SEC Form 4
MACOM Technology Solutions Holdings, Inc (MTSI) insider trading
In the 12 months to Oct 23, 2026, 10 MTSI insiders reported open-market sales of $355.9M across 38 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $355.9M
- 38 filings · 10 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 19 of 38
- $36.3M of $355.9M sold (10%)
Who traded MTSI, and when
- Sale
- Sale, pre-arranged (10b5-1)
MTSI daily close from Oct 23, 2025 to Oct 23, 2026, between $139.31 and $409.68, last $236.24. 38 sale and 0 purchase filings by 10 insiders, marked at their filing dates. Susan Ocampo, 10% owner: sold $300.3M across 11 filings, first filed Oct 27, 2025, last Feb 26, 2026. Peter Y. Chung, Director: sold $16.4M across 1 filing, first filed May 18, 2026, last May 18, 2026. Stephen G. Daly, President and CEO: sold $12.8M across 3 filings, first filed Nov 13, 2025, last Jun 2, 2026. John Kober, Senior VP and CFO: sold $10.4M across 6 filings, first filed Oct 29, 2025, last Aug 19, 2026. Donghyun Thomas Hwang, SVP, Global Sales: sold $5.6M across 6 filings, first filed Nov 21, 2025, last Jun 29, 2026. Robert Dennehy, Senior VP and COO: sold $4.6M across 2 filings, first filed Mar 2, 2026, last Sep 1, 2026. 4 others: sold $5.9M across 9 filings, first filed Nov 18, 2025, last Oct 5, 2026.
Largest mark · tap a row for others
Susan Ocampo · 10% owner
Sale $79,981,686
315,272 shares at $253.69 avg
Filed Feb 26, 2026 · traded Feb 24
Close on filing date $247.11
Susan Ocampo · 10% owner
10% owner
$300.3M soldPeter Y. Chung · Director
Director
$16.4M soldStephen G. Daly · President and CEO
President and CEO
$12.8M soldJohn Kober · Senior VP and CFO
Senior VP and CFO
$10.4M soldDonghyun Thomas Hwang · SVP, Global Sales
SVP, Global Sales
$5.6M soldRobert Dennehy · Senior VP and COO
Senior VP and COO
$4.6M sold4 others
Combined, one mark per week
$5.9M soldHas MACOM Technology Solutions Holdings, Inc's CEO sold stock?
Yes. Stephen G. Daly (CEO) sold 55,828 shares ($12.8M) between Nov 2025 and Jun 2026, all under a pre-arranged 10b5-1 plan.
Open-market trades
38 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Susan Ocampo | 10% owner | $300.3M | — | 11 | — | |
| Peter Y. Chung | Director | $16.4M | — | 1 | — | |
| Stephen G. Daly | President and CEO | $12.8M | — | 3 | 100% of sales | |
| John Kober | Senior VP and CFO | $10.4M | — | 6 | 100% of sales | |
| Donghyun Thomas Hwang | SVP, Global Sales | $5.6M | — | 6 | 100% of sales | |
| Robert Dennehy | Senior VP and COO | $4.6M | — | 2 | 100% of sales | |
| Ambra R. Roth | SVP, GC and Secretary | $3.0M | — | 2 | 100% of sales | |
| Charles R. Bland | Director | $1.4M | — | 4 | — | |
| Geoffrey G. Ribar | Director | $1.2M | — | 2 | — | |
| John Ritchie | Director | $401.1K | — | 1 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Ambra R. Roth SVP, GC and Secretary | SalePre-arranged (10b5-1) | 653 | $300.00 | $195.9K | 9,184 | |
traded | Robert Dennehy Senior VP and COO | SalePre-arranged (10b5-1) | 252 | $275.20 | $69.4K | 12,758 | |
traded | John Kober Senior VP and CFO | SalePre-arranged (10b5-1) | 7,389 | $326.08 | $2.4M | 38,082 | |
traded | Donghyun Thomas Hwang SVP, Global Sales | SalePre-arranged (10b5-1) | 2,620 | $383.87 | $1.0M | 31,156 | |
traded | Stephen G. Daly President and CEO | SalePre-arranged (10b5-1) | 15,828 | $365.75 | $5.8M | 40,689 | |
traded | Donghyun Thomas Hwang SVP, Global Sales | SalePre-arranged (10b5-1) | 2,595 | $360.64 | $935.9K | 32,571 | |
traded | John Kober Senior VP and CFO | SalePre-arranged (10b5-1) | 7,644 | $359.25 | $2.7M | 43,172 | |
traded | Peter Y. Chung Director | Sale | 43,268 | $378.20 | $16.4M | 6,781 | |
traded | Charles R. Bland Director | Sale | 800 | $380.00 | $304.0K | 14,338 | |
traded | Geoffrey G. Ribar Director | Sale | 1,623 | $361.84 | $587.3K | 12,563 | |
traded | Donghyun Thomas Hwang SVP, Global Sales | SalePre-arranged (10b5-1) | 3,718 | $276.74 | $1.0M | 35,151 | |
traded | Robert Dennehy Senior VP and COO | SalePre-arranged (10b5-1) | 18,398 | $245.25 | $4.5M | 17,911 | |
traded | John Ritchie Director | Sale | 1,573 | $255.00 | $401.1K | 8,690 | |
traded | Geoffrey G. Ribar Director | Sale | 2,244 | $253.59 | $569.1K | 13,410 | |
traded | Susan Ocampo 10% owner | Sale | 315,272 | $253.69 | $80.0M | 3,980,646 | |
traded | John Kober Senior VP and CFO | SalePre-arranged (10b5-1) | 7,196 | $243.07 | $1.7M | 55,504 | |
traded | Susan Ocampo 10% owner | Sale | 83,279 | $245.49 | $20.4M | 4,075,167 | |
traded | Charles R. Bland Director | Sale | 1,000 | $240.82 | $240.8K | 14,362 | |
traded | Susan Ocampo 10% owner | Sale | 119,877 | $241.11 | $28.9M | 4,178,323 | |
traded | Susan Ocampo 10% owner | Sale | 100,000 | $235.85 | $23.6M | 4,278,323 | |
traded | Susan Ocampo 10% owner | Sale | 100,000 | $230.29 | $23.0M | 4,378,323 | |
traded | Donghyun Thomas Hwang SVP, Global Sales | SalePre-arranged (10b5-1) | 5,274 | $226.06 | $1.2M | 40,504 | |
traded | Susan Ocampo 10% owner | Sale | 121,067 | $190.07 | $23.0M | 4,478,323 | |
traded | Donghyun Thomas Hwang SVP, Global Sales | SalePre-arranged (10b5-1) | 4,372 | $185.63 | $811.6K | 43,878 | |
traded | Susan Ocampo 10% owner | Sale | 78,933 | $190.10 | $15.0M | 4,599,390 | |
traded | Susan Ocampo 10% owner | Sale | 100,000 | $180.06 | $18.0M | 4,678,323 | |
traded | Stephen G. Daly President and CEO | SalePre-arranged (10b5-1) | 20,000 | $173.16 | $3.5M | 74,018 | |
traded | Charles R. Bland Director | Sale | 4,000 | $165.00 | $660.0K | 15,362 | |
traded | Donghyun Thomas Hwang SVP, Global Sales | SalePre-arranged (10b5-1) | 3,789 | $161.09 | $610.4K | 51,827 | |
traded | Ambra R. Roth SVP, GC and Secretary | SalePre-arranged (10b5-1) | 17,268 | $160.91 | $2.8M | 25,096 | |
traded | Charles R. Bland Director | Sale | 1,000 | $157.79 | $157.8K | 19,762 | |
traded | John Kober Senior VP and CFO | SalePre-arranged (10b5-1) | 972 | $175.63 | $170.7K | 55,640 | |
traded | Stephen G. Daly President and CEO | SalePre-arranged (10b5-1) | 20,000 | $175.73 | $3.5M | 86,029 | |
traded | Susan Ocampo 10% owner | Sale | 200,000 | $165.36 | $33.1M | 4,216,954 | |
traded | John Kober Senior VP and CFO | SalePre-arranged (10b5-1) | 18,506 | $167.58 | $3.1M | 65,368 | |
traded | Susan Ocampo 10% owner | Sale | 132,873 | $148.15 | $19.7M | 2,577,334 | |
traded | John Kober Senior VP and CFO | SalePre-arranged (10b5-1) | 1,497 | $145.53 | $217.9K | 43,580 | |
traded | Susan Ocampo 10% owner | Sale | 107,376 | $144.86 | $15.6M | 2,710,207 |
GET /stocks/filings/vX/form-4?tickers=MTSI&filing_date.gte=2025-10-23&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"MTSI"
],
"issuer_cik": "0001493594",
"owner_cik": "0001792846",
"accession_number": "0000904454-26-000506",
"form_type": "4",
"filing_date": "2026-10-05",
"period_of_report": "2026-10-01",
"issuer_name": "MACOM Technology Solutions Holdings, Inc.",
"issuer_trading_symbol": "MTSI",
"owner_name": "Roth Ambra R.",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "SVP, GC and Secretary",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-01",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 653,
"transaction_price_per_share": 300,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 9184,
"transaction_value": 195900,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The shares were sold pursuant to a sales plan adopted by the Reporting Person on May 21, 2026 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934."
}
]
},
{
"tickers": [
"MTSI"
],
"issuer_cik": "0001493594",
"owner_cik": "0001588004",
"accession_number": "0000904454-26-000476",
"form_type": "4",
"filing_date": "2026-09-01",
"period_of_report": "2026-08-28",
"issuer_name": "MACOM Technology Solutions Holdings, Inc.",
"issuer_trading_symbol": "MTSI",
"owner_name": "Dennehy Robert",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Senior VP and COO",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-08-28",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 252,
"transaction_price_per_share": 275.2,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 12758,
"transaction_value": 69350.4,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "The shares were sold pursuant to a sales plan adopted by the Reporting Person on May 29, 2026 and intended to comply with Rule 10b5-1 under the Securities Exchange Act of 1934."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 57 records
- Tax withholding24 records
- Grants and awards27 records
- Gifts6 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for MTSI every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.