MACOM Technology Solutions Holdings, Inc.
MTSI- Exchange
- Nasdaq
- Industry
- Semiconductors & Related Devices
- SEC CIK
- 0001493594
In the last 90 days, MACOM Technology Solutions Holdings, Inc. insiders filed 0 open-market purchases and 6 sales; 662 institutions reported holding it in 13F filings for Q2 2026, worth $27.7B in total; Maverick Capital is the only superinvestor holding it.
Holders of 5% or more of MTSI
Holders whose latest Schedule 13D or 13G filing reports 5% or more of MACOM Technology Solutions Holdings, Inc., largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| FMR LLC | 13G/A | 11.80%8.99M shares | −2.30 ppfrom 14.10% | Feb 9, 20237 filings | Nov 5, 2026 | SEC |
| BlackRock, Inc. | 13G/A | 10.40%7.96M shares | +1.30 ppfrom 9.10% | Oct 22, 20244 filings | Jul 8, 2026 | SEC |
| Ocampo Susan | 13G/A | 6.40%4.88M shares | 0.00 ppfrom 6.40% | Jan 23, 202410 filings | Oct 30, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
47 Schedule 13D and 13G filings on MACOM Technology Solutions Holdings, Inc., newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Nov 5, 20261:19 PM ET | FMR LLCand 1 other | 13G/A | 11.80%8.99M shares | −2.30 ppfrom 14.10% | Sep 30, 2026 | SEC |
| Oct 30, 20263:20 PM ET | Ocampo Susan | 13G/A | 6.40%4.88M shares | 0.00 ppfrom 6.40% | Sep 30, 2026 | SEC |
| Aug 14, 202610:39 AM ET | T. Rowe Price Investment Management, Inc. | 13G/A | 3.70%2.85M shares | −2.30 ppfrom 6.00%Below 5% | Jun 30, 2026 | SEC |
| Aug 12, 20263:02 PM ET | Ocampo Susan | 13G/A | 6.40%4.88M shares | −2.70 ppfrom 9.10% | Jun 30, 2026 | SEC |
| Jul 8, 202611:12 AM ET | BlackRock, Inc. | 13G/A | 10.40%7.96M shares | +1.30 ppfrom 9.10% | Jun 30, 2026 | SEC |
| May 15, 202610:06 AM ET | T. Rowe Price Investment Management, Inc. | 13G/A | 6.00%4.49M shares | −1.40 ppfrom 7.40% | Mar 31, 2026 | SEC |
| May 6, 202611:30 AM ET | FMR LLCand 1 other | 13G/A | 14.10%10.6M shares | +3.40 ppfrom 10.70% | Mar 31, 2026 | SEC |
| May 5, 20269:31 PM ET | Ocampo Susan | 13G/A | 9.10%6.80M shares | −1.60 ppfrom 10.70% | Mar 31, 2026 | SEC |
| Mar 27, 202610:31 AM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | −9.00 ppfrom 9.00%Below 5% | Mar 13, 2026 | SEC |
| Feb 6, 20261:11 PM ET | FMR LLCand 1 other | 13G/A | 10.70%8.03M shares | +1.80 ppfrom 8.90% | Jan 30, 2026 | SEC |
| Feb 5, 20261:31 PM ET | FMR LLCand 1 other | 13G/A | 8.90%6.70M shares | +1.40 ppfrom 7.50% | Dec 31, 2025 | SEC |
| Feb 2, 20261:09 PM ET | Ocampo Susan | 13G/A | 10.70%7.99M shares | −1.80 ppfrom 12.50% | Dec 31, 2025 | SEC |
| Nov 14, 202512:18 PM ET | T. Rowe Price Investment Management, Inc. | 13G | 7.40%5.48M shares | New | Sep 30, 2025 | SEC |
| Oct 20, 20254:22 PM ET | Ocampo Susan | 13G/A | 12.50%9.29M shares | −1.00 ppfrom 13.50% | Sep 30, 2025 | SEC |
| Oct 17, 20256:13 PM ET | BlackRock, Inc. | 13G/A | 9.10%6.74M shares | – | Sep 30, 2025 | SEC |
| Aug 6, 202512:06 PM ET | FMR LLCand 1 other | 13G/A | 7.50%5.60M shares | – | Jun 30, 2025 | SEC |
| Jul 24, 20255:03 PM ET | Ocampo Susan | 13G/A | 13.50%10.0M shares | −1.30 ppfrom 14.80% | Jun 30, 2025 | SEC |
| May 14, 202510:45 AM ET | Price T Rowe Associates Inc | 13G/A | 4.30%3.19M shares | −1.20 ppfrom 5.50%Below 5% | Mar 31, 2025 | SEC |
| Apr 21, 20254:47 PM ET | Ocampo Susan | 13G/A | 14.80%11.0M shares | −1.20 ppfrom 16.00% | Mar 31, 2025 | SEC |
| Feb 14, 20259:44 AM ET | Price T Rowe Associates Inc | 13G | 5.50%4.00M shares | – | Dec 31, 2024 | SEC |
| Feb 10, 20255:37 PM ET | Ocampo Susan | 13G/A | 16.00%11.9M shares | – | Dec 31, 2024 | SEC |
| Feb 7, 20251:58 PM ET | Invesco Ltd. | 13G/A | 4.90%3.55M shares | –Below 5% | Dec 31, 2024 | SEC |
| Jan 30, 20259:58 PM ET | Vanguard Group Inc | 13G/A | 9.00%6.52M shares | – | Dec 31, 2024 | SEC |
| Nov 12, 2024 | BlackRock, Inc. | 13G/AOld format | – | – | – | SEC |
| Nov 7, 2024 | Invesco Ltd. | 13GOld format | – | New | – | SEC |
| Oct 28, 2024 | Ocampo Susan | 13G/AOld format | – | – | – | SEC |
| Oct 22, 2024 | BlackRock, Inc. | 13G/AOld format | – | – | – | SEC |
| Feb 16, 2024 | Price T Rowe Associates Inc | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2024 | Price T Rowe Associates Inc | 13GOld format | – | – | – | SEC |
| Feb 13, 2024 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Feb 9, 2024 | FMR LLC | 13G/AOld format | – | – | – | SEC |
| Jan 25, 20241:48 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Jan 23, 2024 | Ocampo Susan | 13G/AOld format | – | – | – | SEC |
| Feb 14, 2023 | Price T Rowe Associates Inc | 13GOld format | – | New | – | SEC |
| Feb 13, 20237:31 PM ET | Alliancebernstein L.P. | 13G/AOld format | – | – | – | SEC |
| Feb 9, 2023 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Feb 9, 2023 | FMR LLC | 13GOld format | – | New | – | SEC |
| Feb 7, 20232:10 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Jan 12, 2023 | Ocampo John L | 13G/AOld format | – | – | – | SEC |
| Feb 14, 20224:42 PM ET | Alliancebernstein L.P. | 13GOld format | – | New | – | SEC |
| Feb 10, 2022 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Feb 3, 20224:41 PM ET | BlackRock Inc. | 13G/AOld format | – | – | – | SEC |
| Jan 18, 2022 | Ocampo John L | 13G/AOld format | – | – | – | SEC |
| Feb 16, 2021 | Capital Research Global Investors | 13G/AOld format | – | – | – | SEC |
| Feb 10, 2021 | Vanguard Group Inc | 13G/AOld format | – | – | – | SEC |
| Feb 2, 20213:13 PM ET | BlackRock Inc. | 13GOld format | – | New | – | SEC |
| Jan 6, 2021 | Ocampo John L | 13G/AOld format | – | – | – | SEC |
Form 144: proposed insider sales
145 notices from officers, directors and other affiliates planning to sell MACOM Technology Solutions Holdings, Inc. shares, newest first.
| Filed (ET) | Seller | Shares to sell | Market value | Planned sale | Broker | Filing |
|---|---|---|---|---|---|---|
| Nov 9, 20264:34 PM ET | Ambra RothOfficer | 9.50K | $2.00M | Nov 9, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Nov 9, 20264:30 PM ET | John F. Kober IllOfficer | 973 | $205.3K | Nov 9, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Nov 6, 20264:26 PM ET | John F. Kober IllOfficer | 21.0K | $4.00M | Nov 6, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Oct 26, 20264:28 PM ET | John F. Kober IllOfficer | 1.03K | $242.6K | Oct 26, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Oct 1, 20264:27 PM ET | Ambra RothOfficer | 653 | $186.0K | Oct 1, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Aug 28, 20264:23 PM ET | Robert DennehyOfficer | 252 | $69.8K | Aug 28, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| May 29, 20264:21 PM ET | Stephen DalyDirector · Officer | 15.8K | $6.19M | May 29, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| May 26, 20269:43 PM ET | Ocampo SusanOwner | 190.8K | $78.3M | May 26, 2026 | The Charles Schwab Corporation | SEC |
| May 18, 20264:33 PM ET | John F. Kober IllOfficer | 15.0K | $5.65M | May 18, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| May 14, 20266:36 PM ET | Peter ChungDirector | 43.3K | $16.4M | May 14, 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| May 13, 20268:19 PM ET | Ocampo SusanOwner | 100.0K | $38.0M | May 13, 2026 | The Charles Schwab Corporation | SEC |
| May 12, 20265:02 PM ET | Charles BlandDirector | 800 | $286.8K | May 12, 2026 | J.P. Morgan Securities LLC | SEC |
| May 11, 20266:09 PM ET | Ocampo SusanOwner | 200.0K | $72.2M | May 11, 2026 | The Charles Schwab Corporation | SEC |
| May 11, 20264:41 PM ET | Geoffrey RibarDirector | 1.62K | $587.3K | May 11, 2026 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| May 8, 20265:33 PM ET | Ocampo SusanOwner | 24.5K | $8.83M | May 8, 2026 | The Charles Schwab Corporation | SEC |
| May 7, 20268:24 PM ET | Ocampo SusanOwner | 400.0K | $132.7M | May 7, 2026 | The Charles Schwab Corporation | SEC |
| May 6, 20265:51 PM ET | Ocampo SusanOwner | 176.7K | $54.5M | May 6, 2026 | The Charles Schwab Corporation | SEC |
| Apr 30, 20264:24 PM ET | Donghyun Thomas HwangOfficer | 8.93K | $2.41M | Apr 30, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |
| Apr 24, 20266:22 PM ET | Ocampo SusanOwner | 100.0K | $29.0M | Apr 24, 2026 | The Charles Schwab Corporation | SEC |
| Apr 21, 20266:18 PM ET | Ocampo SusanOwner | 66.5K | $19.0M | Apr 21, 2026 | The Charles Schwab Corporation | SEC |
| Apr 17, 20265:15 PM ET | Susan OcampoOwner | 87.9K | $24.3M | Apr 17, 2026 | Goldman Sachs & Co. LLC | SEC |
| Apr 16, 20264:37 PM ET | Susan OcampoOwner | 100.0K | $26.1M | Apr 16, 2026 | Goldman Sachs & Co. LLC | SEC |
| Apr 15, 20265:39 PM ET | Susan OcampoOwner | 76.2K | $19.9M | Apr 15, 2026 | Goldman Sachs & Co. LLC | SEC |
| Apr 14, 20264:53 PM ET | Susan OcampoOwner | 61.9K | $16.3M | Apr 14, 2026 | Goldman Sachs & Co. LLC | SEC |
| Apr 13, 20265:15 PM ET | Susan OcampoOwner | 100.0K | $26.4M | Apr 13, 2026 | Goldman Sachs & Co. LLC | SEC |
Showing the latest 25. See the MTSI notices from the last 12 months