Company · Ownership research

MACOM Technology Solutions Holdings, Inc. MTSI

CIK 0001493594

Form 4 transactions dated Sep 1, 2023 to Sep 25, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 69 rows; the complete set is available through the API.

Insider filings on file run through 2026-09-01.

Insider purchases & sales

Purchased: $0.00
Sold: $1.21B

Sep 1, 2023 – Sep 1, 2026
Available records · partial months are marked ·

202510 of 30 preview events · 69 available in 2025

Date	Insider	Activity	Trade value (USD)	% of prior holding
2025-12-09	OCAMPO SUSAN 10% owner	Sale	$23.01M 121,067 shares sold	2.63% sold Trust holding	▾
2025-12-05	OCAMPO SUSAN 10% owner	Sale	$14.57M 76,642 shares sold	1.64% sold Trust holding	▾
2025-12-04	Hwang Donghyun Thomas SVP, Global Sales	Sale10b5-1 footnote	$811.57K 4,372 shares sold	9.06% sold Direct holding	▾
2025-12-04	OCAMPO SUSAN 10% owner	Sale	$435.29K 2,291 shares sold	0.05% sold Trust holding	▾
2025-12-03	OCAMPO SUSAN 10% owner	Sale	$17.25M 95,829 shares sold	2.01% sold Trust holding	▾
2025-12-02	OCAMPO SUSAN 10% owner	Sale	$750.78K 4,171 shares sold	0.09% sold Trust holding	▾
2025-12-01	Daly Stephen G President and CEO · Director	Sale10b5-1 footnote	$3.46M 20,000 shares sold	26.95% sold Direct holding	▾
2025-11-24	BLAND CHARLES R Director	Sale	$660.00K 4,000 shares sold	20.66% sold Direct holding	▾
2025-11-19	Roth Ambra R. SVP, GC and Secretary	Sale10b5-1 footnote	$2.78M 17,268 shares sold	63.71% sold Direct holding	▾
2025-11-19	Hwang Donghyun Thomas SVP, Global Sales	Sale10b5-1 footnote	$610.38K 3,789 shares sold	7.08% sold Direct holding	▾

Showing 30 / 69 record groups in 2025. The complete set is available through the API.

MACOM Technology Solutions Holdings, Inc. · MTSI

Follow the people behind the trades.

Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and reach other datasets through the Akkru API.

Download CSV
Earlier filings
Advanced screening & filtering
API & AI access

Already have an account?

＋ New accounts get free API credits to explore data beyond ownership filings.

For AI agents & developers

The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 30 of 69 purchase / sale groups and 30 of 54 other groups; the totals and the monthly series cover the whole window.

Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.

MCP  https://api.akkrudata.ai/mcp

list_insider_transactions
{"ticker":"MTSI","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.

MCP endpoint: https://api.akkrudata.ai/mcp
API / MCP documentation: /documents
llms.txt: /llms.txt

Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.