Summit Partners L P (CIK 0000830588)

Latest company ownership

Shares held
33,524,715
Last filed at
Aug 20, 2025
Confidence Score
43.4
2025Q4
Confidence Score History
2021Q2 2025Q4
ATEN - A10 Networks, Inc.
Role: 10% Owner
Shares held
5,388,206
Last filed at
Sep 9, 2022
Confidence Score
50.0
2025Q4
Confidence Score History
2021Q4 2025Q4
UI - Ubiquiti Inc.
Role: Other
Shares held
4,764,079
Last filed at
Sep 13, 2013
Confidence Score
50.0
2025Q4
Confidence Score History
2011Q4 2025Q4
CPAY - CORPAY, INC.
Role: Other
Shares held
4,132,156
Last filed at
Sep 12, 2013
Confidence Score
50.0
2025Q4
Confidence Score History
2012Q4 2025Q4
KVYO - Klaviyo, Inc.
Role: 10% Owner
Shares held
4,000,000
Last filed at
Sep 10, 2025
Confidence Score
37.7
2025Q4
Confidence Score History
2023Q3 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Sep 8, 2025 Sep 10, 2025 Klaviyo, Inc. 10% Owner Sell 15.0 -4,000,000 -100.00% ✗ $127.5M
Aug 25, 2025 Aug 27, 2025 Klaviyo, Inc. 10% Owner Sell 15.0 -975,000 -100.00% ✗ $29.3M
Aug 18, 2025 Aug 20, 2025 LifeStance Health Group, Inc. 10% Owner Sell 15.0 -8,407,643 -20.05% ✗ $42.6M
Aug 13, 2025 Aug 15, 2025 Klaviyo, Inc. 10% Owner Sell 15.0 -6,500,000 -92.86% ✗ $195.1M
Jun 4, 2025 Jun 5, 2025 Klaviyo, Inc. 10% Owner Sell 15.0 -4,000,000 -100.00% ✗ $133.4M
May 19, 2025 May 20, 2025 Klaviyo, Inc. 10% Owner Sell 15.0 -4,000,000 -100.00% ✗ $132M
Mar 14, 2025 Mar 17, 2025 Klaviyo, Inc. 10% Owner Sell 15.0 -2,000,000 -100.00% ✗ $64.9M
Dec 9, 2024 Dec 11, 2024 Klaviyo, Inc. 10% Owner Sell 15.0 -2,100,000 -100.00% ✗ $82.2M
Nov 14, 2024 Nov 18, 2024 Klaviyo, Inc. 10% Owner Sell 15.0 -3,153,293 -90.09% ✗ $114.1M
Sep 13, 2024 Sep 17, 2024 Klaviyo, Inc. 10% Owner Sell 17.5 -113,561 -100.00% ✗ $3.6M
Sep 12, 2024 Sep 16, 2024 Klaviyo, Inc. 10% Owner Sell 17.5 -107,205 -100.00% ✗ $3.4M
Sep 11, 2024 Sep 13, 2024 Klaviyo, Inc. 10% Owner Sell 22.5 -2,942 -100.00% ✗ $91.2K
Sep 3, 2024 Sep 5, 2024 Klaviyo, Inc. 10% Owner Sell 22.5 -6,039 -100.00% ✗ $190.4K
Aug 30, 2024 Sep 4, 2024 Klaviyo, Inc. 10% Owner Sell 26.3 -1,300 -100.00% ✗ $41.1K
Aug 29, 2024 Sep 3, 2024 Klaviyo, Inc. 10% Owner Sell 20.0 -16,931 -100.00% ✗ $534.2K
Aug 28, 2024 Aug 30, 2024 Klaviyo, Inc. 10% Owner Sell 20.0 -27,445 -100.00% ✗ $869.5K
Aug 27, 2024 Aug 29, 2024 Klaviyo, Inc. 10% Owner Sell 17.5 -67,436 -100.00% ✗ $2.2M
Aug 26, 2024 Aug 28, 2024 Klaviyo, Inc. 10% Owner Sell 17.5 -90,502 -100.00% ✗ $2.9M
Aug 23, 2024 Aug 27, 2024 Klaviyo, Inc. 10% Owner Sell 16.3 -305,638 -100.00% ✗ $9.9M
Aug 22, 2024 Aug 26, 2024 Klaviyo, Inc. 10% Owner Sell 17.5 -82,499 -100.00% ✗ $2.6M
Aug 21, 2024 Aug 23, 2024 Klaviyo, Inc. 10% Owner Sell 17.5 -113,850 -100.00% ✗ $3.6M
Aug 20, 2024 Aug 22, 2024 Klaviyo, Inc. 10% Owner Sell 17.5 -135,902 -100.00% ✗ $4.3M
Aug 16, 2024 Aug 20, 2024 Klaviyo, Inc. 10% Owner Sell 16.3 -242,601 -100.00% ✗ $7.7M
May 24, 2024 May 29, 2024 LifeStance Health Group, Inc. Other Sell 15.0 -3,802,345 -8.31% ✗ $22.4M
Oct 23, 2023 Oct 23, 2023 Klaviyo, Inc. 10% Owner Sell 15.0 -1,770,318 -100.00% ✗ $50.1M
Sep 22, 2023 Sep 22, 2023 Klaviyo, Inc. 10% Owner Sell 15.0 -4,919,165 -100.00% ✗ $139.3M
Sep 8, 2022 Sep 9, 2022 A10 Networks, Inc. 10% Owner Sell 15.0 -3,500,000 -39.38% ✗ $44.6M
Dec 7, 2021 Dec 10, 2021 A10 Networks, Inc. Other Sell 15.0 -700,000 -7.31% ✗ $10.5M
Jun 25, 2021 Jun 29, 2021 LifeStance Health Group, Inc. Other Sell 15.0 -1,140,704 -2.43% ✗ $19.4M
Jun 14, 2021 Jun 16, 2021 LifeStance Health Group, Inc. Other Sell 15.0 -1,368,844 -2.84% ✗ $23.3M
Sep 11, 2013 Sep 13, 2013 Ubiquiti Inc. Other Sell 15.0 -1,300,000 -21.44% ✗ $42.9M
Sep 10, 2013 Sep 12, 2013 CORPAY, INC. Other Sell 15.0 -2,000,000 -32.61% ✗ $209.7M
Sep 4, 2013 Sep 6, 2013 Ubiquiti Inc. Other Sell 15.0 -2,500,000 -29.19% ✗ $78.5M
Jun 13, 2013 Jun 17, 2013 Ubiquiti Inc. Other Sell 16.3 -531,464 -5.84% ✗ $8.5M
Jun 4, 2013 Jun 6, 2013 Ubiquiti Inc. Other Sell 15.0 -6,000,000 -39.75% ✗ $96M
May 14, 2013 May 16, 2013 CORPAY, INC. Other Sell 15.0 -2,500,000 -28.96% ✗ $206M
Mar 12, 2013 Mar 13, 2013 CORPAY, INC. Other Sell 15.0 -1,500,000 -14.80% ✗ $105.8M
Mar 4, 2013 Mar 6, 2013 Ubiquiti Inc. Other Sell 15.0 -1,000,000 -6.21% ✗ $13.3M
Dec 3, 2012 Dec 5, 2012 CORPAY, INC. Other Sell 15.0 -4,908,014 -32.63% ✗ $254.8M
Nov 29, 2012 Dec 3, 2012 Ubiquiti Inc. Other Sell 15.0 -1,000,000 -5.85% ✗ $11.6M
Nov 9, 2011 Nov 10, 2011 Ubiquiti Inc. Other Sell 15.0 -1,055,734 -4.99% ✗ $15.8M
Oct 19, 2011 Oct 21, 2011 Ubiquiti Inc. Other Sell 15.0 -2,841,652 -11.84% ✗ $42.6M