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MTSI in the 13F filings

M/a-com Technology Solutions Holdings In · CUSIP 55405Y100

Sector · SemiconductorsTheme · AI infrastructure and semiconductors· L3VLUP-definedTheme · Semiconductors
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
31 Dec 2025
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 22 Jan 2026
Managers listing it
30
at least, of 95 tracked, among listed positions
Comparable managers
92
filed both Q3 2025 and Q4 2025; 12 listed it in both
Shares listed
21,432,899
combined, among listed positions
Reported value
$3.7bn
combined, at the quarter end

Among the 92 comparable managers: 15 buyers (opened or added shares) and 15 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +216,304.

Managers listing MTSI in Q4 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q3 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

30 of 30 holders

ActionFiling
Fidelity (FMR LLC)6,480,651$1.1bn0.06%Added+954,96317 Feb 2026 (the filing on sec.gov)
Invesco Ltd3,424,570$587m0.06%Trimmed-43,32419 Feb 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc1,934,684$331munder 0.1%Added+136,26217 Feb 2026 (the filing on sec.gov)
Capital Research Global Investors1,336,714$229munder 0.1%Trimmed-196,14611 Feb 2026 (the filing on sec.gov)
Artisan Partners LP1,246,723$214m0.32%Trimmed-746,23517 Feb 2026 (the filing on sec.gov)
AllianceBernstein LP1,063,370$182m0.06%Trimmed-431,36617 Feb 2026 (the filing on sec.gov)
Wellington Management Group LLP1,015,569$174munder 0.1%Added+29,13117 Feb 2026 (the filing on sec.gov)
Whale Rock Capital Management LLC783,305$134m1.72%Newnew17 Feb 2026 (the filing on sec.gov)
Janus Henderson Group Ltd679,086$116m0.05%Added+224,30617 Feb 2026 (the filing on sec.gov)
Neuberger Berman Group LLC665,423$114m0.08%Trimmed-253,42127 Oct 2026 (the filing on sec.gov)
Millennium Management LLC602,940$103munder 0.1%Added+293,28917 Feb 2026 (the filing on sec.gov)
Point72 Asset Management LP551,641$94m0.11%Trimmed-23,77117 Feb 2026 (the filing on sec.gov)
MFS Investment Management467,797$80munder 0.1%Added+77,34722 Jan 2026 (the filing on sec.gov)
AQR Capital Management LLC313,350$54munder 0.1%Added+9,66517 Feb 2026 (the filing on sec.gov)
Squarepoint Ops LLC153,017$26munder 0.1%Trimmed-44,67013 Feb 2026 (the filing on sec.gov)
Citadel Advisors LLC133,123$23munder 0.1%Trimmed-261,51217 Feb 2026 (the filing on sec.gov)
Balyasny Asset Management LLC131,741$23munder 0.1%Trimmed-59,89817 Feb 2026 (the filing on sec.gov)
D. E. Shaw & Co.93,298$16munder 0.1%Trimmed-241,86517 Feb 2026 (the filing on sec.gov)
Arrowstreet Capital LP70,469$12munder 0.1%Newnew13 Feb 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC58,309$10.0munder 0.1%Trimmed-39,17817 Feb 2026 (the filing on sec.gov)
Walleye Capital LLC56,248$9.6munder 0.1%Added+24,96313 Feb 2026 (the filing on sec.gov)
Tudor Investment Corp55,000$9.4munder 0.1%Newnew17 Feb 2026 (the filing on sec.gov)
Jane Street Group LLC35,781$6.1munder 0.1%Added+33,31512 Feb 2026 (the filing on sec.gov)
Susquehanna International Group LLP22,312$3.8munder 0.1%Added+4,06017 Feb 2026 (the filing on sec.gov)
Bridgewater Associates LP17,122$2.9munder 0.1%Trimmed-10,07013 Feb 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q3 2025 to Q4 2025, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (4)

Exited (1)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
12 in Q3 2024 to 23 in Q2 2026

Tracked managers listing it, at least.

01020302014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
MTSI by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20131$14mn.a.n.a.
Q3 20131$16mn.a.n.a.
Q4 20131$16mn.a.n.a.
Q1 20141$23mn.a.n.a.
Q2 20142$28mn.a.n.a.
Q3 20142$33mn.a.n.a.
Q4 20141$13mn.a.n.a.
Q1 20153$41mn.a.n.a.
Q2 20152$15mn.a.n.a.
Q3 20152$18mn.a.n.a.
Q4 20152$16mn.a.n.a.
Q1 20164$192mn.a.n.a.
Q2 20163$51mn.a.n.a.
Q3 20163$158mn.a.n.a.
Q4 20163$212mn.a.n.a.
Q1 20172$268mn.a.n.a.
Q2 20176$411mn.a.n.a.
Q3 20173$327mn.a.n.a.
Q4 20174$168mn.a.n.a.
Q1 20182$98mn.a.n.a.
Q2 20182$153mn.a.n.a.
Q3 20182$92mn.a.n.a.
Q4 20182$63mn.a.n.a.
Q1 20193$51mn.a.n.a.
Q2 20195$87mn.a.n.a.
Q3 20194$174mn.a.n.a.
Q4 20194$226mn.a.n.a.
Q1 20204$148mn.a.n.a.
Q2 20206$269mn.a.n.a.
Q3 20206$285mn.a.n.a.
Q4 20207$447mn.a.n.a.
Q1 20215$401mn.a.n.a.
Q2 20217$509mn.a.n.a.
Q3 20218$558mn.a.n.a.
Q4 20218$647mn.a.n.a.
Q1 20229$495mn.a.n.a.
Q2 202210$397mn.a.n.a.
Q3 20227$460mn.a.n.a.
Q4 20226$642mn.a.n.a.
Q1 20238$742mn.a.n.a.
Q2 20235$444mn.a.n.a.
Q3 20236$1.0bnn.a.n.a.
Q4 20238$1.4bn25
Q1 202410$1.7bn72
Q2 202410$2.3bn46
Q3 202412$2.4bn74
Q4 202413$2.9bn67
Q1 202512$2.1bn85
Q2 202515$3.1bn95
Q3 202512$2.3bn67
Q4 202516$3.5bn1515
Q1 202618$5.2bn1914
Q2 202623$8.2bn1820

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

MTSI and NVDA →MTSI and AVGO →MTSI and MU →Choose a stock to compare with MTSI →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own MTSI, latest filings →Back to the 13F Explorer →