# KLAVIYO INC COM SER A

KLAVIYO INC COM SER A is a security (CUSIP 49845K101) tracked across SEC portfolio filings. 281 institutional managers reported $3.2B on Form 13F as of 2026-06-30; 14 registered fund positions totaling $358.5M via N-PORT as of 2026-05-31.

## Summary

- Issuer: KLAVIYO INC
- Class: COM SER A
- CUSIP: 49845K101
- Asset category: EC
- 13F holders: 281
- 13F value: $3.2B
- 13F period: 2026-06-30
- N-PORT fund positions: 14
- N-PORT value: $358.5M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 281 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $466.3M | 14,361,540 |
| [SUMMIT PARTNERS L P](https://search.stillhousedata.com/firm/135271) | BOSTON, MA | $284.7M | 18,852,778 |
| Capital International Investors | Los Angeles, CA | $227.8M | 11,703,859 |
| FMR LLC | BOSTON, MA | $190.5M | 9,787,082 |
| [Whale Rock Capital Management LLC](https://search.stillhousedata.com/firm/140746) | Boston, MA | $132.8M | 6,825,206 |
| WELLINGTON MANAGEMENT GROUP LLP | BOSTON, MA | $106.6M | 5,479,443 |
| [ALLIANCEBERNSTEIN L.P.](https://search.stillhousedata.com/firm/108477) | NASHVILLE, TN | $99.0M | 3,048,223 |
| MORGAN STANLEY | NEW YORK, NY | $98.6M | 5,067,690 |
| BlackRock, Inc. | New York, NY | $84.7M | 4,354,335 |
| JPMORGAN CHASE & CO | NEW YORK, NY | $81.6M | 4,299,977 |
| [Sands Capital Ventures, LLC](https://search.stillhousedata.com/firm/155517) | ARLINGTON, VA | $71.0M | 3,649,678 |
| FULLER & THALER ASSET MANAGEMENT, INC. | San Mateo, CA | $57.3M | 2,941,998 |
| AMERICAN CENTURY COMPANIES INC | KANSAS CITY, MO | $56.9M | 2,923,295 |
| [TWO SIGMA INVESTMENTS, LP](https://search.stillhousedata.com/firm/137137) | New York, NY | $56.3M | 2,891,890 |
| FEDERATED HERMES, INC. | Pittsburgh, PA | $51.4M | 2,639,485 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [SMALLCAP World Fund Inc](https://search.stillhousedata.com/fund/S000009599) | SMALLCAP World Fund Inc | $111.4M | 13.74% |
| [VANGUARD EXPLORER FUND](https://search.stillhousedata.com/fund/S000002578) | VANGUARD EXPLORER FUND | $108.5M | 49.83% |
| [Growth Fund of America](https://search.stillhousedata.com/fund/S000009228) | Growth Fund of America | $83.5M | 2.31% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $31.6M | 3.88% |
| [AB DISCOVERY GROWTH FUND, INC.](https://search.stillhousedata.com/fund/S000010117) | AB DISCOVERY GROWTH FUND, INC. | $17.4M | 64.77% |
| [Technology Growth Portfolio](https://search.stillhousedata.com/fund/S000002781) | BNY MELLON INVESTMENT PORTFOLIOS | $2.0M | 125.50% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $1.5M | 0.26% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $1.4M | 0.46% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $461K | 1.28% |
| [Victory RS Small Cap Growth Equity VIP Series](https://search.stillhousedata.com/fund/S000053585) | Victory Variable Insurance Funds | $409K | 76.17% |
| [BlackRock Advantage SMID Cap Fund, Inc.](https://search.stillhousedata.com/fund/S000002323) | BlackRock Advantage SMID Cap Fund, Inc. | $135K | 1.79% |
| [Goldman Sachs MarketBeta U.S. 1000 Equity ETF](https://search.stillhousedata.com/fund/S000075322) | Goldman Sachs ETF Trust II | $69K | 0.29% |
| [Strategic Allocation: Aggressive Fund](https://search.stillhousedata.com/fund/S000005931) | American Century Strategic Asset Allocations Inc | $60K | 0.82% |
| Saba Capital Income & Opportunities Fund | Saba Capital Income & Opportunities Fund | $-3K | -0.07% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/49845K101.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.