES LLC 0.03% of their portfolio | 562.3k $23.2m | Reduced -21.8k |
| STATE STREET CORP 0.00% of their portfolio | 526.7k $21.7m | Added +91.2k |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 499.3k $20.6m | Added +86.1k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.02% of their portfolio | 478.9k $19.8m | New |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 464.5k $19.2m | Added +40.1k |
| Mayflower Financial Advisors, LLC 2.66% of their portfolio | 431.4k $17.8m | Reduced -253.5k |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.04% of their portfolio | 419.6k $17.3m | New |
| HighTower Advisors, LLC 0.02% of their portfolio | 400.8k $16.5m | Reduced -1.7k |
| MARSHALL WACE, LLP 0.02% of their portfolio | 394.0k $16.2m | Reduced -52.9k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 334.6k $13.8m | New |
| OSTERWEIS CAPITAL MANAGEMENT INC 0.64% of their portfolio | 333.5k $13.8m | Added +69.0k |
| NEEDHAM INVESTMENT MANAGEMENT LLC 1.00% of their portfolio | 315.0k $13.0m | Unchanged |
| WCM INVESTMENT MANAGEMENT, LLC 0.03% of their portfolio | 305.4k $12.8m | New |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 304.1k $12.5m | Reduced -46.0k |
| Watchtower Advisors, LP 6.90% of their portfolio | 295.7k $12.2m | New |
| TUDOR INVESTMENT CORP ET AL 0.13% of their portfolio | 294.1k $12.1m | Added +231.2k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 294.1k $12.1m | First filing |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 276.7k $11.4m | Added +21.4k |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.02% of their portfolio | 250.0k $10.3m | Reduced -200.0k |
| PNC Financial Services Group, Inc. 0.01% of their portfolio | 217.3k $9.0m | Unchanged |
| BLAIR WILLIAM & CO/IL 0.02% of their portfolio | 206.2k $8.5m | Reduced -744 |
| ALKEON CAPITAL MANAGEMENT LLC 0.05% of their portfolio | 200.0k $8.2m | Reduced -100.0k |
| Cynosure Group, LLC 1.20% of their portfolio | 194.6k $8.0m | Unchanged |
| SIERRA SUMMIT ADVISORS LLC 1.60% of their portfolio | 192.8k $8.0m | New |
| ACADIAN ASSET MANAGEMENT LLC 0.02% of their portfolio | 189.2k $7.8m | New |
| NORTHERN TRUST CORP 0.00% of their portfolio | 187.9k $7.7m | Added +26.1k |
| Pathstone Holdings, LLC 0.03% of their portfolio | 168.6k $7.0m | Added +6.4k |
| Polar Capital Holdings Plc 0.04% of their portfolio | 168.1k $6.9m | Reduced -148.6k |
| UBS Group AG 0.00% of their portfolio | 148.1k $6.1m | Added +91.5k |
| Integrated Wealth Concepts LLC 0.07% of their portfolio | 144.6k $6.0m | Added +84 |
| Nicholas Investment Partners, LP 0.51% of their portfolio | 140.6k $5.8m | Added +54.5k |
| Lisanti Capital Growth, LLC 1.31% of their portfolio | 132.5k $5.5m | Reduced -23.3k |
| Renaissance Capital LLC 3.32% of their portfolio | 122.6k $5.1m | Added +44.2k |
| Swiss National Bank 0.00% of their portfolio | 114.2k $4.7m | Added +4.3k |
| PDT Partners, LLC 0.41% of their portfolio | 111.9k $4.6m | Added +59.8k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 105.2k $4.3m | Added +45.5k |
| DIKER MANAGEMENT LLC 3.57% of their portfolio | 100.0k $4.1m | Reduced -48.4k |
| Telemark Asset Management, LLC 0.41% of their portfolio | 100.0k $4.1m | New |
| Snowden Capital Advisors LLC 0.12% of their portfolio | 96.5k $4.0m | New |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 94.9k $3.9m | Added +93.6k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 92.3k $3.8m | Reduced -577.5k |
| CABOT WEALTH MANAGEMENT INC 0.47% of their portfolio | 89.3k $3.7m | Reduced -1.2k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 84.1k $3.5m | Reduced -851.6k |
| G2 Investment Partners Management LLC 0.80% of their portfolio | 75.0k $3.1m | Reduced -5.2k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 72.8k $3.0m | Added +57.3k |
| Mariner, LLC 0.00% of their portfolio | 71.7k $3.0m | Reduced -32 |
| Cerity Partners LLC 0.01% of their portfolio | 70.5k $2.9m | Reduced -24.6k |
| Investors Towarzystwo Funduszy Inwestycyjnych Spolka Akcyjna 1.16% of their portfolio | 69.8k $2.9m | New |
| Liontrust Investment Partners LLP 0.04% of their portfolio | 67.6k $2.8m | New |
| Trexquant Investment LP 0.03% of their portfolio | 64.9k $2.7m | Reduced -38.3k |
| Dakota Wealth Management 0.06% of their portfolio | 63.3k $2.6m | Unchanged |
| Kodai Capital Management LP 0.10% of their portfolio | 60.5k $2.5m | New |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 58.5k $2.4m | Added +52.4k |
| Legal & General Group Plc 0.00% of their portfolio | 52.3k $2.2m | Added +702 |
| IEQ CAPITAL, LLC 0.02% of their portfolio | 51.0k $2.1m | Added +40.2k |
| Squarepoint Ops LLC 0.01% of their portfolio | 50.9k $2.1m | New |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 50.0k $2.1m | Added +864 |
| B. Metzler seel. Sohn & Co. AG 0.02% of their portfolio | 46.9k $1.9m | New |
| Washington Harbour Partners LP 3.33% of their portfolio | 43.5k $1.8m | New |
| Engineers Gate Manager LP 0.03% of their portfolio | 43.3k $1.8m | Reduced -73.5k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 43.2k $1.8m | New |
| Legato Capital Management LLC 0.22% of their portfolio | 40.0k $1.7m | Added +7.1k |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 40.0k $1.6m | Added +40.0k |
| OAK RIDGE INVESTMENTS LLC 0.13% of their portfolio | 39.9k $1.6m | New |
| PIER 88 INVESTMENT PARTNERS LLC 0.31% of their portfolio | 38.7k $1.6m | Added +11.4k |
| Penserra Capital Management LLC 0.03% of their portfolio | 37.9k $1.6m | New |