657 institutional investment managers reported MTSI positions in their Form 13F filings for Q2 2026, holding 73,260,781 shares worth $27.7B in total. FMR LLC reported the largest position.

Are funds buying or selling MTSI?

In Q2 2026, 180 managers opened new MTSI positions, 210 added, 189 trimmed and 40 sold out. Managers that filed in both quarters sold a net 734,823 shares.

How current is this MTSI institutional ownership data?

It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.

Funds · MTSI

Who owns MTSI?

Institutional ownership of MACOM Technology Solutions Holdings Inc. from Form 13F, Q2 2026

657 institutional managers reported holding MACOM Technology Solutions Holdings Inc. (MTSI) in Form 13F filings for Q2 2026, with 73,260,781 shares worth $27.7B. The largest reported holder was FMR LLC. Managers that filed both quarters cut a net 734,823 shares (-1.0%). 180 opened new positions and 40 sold out.

Funds holding: 657
Value held: $27.7B
New / sold out: 180 / 40
Net shares, same filers: -1.0%

Holdings as of June 30, 2026, the end of Q2 2026. Managers have 45 days after a quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.

Largest holders of MTSI

Fund	Value	Share of 13F holdings	Shares	Move
FMR LLC	$4.0B	14.4%	10,527,144	Trimmed
BlackRock, Inc.	$3.6B	13.0%	9,512,899	Added
Vanguard Portfolio Management LLC	$1.4B	4.9%	3,605,324	Added
Vanguard Capital Management LLC	$1.2B	4.2%	3,064,683	Added
T. Rowe Price Investment Management, Inc.	$1.1B	3.9%	2,850,185	Trimmed
State Street Corp	$860M	3.1%	2,262,242	Added
Invesco Ltd.	$818M	2.9%	2,149,581	Trimmed
JPMorgan Chase & Co	$793M	2.9%	2,125,091	Added
Geode Capital Management, LLC	$536M	1.9%	1,409,741	Added
Wellington Management Group LLP	$459M	1.6%	1,205,711	Trimmed
Massachusetts Financial Services Co	$444M	1.6%	1,166,242	Added
Capital Research Global Investors	$413M	1.5%	1,086,149	Trimmed
Norges Bank	$379M	1.4%	996,731	New
Whale Rock Capital Management LLC	$376M	1.3%	988,785	Trimmed
Price T Rowe Associates Inc	$373M	1.3%	980,134	Added
Neuberger Berman Group LLC	$314M	1.1%	826,969	Added
Goldman Sachs Group Inc	$309M	1.1%	812,421	Added
Franklin Resources Inc	$304M	1.1%	798,891	Added
Qube Research & Technologies Ltd	$301M	1.1%	790,678	New
Polar Capital Holdings Plc	$285M	1.0%	750,517	Trimmed
Jupiter Topco LLC	$257M	0.9%	674,790	First report
Charles Schwab Investment Management Inc	$254M	0.9%	666,659	Added
Bank of America Corp	$248M	0.9%	651,293	Added
GW&K Investment Management, LLC	$241M	0.9%	634,742	Trimmed
Rafferty Asset Management, LLC	$241M	0.9%	632,776	Added

Share of 13F holdings is each fund's shares as a share of the 73,260,781 MTSI shares all 13F filers reported, not of shares outstanding.

Biggest buyers in Q2 2026

Norges Bank New+$379M
BlackRock, Inc. Added+$360M
Qube Research & Technologies Ltd New+$301M
Jane Street Group, LLC Added+$202M
Clearbridge Investments, LLC New+$168M
Evergreen Quality Fund GP, Ltd. New+$151M
Goldman Sachs Group Inc Added+$145M
Massachusetts Financial Services Co Added+$128M
Allspring Global Investments Holdings, LLC New+$127M
Franklin Resources Inc Added+$113M

Biggest sellers in Q2 2026

T. Rowe Price Investment Management, Inc. Trimmed-$622M
Invesco Ltd. Trimmed-$580M
Citadel Advisors LLC Trimmed-$208M
UBS Group AG Trimmed-$160M
Artisan Partners Limited Partnership Trimmed-$159M
Wellington Management Group LLP Trimmed-$130M
Nomura Asset Management International Inc. Trimmed-$125M
Barclays PLC Trimmed-$102M
Dimensional Fund Advisors LP Trimmed-$92.3M
GW&K Investment Management, LLC Trimmed-$77.7M

The change in shares since the quarter before, adjusted for stock splits and priced at the Q2 2026 value per share. Funds bought $3.7B and sold $3.9B; 210 added and 189 trimmed.

Schedule 13D and 13G filings on MTSI

Owners of more than 5% must file within days, so these can be newer than the 13F data.

2025-02-14PRICE T ROWE ASSOCIATES INC /MD/ SCHEDULE 13G filed by MACOM Technology Solutions Holdings Inc.Schedule 13G

Questions about MTSI ownership

Who owns MTSI stock?: 657 institutional investment managers reported MTSI positions in their Form 13F filings for Q2 2026, holding 73,260,781 shares worth $27.7B in total. FMR LLC reported the largest position.
Are funds buying or selling MTSI?: In Q2 2026, 180 managers opened new MTSI positions, 210 added, 189 trimmed and 40 sold out. Managers that filed in both quarters sold a net 734,823 shares.
How current is this MTSI institutional ownership data?: It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.

From the SEC's Form 13F data sets for Q2 2026: every 13F holdings report, matched to MTSI by CUSIP. Options are left out. MTSI news and filings · MTSI insider trades · Top funds