Trade Filings
Managers Stocks Filings Superinvestors
Signals Institutional Buying Institutional Selling Insider Activity 13D & 13G Watch Sector Rotation
Tools Stock Screener Manager Screener Compare Managers Consensus Baskets All Research Tools Data API
Learn & AI Learn Ask the Data AI Agents
News ★ Saved
About About us Methodology Contact Disclaimer
Reader
DATA PLANS

Historical data downloads — coming with accounts.

API GATEWAY

Free read-only JSON access to the site's cached data.

Dark mode

🧭 Guided View
New to markets — prices, yields, YTD, market cap? We explain every term as you browse, in plain English. Same data, with the help built in.

⚡ Expert View
You already know the market. Just the data — clean, fast and compact, with no extra explanations. This is the default view.

Interface language
Security record · archived quarter

MTSI

MACOM Technology Solutions Holdings, Inc. · Technology · Semiconductors

266.27 +3.4% mkt cap $20.32B quote delayed (FMP) · as of Aug 25 22:08 UTC — separate from filing data below

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024
15Tracked holders
0Δ holders
28.73MShares held
$4.12BReported value
+1New positions
−1Exits
Stable Conviction score 57/100 4 quarters of rising tracked shares ●●●●○○ How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth 0.0% · share flow -4.8% · net new positions 0.0%formula

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
Q2 2026 146 +14 56.07M $20.98B +18 −3
Q1 2026 134 +2 57.04M $11.94B +10 −9
Q4 2025 132 +1 54.33M $9.31B +3 −1
Q3 2025 19 +2 31.80M $3.96B +2 −1
Q2 2025 15 0 28.73M $4.12B +1 −1
Q1 2025 12 -1 12.26M $1.23B +1 −2
Q4 2024 13 +4 11.70M $1.52B +4
Q3 2024 8 -1 8.78M $977.09M −1
Q2 2024 9 7.14M $796.33M
Holder count
Who holds it · Q2 2025
#ManagerSharesΔ sharesValueTheir weightHeld
1 The Vanguard Group (passive) 6.68M $956.52M 0.0% n/c 1 SEC ↗
2 The Vanguard Group (passive) 6.68M $956.52M 0.0% n/c 1 SEC ↗
3 The Vanguard Group (passive) 6.68M $956.52M 0.0% n/c 1 SEC ↗
4 The Vanguard Group (passive) 6.68M $956.52M 0.0% n/c 1 SEC ↗
5 The Vanguard Group (passive) 6.68M $956.52M 0.0% n/c 1 SEC ↗
6 BlackRock (passive) 5.84M $836.52M 0.0% n/c 1 SEC ↗
7 BlackRock (passive) 5.84M $836.52M 0.0% n/c 1 SEC ↗
8 BlackRock (passive) 5.84M $836.52M 0.0% n/c 1 SEC ↗
9 BlackRock (passive) 5.84M $836.52M 0.0% n/c 1 SEC ↗
10 BlackRock (passive) 5.84M $836.52M 0.0% n/c 1 SEC ↗
11 BlackRock (passive) 5.84M $836.52M 0.0% n/c 1 SEC ↗
12 BlackRock (passive) 5.84M $836.52M 0.0% n/c 1 SEC ↗
13 BlackRock (passive) 5.84M $836.52M 0.0% n/c 1 SEC ↗
14 BlackRock (passive) 5.84M $836.52M 0.0% n/c 1 SEC ↗
15 BlackRock (passive) 5.84M $836.52M 0.0% n/c 1 SEC ↗
16 BlackRock (passive) 5.84M $836.52M 0.0% n/c 1 SEC ↗
17 BlackRock (passive) 5.84M $836.52M 0.0% n/c 1 SEC ↗
18 BlackRock (passive) 5.84M $836.52M 0.0% n/c 1 SEC ↗
19 BlackRock (passive) 5.84M $836.52M 0.0% n/c 1 SEC ↗
20 BlackRock (passive) 5.84M $836.52M 0.0% n/c 1 SEC ↗
21 BlackRock (passive) 5.84M $836.52M 0.0% n/c 1 SEC ↗
22 BlackRock (passive) 5.84M $836.52M 0.0% n/c 1 SEC ↗
23 BlackRock (passive) 5.84M $836.52M 0.0% n/c 1 SEC ↗
24 Fidelity (FMR) 5.40M $773.95M 0.0% n/c 1 SEC ↗
25 Fidelity (FMR) 5.40M $773.95M 0.0% n/c 1 SEC ↗
26 Fidelity (FMR) 5.40M $773.95M 0.0% n/c 1 SEC ↗
27 Fidelity (FMR) 5.40M $773.95M 0.0% n/c 1 SEC ↗
28 Fidelity (FMR) 5.40M $773.95M 0.0% n/c 1 SEC ↗
29 Fidelity (FMR) 5.40M $773.95M 0.0% n/c 1 SEC ↗
30 Fidelity (FMR) 5.40M $773.95M 0.0% n/c 1 SEC ↗
31 T. Rowe Price 2.26M -29.0% $324.09M 0.0% ▼ Trim 5 SEC ↗
32 T. Rowe Price 2.26M -29.0% $324.09M 0.0% ▼ Trim 5 SEC ↗
33 State Street Global Advisors (passive) 2.08M 0.0% $298.36M 0.0% ▲ Add 3 SEC ↗
34 Citadel Advisors 1.39M +33.2% $198.89M 0.2% ▲ Add 5 SEC ↗
35 Geode Capital Management (passive) 1.15M +2.5% $165.18M 0.0% ▲ Add 5 SEC ↗
36 Geode Capital Management (passive) 1.15M +2.5% $165.18M 0.0% ▲ Add 5 SEC ↗
37 Millennium Management 1.12M +64.4% $160.49M 0.1% ▲ Add 5 SEC ↗
38 Point72 Asset Management 1.03M -62.9% $147.40M 0.4% ▼ Trim 5 SEC ↗
39 Norges Bank (passive) 795.15K +3.2% $113.94M 0.0% ▲ Add 5 SEC ↗
40 Wellington Management 351.54K +301.6% $50.37M 0.0% ▲ Add 3 SEC ↗
41 Wellington Management 351.54K +301.6% $50.37M 0.0% ▲ Add 3 SEC ↗
42 Wellington Management 351.54K +301.6% $50.37M 0.0% ▲ Add 3 SEC ↗
43 D. E. Shaw & Co. 317.98K +27.1% $45.56M 0.0% ▲ Add 5 SEC ↗
44 AQR Capital Management 308.51K +24.7% $44.08M 0.0% ▲ Add 5 SEC ↗
45 AQR Capital Management 308.51K +24.7% $44.08M 0.0% ▲ Add 5 SEC ↗
46 AQR Capital Management 308.51K +24.7% $44.08M 0.0% ▲ Add 5 SEC ↗
47 AQR Capital Management 308.51K +24.7% $44.08M 0.0% ▲ Add 5 SEC ↗
48 AQR Capital Management 308.51K +24.7% $44.08M 0.0% ▲ Add 5 SEC ↗
49 Gotham Asset Management 8.20K +88.0% $1.17M 0.0% ▲ Add 2 SEC ↗
50 Marshall Wace 3.79K New $543,642 0.0% New 1 SEC ↗

“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.

New buyers

Marshall Wace $543,642 0.0%

Exited

Two Sigma Investments $749,337 was 0.0%

Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 510 holders, 72.04M shares, $14.26B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.

Frequently co-owned

What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.

Insider transactions

Open-market purchases (P)

No open-market insider purchases in our coverage window.

Open-market sales (S)

Aug 17 Kober John

Officer · 1.59K sh · $509,706

Aug 17 Kober John

Officer · 400 sh · $129,588

Aug 17 Kober John

Officer · 900 sh · $292,734

Aug 17 Kober John

Officer · 500 sh · $163,255

Aug 17 Kober John

Officer · 1.70K sh · $556,898

Aug 17 Kober John

Officer · 1.60K sh · $526,048

Aug 17 Kober John

Officer · 300 sh · $98,925

Aug 17 Kober John

Officer · 400 sh · $132,268

Awards, exercises and tax withholding are never counted as buys or sales here. Methodology

Beneficial ownership
Aug 14 SC 13G/A — T. Rowe Price Investment Management…

View original SEC filing ↗

Aug 12 SC 13G/A — OCAMPO SUSAN

View original SEC filing ↗

Jul 08 SC 13G/A — BlackRock, Inc.

View original SEC filing ↗

Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR. Reporting period: Q2 2025 · Methodology · Get this via the API