MACOM Technology Solutions Holdings, Inc.
MACOM Technology Solutions Holdings, Inc. (MTSI) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · MTSI · as of Sep 30, 2025
Ownership Breakdown
443
Institutional Holders
▲ 10 vs Q2
$8.69B
Total Inst. Value
▼ $799.33M vs Q2
76.30M
Shares Outstanding
freeFloat 90.41%
69.55M
13F Shares Held
▲ 3.35M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
MTSI largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC semiconductors & related devices | 7.07M | 9.50% | 9.50% | $879.87B | Nov 7, 2025 | ▲ 392.4K |
BLACKROCK, INC. semiconductors & related devices | 7.05M | 9.47% | 9.47% | $877.84B | Nov 12, 2025 | ▲ 1.21M |
FMR LLC semiconductors & related devices | 5.53M | 7.42% | 7.42% | $687.89B | Nov 13, 2025 | ▲ 124.4K |
T. ROWE PRICE INVESTMENT MANAGEMENT, INC. semiconductors & related devices | 5.47M | 7.35% | 7.35% | $681.45B | Nov 14, 2025 | ▲ 2.72M |
INVESCO LTD. semiconductors & related devices | 3.47M | 4.66% | 4.66% | $431.72B | Nov 13, 2025 | ▲ 3.0K |
STATE STREET CORP semiconductors & related devices | 2.17M | 2.91% | 2.91% | $269.57B | Nov 14, 2025 | ▲ 83.2K |
ARTISAN PARTNERS LIMITED PARTNERSHIP semiconductors & related devices | 1.99M | 2.68% | 2.68% | $248.10B | Nov 12, 2025 | ▼ 62.4K |
PRICE T ROWE ASSOCIATES INC /MD/ semiconductors & related devices | 1.80M | 2.42% | 2.42% | $223.89B | Nov 14, 2025 | ▼ 463.4K |
CAPITAL RESEARCH GLOBAL INVESTORS semiconductors & related devices | 1.53M | 2.06% | 2.06% | $190.83B | Nov 13, 2025 | ▼ 143.2K |
ALLIANCEBERNSTEIN L.P. semiconductors & related devices | 1.49M | 2.01% | 2.01% | $186.08B | Nov 14, 2025 | ▲ 156.2K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
29
Increased
+7.98M shares1
New Positions
first time holders20
Decreased
−4.34M shares0
Sold Out
fully exitedNet shares change (top 50)
+3.64M
+7.98M / −4.34M
Net new holders
+10
1 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
MTSI insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
3
Buy transactions
39
Sell transactions
0.08
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Daly Stephen G President and CEO | May 29, 2026 | Sale | 1,500 | $358.44 | $537.7K | 52.7K | Form 4 ↗ |
Daly Stephen G President and CEO | May 29, 2026 | Sale | 2,200 | $359.37 | $790.6K | 50.5K | Form 4 ↗ |
Daly Stephen G President and CEO | May 29, 2026 | Sale | 400 | $360.49 | $144.2K | 50.1K | Form 4 ↗ |
Daly Stephen G President and CEO | May 29, 2026 | Sale | 904 | $362.02 | $327.3K | 49.2K | Form 4 ↗ |
Daly Stephen G President and CEO | May 29, 2026 | Sale | 2,429 | $362.94 | $881.6K | 46.8K | Form 4 ↗ |
Daly Stephen G President and CEO | May 29, 2026 | Sale | 2,075 | $363.87 | $755.0K | 44.7K | Form 4 ↗ |
Daly Stephen G President and CEO | May 29, 2026 | Sale | 2,820 | $364.89 | $1.03M | 41.9K | Form 4 ↗ |
Daly Stephen G President and CEO | May 29, 2026 | Sale | 300 | $366.46 | $109.9K | 41.6K | Form 4 ↗ |
Daly Stephen G President and CEO | May 29, 2026 | Sale | 600 | $367.95 | $220.8K | 41.0K | Form 4 ↗ |
Daly Stephen G President and CEO | May 29, 2026 | Sale | 300 | $369.38 | $110.8K | 40.7K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
MACOM Technology Solutions Holdings, Inc. (MTSI) is primarily owned by institutional investors, who hold approximately 91.2% of total shares outstanding. Company insiders own approximately 9.59%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of MACOM Technology Solutions Holdings, Inc. is VANGUARD GROUP INC, holding approximately 7.07 million shares — equal to 9.50% of outstanding shares — as of September 30, 2025.
A total of 443 institutional investors currently hold MTSI stock, with a combined institutional value of approximately $8.69 billion as of the most recent 13F filing period.
Frequently asked questions
MTSI ownershipMACOM Technology Solutions Holdings, Inc. (MTSI) is primarily owned by institutional investors, who hold approximately 91.2% of shares. The largest shareholder is VANGUARD GROUP INC with a 9.50% stake. Company insiders hold 9.59%. Data sourced from SEC Form 13F as of September 30, 2025.