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SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•105 filings

KVYO

Klaviyo, Inc.

Net sales of $93.8M over the last 3 months

10 sellers account for the net balance. There is no cluster of three distinct buyers within 30 days. We found no CEO/CFO purchases over 12 months.

How to read this signal

Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.

JSON example

3-month balance

−$93,822,858

0 buyers · 10 sellers

12-month purchases

$300,311

1 distinct insiders

12-month sales

$193,291,148

13 distinct insiders

Highlighted alerts

2

98 Rule 10b5-1 trades treated as informational

Buying cluster · 30 days

Fewer than three distinct buyers

CEO/CFO purchases · 12 months

No executive purchases found

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Form 4 raw → Raspberry

The value is in what we do not call a signal.

The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.

100
Raw transactions
Everything returned by the filing
100
Voluntary view
P/S trades after deterministic checks
23
Administrative noise
Stored, never alerted
70
10b5-1
Shown as informational
SEC ownership XML facts
Code
G
Shares
17,885
Price
$0.00
Footnotes
6

These transactions were effected by the Reporting Person pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 1, 2026. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $17.03 to $17.63 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Shares are owned directly by Hodgkins Trust for the benefit of the Reporting Person and the Reporting Person's family, and of which the trustee is an independent institution. The Reporting Person disclaims Section 16 beneficial ownership of such shares except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed to be an admission that he has beneficial ownership of such shares for Section 16 or any other purpose. The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $17.00 to $17.63 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Shares held by Hodgkins LLC, of which the Reporting Person serves as manager. The Reporting Person disclaims Section 16 beneficial ownership of such shares except to the extent of his pecuniary interest therein, if any, and this report shall not be deemed to be an admission that he has beneficial ownership of such shares for Section 16 or any other purpose. Represents a bona fide gift of 17,885 shares of stock from Hodgkins LLC, of which Reporting Person serves as manager, to a donor-advised fund pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 1, 2026.

Raspberry interpretation
Informational — no alert

Reason: administrative_code. The trade is reported under a Rule 10b5-1 plan.

Verify in SEC EDGAR

Recent transactions

Voluntary purchases and sales; administrative noise stays hidden.

100 transactions

Hallen Ed

Director

Sale 10b5-1
Shares
58,815
Price
$17.40
Value
$1,023,381
Open SEC filing

Hallen Ed

Director

Sale 10b5-1
Shares
38,667
Price
$17.40
Value
$672,806
Open SEC filing

Hallen Ed

Director

Sale 10b5-1
Shares
800
Price
$17.02
Value
$13,616
Open SEC filing

Hallen Ed

Director

Sale 10b5-1
Shares
500
Price
$17.02
Value
$8,510
Open SEC filing

St. Ledger Susan

Director

Sale 10b5-1
Shares
2,328
Price
$15.93
Value
$37,085
Open SEC filing

Hallen Ed

Director

Sale 10b5-1
Shares
59,615
Price
$20.49
Value
$1,221,511
Open SEC filing

Hallen Ed

Director

Sale 10b5-1
Shares
39,167
Price
$20.47
Value
$801,748
Open SEC filing

Edmond Landon

Chief Legal Officer

Sale 10b5-1
Shares
8,103
Price
$20.44
Value
$165,625
Open SEC filing

Edmond Landon

Chief Legal Officer

Sale 10b5-1
Shares
53,473
Price
$20.01
Value
$1,069,995
Open SEC filing

Whalen Amanda

Chief Financial Officer

Sale 10b5-1
Shares
14,000
Price
$18.47
Value
$258,580
Open SEC filing

SUMMIT PARTNERS L P

10% owner

SaleAlert
Shares
5,000,000
Price
$17.71
Value
$88,550,000
Open SEC filing

Whalen Amanda

Chief Financial Officer

Sale 10b5-1
Shares
14,000
Price
$17.75
Value
$248,500
Open SEC filing

Whalen Amanda

Chief Financial Officer

Sale 10b5-1
Shares
14,000
Price
$13.23
Value
$185,220
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
212,529
Price
$14.61
Value
$3,105,049
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
200,000
Price
$14.88
Value
$2,976,000
Open SEC filing

St. Ledger Susan

Director

Sale 10b5-1
Shares
9,334
Price
$14.27
Value
$133,196
Open SEC filing

Whalen Amanda

Chief Financial Officer

Sale 10b5-1
Shares
14,000
Price
$14.26
Value
$199,640
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
141,316
Price
$14.46
Value
$2,043,429
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
58,684
Price
$14.97
Value
$878,499
Open SEC filing

Edmond Landon

Chief Legal Officer

Sale 10b5-1
Shares
9,623
Price
$20.00
Value
$192,460
Open SEC filing

Whalen Amanda

Chief Financial Officer

Sale 10b5-1
Shares
14,000
Price
$18.54
Value
$259,560
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
90,858
Price
$16.94
Value
$1,539,135
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
109,142
Price
$17.39
Value
$1,897,979
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
200,000
Price
$18.63
Value
$3,726,000
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
200,000
Price
$19.42
Value
$3,884,000
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
200,000
Price
$18.17
Value
$3,634,000
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
102,621
Price
$19.15
Value
$1,965,192
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
97,379
Price
$19.60
Value
$1,908,628
Open SEC filing

Edmond Landon

Chief Legal Officer

Sale 10b5-1
Shares
14,366
Price
$20.15
Value
$289,475
Open SEC filing

Whalen Amanda

Chief Financial Officer

Sale 10b5-1
Shares
5,077
Price
$19.34
Value
$98,189
Open SEC filing

Whalen Amanda

Chief Financial Officer

Sale 10b5-1
Shares
8,923
Price
$19.72
Value
$175,962
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
700
Price
$19.34
Value
$13,538
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
206,127
Price
$19.96
Value
$4,114,295
Open SEC filing

Edmond Landon

Chief Legal Officer

Sale 10b5-1
Shares
15,093
Price
$20.16
Value
$304,275
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
45,978
Price
$17.90
Value
$823,006
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
154,022
Price
$18.86
Value
$2,904,855
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
39,644
Price
$16.38
Value
$649,369
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
160,356
Price
$16.86
Value
$2,703,602
Open SEC filing

Whalen Amanda

Chief Financial Officer

Sale 10b5-1
Shares
4,719
Price
$18.63
Value
$87,915
Open SEC filing

Whalen Amanda

Chief Financial Officer

Sale 10b5-1
Shares
9,281
Price
$19.01
Value
$176,432
Open SEC filing

Ceran Jennifer

Director

PurchaseAlert
Shares
16,339
Price
$18.38
Value
$300,311
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
4,530
Price
$24.94
Value
$112,978
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
150,689
Price
$25.34
Value
$3,818,459
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
796
Price
$23.29
Value
$18,539
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
167,130
Price
$24.16
Value
$4,037,861
Open SEC filing

Whalen Amanda

Chief Financial Officer

Sale 10b5-1
Shares
6,174
Price
$25.52
Value
$157,560
Open SEC filing

Whalen Amanda

Chief Financial Officer

Sale 10b5-1
Shares
7,826
Price
$26.08
Value
$204,102
Open SEC filing

Edmond Landon

Chief Legal Officer

Sale 10b5-1
Shares
4,399
Price
$25.52
Value
$112,262
Open SEC filing

Edmond Landon

Chief Legal Officer

Sale 10b5-1
Shares
5,601
Price
$26.08
Value
$146,074
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
90,327
Price
$27.29
Value
$2,465,024
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
50,319
Price
$27.62
Value
$1,389,811
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
16,649
Price
$30.01
Value
$499,636
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
2,382
Price
$28.52
Value
$67,935
Open SEC filing

Bialecki Andrew

Co-Chief Executive Officer

Sale 10b5-1
Shares
135,122
Price
$28.92
Value
$3,907,728
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
6,934
Price
$31.94
Value
$221,472
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
93,066
Price
$33.05
Value
$3,075,831
Open SEC filing

Edmond Landon

Chief Legal Officer

Sale 10b5-1
Shares
472
Price
$30.55
Value
$14,420
Open SEC filing

Edmond Landon

Chief Legal Officer

Sale 10b5-1
Shares
13,718
Price
$31.41
Value
$430,882
Open SEC filing

Whalen Amanda

Chief Financial Officer

Sale 10b5-1
Shares
460
Price
$30.59
Value
$14,071
Open SEC filing

Whalen Amanda

Chief Financial Officer

Sale 10b5-1
Shares
13,540
Price
$31.41
Value
$425,291
Open SEC filing

Hallen Ed

Director

Sale 10b5-1
Shares
82,672
Price
$30.37
Value
$2,510,749
Open SEC filing

Hallen Ed

Director

Sale 10b5-1
Shares
34,878
Price
$30.35
Value
$1,058,547
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
100,000
Price
$30.40
Value
$3,040,000
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
138,648
Price
$29.04
Value
$4,026,338
Open SEC filing

Rowland Stephen Eric

President

Sale 10b5-1
Shares
3,191
Price
$29.01
Value
$92,571
Open SEC filing

Rowland Stephen Eric

President

Sale 10b5-1
Shares
3,913
Price
$29.81
Value
$116,647
Open SEC filing

Hallen Ed

Director

Sale 10b5-1
Shares
600
Price
$30.15
Value
$18,090
Open SEC filing

Hallen Ed

Director

Sale 10b5-1
Shares
157
Price
$30.13
Value
$4,730
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
17,777
Price
$30.00
Value
$533,310
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
82,223
Price
$30.12
Value
$2,476,557
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
800
Price
$28.84
Value
$23,072
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
130,562
Price
$29.42
Value
$3,841,134
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
952
Price
$30.00
Value
$28,560
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
142,045
Price
$28.62
Value
$4,065,328
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
144,717
Price
$27.76
Value
$4,017,344
Open SEC filing

Edmond Landon

Chief Legal Officer

Sale 10b5-1
Shares
4,020
Price
$26.97
Value
$108,419
Open SEC filing

Edmond Landon

Chief Legal Officer

Sale 10b5-1
Shares
10,374
Price
$27.83
Value
$288,708
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
147,329
Price
$27.16
Value
$4,001,456
Open SEC filing

Rowland Stephen Eric

President

Sale 10b5-1
Shares
7,104
Price
$27.39
Value
$194,579
Open SEC filing

Galvin Carmel

Chief People Officer

Sale 10b5-1
Shares
4,036
Price
$27.11
Value
$109,416
Open SEC filing

Galvin Carmel

Chief People Officer

Sale 10b5-1
Shares
7,120
Price
$27.74
Value
$197,509
Open SEC filing

Whalen Amanda

Chief Financial Officer

Sale 10b5-1
Shares
300
Price
$27.89
Value
$8,367
Open SEC filing

Whalen Amanda

Chief Financial Officer

Sale 10b5-1
Shares
14,700
Price
$28.61
Value
$420,567
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
140,464
Price
$29.74
Value
$4,177,399
Open SEC filing

Hallen Ed

Director

Sale 10b5-1
Shares
2,266
Price
$30.00
Value
$67,980
Open SEC filing

Hallen Ed

Director

Sale 10b5-1
Shares
545
Price
$30.00
Value
$16,350
Open SEC filing

Hallen Ed

Director

Sale 10b5-1
Shares
50,920
Price
$30.04
Value
$1,529,637
Open SEC filing

Hallen Ed

Director

Sale 10b5-1
Shares
8,572
Price
$30.05
Value
$257,589
Open SEC filing

Rowland Stephen Eric

President

Sale 10b5-1
Shares
7,105
Price
$24.35
Value
$173,007
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
163,331
Price
$24.37
Value
$3,980,376
Open SEC filing

Whalen Amanda

Chief Financial Officer

Sale 10b5-1
Shares
5,192
Price
$24.45
Value
$126,944
Open SEC filing

Whalen Amanda

Chief Financial Officer

Sale 10b5-1
Shares
9,808
Price
$25.33
Value
$248,437
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
14,618
Price
$25.07
Value
$366,473
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
144,890
Price
$25.32
Value
$3,668,615
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
28,811
Price
$27.70
Value
$798,065
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
39,733
Price
$28.22
Value
$1,121,265
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
44,672
Price
$29.03
Value
$1,296,828
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
6,048
Price
$30.28
Value
$183,133
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
17,960
Price
$31.24
Value
$561,070
Open SEC filing

Bialecki Andrew

Chief Executive Officer

Sale 10b5-1
Shares
29,805
Price
$35.01
Value
$1,043,473
Open SEC filing

“Alert” means a voluntary, unscheduled transaction according to the filing; it is not an investment recommendation. Official source: SEC EDGAR.