SEC Form 4 · accession 0000950103-26-008671

Ultra Clean Holdings, Inc. · UCTT

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

Brian E Harding

Officer — Chief Accounting Officer

Period of report

Jun 4, 2026

Accepted (ET)

Jun 8, 2026 · 7:59 pm EDT

Rule 10b5-1 plan

yes — trade under a plan

Issuer CIK

0001275014

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I
Common Stock^F1	Jun 4, 2026	S	196	$85.86	D	44,847	D
Common Stock^F2	Jun 4, 2026	S	1,176	$87.72	D	43,671	D
Common Stock^F3	Jun 4, 2026	S	1,933	$88.74	D	41,738	D
Common Stock^F4	Jun 4, 2026	S	1,407	$89.73	D	40,331	D
Common Stock^F5	Jun 4, 2026	S	1,876	$90.79	D	38,455	D
Common Stock^F6	Jun 4, 2026	S	636	$91.65	D	37,819	D
Common Stock^F7	Jun 4, 2026	S	488	$87.25	D	37,331	D
Common Stock^F8	Jun 4, 2026	S	1,199	$88.47	D	36,132	D
Common Stock^F9	Jun 4, 2026	S	886	$89.36	D	35,246	D
Common Stock^F10	Jun 4, 2026	S	1,277	$90.73	D	33,969	D
Common Stock^F11	Jun 4, 2026	S	389	$91.59	D	33,580	D
Common Stock	Jun 4, 2026	S	54	$86.00	D	33,526	D
Common Stock^F12	Jun 4, 2026	S	226	$87.71	D	33,300	D
Common Stock^F13	Jun 4, 2026	S	381	$88.76	D	32,919	D
Common Stock^F14	Jun 4, 2026	S	169	$89.67	D	32,750	D
Common Stock^F15	Jun 4, 2026	S	375	$90.76	D	32,375	D
Common Stock^F16	Jun 4, 2026	S	117	$91.63	D	32,258	D
Common Stock^F17	Jun 4, 2026	S	496	$87.22	D	31,762	D
Common Stock^F18	Jun 4, 2026	S	1,002	$88.36	D	30,760	D
Common Stock^F19	Jun 4, 2026	S	1,056	$89.33	D	29,704	D
Common Stock^F20	Jun 4, 2026	S	986	$90.55	D	28,718	D
Common Stock^F21	Jun 4, 2026	S	663	$91.38	D	28,055	D

Table II — derivative securities

No Table II lines on this filing.

Explanation of responses

F1This is the weighted average sale price. Shares were sold in multiple transactions at prices from $85.5350 to $86.1650. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (1).
F10This is the weighted average sale price. Shares were sold in multiple transactions at prices from $90.2150 to $91.0900. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (10).
F11This is the weighted average sale price. Shares were sold in multiple transactions at prices from $91.2400 to $91.8200. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (11).
F12This is the weighted average sale price. Shares were sold in multiple transactions at prices from $87.3000 to $88.1700. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (12).
F13This is the weighted average sale price. Shares were sold in multiple transactions at prices from $88.3650 to $89.2250. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (13).
F14This is the weighted average sale price. Shares were sold in multiple transactions at prices from $89.4350 to $90.0900. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (14).
F15This is the weighted average sale price. Shares were sold in multiple transactions at prices from $90.4400 to $91.1800. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (15).
F16This is the weighted average sale price. Shares were sold in multiple transactions at prices from $91.5350 to $91.8200. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (16).
F17This is the weighted average sale price. Shares were sold in multiple transactions at prices from $86.5900 to $87.5000. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (17).
F18This is the weighted average sale price. Shares were sold in multiple transactions at prices from $87.7950 to $88.7100. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (18).
F19This is the weighted average sale price. Shares were sold in multiple transactions at prices from $88.8200 to $89.7800. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (19).
F2This is the weighted average sale price. Shares were sold in multiple transactions at prices from $87.2700 to $88.2550. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2).
F20This is the weighted average sale price. Shares were sold in multiple transactions at prices from $89.9800 to $90.9000. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (20).
F21This is the weighted average sale price. Shares were sold in multiple transactions at prices from $90.9900 to $91.8400. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (21).
F3This is the weighted average sale price. Shares were sold in multiple transactions at prices from $88.3400 to $89.1900. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (3).
F4This is the weighted average sale price. Shares were sold in multiple transactions at prices from $89.3400 to $90.2850. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (4).
F5This is the weighted average sale price. Shares were sold in multiple transactions at prices from $90.3400 to $91.1900. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (5).
F6This is the weighted average sale price. Shares were sold in multiple transactions at prices from $91.5350 to $91.8600. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (6).
F7This is the weighted average sale price. Shares were sold in multiple transactions at prices from $86.8800 to $87.4000. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (7).
F8This is the weighted average sale price. Shares were sold in multiple transactions at prices from $87.9900 to $88.9750. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (8).
F9This is the weighted average sale price. Shares were sold in multiple transactions at prices from $89.0900 to $89.6400. The reporting person undertakes to provide to the issuer, any security holder of the issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (9).