As of November 6, 2026, Klaviyo, Inc. is a publicly traded company (NYSE: KVYO). The largest holder reporting an active stake on Schedule 13D is Shopify Inc., at 20.83%. No bankruptcy or receivership appears in its SEC Form 8-K filings. Passive holders reporting on Schedule 13G include Bialecki Andrew (36.5%), Capital International Investors (8%), Fidelity (FMR) (5.3%) (Schedule 13D/A, August 31, 2026).
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Is Klaviyo, Inc. a real, registered company?
- Klaviyo, Inc. files with the SEC under CIK 1835830 (its SEC filings).
- Its shares are listed under the ticker KVYO on NYSE (SEC company record).
- Incorporated in Delaware; business address in Boston, Massachusetts, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under KLAVIYO INC in our court records and SEC 8-K records (as of 2026-11-06).
- Leadership changes: the latest reported is Erica Smith, Chief Financial Officer (Form 8-K filed 2026-07-13). Check you are dealing with the people now in charge.
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names Fidelity (FMR) (filed 2026-11-05).
Who are Klaviyo, Inc.'s owners and officers?
Klaviyo, Inc.: incorporated in Delaware; business address in Boston, Massachusetts; industry Services-Prepackaged Software (Schedule 13G, 2026-11-05).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G, 2026-11-05 | Fmr LLC | 5.3% |
| Schedule 13D/A, 2026-08-31 | Shopify Inc. | 20.83% |
| Schedule 13G/A, 2026-08-06 | Fmr LLC | 4.7% |
| Schedule 13G/A, 2026-08-05 | Bialecki Andrew | 36.5% |
| Schedule 13G, 2026-07-31 | Vanguard Capital Management | 5% |
| Schedule 13G, 2026-07-29 | Blackrock, Inc. | 5.3% |
| Schedule 13G/A, 2026-05-14 | Capital International Investors | 8% |
| Schedule 13G, 2026-04-29 | Vanguard Portfolio Management | 5.17% |
| Schedule 13G/A, 2026-03-27 | The Vanguard Group | 0% |
| Schedule 13G/A, 2026-03-06 | Morgan Stanley | 4.1% |
| Schedule 13G, 2026-02-13 | Capital International Investors | 9.3% |
| Schedule 13G/A, 2026-02-10 | Bialecki Andrew | 35.1% |
Questions about who owns Klaviyo, Inc.
Who owns Klaviyo, Inc.?
On this page, 7 holders' latest ownership filings report 5% or more of Klaviyo, Inc.: Bialecki Andrew (36.5%, Schedule 13G/A, filed 2026-08-05), Shopify Inc. (20.83%, Schedule 13D/A, filed 2026-08-31), Capital International Investors (8%, Schedule 13G/A, filed 2026-05-14), Fmr LLC (5.3%, Schedule 13G, filed 2026-11-05) and Blackrock, Inc. (5.3%, Schedule 13G, filed 2026-07-29); 2 more are listed above.
Who are the largest shareholders of Klaviyo, Inc.?
By the share each holder's latest filing reports, the largest holders of Klaviyo, Inc. on this page are Bialecki Andrew (36.5%), Shopify Inc. (20.83%) and Capital International Investors (8%).
When did Bialecki Andrew buy into Klaviyo, Inc.?
The filings give report dates, not purchase dates. The earliest filing from Bialecki Andrew on this page is the Schedule 13G/A, filed 2026-02-10, reporting 35.1%; its latest, Schedule 13G/A filed 2026-08-05, reports 36.5%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 12 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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| Filed | Person | Role | Change | Effective |
|---|---|---|---|---|
| Form 8-K, 2026-07-13 | Erica Smith | Chief Financial Officer | appointed | |
| Form 8-K, 2026-07-13 | Erica Smith | appointed | ||
| Form 8-K, 2026-05-05 | Amanda Whalen | Chief Financial Officer | departed | |
| Form 8-K, 2026-05-05 | Amanda Whalen | appointed |
Which insiders own Klaviyo, Inc. shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , the chief executive and a director: 2,301,573 shares (Form 4, 2026-08-18).
- , the chief financial officer: 1,150,684 shares (Form 4, 2026-09-17).
- , the chief people officer: 907,458 shares (Form 4, 2026-08-18).
- , the chief financial officer: 795,242 shares (Form 4, 2026-08-18).
- , the chief legal officer: 477,866 shares (Form 4, 2026-09-01).
Shares only: the company's cover page does not give one share count for a single class, so no percentage is worked out.
How much has Klaviyo, Inc. raised?
No fundraising or offering filing from Klaviyo, Inc. is on file with us.
Keep reading
More on Klaviyo, Inc. and the records around it.
Klaviyo, Inc. elsewhere on the record
- 5%+ stake filings Nov 2026
- Leadership changes Jul 2026
Companies that share a holder
- Summit Partners Growth Equity Fund IX-A, L.P. also filed stake reports on 1 other company: LifeStance Health Group, Inc (Aug 2026)
- Capital International Investors also filed stake reports on 96 other companies: Aurora Innovation, Inc. (Nov 2026), Arxis, Inc. (Aug 2026), Astronics Corp. (Aug 2026)
- Morgan Stanley also filed stake reports on 182 other companies: MDA Space Ltd. (Nov 2026), RiverNorth/DoubleLine Strategic Opportunity Fund, Inc. (Oct 2026), Arbutus Biopharma Corp (Oct 2026)
Related pages
Filings, cases and notices link to their records. A not-found line names the records searched; it is not proof of absence.
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