MACOM Technology Solutions (MTSI)
Builds RF-to-lightwave semiconductors for industrial, defense, data center, and telecommunications systems.
$274.65
vs last close−5.04 (−1.80%)
Something off on this page? Send us feedback.
13F · 13D/G · Form 4
| Institutions | ≈ 94.99% | 72.54M shares | |
|---|---|---|---|
| 684 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail | |||
| Insiders | 9.18% | 7.01M shares | |
| 14 holders · as of Sep 1, 2026 | |||
| Adds to | 104.17% | ||
76.37M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
These groups come from separate filings that can overlap, so they add to 104.17%; nothing is left for Other.
13F, as of Jun 30, 2026
684 holders · 72.54M shares · 190 new positions · 400 increased · 192 reduced · 45 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| FMR LLC | 10.53M | 13.78% | −83.3K | Aug 13, 2026 |
| BlackRock, Inc. | 9.51M | 12.46% | +946.6K | Aug 7, 2026 |
| Vanguard Portfolio Management LLC | 3.61M | 4.72% | +18.2K | Aug 13, 2026 |
| Vanguard Capital Management LLC | 3.06M | 4.01% | +71.8K | Aug 13, 2026 |
| T. Rowe Price Investment Management, Inc. | 2.85M | 3.73% | −1.64M | Aug 14, 2026 |
| State Street Corp | 2.26M | 2.96% | +109.5K | Aug 7, 2026 |
| Invesco Ltd. | 2.15M | 2.81% | −1.52M | Aug 14, 2026 |
| JPMorgan Chase & Co | 2.13M | 2.78% | +109.5K | Aug 12, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| FMR LLC | 14.10% | 10.62M | 13G | May 6, 2026 |
| Susan M. Ocampo | 9.10% | 6.80M | 13G | May 5, 2026 |
| BlackRock, Inc. | 9.10% | 6.74M | 13G | Oct 17, 2025 |
| T. Rowe Price Investment Management, Inc. | 6.00% | 4.49M | 13G | May 15, 2026 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 28, 2026 | Robert Dennehyofficer: Senior VP and COO | Sale | 252 | $275.20 | 12,758 |
| Aug 17, 2026 | John Koberofficer: Senior VP and CFO | Sale · 8 lots | 7,389 | $326.08 | 33,583 |
| Jun 25, 2026 | Donghyun Thomas Hwangofficer: SVP, Global Sales | Sale · 12 lots | 2,620 | $383.87 | 29,756 |
| May 29, 2026 | Stephen G. Dalydirector, officer: President and CEO | Sale · 19 lots | 15,828 | $365.75 | 38,389 |
| May 18, 2026 | Donghyun Thomas Hwangofficer: SVP, Global Sales | Sale · 11 lots | 2,595 | $360.64 | 32,376 |
| May 18, 2026 | John Koberofficer: Senior VP and CFO | Sale · 13 lots | 7,644 | $359.25 | 40,972 |
| May 14, 2026 | Peter Y. Chungdirector | Sale | 43,268 | $378.20 | 6,781 |
| May 13, 2026 | Charles R. Blanddirector | Sale | 800 | $380.00 | 14,338 |
| May 11, 2026 | Geoffrey G. Ribardirector | Sale | 1,623 | $361.84 | 12,563 |
| Apr 30, 2026 | Donghyun Thomas Hwangofficer: SVP, Global Sales | Sale · 9 lots | 3,718 | $276.74 | 34,886 |
House and Senate disclosures
| Member | Type | Amount | Owner | Traded | Disclosed |
|---|---|---|---|---|---|
| Rep. Gilbert Cisneros · CA31 | Sale | $1,001 – $15,000 | Jul 16, 2026 | Sep 7, 2026 | |
| Rep. Gilbert Ray Cisneros · CA31 | Sale (Partial) | $1,001 – $15,000 | Jul 16, 2026 | Sep 7, 2026 | |
| Rep. Gilbert Ray Cisneros · CA31 | Sale (Partial) | $1,001 – $15,000 | Jul 15, 2026 | Sep 7, 2026 | |
| Rep. Gilbert Cisneros · CA31 | Sale | $1,001 – $15,000 | May 22, 2026 | Jun 9, 2026 |