Summit Partners’s MACOM Technology Solutions MTSI Stock Holding History

Summit Partners’s Portfolio MTSI Stock Details MTSI Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$2.28M	Sell	6,005 -43,268	-88%	-$14.4M	0.38%	5
2026 Q1	$10.9M	Buy	49,273 +1,623	+3%	+$362K	1.63%	5
2025 Q4	$8.16M	Hold	47,650	–	–	0.78%	6
2025 Q3	$5.93M	Hold	47,650	–	–	0.64%	7
2025 Q2	$6.83M	Hold	47,650	–	–	0.48%	6
2025 Q1	$4.78M	Buy	47,650 +2,138	+5%	+$260K	0.3%	7
2024 Q4	$5.91M	Hold	45,512	–	–	0.26%	6
2024 Q3	$5.06M	Hold	45,512	–	–	0.23%	8
2024 Q2	$5.07M	Hold	45,512	–	–	0.3%	8
2024 Q1	$4.35M	Buy	45,512 +2,244	+5%	+$198K	0.24%	9
2023 Q4	$4.02M	Hold	43,268	–	–	0.15%	10
2023 Q3	$3.53M	Hold	43,268	–	–	0.12%	10
2023 Q2	$2.84M	Hold	43,268	–	–	0.21%	9
2023 Q1	$3.07M	Buy	43,268 +2,768	+7%	+$187K	0.22%	9
2022 Q4	$2.55M	Hold	40,500	–	–	0.21%	9
2022 Q3	$2.1M	Sell	40,500 -850,311	-95%	-$46.6M	0.15%	9
2022 Q2	$41.1M	Hold	890,811	–	–	2.75%	8
2022 Q1	$53.3M	Hold	890,811	–	–	2.37%	9
2021 Q4	$69.8M	Buy	890,811 +2,093	+0.2%	+$151K	2.23%	9
2021 Q3	$57.7M	Hold	888,718	–	–	1.99%	8
2021 Q2	$56.9M	Hold	888,718	–	–	2.96%	5
2021 Q1	$51.6M	Hold	888,718	–	–	8.23%	4
2020 Q4	$48.9M	Buy	888,718 +855,725	+2,594%	+$36.5M	10.01%	4
2020 Q3	$1.12M	Hold	32,993	–	–	0.32%	4
2020 Q2	$1.13M	Hold	32,993	–	–	0.54%	3
2020 Q1	$625K	Hold	32,993	–	–	0.35%	4
2019 Q4	$878K	Buy	32,993 +6,656	+25%	+$159K	0.42%	4
2019 Q3	$566K	Hold	26,337	–	–	0.11%	7
2019 Q2	$398K	Hold	26,337	–	–	0.07%	7
2019 Q1	$440K	Hold	26,337	–	–	0.1%	6
2018 Q4	$382K	Buy	26,337 +6,086	+30%	+$98.1K	0.06%	6
2018 Q3	$417K	Hold	20,251	–	–	0.06%	7
2018 Q2	$4.67M	Hold	20,251	–	–	0.58%	7
2018 Q1	$336K	Hold	20,251	–	–	0.03%	5
2017 Q4	$659K	Buy	20,251 +2,835	+16%	+$103K	0.08%	5
2017 Q3	$777K	Hold	17,416	–	–	0.57%	4
2017 Q2	$971K	Hold	17,416	–	–	0.71%	4
2017 Q1	$842K	Sell	17,416 -1,201,635	-99%	-$56.2M	0.36%	5
2016 Q4	$56.4M	Buy	1,219,051 +3,113	+0.3%	+$136K	15.34%	4
2016 Q3	$51.5M	Hold	1,215,938	–	–	11.35%	3
2016 Q2	$40.1M	Sell	1,215,938 -1,400,000	-54%	-$53.1M	18.21%	3
2016 Q1	$115M	Sell	2,615,938 -3,600,000	-58%	-$141M	66.06%	1
2015 Q4	$254M	Buy	6,215,938 +3,139	+0.1%	+$109K	79.7%	1
2015 Q3	$180M	Hold	6,212,799	–	–	75.17%	1
2015 Q2	$238M	Sell	6,212,799 -34,565	-0.6%	-$1.28M	78.78%	1
2015 Q1	$233M	Sell	6,247,364 -2,235,000	-26%	-$74.8M	84.04%	1
2014 Q4	$265M	Buy	8,482,364 +4,347	+0.1%	+$108K	85.28%	1
2014 Q3	$185M	Buy	8,478,017 +6,817	+0.1%	+$152K	44.53%	1
2014 Q2	$190M	Hold	8,471,200	–	–	44.96%	1
2014 Q1	$174M	Hold	8,471,200	–	–	58.9%	1
2013 Q4	$144M	Hold	8,471,200	–	–	21.95%	2
2013 Q3	$144M	Hold	8,471,200	–	–	16.62%	3
2013 Q2	$124M	Buy	+8,471,200	New	+$119M	14.37%	3

Other funds holding MTSI

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return

Summit Partners's MTSI Position: Q2 2026 in Review

Summit Partners reduced its MACOM Technology Solutions (MTSI) stake by 88% in Q2 2026, selling an estimated $14.4M and leaving 6,005 shares worth $2.28M. The position accounts for 0.38% of the portfolio, ranked #5.

Summit Partners first reported a position in MTSI in Q2 2013 and has held it in 53 quarters since. The position peaked at $265M in Q4 2014. 656 funds tracked by Wall St. Rank hold MTSI as of Q2 2026.

Summit Partners held 6,005 shares of MACOM Technology Solutions worth $2.28M as of Q2 2026.
Summit Partners sold 43,268 MACOM Technology Solutions shares in Q2 2026, an estimated $14.4M.
MACOM Technology Solutions made up 0.38% of Summit Partners's portfolio in Q2 2026, its #5 holding.
Summit Partners first reported a position in MACOM Technology Solutions in Q2 2013 and has held it in 53 quarters since.
Summit Partners's MACOM Technology Solutions position peaked at $265M in Q4 2014.
656 funds tracked by Wall St. Rank held MACOM Technology Solutions as of Q2 2026.

Based on Summit Partners's 13F filing for Q2 2026, filed 30 Jul 2026.