Insider · CIK 0001791106

Cho Paul Yoonku

Reports to the SEC for 2 companies · HAYWARD, CA

sec.gov

Transactions

Companies

Filings

CIK

0001791106

Forms 4 and 5

Insider transactions

48 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-06-02	UCTTUltra Clean Holdings, Inc.S Sale	General Counsel and Secretary	SSale	−944 sh	$89.37	−$84.4K	22,941
2026-05-22	UCTTUltra Clean Holdings, Inc.A Award	General Counsel and Secretary	AAward	+8,041 sh	—	—	23,885
2026-05-08	UCTTUltra Clean Holdings, Inc.S Sale	General Counsel and Secretary	SSale	−2,000 sh	$86.89	−$174K	15,844
2026-04-30	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−2,454 sh	$78.15	−$192K	17,844
2026-04-30	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−1,582 sh	$78.15	−$124K	21,763
2026-04-30	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−1,465 sh	$78.15	−$114K	20,298
2025-06-06	UCTTUltra Clean Holdings, Inc.S Sale	General Counsel and Secretary	SSale	−4,084 sh	$21.06	−$86K	23,345
2025-04-30	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−1,579 sh	$18.71	−$29.5K	29,886
2025-04-30	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−1,462 sh	$18.71	−$27.4K	28,424
2025-04-30	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−995 sh	$18.71	−$18.6K	27,429
2025-04-25	UCTTUltra Clean Holdings, Inc.A Award	General Counsel and Secretary	AAward	+14.5K sh	—	—	31,465
2025-03-31	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−173 sh	$21.41	−$3,703.93	16,993
2024-05-17	UCTTUltra Clean Holdings, Inc.S Sale	General Counsel and Secretary	SSale	−3,449 sh	$44.79	−$154K	17,166
2024-04-30	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−1,576 sh	$41.83	−$65.9K	20,615
2024-04-30	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−993 sh	$41.83	−$41.5K	22,805
2024-04-30	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−614 sh	$41.83	−$25.7K	22,191
2024-04-26	UCTTUltra Clean Holdings, Inc.A Award	General Counsel and Secretary	AAward	+8,644 sh	—	—	23,798
2024-03-31	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−173 sh	$45.94	−$7,947.62	15,154
2024-03-31	UCTTUltra Clean Holdings, Inc.A Award	General Counsel and Secretary	AAward	+363 sh	—	—	15,510
2024-03-31	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−183 sh	$45.94	−$8,407.02	15,327
2023-12-04	UCTTUltra Clean Holdings, Inc.S Sale	General Counsel and Secretary	SSale	−4,689 sh	$28.38	−$133K	15,147
2023-05-26	UCTTUltra Clean Holdings, Inc.S Sale	General Counsel and Secretary	SSale	−176 sh	$36.10	−$6,353.776	19,836
2023-04-30	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−1,988 sh	$28.54	−$56.7K	21,786
2023-04-30	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−662 sh	$28.54	−$18.9K	23,774
2023-04-30	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−588 sh	$28.54	−$16.8K	21,198
2023-04-30	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−235 sh	$28.54	−$6,706.9	20,963
2023-04-30	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−951 sh	$28.54	−$27.1K	20,012
2023-04-28	UCTTUltra Clean Holdings, Inc.A Award	General Counsel and Secretary	AAward	+9,330 sh	—	—	24,436
2023-03-31	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−166 sh	$33.16	−$5,504.56	15,106
2022-11-03	UCTTUltra Clean Holdings, Inc.S Sale	General Counsel and Secretary	SSale	−2,949 sh	$29.41	−$86.7K	15,272
2022-10-31	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−2,785 sh	$31.11	−$86.6K	18,221
2022-05-11	UCTTUltra Clean Holdings, Inc.S Sale	General Counsel and Secretary	SSale	−3,536 sh	$30.41	−$108K	21,006
2022-04-30	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−239 sh	$31.17	−$7,449.63	25,141
2022-04-30	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−599 sh	$31.17	−$18.7K	24,542
2022-04-29	UCTTUltra Clean Holdings, Inc.A Award	General Counsel and Secretary	AAward	+5,879 sh	—	—	25,380
2022-04-24	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−2,112 sh	$33.56	−$70.9K	19,501
2022-04-24	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−667 sh	$33.56	−$22.4K	21,613
2022-03-25	UCTTUltra Clean Holdings, Inc.A Award	General Counsel and Secretary	AAward	+1,026 sh	—	—	22,280
2021-11-03	UCTTUltra Clean Holdings, Inc.S Sale	General Counsel and Secretary	SSale	−9,247 sh	$55.24	−$511K	21,254
2021-10-25	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−2,982 sh	$42.98	−$128K	30,501
2021-04-30	UCTTUltra Clean Holdings, Inc.A Award	General Counsel and Secretary	AAward	+969 sh	—	—	33,483
2021-04-30	UCTTUltra Clean Holdings, Inc.A Award	General Counsel and Secretary	AAward	+3,637 sh	—	—	32,514
2021-04-24	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−2,119 sh	$54.11	−$115K	28,877
2021-04-24	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−646 sh	$54.11	−$35K	30,996
2021-02-10	UCTTUltra Clean Holdings, Inc.A Award	General Counsel and Secretary	AAward	+4,092 sh	—	—	31,642
2020-10-25	UCTTUltra Clean Holdings, Inc.F Tax Payment	General Counsel and Secretary	FTax Payment	−1,929 sh	$23.58	−$45.5K	27,550
2020-04-24	UCTTUltra Clean Holdings, Inc.A Award	General Counsel and Secretary	AAward	+12.3K sh	—	—	29,479
2019-10-25	UCTTUltra Clean Holdings, Inc.A Award	General Counsel and Secretary	AAward	+17.2K sh	—	—	17,201

Recent filings

Accepted (ET)
Jun 44
Cho Paul Yoonku0000950103-26-008550
SEC(opens sec.gov)
May 274
Cho Paul Yoonku0000950103-26-007862
SEC(opens sec.gov)
May 124
Cho Paul Yoonku0000950103-26-007117
SEC(opens sec.gov)
May 44
Cho Paul Yoonku0000950103-26-006809
SEC(opens sec.gov)
Jun 104
Cho Paul Yoonku0000950103-25-007239
SEC(opens sec.gov)
May 24
Cho Paul Yoonku0000950103-25-005714
SEC(opens sec.gov)
Apr 294
Cho Paul Yoonku0000950103-25-005453
SEC(opens sec.gov)
Apr 24
Cho Paul Yoonku0000950103-25-004328
SEC(opens sec.gov)
May 214
Cho Paul Yoonku0000950103-24-006984
SEC(opens sec.gov)
May 24
Cho Paul Yoonku0000950103-24-006314
SEC(opens sec.gov)
Apr 304
Cho Paul Yoonku0000950103-24-006077
SEC(opens sec.gov)
Apr 24
Cho Paul Yoonku0000950103-24-004814
SEC(opens sec.gov)

Companies

Address

ULTRA CLEAN HOLDINGS, INC. 26462 CORPORATE AVE

HAYWARD, CA, 94545