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Klaviyo, Inc. 13F holders

277 funds reported a position in Klaviyo, Inc. in their 13F for the quarter ended 30 June 2026, together 145.3 million shares worth $2.19 billion. Against the quarter before, 63 opened a position, 101 added, 75 trimmed and 57 sold out; together they sold a net 12.6 million shares. The largest holders: Summit Partners L P, Capital International Investors and Vanguard Portfolio Management LLC.

Funds holding277+11 on Q1 2026
Shares they held145.3Mworth $2.19 billion
Net sold on the quarter12.6M sharesabout $190.6 million at the funds' values
Funds buying to selling164 to 132opened or added, to cut or sold
Opened 63Added 101Held 36Trimmed 75Sold out 57
Opened: 63 fundsAdded: 101 fundsHeld: 36 fundsTrimmed: 75 fundsSold out: 57 funds

What each fund did in KVYO against its 13F for the quarter before; a change under 0.1% of a holding counts as held

Q3 2024: 156 funds, 113.2 million shares156Q3 2024Q4 2024: 183 funds, 115.0 million shares183Q4 2024Q1 2025: 217 funds, 118.4 million shares217Q1 2025Q2 2025: 254 funds, 134.2 million shares254Q2 2025Q3 2025: 276 funds, 143.4 million shares276Q3 2025Q4 2025: 261 funds, 161.2 million shares261Q4 2025Q1 2026: 266 funds, 157.4 million shares266Q1 2026Q2 2026: 277 funds, 145.3 million shares277Q2 2026

Funds reporting a position in KVYO in their 13F, each quarter; hover a bar for the shares they held

Filed so far for the quarter to 30 September 2026

2,671 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 37 reported a position in Klaviyo, Inc.: 7 opened one, 13 added, 6 trimmed and 5 sold out, a net 361,786 shares bought.

The largest moves in the name among the funds that have filed, against each fund's previous 13F.

The well-known funds

Of the 44 funds followed here, 9 reported a position in Klaviyo, Inc. in a 13F for the quarter ended 30 June 2026. The largest: FMR LLC, 6.6 million shares worth $99.1 million, 0.0% of its reported book. Sold out: Capital Research Global Investors, Alyeska. In the quarter, 3 funds added or opened a position and 7 trimmed or sold out; together they sold a net 6.4 million shares, about $96.0 million at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.

FundSharesValueOf its bookChange on the quarterStatusQuarter endedFiling
FMR LLC6,566,155$99.1 million0.0%-3,220,927trimmed30 June 202613F
Whale Rock Capital Management5,528,166$83.5 million0.7%-1,297,040trimmed30 June 202613F
Millennium Management4,117,367$62.2 million0.0%+1,769,132added30 June 202613F
Geode Capital Management2,476,695$37.4 million0.0%+703,145added30 June 202613F
Two Sigma Investments1,767,900$26.7 million0.0%-1,123,990trimmed30 June 202613F
Renaissance Technologies1,560,244$23.6 million0.0%-80,600trimmed30 June 202613F
Citadel Advisors1,172,112$17.7 million0.0%+9,733added30 June 202613F
Point72 Asset Management1,114,467$16.8 million0.0%-557,892trimmed30 June 202613F
Norges Bank27,514$415,4610.0%held30 June 202613F
Capital Research Global Investors0$00.0%-1,348,445exited30 June 202613F
Alyeska0$00.0%-1,208,979exited30 June 202613F
Value is what the fund reported.
Read moreChange is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.

The largest holders

FundSharesShare of allValueOf its bookChange in sharesFiling
Summit Partners L P18,852,77812.97%$284.7 million46.75%no change13F
Capital International Investors10,482,9717.21%$158.3 million0.03%-1,220,88813F
Vanguard Portfolio Management LLC7,692,7745.29%$116.2 million0.01%+160,85913F
BlackRock, Inc.7,612,0785.24%$114.9 million0.00%+3,257,74313F
FMR LLC6,566,1554.52%$99.1 million0.00%-3,220,92713F
Vanguard Capital Management LLC5,990,6604.12%$90.5 million0.00%-172,06013F
Whale Rock Capital Management LLC5,528,1663.80%$83.5 million0.67%-1,297,04013F
Wellington Management Group LLP5,049,4143.47%$76.2 million0.01%-430,02913F
Morgan Stanley4,444,6843.06%$67.1 million0.00%-623,00613F
Millennium Management LLC4,117,3672.83%$62.2 million0.04%+1,769,13213F
Sands Capital Alternatives, LLC3,928,1462.70%$59.3 million9.67%+278,46813F
Bank of America Corp.3,819,5452.63%$57.7 million0.00%+2,132,77513F
Geode Capital Management, LLC2,476,6951.70%$37.4 million0.00%+703,14513F
State Street Corp.2,319,6381.60%$35.0 million0.00%+1,163,81813F
Greenoaks LLC2,316,7961.59%$35.0 million1.48%no change13F
Capital World Investors2,097,2631.44%$31.7 million0.00%+57,21513F
Goldman Sachs Group Inc.1,784,5501.23%$26.9 million0.00%-376,74313F
Two Sigma Investments, LP1,767,9001.22%$26.7 million0.02%-1,123,99013F
Canada Pension Plan Investment Board1,708,9001.18%$25.8 million0.01%+951,80013F
Jupiter Topco LLC1,614,0701.11%$24.4 million0.01%first 13F13F
Renaissance Technologies LLC1,560,2441.07%$23.6 million0.03%-80,60013F
First Trust Advisors LP1,392,6590.96%$21.0 million0.01%+210,77213F
Clearbridge Investments, LLC1,384,2360.95%$20.9 million0.02%-89,19513F
Islander Capital Partners, L.P.1,383,3040.95%$20.9 million7.58%+157,30413F
Fiera Capital Corp1,377,7210.95%$20.8 million0.07%-1,021,53913F
Barton Investment Management1,256,6080.86%$19.0 million2.57%+206,55613F
Arrowstreet Capital, Limited Partnership1,252,1190.86%$18.9 million0.01%+1,072,95913F
Marshall Wace, LLP1,218,3590.84%$18.4 million0.02%+82,97513F
D. E. Shaw & Co., Inc.1,194,1620.82%$18.0 million0.01%+1,129,63513F
Citadel Advisors LLC1,172,1120.81%$17.7 million0.01%+9,73313F
Trexquant Investment LP1,143,4760.79%$17.3 million0.11%+443,48813F
Point72 Asset Management, L.P.1,114,4670.77%$16.8 million0.03%-557,89213F
Franklin Resources Inc.1,088,9590.75%$16.4 million0.00%+11,02913F
Dimensional Fund Advisors LP1,002,2100.69%$15.1 million0.00%+679,50213F
Squarepoint Ops LLC962,1360.66%$14.5 million0.03%+885,38513F
Bienville Capital Management, LLC938,3540.65%$14.2 million2.04%-289,50913F
ExodusPoint Capital Management, LP934,1360.64%$14.1 million0.13%new13F
Qube Research & Technologies Ltd901,3950.62%$13.6 million0.01%+299,68813F
Vanguard Fiduciary Trust Co.893,3310.61%$13.5 million0.00%+15,09213F
JPMorgan Chase & Co.817,6830.56%$12.3 million0.00%-3,482,29413F
Amundi814,1420.56%$12.3 million0.00%new13F
UBS Group AG808,2040.56%$12.2 million0.00%+611,79313F
Charles Schwab Investment Management Inc.796,8910.55%$12.0 million0.00%-87,89713F
Balyasny Asset Management L.P.718,8990.49%$10.9 million0.02%new13F
Delta Global Management LP690,6580.48%$10.4 million1.13%-156,83913F
Northern Trust Corp.678,1340.47%$10.2 million0.00%+308,06213F
Congress Asset Management Co.636,2300.44%$9.6 million0.06%new13F
Bank of New York Mellon Corp573,7270.39%$8.7 million0.00%-934,41013F
Quantinno Capital Management LP548,6760.38%$8.3 million0.01%+62913F
New York State Common Retirement Fund528,3680.36%$8.0 million0.01%+70,23313F
The 50 largest of the 277 funds that reported a position in KVYO in their 13F for the quarter ended 30 June 2026, by the value each reported.
Read moreShare of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?

Options the funds reported on KVYO

FundOptionShares under the optionsValue of those sharesQuarter endedFiling
Citadel AdvisorsCalls315,000$4.8 million30 June 202613F
Citadel AdvisorsPuts208,300$3.1 million30 June 202613F
Two Sigma InvestmentsCalls15,200$229,52030 June 202613F
Two Sigma InvestmentsPuts14,100$212,91030 June 202613F
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
Read moreThey are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.

Schedule 13D and 13G filed on the name, last twelve months

FiledScheduleWhoHoldingOf the classEvent dateRule or purposeFiling
31 August 202613D/AShopify Strategic Holdings 3 LLC and 1 other33.4 million20.8%5 August 2026EDGAR
6 August 202613G/AFMR LLC and 3 others6.6 million4.7%30 June 2026passive, institutional (13d-1(b))EDGAR
5 August 202613G/ABialecki Andrew and 1 other75.3 million36.5%30 June 2026passive, other (13d-1(d))EDGAR
31 July 202613GVanguard Capital Management and 1 other7.1 million5.0%30 June 2026passive, institutional (13d-1(b))EDGAR
29 July 202613GBlackRock, Inc. and 1 other7.5 million5.3%30 June 2026passive, institutional (13d-1(b))EDGAR
14 May 202613G/ACapital International Investors and 1 other11.7 million8.0%31 March 2026passive, institutional (13d-1(b))EDGAR
29 April 202613GVanguard Portfolio Management and 1 other7.5 million5.2%31 March 2026passive, institutional (13d-1(b))EDGAR
27 March 202613G/AThe Vanguard Group and 1 other00.0%13 March 2026passive, institutional (13d-1(b))EDGAR
6 March 202613G/AMorgan Stanley and 1 other6.0 million4.1%28 February 2026passive, institutional (13d-1(b))EDGAR
13 February 202613GCapital International Investors and 1 other12.8 million9.3%31 December 2025passive, institutional (13d-1(b))EDGAR
10 February 202613G/ABialecki Andrew and 1 other78.2 million35.1%31 December 2025passive, other (13d-1(d))EDGAR
8 January 202613G/AMorgan Stanley and 1 other14.5 million10.5%31 December 2025passive, institutional (13d-1(b))EDGAR
14 November 202513D/AShopify Strategic Holdings 3 LLC and 1 other32.0 million18.9%29 August 2025EDGAR
13 November 202513G/ASummit Partners Growth Equity Fund IX-A, L.P. and 11 others18.9 million12.0%30 September 2025passive, other (13d-1(d))EDGAR
7 November 202513GMorgan Stanley and 1 other10.3 million8.4%30 September 2025passive, institutional (13d-1(b))EDGAR
5 November 202513G/AHallen Ed and 1 other32.9 million19.4%30 September 2025passive, other (13d-1(d))EDGAR
5 November 202513G/ABialecki Andrew and 1 other83.1 million37.7%30 September 2025passive, other (13d-1(d))EDGAR
5 November 202513GFMR LLC and 3 others8.2 million6.7%30 September 2025passive, institutional (13d-1(b))EDGAR
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
Read moreAmendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13G

Fails to deliver

Settlement dateShares failedPriceFile
24 September 202638,175$16.78SEC
18 September 2026884$15.87SEC
17 September 202613,795$16.23SEC
16 September 202613,617$16.98SEC
15 September 20261,766$17.40SEC
14 September 202613,523$16.36SEC
11 September 202613,523$16.13SEC
10 September 202613,656$16.27SEC
9 September 202613,656$17.89SEC
4 September 20261,816$19.76SEC
3 September 20263,120$19.31SEC
2 September 20261,797$20.64SEC
27 August 2026238$17.79SEC
26 August 2026993$17.60SEC
24 August 2026668$18.33SEC
21 August 202624$18.11SEC
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.
Read moreLargest in the window: 38,175 on 24 September 2026. A fail is an operational fact about settlement, not a position.