Company · Ownership research

COMFORT SYSTEMS USA INC FIX

CIK 0001035983

Form 4 transactions dated Nov 1, 2023 to Nov 8, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

Insider filings on file run through Aug 27, 2026.

Insider purchases & sales

Purchased: $149.98K
Sold: $279.80M

Nov 1, 2023 – Aug 27, 2026
Available records · partial months are marked ·

2023, from Nov 1, 20233 of 3 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Dec 11, 2023	Skidmore Constance Ellen Director	Sale10b5-1 footnote	$580.20K 3,000 shares sold	15.16% sold Direct holding	▾
Dec 6, 2023	Hardy Rhoman J Director	Purchase	$149.98K 784 shares bought	155.85% added Direct holding	▾
Nov 9, 2023	SANDBROOK WILLIAM J Director	Sale	$925.93K 5,000 shares sold	27.74% sold Direct holding	▾

Showing 3 / 3 record groups in 2023. The complete set is available through the API.

COMFORT SYSTEMS USA INC · FIX

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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 3 of 3 purchase / sale groups and 3 of 3 other groups; the totals and the monthly series cover the whole window.

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{"action":"list","ticker":"FIX","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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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. Share totals are on today's split-adjusted basis. 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.