Security key
49845K101
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 133,427,489
- Total 13F value
- $4,480,157,634
- Share change
- +17,800,830
- Put/Call ratio
- 44%
- SEC-reported price per share
- $33.58
- Number of holders
- 254
- Value change
- +$606,486,905
- Number of buys
- 180
- Number of sells
- 88
- Shares outstanding
- 146,298,238
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2025
Institutions
254
Top holders
10
KVYO full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2025
Previous quarter: Q1 2025
Klaviyo, Inc. SEC filings
Klaviyo, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 49845K101
Recent filing periods:
Ownership snapshot
Top reported holders of KVYO - Klaviyo, Inc. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Accomplice Fund I, L.P.
Disclosed value leader
SUMMIT PARTNERS L P
Comparable rows
15/15
Latest evidence
30 Jun 2025
13D/G
3/4/5
13F
Lead comparable stake: 10%
13D/G row: Accomplice Fund I, L.P.
Showing 1-6 of 15 holder rows.
Quick read
Accomplice Fund I, L.P. leads the comparable SEC ownership view at 10%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Accomplice Fund I, L.P.'s linked filing trail.
Comparable ownership
Top 5
Accomplice Fund I, L.P.
10%
VANGUARD GROUP INC
10%
Accel Growth Fund V L.P.
4.9%
Sands Capital Alternatives, LLC
4.9%
ALLIANCEBERNSTEIN L.P.
4.4%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Accomplice Fund I, L.P. |
13D/G
3/4/5
Jeff Fagnan · 10%+ Owner
|
10%
|
$322,309,237
11,137,154 shares
|
$0 | 31 Mar 2025 |
| VANGUARD GROUP INC |
13D/G
13F
The Vanguard Group · Company
|
10%
|
$365,938,152
10,728,178 shares
|
$0 | 30 Jun 2025 |
| Accel Growth Fund V L.P. |
13D/G
Ping Li ("PL")
|
4.9%
|
$134,813,025
4,658,363 shares
|
+$1,126,576 | 31 Mar 2025 |
| Sands Capital Alternatives, LLC |
13D/G
13F
SANDS FRANK M. · Company
|
4.9%
|
$127,806,680
4,416,264 shares
|
$0 | 31 Mar 2025 |
| ALLIANCEBERNSTEIN L.P. |
13F
13D/G
Company
|
4.4%
from 13D/G
|
$121,623,413
4,019,280 shares
|
— | 31 Mar 2025 |
| Capital Research Global Investors |
13D/G
13F
Company
|
3.8%
|
$86,863,410
3,001,500 shares
|
$0 | 31 Dec 2024 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
254
Shares
133,427,489
Rows available
254
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2025 vs Q1 2025 Across Filers
Q1 2025 holders
215
Q2 2025 holders
254
Holder diff
39
| Investor | Q1 2025 Shares | Q2 2025 Shares | Share Diff | Share Chg % | Q1 2025 value | Q2 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend