Stock Ownership/MTSI

MACOM TECH SOLUTIONS HLDGS I (MTSI): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in MTSI · Information Technology. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
29
13F filers
Aggregate Value
$1.5B
Across holders
Last Price
$257.43
2026-08-24
Sector
Information Technology
GICS
Quarterly fund activity17 increased11 reduced2 exited
Full exits: Bridgewater Associates, LP, MARINER INVESTMENT GROUP LLC
Institutional Holders of MTSI
↗
29 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
Whale Rock Capital Management LLC
CIK 0001387322
Hedge Fund989K$376.1M25.2%3.0%Reduced$-70.8MQ2 2026
Qube Research & Technologies Ltd
CIK 0001729829
Hedge Fund791K$300.8M20.1%0.3%Added—Q2 2026
Clearbridge Investments, LLC
CIK 0001348883
Hedge Fund441K$167.8M11.2%0.1%Added—Q2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund430K$163.7M11.0%0.1%Added+$36.2MQ2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
Hedge Fund321K$122.2M8.2%0.1%Added+$89.9MQ2 2026
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund234K$88.0M5.9%0.0%Added+$88.0MQ2 2026
Squarepoint Ops LLC
CIK 0001642575
Hedge Fund137K$51.9M3.5%0.1%Reduced+$51.3MQ2 2026
Gotham Asset Management, LLC
CIK 0001510387
Hedge Fund92K$35.1M2.4%0.1%Added+$7.9MQ2 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.
CIK 0001165408
Hedge Fund80K$30.5M2.0%0.0%Added+$3.8MQ2 2026
Point72 Asset Management, L.P.
CIK 0001603466
Hedge Fund67K$25.7M1.7%0.0%Reduced+$23.4MQ2 2026
Whale Rock Capital Management LLCReduced
Hedge Fund
$376.1M· 25.2% of total· 3.0% port· 989K sh· $-70.8M QoQ· Q2 2026
Qube Research & Technologies LtdAdded
Hedge Fund
$300.8M· 20.1% of total· 0.3% port· 791K sh· — QoQ· Q2 2026
Clearbridge Investments, LLCAdded
Hedge Fund
$167.8M· 11.2% of total· 0.1% port· 441K sh· — QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCAdded
Hedge Fund
$163.7M· 11.0% of total· 0.1% port· 430K sh· +$36.2M QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPAdded
Hedge Fund
$122.2M· 8.2% of total· 0.1% port· 321K sh· +$89.9M QoQ· Q2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$88.0M· 5.9% of total· 0.0% port· 234K sh· +$88.0M QoQ· Q2 2026
Squarepoint Ops LLCReduced
Hedge Fund
$51.9M· 3.5% of total· 0.1% port· 137K sh· +$51.3M QoQ· Q2 2026
Gotham Asset Management, LLCAdded
Hedge Fund
$35.1M· 2.4% of total· 0.1% port· 92K sh· +$7.9M QoQ· Q2 2026
ADAGE CAPITAL PARTNERS GP, L.L.C.Added
Hedge Fund
$30.5M· 2.0% of total· 0.0% port· 80K sh· +$3.8M QoQ· Q2 2026
Point72 Asset Management, L.P.Reduced
Hedge Fund
$25.7M· 1.7% of total· 0.0% port· 67K sh· +$23.4M QoQ· Q2 2026
Brevan Howard Capital Management LPAdded
Hedge Fund
$23.6M· 1.6% of total· 0.2% port· 62K sh· — QoQ· Q2 2026
TUDOR INVESTMENT CORP ET ALAdded
Hedge Fund
$23.2M· 1.6% of total· 0.0% port· 61K sh· — QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$20.1M· 1.3% of total· 0.0% port· 53K sh· +$5.2M QoQ· Q2 2026
Walleye Capital LLCReduced
Hedge Fund
$18.5M· 1.2% of total· 0.1% port· 49K sh· +$16.0M QoQ· Q2 2026
CITADEL ADVISORS LLCReduced
Hedge Fund
$16.6M· 1.1% of total· 0.0% port· 44K sh· $-1.4M QoQ· Q2 2026
BALYASNY ASSET MANAGEMENT LLCReduced
Hedge Fund
$8.7M· 0.6% of total· 0.0% port· 23K sh· $-63.8M QoQ· Q2 2026
ExodusPoint Capital Management, LPAdded
Hedge Fund
$6.1M· 0.4% of total· 0.0% port· 16K sh· — QoQ· Q2 2026
Schonfeld Strategic Advisors LLCReduced
Hedge Fund
$3.7M· 0.2% of total· 0.0% port· 10K sh· $-11.7M QoQ· Q2 2026
CAXTON ASSOCIATES LLPReduced
Hedge Fund
$2.7M· 0.2% of total· 0.1% port· 7K sh· $-3.2M QoQ· Q2 2026
Man Group plcReduced
Hedge Fund
$2.2M· 0.1% of total· 0.0% port· 6K sh· $-2.2M QoQ· Q2 2026
Rockefeller Capital Management L.P.Reduced
Hedge Fund
$1.2M· 0.1% of total· 0.0% port· 3K sh· $-4.7M QoQ· Q2 2026
Fulcrum Asset Management LLPAdded
Hedge Fund
$1.2M· 0.1% of total· 0.1% port· 3K sh· — QoQ· Q2 2026
Hudson Bay Capital Management LPAdded
Hedge Fund
$1.1M· 0.1% of total· 0.0% port· 3K sh· — QoQ· Q2 2026
CAPSTONE INVESTMENT ADVISORS, LLCAdded
Hedge Fund
$683K· 0.0% of total· 0.0% port· 2K sh· — QoQ· Q2 2026
MAVERICK CAPITAL LTDAdded
Hedge Fund
$682K· 0.0% of total· 0.0% port· 2K sh· — QoQ· Q2 2026
Holocene Advisors, LPAdded
Hedge Fund
$563K· 0.0% of total· 0.0% port· 1K sh· — QoQ· Q2 2026
TCW GROUP INCAdded
Hedge Fund
$443K· 0.0% of total· 0.0% port· 1K sh· — QoQ· Q2 2026
MARSHALL WACE, LLPReduced
Hedge Fund
$418K· 0.0% of total· 0.0% port· 1K sh· $-9.1M QoQ· Q2 2026
Pinpoint Asset Management LtdUnchanged
Hedge Fund
$100· 0.0% of total· 0.0% port· 1 sh· +$0 QoQ· Q1 2025
1–10 of 29
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