Summit Partners L P
Summit Partners L P
Summit Partners L P insider trades: Klaviyo (KVYO) stock buys and sales
Klaviyo Last trade Aug 11, 2026 100 Form 4 filings
$88.5M
Sold, last 12 months
1 sale
$0
Bought, last 12 months
0 buys
72
Open-market trades
since 2005
16
Companies
last trade 2026
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Summit Partners L P reports to the SEC
KVYOKlaviyo
Insider · last filing Aug 13, 2026
-$1.20B
SBDSSolo Brands
Insider · last filing Jan 5, 2026
No market trades
LFSTLifeStance Health Group
Insider · last filing Aug 20, 2025
-$107.7M
ESMTEngageSmart
10% Owner · last filing Mar 7, 2023
-$35.0M
ATENA10 Networks
Insider · last filing Sep 9, 2022
-$10.5M
CASACasa Systems
10% Owner · last filing Apr 30, 2018
-$117.9M
+$3.3M
and 10 more companies
Open-market buys and sales
72 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Aug 11, 2026 | KVYO | ↓ Sell | 5,000,000 | $17.71 | $88.5M | Indirect | Aug 13, 2026 (2d) |
| Sep 8, 2025 | KVYO | ↓ Sell | 4,000,000 | $31.87 | $127.5M | Indirect | Sep 10, 2025 (2d) |
| Aug 25, 2025 | KVYO | ↓ Sell | 975,000 | $30.01 | $29.3M | Indirect | Aug 27, 2025 (2d) |
| Aug 18, 2025 | LFST | ↓ Sell | 8,407,643 | $5.07 | $42.6M | Direct | Aug 20, 2025 (2d) |
| Aug 13, 2025 | KVYO | ↓ Sell | 6,500,000 | $30.01 | $195.1M | Indirect | Aug 15, 2025 (2d) |
| Jun 4, 2025 | KVYO | ↓ Sell | 4,000,000 | $33.35 | $133.4M | Indirect | Jun 5, 2025 (1d) |
| May 19, 2025 | KVYO | ↓ Sell | 4,000,000 | $33.00 | $132.0M | Indirect | May 20, 2025 (1d) |
| Mar 14, 2025 | KVYO | ↓ Sell | 2,000,000 | $32.44 | $64.9M | Indirect | Mar 17, 2025 (3d) |
| Dec 9, 2024 | KVYO | ↓ Sell | 2,100,000 | $39.15 | $82.2M | Indirect | Dec 11, 2024 (2d) |
| Nov 14, 2024 | KVYO | ↓ Sell | 3,153,293 | $36.20 | $114.1M | Indirect | Nov 18, 2024 (4d) |
| Sep 13, 2024 | KVYO | ↓ Sell | 113,561 | $31.47 | $3.6M | Indirect | Sep 17, 2024 (4d) |
| Sep 12, 2024 | KVYO | ↓ Sell | 107,205 | $31.33 | $3.4M | Indirect | Sep 16, 2024 (4d) |
| Sep 11, 2024 | KVYO | ↓ Sell | 2,942 | $31.01 | $91K | Indirect | Sep 13, 2024 (2d) |
| Sep 3, 2024 | KVYO | ↓ Sell | 6,039 | $31.53 | $190K | Indirect | Sep 5, 2024 (2d) |
| Aug 30, 2024 | KVYO | ↓ Sell | 1,300 | $31.64 | $41K | Indirect | Sep 4, 2024 (5d) |
| Aug 29, 2024 | KVYO | ↓ Sell | 16,931 | $31.55 | $534K | Indirect | Sep 3, 2024 (5d) |
| Aug 28, 2024 | KVYO | ↓ Sell | 27,445 | $31.68 | $869K | Indirect | Aug 30, 2024 (2d) |
| Aug 27, 2024 | KVYO | ↓ Sell | 67,436 | $32.29 | $2.2M | Indirect | Aug 29, 2024 (2d) |
| Aug 26, 2024 | KVYO | ↓ Sell | 90,502 | $32.27 | $2.9M | Indirect | Aug 28, 2024 (2d) |
| Aug 23, 2024 | KVYO | ↓ Sell | 305,638 | $32.33 | $9.9M | Indirect | Aug 27, 2024 (4d) |
| Aug 22, 2024 | KVYO | ↓ Sell | 82,499 | $31.76 | $2.6M | Indirect | Aug 26, 2024 (4d) |
| Aug 21, 2024 | KVYO | ↓ Sell | 113,850 | $31.76 | $3.6M | Indirect | Aug 23, 2024 (2d) |
| Aug 20, 2024 | KVYO | ↓ Sell | 135,902 | $31.95 | $4.3M | Indirect | Aug 22, 2024 (2d) |
| Aug 16, 2024 | KVYO | ↓ Sell | 242,601 | $31.78 | $7.7M | Indirect | Aug 20, 2024 (4d) |
| May 24, 2024 | LFST | ↓ Sell | 3,802,345 | $5.89 | $22.4M | Indirect | May 29, 2024 (5d) |
| Oct 23, 2023 | KVYO | ↓ Sell | 1,770,318 | $28.32 | $50.1M | Indirect | Oct 23, 2023 (0d) |
| Sep 22, 2023 | KVYO | ↓ Sell | 4,919,165 | $28.32 | $139.3M | Indirect | Sep 22, 2023 (0d) |
| Mar 7, 2023 | ESMT | ↓ Sell | 252,727 | $18.19 | $4.6M | Indirect | Mar 7, 2023 (0d) |
| Mar 3, 2023 | ESMT | ↓ Sell | 1,669,052 | $18.19 | $30.4M | Indirect | Mar 3, 2023 (0d) |
| Dec 7, 2021 | ATEN | ↓ Sell | 700,000 | $15.05 | $10.5M | Indirect | Dec 10, 2021 (3d) |
| Jun 25, 2021 | LFST | ↓ Sell | 1,140,704 | $17.01 | $19.4M | Indirect | Jun 29, 2021 (4d) |
| Jun 14, 2021 | LFST | ↓ Sell | 1,368,844 | $17.01 | $23.3M | Indirect | Jun 16, 2021 (2d) |
| Apr 30, 2018 | CASA | ↓ Sell | 4,717,520 | $25.00 | $117.9M | Indirect | Apr 30, 2018 (0d) |
| Dec 19, 2017 | CASA | ↑ Buy | 250,000 | $13.00 | $3.3M | Direct | Dec 19, 2017 (0d) |
| Jan 28, 2016 | MTSI | ↓ Sell | 2,700,000 | $37.70 | $101.8M | See Remarks | Feb 1, 2016 (4d) |
| May 29, 2015 | MTSI | ↓ Sell | 34,565 | $38.32 | $1.3M | See Remarks. | Jun 2, 2015 (4d) |
| Feb 11, 2015 | MTSI | ↓ Sell | 2,235,000 | $28.57 | $63.9M | See Remarks. | Feb 11, 2015 (0d) |
| Dec 4, 2014 | FRF | ↓ Sell | 12,438,772 | $10.00 | $124.4M | See remarks. | Dec 4, 2014 (0d) |
| Sep 11, 2013 | UBNT | ↓ Sell | 1,300,000 | $33.00 | $42.9M | See Remarks. | Sep 13, 2013 (2d) |
| Sep 10, 2013 | FLT | ↓ Sell | 2,000,000 | $104.86 | $209.7M | See remarks. | Sep 12, 2013 (2d) |
| Sep 4, 2013 | UBNT | ↓ Sell | 2,500,000 | $31.41 | $78.5M | See Remarks. | Sep 6, 2013 (2d) |
| Jun 13, 2013 | UBNT | ↓ Sell | 531,464 | $16.00 | $8.5M | See Remarks. | Jun 17, 2013 (4d) |
| Jun 4, 2013 | UBNT | ↓ Sell | 6,000,000 | $16.00 | $96.0M | See Remarks. | Jun 6, 2013 (2d) |
| May 14, 2013 | FLT | ↓ Sell | 2,500,000 | $82.38 | $205.9M | See remarks. | May 16, 2013 (2d) |
| Mar 12, 2013 | FLT | ↓ Sell | 1,500,000 | $70.55 | $105.8M | See remarks. | Mar 13, 2013 (1d) |
| Mar 4, 2013 | UBNT | ↓ Sell | 1,000,000 | $13.31 | $13.3M | See Remarks. | Mar 6, 2013 (2d) |
| Dec 3, 2012 | FLT | ↓ Sell | 4,908,014 | $51.91 | $254.8M | See remarks. | Dec 5, 2012 (2d) |
| Nov 29, 2012 | UBNT | ↓ Sell | 1,000,000 | $11.55 | $11.6M | See Remarks. | Dec 3, 2012 (4d) |
| Jun 7, 2012 | FLT | ↓ Sell | 4,000,000 | $36.95 | $147.8M | See remarks. | Jun 11, 2012 (4d) |
| Mar 13, 2012 | FLT | ↓ Sell | 4,000,000 | $36.02 | $144.1M | See remarks. | Mar 14, 2012 (1d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other KVYO insiders
Open-market trades in the last 12 months
Ed Hallen
Director
6 sales
Oct 7, 2026
Ledger Susan St.
Director
2 sales
Sep 11, 2026
Landon Edmond
Chief Legal Officer
6 sales
Aug 31, 2026
Amanda Whalen
Chief Financial Officer
9 sales
Aug 14, 2026
Summit Investors GE Ix/Vc IV (uk), L.P.
Insider
1 sale
Aug 11, 2026
Summit Partners Growth Equity Fund IX-A, L.P.
Insider
1 sale
Aug 11, 2026
Summit Partners Growth Equity Fund IX-B, L.P.
Insider
1 sale
Aug 11, 2026
Summit Investors GE Ix/Vc IV, LLC
Insider
1 sale
Aug 11, 2026
About Summit Partners L P's insider trades
Summit Partners L P is an insider at Klaviyo (KVYO). Since Sep 22, 2005, it has reported 1 open-market purchase worth $3.3M and 71 sales worth $3.75B on SEC Form 4. In the last 12 months: 1 sale ($88.5M).
Its filings also include conversions (35 filings), other transactions (14 filings), grants and awards (11 filings), gifts (2 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every KVYO insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.