FRONTIER CAPITAL MANAGEMENT CO LLC
Position in MTSI — MACOM Technology Solutions Holdings, Inc.
CIK 351173
Boston, MA
Position in MTSI
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$15,617,738
+$1,776,944 QoQ
Shares Held
70,328
-13.0% QoQ
Ownership
0.092%
of shares outstanding
% of Portfolio
0.16%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 76.2470139915823.ToString("F0")%
Shared 0.ToString("F0")%
None 23.7529860084177.ToString("F0")%
Common Shares in MTSI Over Time
Shares Held
Position Value (USD)
Position in Semiconductors
Technology · as of Mar 31, 2026FRONTIER CAPITAL MANAGEMENT CO LLC holds $500,506,781 across 15 Semiconductors names. MTSI ranks #9 (3.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | MPWR |
Monolithic Power Systems Inc
|
79,699 | $87,138,901 | |
| 2 | ALAB |
Astera Labs, Inc.
|
688,213 | $75,428,144 | |
| 3 | INDI |
indie Semiconductor, Inc.
|
19,246,088 | $61,972,403 | |
| 4 | LSCC |
Lattice Semiconductor Corp
|
605,318 | $56,149,297 | |
| 5 | MRVL |
Marvell Technology, Inc.
|
540,979 | $53,583,969 | |
| 6 | DIOD |
Diodes Inc /Del/
|
592,499 | $40,443,981 | |
| 7 | SIMO |
Silicon Motion Technology CORP
|
272,356 | $30,582,855 | |
| 8 | NXPI |
NXP Semiconductors N.V.
|
91,989 | $18,108,954 |
All Filings in MTSI
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $15,617,738 | 70,328 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $13,840,794 | 80,808 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $12,007,807 | 96,456 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $14,246,321 | 99,423 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $10,009,391 | 99,715 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $13,353,448 | 102,790 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $11,459,780 | 103,000 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $27,327,873 | 245,159 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $28,458,447 | 297,558 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $30,069,046 | 323,497 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $34,270,942 | 420,090 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $27,550,515 | 420,426 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $37,662,794 | 531,660 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $41,725,698 | 662,523 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $39,009,263 | 753,220 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $46,294,127 | 1,004,211 | Shares | Sole | 2022-07-20 | |
| 2022-03-31 | $67,420,744 | 1,126,119 | Shares | Sole | 2022-04-14 | |
| 2021-12-31 | $128,861,128 | 1,645,736 | Shares | Sole | 2022-01-19 | |
| 2021-09-30 | $103,611,401 | 1,597,216 | Shares | Sole | 2021-10-19 | |
| 2021-06-30 | $89,812,733 | 1,401,572 | Shares | Sole | 2021-08-09 | |
| 2021-03-31 | $84,183,886 | 1,450,946 | Shares | Sole | 2021-05-13 | |
| 2020-12-31 | $117,643,266 | 2,137,414 | Shares | Sole | 2021-01-19 | |
| 2020-09-30 | $63,231,255 | 1,859,196 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $52,462,480 | 1,527,292 | Shares | Sole | 2020-07-17 | |
| 2020-03-31 | $32,663,090 | 1,725,467 | Shares | Sole | 2020-04-16 | |
| No filing history on record for this holder in this stock. | ||||||