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MTSI · MACOM Technology Solutions Holdings, Inc. · Holdings

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$262.99 -2.80 (-1.05%)
S&P 400 member Russell 1000 member Rebalance outlook locked
Market Cap
$20.30B
Shares
76.37M
Volume · Oct 20 1.01M Avg daily vol (3M) 1.41M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP → See every holder of MTSI: 13F, 13D and 13G, insiders and funds →
Institutional holdings are being reconciled with SEC filings. Holder totals and changes may be incomplete until reconciliation finishes.
The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.
Holders: 657
Total Value: $28,211,078,454
Total Shares: 74,291,740
Showing 1–100 of 681 holdings by value · page 1 of 7

Institutional Ownership Trend

27 quarters

Superinvestors Holding MTSI

All superinvestors →
Joel Greenblatt $35,125,648

Holder Concentration

Across 660 13F filers
Top Holder
14.2%
Sep 2023 → Jun 2026 · range 9.6% – 14.3%
of institutional value
Top 5
39.9%
Sep 2023 → Jun 2026 · range 35.1% – 41.8%
of institutional value
Top 10
52.2%
Sep 2023 → Jun 2026 · range 51.1% – 55.5%
of institutional value
HHI
486
Sep 2023 → Jun 2026 · range 374 – 491
Broadly held

Who Holds MTSI

Last 8 quarters through Sep 30, 2026 (filing window open)

Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.

Jun 30, 2026, the newest closed quarter: 660 filers, like-for-like change -2.7%; actively managed books -6.9%; index-like books +8.9%.

Holder type Share Filers Change
Registered adviser 31.9% 368 -6.6%
Exempt adviser 1.3% 9 +74.4%
Adviser 10.4% 16 -30.3%
Bank 10.6% 32 +0.5%
Insurer 0.3% 3 -12.2%
Broker-dealer 0.1% 2 +46.0%
Benefit plan 0.4% 8 -1.9%
Non-US 2.3% 11 +16.7%
Holding company 32.8% 13 +5.4%
Unknown 9.9% 198 +20.1%

The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.

How the mix is measured

Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.

Excluded 6 holders with no observed 2026-03-31 13F and 4 holders with no observed 2026-06-30 13F. Compared across CIK changes: JANUS HENDERSON GROUP PLC continues as Jupiter Topco LLC.

Conviction and Crowding

660 13F filers, quarter ended Jun 30, 2026

Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.

Conviction holders
10
1.52% of filers hold it in their top 10
Mar 31, 2026: 13
Holders above 5%
3
median weight 0.020%
Mar 31, 2026: 1
Crowding
18.2%
of shares outstanding, 53rd percentile
Mar 31, 2026: 19.1%
Private-fund advisers
16.9%
of shares outstanding
Institutional ownership
95.8%
100.9% of the estimated free float above 100%: filers can report lent or client shares more than once
Top 10 holders
52.9%
of 13F shares, Herfindahl 0.050
Active holders
-6.9%
like-for-like share change of active filers
5% stakes on record
5
0 13D, 5 13G (4 institutional, 0 passive, 1 exempt)
How long holders have held it value-weighted 15.2 quarters
Under 1 year 19.5% 1 to 3 years 24.6% 3 years or more 55.9% Since coverage start 0.000%

Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).

Estimated Holder Cost Basis

Quarter ended Jun 30, 2026, on that quarter's share basis

Estimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.

Estimated avg cost
$190.74
estimated per share
Mar 31, 2026: $139.44
Quarter-end price
$380.37
implied by 13F values
Estimated gain or loss
+99.4%
price against the estimated cost
Estimated at a loss
0.000%
of costed 13F value

Estimated cost covers 29.8% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.

Shared Holders

Companies MTSI's active holders also own, quarter ended Jun 30, 2026
# Company Shared holders
1 MKSI Mks Inc 32
2 LSCC Lattice Semiconductor Corp 23
3 COHR Coherent Corp. 40
4 SITM SITIME Corp 20
5 DAVE Dave Inc./DE 13
6 VIAV Viavi Solutions Inc. 16
7 MXL Maxlinear, Inc 13
8 RBC RBC Bearings INC 19
9 DOCN DigitalOcean Holdings, Inc. 16
10 MRCY Mercury Systems Inc 11

Shareholder Targets

13F filers that own its peers but not MTSI, quarter ended Jun 30, 2026

Found through its holder-overlap peers: MKSI, LSCC, COHR, SITM, DAVE, VIAV, MXL, RBC, DOCN, MRCY, BURL, LITE, FROG, ONTO, ALAB, STRL, CIEN, ROAD, MOD, SIMO. 2,232 filers in all.

# Filer In peers
1 Capital International Investors Adviser, Diversified active $4,004,046,003 3 held
2 NVIDIA CORP Unknown, Concentrated $3,072,195,869 1 held
3 D. E. Shaw & Co., Inc. Unknown, Systematic-like $2,884,873,929 19 held
4 FULLER & THALER ASSET MANAGEMENT, INC. Registered adviser, Diversified active $2,282,549,482 10 held
5 Hood River Capital Management LLC Registered adviser, Diversified active $1,639,177,238 7 held
6 RENAISSANCE TECHNOLOGIES LLC Registered adviser, Diversified active $1,337,020,991 12 held
7 VAN ECK ASSOCIATES CORP Registered adviser, Index-like $1,270,673,912 12 held
8 Jericho Capital Asset Management L.P. Registered adviser, Diversified active $1,180,704,999 3 held
9 Atreides Management, LP Registered adviser, Concentrated $1,178,786,762 3 held
10 FRED ALGER MANAGEMENT, LLC Registered adviser, Diversified active $1,141,305,518 12 held

Fund Ownership of MTSI by Fund Type

Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026

Index funds and index ETFs hold 22.19% of shares outstanding.

Fund type Of shares outstanding Shares
Index funds 2.76% 2,105,660
Index ETFs 19.43% 14,842,186
Active ETFs 2.03% 1,552,366
Active funds 30.92% 23,616,613
Unclassified 0.76% 577,084
All registered funds 55.90% 42,693,909
How fund types are measured

Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.

Holder type: Registered adviser 363 Exempt adviser 9 Adviser 16 Bank 32 Insurer 3 Broker-dealer 2 Benefit plan 8 Non-US 11 Holding company 13 Unknown 200
Showing 100 of 681
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
FMR LLC $4,004,209,761 14.19% 10,527,144
BlackRock, Inc. $3,618,421,383 12.83% 9,512,899
VANGUARD PORTFOLIO MANAGEMENT LLC $1,371,357,089 4.86% 3,605,324
VANGUARD CAPITAL MANAGEMENT LLC $1,165,713,472 4.13% 3,064,683
T. Rowe Price Investment Management, Inc. $1,084,124,868 3.84% 2,850,185
STATE STREET CORP $860,488,989 3.05% 2,262,242
Invesco Ltd. $817,636,120 2.90% 2,149,581
JPMORGAN CHASE & CO $808,320,857 2.87% 2,125,091
GEODE CAPITAL MANAGEMENT, LLC $536,223,184 1.90% 1,409,741
WELLINGTON MANAGEMENT GROUP LLP $458,616,290 1.63% 1,205,711
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ $443,603,467 1.57% 1,166,242
Capital Research Global Investors $413,138,495 1.46% 1,086,149
NORGES BANK $379,126,570 1.34% 996,731
Whale Rock Capital Management LLC $376,104,150 1.33% 988,785
PRICE T ROWE ASSOCIATES INC /MD/ $372,813,569 1.32% 980,134
NEUBERGER BERMAN GROUP LLC $314,554,197 1.12% 826,969
GOLDMAN SACHS GROUP INC $309,020,574 1.10% 812,421
FRANKLIN RESOURCES INC $303,874,167 1.08% 798,891
Qube Research & Technologies Ltd $300,750,190 1.07% 790,678
Polar Capital Holdings Plc $285,474,151 1.01% 750,517
Jupiter Topco LLC $256,669,871 0.91% 674,790
CHARLES SCHWAB INVESTMENT MANAGEMENT INC $253,577,083 0.90% 666,659
BANK OF AMERICA CORP /DE/ $247,732,315 0.88% 651,293
GW&K Investment Management, LLC $241,436,813 0.86% 634,742
Rafferty Asset Management, LLC $240,689,007 0.85% 632,776
Artisan Partners Limited Partnership $238,815,304 0.85% 627,850
RAYMOND JAMES FINANCIAL INC $238,797,805 0.85% 627,804
ALLIANCEBERNSTEIN L.P. $216,624,899 0.77% 569,511
NORTHERN TRUST CORP $212,518,801 0.75% 558,716
Bank of New York Mellon Corp $204,593,026 0.73% 537,879
JANE STREET GROUP, LLC $203,332,107 0.72% 534,564
BESSEMER GROUP INC $201,239,307 0.71% 529,062
BARCLAYS PLC $177,763,254 0.63% 467,343
Clearbridge Investments, LLC $167,825,710 0.59% 441,217
MILLENNIUM MANAGEMENT LLC $163,711,248 0.58% 430,400
VANGUARD FIDUCIARY TRUST CO $162,215,252 0.58% 426,467
CITIGROUP INC $156,019,785 0.55% 410,179
Evergreen Quality Fund GP, Ltd. $150,854,742 0.53% 396,600
UBS Group AG $148,324,519 0.53% 389,948
MORGAN STANLEY $144,726,974 0.51% 380,490
DEUTSCHE BANK AG\ $137,970,467 0.49% 362,727
Allspring Global Investments Holdings, LLC $137,717,522 0.49% 362,062
AMERICAN CENTURY COMPANIES INC $127,410,637 0.45% 334,965
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $122,228,856 0.43% 321,342
Stephens Investment Management Group LLC $120,352,110 0.43% 316,408
FIRST TRUST ADVISORS LP $118,439,610 0.42% 311,380
NOMURA ASSET MANAGEMENT INTERNATIONAL INC. $116,859,933 0.41% 307,227
Analog Century Management LP $112,700,968 0.40% 296,293
Amundi $109,776,683 0.39% 288,605
DIMENSIONAL FUND ADVISORS LP $108,961,549 0.39% 286,462
JENNISON ASSOCIATES LLC $102,559,923 0.36% 269,632
TimesSquare Capital Management, LLC $99,499,086 0.35% 261,585
Nuveen, LLC $99,055,194 0.35% 260,418
GENEVA CAPITAL MANAGEMENT LLC $96,127,866 0.34% 252,722
Driehaus Capital Management LLC $95,513,569 0.34% 251,107
FEDERATED HERMES, INC. $94,822,816 0.34% 249,291
AQR CAPITAL MANAGEMENT LLC $89,035,104 0.32% 234,075
JANE STREET GROUP, LLC $82,350,105 0.29% 216,500
SEGALL BRYANT & HAMILL, LLC $82,228,006 0.29% 216,179
SUSQUEHANNA INTERNATIONAL GROUP, LLP $80,752,551 0.29% 212,300
LOOMIS SAYLES & CO L P $78,588,245 0.28% 206,610
LORD, ABBETT & CO. LLC $72,851,124 0.26% 191,527
Assenagon Asset Management S.A. $72,209,844 0.26% 253,528
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $71,884,600 0.25% 188,986
OBERWEIS ASSET MANAGEMENT INC/ $68,221,641 0.24% 179,356
RHUMBLINE ADVISERS $67,500,460 0.24% 177,460
TD Asset Management Inc $67,406,889 0.24% 177,214
WESTFIELD CAPITAL MANAGEMENT CO LP $66,926,862 0.24% 175,952
PRINCIPAL FINANCIAL GROUP INC $65,276,816 0.23% 171,614
CITADEL ADVISORS LLC $64,662,900 0.23% 170,000
SCHRODER INVESTMENT MANAGEMENT GROUP $64,399,302 0.23% 169,307
SEI INVESTMENTS CO $63,040,620 0.22% 165,735
SUSQUEHANNA INTERNATIONAL GROUP, LLP $58,425,211 0.21% 153,601
JANE STREET GROUP, LLC $55,610,094 0.20% 146,200
WELLS FARGO & COMPANY/MN $55,249,500 0.20% 145,252
MANUFACTURERS LIFE INSURANCE COMPANY, THE $54,460,996 0.19% 143,179
Swiss National Bank $52,015,597 0.18% 136,750
Squarepoint Ops LLC $51,949,413 0.18% 136,576
SG Americas Securities, LLC $50,680,879 0.18% 133,241
Fiera Capital Corp $48,884,771 0.17% 128,519
CIBC Bancorp USA Inc. $43,675,224 0.15% 114,823
ENVESTNET ASSET MANAGEMENT INC $42,465,267 0.15% 111,642
California Public Employees Retirement System $42,195,585 0.15% 110,933
NEW YORK STATE COMMON RETIREMENT FUND $41,416,587 0.15% 108,885
Aristotle Capital Boston, LLC $39,113,447 0.14% 102,830
Mirae Asset Global Investments Co., Ltd. $38,674,880 0.14% 101,677
Ranger Investment Management, L.P. $38,221,859 0.14% 100,486
BNP PARIBAS ARBITRAGE, SA $38,203,982 0.14% 100,439
Panview Capital Ltd $37,270,174 0.13% 97,984
NOMURA HOLDINGS INC $37,260,283 0.13% 97,958
Retirement Systems of Alabama $36,995,927 0.13% 97,263
ROYAL BANK OF CANADA $36,357,662 0.13% 95,585
Legal & General Group Plc $36,192,965 0.13% 95,152
Gotham Asset Management, LLC $35,125,648 0.12% 92,346
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO $33,445,553 0.12% 87,929
Silverberg Bernstein Capital Management LLC $33,039,120 0.12% 116,000
VICTORY CAPITAL MANAGEMENT INC $30,750,632 0.11% 80,844
ADAGE CAPITAL PARTNERS GP, L.L.C. $30,451,281 0.11% 80,057
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM $29,824,811 0.11% 78,410
Russell Investments Group, Ltd. $27,394,245 0.10% 72,020

Showing the top 100 of 681 holders. Create a free account to see every holder, past quarters, search, filters and CSV export.

Key facts CIK 1493594 CUSIP 55405Y100 13F (30d) 68 filings 66 filers Visit website Investor relations