Vault-13

KLAVIYO INC KVYO

COM SER A · Common Stock · CUSIP 49845K101

B2C CRM and marketing automation platform

103 institutional holders +5 vs Q3 2023
76,919,06376.9m shares reported held*
$2.1bnreported value*
39 new 34 added 16 reduced 34 sold out net bought ≈ $45.8m (+1.7m shares)

* 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 ($194.5k this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $27.76. Options: 7 managers hold calls ($4.9m notional), 9 hold puts ($13.4m).

Trends to Q4 2023

Institutional holders

Managers reporting a position, each quarter

050100150Q3 23: 98Q4 23: 103103Q3 23Q4 23
Numbers
QuarterHolders
Q3 202398
Q4 2023103

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$5m$10m$15mQ1 23 calls: $0Q1 23 puts: $0Q1 23P/C —Q2 23 calls: $0Q2 23 puts: $0Q2 23P/C —Q3 23 calls: $1.4mQ3 23 puts: $1.2mQ3 23P/C 0.87Q4 23 calls: $4.9mQ4 23 puts: $13.4mQ4 23P/C 2.72
Numbers
QuarterCallsPutsP/C
Q1 2023$0$0—
Q2 2023$0$0—
Q3 2023$1.4m$1.2m0.87
Q4 2023$4.9m$13.4m2.72

Biggest buyers

JPMORGAN CHASE & CO Added +2,203,368+2.2m
GOLDMAN SACHS GROUP INC Added +1,042,902+1.0m
FRANKLIN RESOURCES INC Added +673,929+673.9k
VANGUARD GROUP INC Added +659,279+659.3k
FEDERATED HERMES, INC. New +575,276+575.3k
MORGAN STANLEY Added +459,751+459.8k
BlackRock Inc. Added +348,410+348.4k
ALLIANCEBERNSTEIN L.P. Added +317,425+317.4k
Clearbridge Investments, LLC Added +309,864+309.9k
MILLENNIUM MANAGEMENT LLC Added +287,856+287.9k

Biggest sellers

SUMMIT PARTNERS L P Reduced -1,770,318-1.8m
PRICE T ROWE ASSOCIATES INC /MD/ Sold out -1,538,897-1.5m
T. Rowe Price Investment Management, Inc. Sold out -1,000,000-1.0m
JANUS HENDERSON GROUP PLC Sold out -500,018-500.0k
FMR LLC Reduced -369,084-369.1k
Balyasny Asset Management L.P. Sold out -355,834-355.8k
LORD, ABBETT & CO. LLC Sold out -296,300-296.3k
BANK OF MONTREAL /CAN/ Sold out -284,025-284.0k
Alyeska Investment Group, L.P. Reduced -255,670-255.7k
GREENOAKS LLC Sold out -250,000-250.0k

Biggest calls

UBS Group AG New $3.5m124.9k shares
JANE STREET GROUP, LLC New $619.5k22.3k shares
CITADEL ADVISORS LLC Added $450.0k16.2k shares
SIMPLEX TRADING, LLC Added $263.0k9.5k shares
GROUP ONE TRADING LLC Added $125.0k4.5k shares
Cutler Group LLC / CA Added $1.0k3.7k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $4.9m177.5k shares
Squarepoint Ops LLC New $3.6m129.3k shares
Caption Management, LLC New $1.4m50.0k shares
JANE STREET GROUP, LLC New $1.3m47.9k shares
CITADEL ADVISORS LLC Added $1.3m45.4k shares
SIMPLEX TRADING, LLC Added $819.0k29.5k shares
GROUP ONE TRADING LLC Added $69.5k2.5k shares
Cutler Group LLC / CA Added $14.0k3.8k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $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.

HolderStakeChangeShares Last filed
Bialecki Andrew 13G · exempt (held before listing) +1.4 pts · filed 2026-08-05 36.5% +1.4 pts 75.3m≈ $1.1bn 2026-08-05
SHOPIFY INC. 13D · may seek influence +2.0 pts · filed 2026-08-31 20.8% +2.0 pts 33.4m≈ $504.4m 2026-08-31
Hallen Ed 13G · exempt (held before listing) filed 2025-11-05 19.4% 32.9m≈ $496.5m 2025-11-05
SUMMIT PARTNERS L P 13G · exempt (held before listing) -8.8 pts · filed 2025-11-13 12.0% -8.8 pts 18.9m≈ $284.7m 2025-11-13
Accomplice Fund I, L.P. 13G · exempt (held before listing) filed 2025-05-07 10.5% 11.1m≈ $168.2m 2025-05-07
Capital International Investors 13G · institution -1.3 pts · filed 2026-05-14 8.0% -1.3 pts 11.7m≈ $176.7m 2026-05-14
BlackRock, Inc. 13G · institution new · filed 2026-07-29 5.3% new 7.5m≈ $112.7m 2026-07-29
VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 5.2% new 7.5m≈ $113.7m 2026-04-29
VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-07-31 5.0% new 7.1m≈ $106.5m 2026-07-31

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 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)

BuyingSelling
101Q1 22: 0 buyingQ1 22: 0 sellingQ2 22: 0 buyingQ2 22: 0 sellingQ2 22Q3 22: 0 buyingQ3 22: 0 sellingQ4 22: 0 buyingQ4 22: 0 sellingQ4 22Q1 23: 0 buyingQ1 23: 0 sellingQ2 23: 0 buyingQ2 23: 0 sellingQ2 23Q3 23: 0 buyingQ3 23: 1 sellingQ4 23: 0 buyingQ4 23: 0 sellingQ4 23
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q1 20220—0——
Q2 20220—0——
Q3 20220—0——
Q4 20220—0——
Q1 20230—0——
Q2 20230—0——
Q3 20230—1$339.8k—
Q4 20230—0——
DateInsiderTradeSharesPrice ValueTheir holding
2023-10-23 SUMMIT PARTNERS L P +5 10% owner · See footnote Sold 1,770,318 $28.32 $50.1m1.8m shares -100%
2023-10-23 Fagnan Jeff +3 10% owner Sold 637,049 $28.32 $18.0m637.0k shares -96%
2023-10-23 Astral Capital ABEH, LLC +2 10% owner Sold 294,008 $28.32 $8.3m294.0k shares -96%

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 2023

#ManagerLocationShares Value% of their portfolioChangeShares change
1 SUMMIT PARTNERS L P 48.39% of their portfolio BOSTON, MA 47,741,62947.7m $1.3bn $1.3bn 48.39% Reduced -1.8m -1,770,318
2 JPMORGAN CHASE & CO 0.01% of their portfolio NEW YORK, NY 3,716,5363.7m $103.2m $103.2m 0.01% Added +2.2m +2,203,368
3 BlackRock Inc. 0.00% of their portfolio New York, NY 2,219,6492.2m $61.7m $61.7m 0.00% Added +348.4k +348,410
4 Clearbridge Investments, LLC 0.05% of their portfolio NEW YORK, NY 2,174,0972.2m $60.4m $60.4m 0.05% Added +309.9k +309,864
5 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 2,103,7132.1m $58.4m $58.4m 0.00% Added +659.3k +659,279
6 ALLIANCEBERNSTEIN L.P. 0.02% of their portfolio NASHVILLE, TN 1,889,1101.9m $52.5m $52.5m 0.02% Added +317.4k +317,425
7 GOLDMAN SACHS GROUP INC 0.01% of their portfolio NEW YORK, NY 1,472,1401.5m $40.9m $40.9m 0.01% Added +1.0m +1,042,902
8 FRANKLIN RESOURCES INC 0.02% of their portfolio San Mateo, CA 1,380,5151.4m $38.4m $38.4m 0.02% Added +673.9k +673,929
9 Blue Owl Capital Holdings LP 7.52% of their portfolio New York, NY 1,198,2701.2m $31.5m $31.5m 7.52% Unchanged
10 Capital Research Global Investors 0.01% of their portfolio Los Angeles, CA 1,002,8761.0m $27.9m $27.9m 0.01% Unchanged
11 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 856,820856.8k $23.8m $23.8m 0.00% Added +459.8k +459,751
12 STEADFAST CAPITAL MANAGEMENT LP 0.58% of their portfolio NEW YORK, NY 840,398840.4k $23.3m $23.3m 0.58% Unchanged
13 NORGES BANK 0.00% of their portfolio OSLO, Q8 765,219765.2k $21.3m $21.3m 0.00% Added +107.5k +107,490
14 Capital World Investors 0.00% of their portfolio LOS ANGELES, CA 700,783700.8k $19.5m $19.5m 0.00% Added +783 +783
15 SANDS CAPITAL MANAGEMENT, LLC 0.06% of their portfolio ARLINGTON, VA 663,303663.3k $18.4m $18.4m 0.06% Added +24.3k +24,329
16 FMR LLC 0.00% of their portfolio BOSTON, MA 622,305622.3k $17.3m $17.3m 0.00% Reduced -369.1k -369,084
17 FEDERATED HERMES, INC. 0.04% of their portfolio PITTSBURGH, PA 575,276575.3k $16.0m $16.0m 0.04% New
18 Dragoneer Investment Group, LLC 0.30% of their portfolio SAN FRANCISCO, CA 500,000500.0k $13.9m $13.9m 0.30% Unchanged
19 Sands Capital Alternatives, LLC 3.64% of their portfolio ARLINGTON, VA 471,260471.3k $13.1m $13.1m 3.64% Added +1.8k +1,829
20 AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio KANSAS CITY, MO 378,371378.4k $10.5m $10.5m 0.01% Added +178.4k +178,371
21 MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 352,030352.0k $9.8m $9.8m 0.01% Added +287.9k +287,856
22 GLYNN CAPITAL MANAGEMENT LLC 1.51% of their portfolio MENLO PARK, CA 291,155291.2k $8.1m $8.1m 1.51% Added +45.4k +45,406
23 VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio ATLANTA, GA 283,800283.8k $7.9m $7.9m 0.01% Reduced -7.0k -6,961
24 Whale Rock Capital Management LLC 0.13% of their portfolio Boston, MA 260,896260.9k $7.2m $7.2m 0.13% Added +10.9k +10,896
25 Polar Capital Holdings Plc 0.04% of their portfolio London, X0 244,583244.6k $6.8m $6.8m 0.04% New
26 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 232,032232.0k $6.4m $6.4m 0.00% New
27 TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio NEW YORK, NY 199,806199.8k $5.6m $5.6m 0.01% New
28 RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio NEW YORK, NY 197,900197.9k $5.5m $5.5m 0.01% New
29 MARSHALL WACE, LLP 0.01% of their portfolio LONDON, X0 188,469188.5k $5.2m $5.2m 0.01% Added +117.5k +117,456
30 Nuveen Asset Management, LLC 0.00% of their portfolio CHICAGO, IL 179,882179.9k $5.0m $5.0m 0.00% Reduced -20.1k -20,118
31 Granahan Investment Management, LLC 0.16% of their portfolio WALTHAM, MA 174,329174.3k $4.8m $4.8m 0.16% Added +104.2k +104,161
32 GILDER GAGNON HOWE & CO LLC 0.06% of their portfolio New York, NY 169,496169.5k $4.7m $4.7m 0.06% Reduced -32.3k -32,333
33 Alyeska Investment Group, L.P. 0.03% of their portfolio CHICAGO, IL 166,441166.4k $4.6m $4.6m 0.03% Reduced -255.7k -255,670
34 Telemark Asset Management, LLC 0.62% of their portfolio BOSTON, MA 150,000150.0k $4.2m $4.2m 0.62% Reduced -50.0k -50,000
35 FORMULA GROWTH LTD 1.25% of their portfolio MONTREAL, A8 140,000140.0k $3.9m $3.9m 1.25% New
36 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 137,576137.6k $3.8m $3.8m 0.00% New
37 Caisse de depot et placement du Quebec 0.01% of their portfolio Montreal, A8 135,831135.8k $3.8m $3.8m 0.01% Added +35.8k +35,831
38 CAPSTONE INVESTMENT ADVISORS, LLC 0.06% of their portfolio NEW YORK, NY 125,072125.1k $3.5m $3.5m 0.06% Added +25.0k +25,035
39 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 115,850115.8k $3.2m $3.2m 0.00% New
40 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 93,44693.4k $2.6m $2.6m 0.00% New
41 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 91,95492.0k $2.6m $2.6m 0.00% New
42 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 90,77690.8k $2.5m $2.5m 0.00% Added +69.7k +69,695
43 Legal & General Group Plc 0.00% of their portfolio London, X0 73,91773.9k $2.1m $2.1m 0.00% Added +68.9k +68,917
44 TWO SIGMA ADVISERS, LP 0.00% of their portfolio NEW YORK, NY 72,70072.7k $2.0m $2.0m 0.00% New
45 NEEDHAM INVESTMENT MANAGEMENT LLC 0.25% of their portfolio NEW YORK, NY 72,50072.5k $2.0m $2.0m 0.25% New
46 Monashee Investment Management LLC 0.34% of their portfolio Boston, MA 68,97469.0k $1.9m $1.9m 0.34% Reduced -91.8k -91,766
47 FIRST TRUST ADVISORS LP 0.00% of their portfolio Wheaton, IL 67,75867.8k $1.9m $1.9m 0.00% Reduced -834 -834
48 Mitsubishi UFJ Asset Management Co., Ltd. 0.00% of their portfolio TOKYO, M0 66,70066.7k $1.8m $1.8m 0.00% New
49 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 63,92063.9k $1.8m $1.8m 0.00% Reduced -246.6k -246,635
50 PURSUE WEALTH PARTNERS LLC 1.13% of their portfolio ALAMO, CA 63,11763.1k $1.8m $1.8m 1.13% New
51 Jump Financial, LLC 0.06% of their portfolio Chicago, IL 61,48361.5k $1.7m $1.7m 0.06% New
52 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 59,20059.2k $1.6m $1.6m 0.00% Added +24.2k +24,200
53 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 53,14853.1k $1.5m $1.5m 0.00% Added +15.8k +15,798
54 Resolute Capital Asset Partners LLC 0.91% of their portfolio DENVER, CO 50,00050.0k $1.4m $1.4m 0.91% New
55 SEVEN GRAND MANAGERS, LLC 1.33% of their portfolio BRONXVILLE, NY 50,00050.0k $1.4m $1.4m 1.33% Added +30.0k +30,000
56 Verition Fund Management LLC 0.01% of their portfolio GREENWICH, CT 48,87648.9k $1.4m $1.4m 0.01% Added +38.9k +38,876
57 Weiss Multi-Strategy Advisers LLC 0.03% of their portfolio NEW YORK, NY 47,61947.6k $1.3m $1.3m 0.03% New
58 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 47,47147.5k $1.3m $1.3m 0.00% New
59 NEUBERGER BERMAN GROUP LLC 0.00% of their portfolio NEW YORK, NY 45,18345.2k $1.3m $1.3m 0.00% Reduced -12.6k -12,600
60 Squarepoint Ops LLC 0.00% of their portfolio NEW YORK, NY 42,00642.0k $1.2m $1.2m 0.00% Reduced -15.8k -15,818
61 Avala Global LP 0.09% of their portfolio NEW YORK, NY 40,00040.0k $1.1m $1.1m 0.09% Unchanged
62 Cubist Systematic Strategies, LLC 0.01% of their portfolio STAMFORD, CT 39,32939.3k $1.1m $1.1m 0.01% New
63 TIGER GLOBAL MANAGEMENT LLC 0.01% of their portfolio New York, NY 35,00035.0k $972.3k $972.3k 0.01% Unchanged
64 Ghisallo Capital Management LLC 0.10% of their portfolio BOSTON, MA 35,00035.0k $972.3k $972.3k 0.10% Unchanged
65 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 34,10034.1k $947.3k $947.3k 0.00% New
66 Engineers Gate Manager LP 0.03% of their portfolio NEW YORK, NY 31,93631.9k $887.2k $887.2k 0.03% New
67 Pentwater Capital Management LP 0.02% of their portfolio Naples, FL 30,00030.0k $833.4k $833.4k 0.02% New
68 Quantbot Technologies LP 0.05% of their portfolio NEW YORK, NY 29,77329.8k $827.1k $827.1k 0.05% New
69 CAAS CAPITAL MANAGEMENT LP 0.74% of their portfolio NEW YORK, NY 28,03728.0k $778.9k $778.9k 0.74% Reduced -197.9k -197,926
70 Granger Management LLC 0.25% of their portfolio New York, NY 25,17625.2k $699.4k $699.4k 0.25% New
71 Napean Trading & Investment Co (Singapore) PTE Ltd 0.19% of their portfolio SINGAPORE, U0 25,00025.0k $694.5k $694.5k 0.19% First filing
72 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 22,99223.0k $638.7k $638.7k 0.00% New
73 Amundi 0.00% of their portfolio Paris, I0 20,43520.4k $561.6k $561.6k 0.00% Added +3.0k +3,012
74 DIKER MANAGEMENT LLC 0.46% of their portfolio New York, NY 20,10020.1k $558.4k $558.4k 0.46% New
75 SIMPLEX TRADING, LLC 0.02% of their portfolio CHICAGO, IL 17,95918.0k $498.0k $498.0k 0.02% Added +10.0k +10,031
76 Centiva Capital, LP 0.03% of their portfolio New York, NY 15,00815.0k $416.9k $416.9k 0.03% New
77 BLAIR WILLIAM & CO/IL 0.00% of their portfolio CHICAGO, IL 13,15813.2k $365.5k $365.5k 0.00% New
78 Rakuten Securities, Inc. 0.27% of their portfolio TOKYO, M0 12,39112.4k $344.2k $344.2k 0.27% First filing
79 Renaissance Capital LLC 0.17% of their portfolio Stamford, CT 12,29112.3k $341.4k $341.4k 0.17% New
80 Caption Management, LLC 0.03% of their portfolio OKLAHOMA CITY, OK 11,50011.5k $319.5k $319.5k 0.03% New
81 Alberta Investment Management Corp 0.00% of their portfolio EDMONTON, A0 11,34411.3k $315.1k $315.1k 0.00% Unchanged
82 TUDOR INVESTMENT CORP ET AL 0.00% of their portfolio STAMFORD, CT 11,22611.2k $311.9k $311.9k 0.00% Reduced -22.4k -22,387
83 MOODY NATIONAL BANK TRUST DIVISION 0.02% of their portfolio GALVESTON, TX 8,3238.3k $231.2k $231.2k 0.02% New
84 Woodline Partners LP 0.00% of their portfolio San Francisco, CA 8,0408.0k $223.4k $223.4k 0.00% Unchanged
85 UBS Group AG 0.00% of their portfolio ZURICH, V8 7,0007.0k $194.5k $194.5k 0.00% New
86 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 6,4766.5k $180.0k $180.0k 0.00% Added +4.0k +4,040
87 Sandia Investment Management LP 0.12% of their portfolio BOSTON, MA 6,0006.0k $166.7k $166.7k 0.12% Reduced -9.0k -9,000
88 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 5,4855.5k $152.4k $152.4k 0.00% Added +3.6k +3,600
89 Ensign Peak Advisors, Inc 0.00% of their portfolio SALT LAKE CITY, UT 4,8604.9k $135.0k $135.0k 0.00% Added +138 +138
90 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 4,0814.1k $113.4k $113.4k 0.00% Added +4.1k +4,061
91 Hidden Lake Asset Management LP 0.06% of their portfolio NEW YORK, NY 2,0002.0k $55.6k $55.6k 0.06% Unchanged
92 Cutler Group LLC / CA 0.00% of their portfolio SAN FRANCISCO, CA 1,2361.2k $34.0k $34.0k 0.00% New
93 SALEM INVESTMENT COUNSELORS INC 0.00% of their portfolio WINSTON-SALEM, NC 900900 $25.0k $25.0k 0.00% New
94 Rakuten Investment Management, Inc. 0.00% of their portfolio TOKYO, M0 443443 $12.5k $12.5k 0.00% New
95 CWM, LLC 0.00% of their portfolio OMAHA, NE 369369 $10.0k $10.0k 0.00% New
96 COMERICA BANK 0.00% of their portfolio DALLAS, TX 359359 $10.0k $10.0k 0.00% Added +261 +261
97 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 183183 $5.1k $5.1k 0.00% New
98 BOURGEON CAPITAL MANAGEMENT LLC 0.00% of their portfolio Darien, CT 150150 $4.2k $4.2k 0.00% Unchanged
99 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 9898 $2.7k $2.7k 0.00% Reduced -909 -909
100 PNC Financial Services Group, Inc. 0.00% of their portfolio Pittsburgh, PA 6666 $1.8k $1.8k 0.00% Added +47 +47