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person · Reporting owner

HARDING BRIAN E

Disclosed activity across 2 companies

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31692
SEC CIK
0001672993

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
FLIR SYSTEMS INCFLIR · Entity 139418VP, Corporate Controller & PAOSeptember 17, 2019September 18, 2019
Ultra Clean Holdings, Inc.UCTT · Entity 1193Chief Accounting OfficerJuly 02, 2026July 07, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

FLIR SYSTEMS INC

Report date September 17, 2019 · Filed September 18, 2019

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect8,876 Reported balance After 2019-09-17 transaction · row 1
1 source row

Row 1 · 2019-09-17 · Sale · Disposed 3,625 · Balance 8,876

Ultra Clean Holdings, Inc.

Report date July 02, 2026 · Filed July 07, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect33,581 Ending reported balance After 2026-07-02 transaction · row 3
3 source rows · reconciled sequence

Row 1 · 2026-07-02 · Sale · Disposed 440 · Balance 36,978

F1: The sale reported was effected by the reporting person pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on March 5, 2026.

F2: This is the weighted average sale price. Shares were sold in multiple transactions at prices from $126.3500 to $127.1650. 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 footnote (2) to this Form 4.

Row 2 · 2026-07-02 · Sale · Disposed 2,194 · Balance 34,784

F1: The sale reported was effected by the reporting person pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on March 5, 2026.

F3: This is the weighted average sale price. Shares were sold in multiple transactions at prices from $127.5050 to $128.5000. 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 footnote (3) to this Form 4.

Row 3 · 2026-07-02 · Sale · Disposed 1,203 · Balance 33,581

F1: The sale reported was effected by the reporting person pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on March 5, 2026.

F4: This is the weighted average sale price. Shares were sold in multiple transactions at prices from $129.5900 to $130.2400. 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 footnote (4) to this Form 4.

Filing footnotes · ownership attribution and instrument terms

F1: The sale reported was effected by the reporting person pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on March 5, 2026.

F2: This is the weighted average sale price. Shares were sold in multiple transactions at prices from $126.3500 to $127.1650. 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 footnote (2) to this Form 4.

F3: This is the weighted average sale price. Shares were sold in multiple transactions at prices from $127.5050 to $128.5000. 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 footnote (3) to this Form 4.

F4: This is the weighted average sale price. Shares were sold in multiple transactions at prices from $129.5900 to $130.2400. 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 footnote (4) to this Form 4.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
July 02, 2026 Filed Jul 7, 2026 23:06 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 1,203 $130.12 $156,538.57
Disclosure

SEC source: 0000950103-26-010375 · ownership.xml · nonDerivative · entry 3

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 33,581

F1 · shares: The sale reported was effected by the reporting person pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on March 5, 2026.

F4 · price: This is the weighted average sale price. Shares were sold in multiple transactions at prices from $129.5900 to $130.2400. 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 footnote (4) to this Form 4.

Read SEC document
July 02, 2026 Filed Jul 7, 2026 23:06 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 2,194 $128.37 $281,637.86
Disclosure

SEC source: 0000950103-26-010375 · ownership.xml · nonDerivative · entry 2

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 34,784

F1 · shares: The sale reported was effected by the reporting person pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on March 5, 2026.

F3 · price: This is the weighted average sale price. Shares were sold in multiple transactions at prices from $127.5050 to $128.5000. 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 footnote (3) to this Form 4.

Read SEC document
July 02, 2026 Filed Jul 7, 2026 23:06 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 440 $126.92 $55,843.08
Disclosure

SEC source: 0000950103-26-010375 · ownership.xml · nonDerivative · entry 1

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 36,978

F1 · shares: The sale reported was effected by the reporting person pursuant to the Rule 10b5-1 trading plan adopted by the reporting person on March 5, 2026.

F2 · price: This is the weighted average sale price. Shares were sold in multiple transactions at prices from $126.3500 to $127.1650. 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 footnote (2) to this Form 4.

Read SEC document
June 26, 2026 Filed Jul 1, 2026 01:35 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 GrantCommon Stock 9,363 $0.00 $0.00
Disclosure

SEC source: 0000950103-26-009883 · ownership.xml · nonDerivative · entry 1

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,418

F1 · shares: Restricted stock units vest over 3 years with equal parts vesting on each anniversary of the vesting commencement date of June 26, 2026.

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 663 $91.38 $60,584.94
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 22

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,055

F21 · price: This 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).

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 986 $90.55 $89,282.30
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 21

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 28,718

F20 · price: This 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).

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 1,056 $89.33 $94,332.48
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 20

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 29,704

F19 · price: This 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).

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 1,002 $88.36 $88,536.72
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 19

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 30,760

F18 · price: This 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).

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 496 $87.22 $43,261.12
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 18

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 31,762

F17 · price: This 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).

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 117 $91.63 $10,720.71
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 17

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 32,258

F16 · price: This 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).

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 375 $90.76 $34,035.00
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 16

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 32,375

F15 · price: This 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).

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 169 $89.67 $15,154.23
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 15

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 32,750

F14 · price: This 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).

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 381 $88.76 $33,817.56
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 14

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 32,919

F13 · price: This 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).

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 226 $87.71 $19,822.46
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 13

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 33,300

F12 · price: This 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).

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 54 $86.00 $4,644.00
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 12

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 33,526

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 389 $91.59 $35,628.51
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 11

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 33,580

F11 · price: This 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).

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 1,277 $90.73 $115,862.21
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 10

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 33,969

F10 · price: This 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).

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 886 $89.36 $79,172.96
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 9

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 35,246

F9 · price: This 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).

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 1,199 $88.47 $106,075.53
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 8

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 36,132

F8 · price: This 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).

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 488 $87.25 $42,578.00
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 7

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 37,331

F7 · price: This 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).

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 636 $91.65 $58,289.40
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 6

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 37,819

F6 · price: This 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).

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 1,876 $90.79 $170,322.04
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 5

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 38,455

F5 · price: This 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).

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 1,407 $89.73 $126,250.11
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 4

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 40,331

F4 · price: This 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).

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 1,933 $88.74 $171,534.42
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 3

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 41,738

F3 · price: This 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).

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 1,176 $87.72 $103,158.72
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 2

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 43,671

F2 · price: This 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).

Read SEC document
June 04, 2026 Filed Jun 8, 2026 23:59 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 196 $85.86 $16,828.56
Disclosure

SEC source: 0000950103-26-008671 · ownership.xml · nonDerivative · entry 1

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 44,847

F1 · price: This 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).

Read SEC document
May 22, 2026 Filed May 28, 2026 01:44 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 GrantCommon Stock 8,412 $0.00 $0.00
Disclosure

SEC source: 0000950103-26-007849 · ownership.xml · nonDerivative · entry 1

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 45,043

F1 · shares: Restricted stock units vest over 3 years with equal parts vesting on each anniversary of the vesting commencement date of May 22, 2026.

Read SEC document
May 05, 2026 Filed May 8, 2026 00:13 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 4,000 $80.00 $320,000.00
Disclosure

SEC source: 0000950103-26-006972 · ownership.xml · nonDerivative · entry 1

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,631

F1 · balance_after: This sale represents directly owned Shares.

Read SEC document
April 30, 2026 Filed May 5, 2026 01:14 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 Tax withholdingCommon Stock 3,009 $78.15 $235,153.35
Disclosure

SEC source: 0000950103-26-006813 · ownership.xml · nonDerivative · entry 3

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,631

F1 · shares: Represents shares automatically withheld for payment of tax liability arising as a result of the partial settlement of restricted stock unit awards that vested.

Read SEC document
April 30, 2026 Filed May 5, 2026 01:14 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 Tax withholdingCommon Stock 2,640 $78.15 $206,316.00
Disclosure

SEC source: 0000950103-26-006813 · ownership.xml · nonDerivative · entry 2

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,640

F1 · shares: Represents shares automatically withheld for payment of tax liability arising as a result of the partial settlement of restricted stock unit awards that vested.

Read SEC document
April 30, 2026 Filed May 5, 2026 01:14 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 Tax withholdingCommon Stock 1,957 $78.15 $152,939.55
Disclosure

SEC source: 0000950103-26-006813 · ownership.xml · nonDerivative · entry 1

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,280

F1 · shares: Represents shares automatically withheld for payment of tax liability arising as a result of the partial settlement of restricted stock unit awards that vested.

Read SEC document
June 30, 2025 Filed Jul 3, 2025 01:26 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 Tax withholdingCommon Stock 4,198 $22.57 $94,748.86
Disclosure

SEC source: 0000950103-25-008427 · dp231163_4-harding.xml · nonDerivative · entry 1

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,237

F1 · shares: Represents shares automatically withheld for payment of tax liability arising as a result of the partial settlement of restricted stock unit awards that vested.

F2 · balance_after: Represents shares currently held. This includes 729 shares purchased under the UCTT employee stock purchase plan.

Read SEC document
April 30, 2025 Filed May 3, 2025 01:03 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 Tax withholdingCommon Stock 2,640 $18.71 $49,394.40
Disclosure

SEC source: 0000950103-25-005716 · dp228530_4-harding.xml · nonDerivative · entry 2

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,706

F1 · shares: Represents shares automatically withheld for payment of tax liability arising as a result of the partial settlement of restricted stock unit awards that vested.

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April 30, 2025 Filed May 3, 2025 01:03 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 Tax withholdingCommon Stock 1,956 $18.71 $36,596.76
Disclosure

SEC source: 0000950103-25-005716 · dp228530_4-harding.xml · nonDerivative · entry 1

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,346

F1 · shares: Represents shares automatically withheld for payment of tax liability arising as a result of the partial settlement of restricted stock unit awards that vested.

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April 25, 2025 Filed Apr 30, 2025 01:12 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 GrantCommon Stock 18,090 $0.00 $0.00
Disclosure

SEC source: 0000950103-25-005454 · dp228266_4-harding.xml · nonDerivative · entry 1

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,302

F1 · shares: Restricted stock units vest over 3 years with equal parts vesting on each anniversary of the vesting commencement date of April 25, 2025.

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March 07, 2025 Filed Mar 11, 2025 22:39 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 PurchaseCommon Stock 4,000 $24.00 $96,000.00
Disclosure

SEC source: 0000950103-25-003279 · dp226164_4-harding.xml · nonDerivative · entry 1

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,212

F1 · balance_after: Represents shares currently held. This includes 593 shares purchased under the UCTT employee stock purchase plan.

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June 30, 2024 Filed Jul 2, 2024 22:11 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 Tax withholdingCommon Stock 3,796 $49.00 $186,004.00
Disclosure

SEC source: 0000950103-24-009603 · dp214140_4-harding.xml · nonDerivative · entry 1

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,619

F1 · shares: Represents shares automatically withheld for payment of tax liability arising as a result of the partial settlement of restricted stock unit awards that vested.

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May 09, 2024 Filed May 13, 2024 22:52 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 2,000 $43.50 $87,000.00
Disclosure

SEC source: 0000950103-24-006618 · dp211154_4-harding.xml · nonDerivative · entry 4

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,415

F4 · price: This sale represents directly owned Shares.

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May 09, 2024 Filed May 13, 2024 22:52 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 8,102 $44.00 $356,489.62
Disclosure

SEC source: 0000950103-24-006618 · dp211154_4-harding.xml · nonDerivative · entry 3

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 39,415

F3 · price: This is the weighted average sale price. Shares were sold in multiple transactions at prices from $44.0000 to $44.0200. 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 footnote (1) to this Form 4.

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May 09, 2024 Filed May 13, 2024 22:52 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 SaleCommon Stock 898 $43.71 $39,251.40
Disclosure

SEC source: 0000950103-24-006618 · dp211154_4-harding.xml · nonDerivative · entry 2

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,517

F2 · price: This is the weighted average sale price. Shares were sold in multiple transactions at prices from $43.6700 to $43.7300. 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 footnote (1) to this Form 4.

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May 03, 2024 Filed May 13, 2024 22:52 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 GrantCommon Stock 898 $21.94 $19,700.77
Disclosure

SEC source: 0000950103-24-006618 · dp211154_4-harding.xml · nonDerivative · entry 1

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,415

F1 · price: This acquisition of shares under the Ultra Clean Holdings, Inc. Employee Stock Purchase Plan is being voluntarily reported. This transaction is exempt pursuant to Rule 16b-3(c).

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April 30, 2024 Filed May 3, 2024 00:44 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 Tax withholdingCommon Stock 2,388 $41.83 $99,890.04
Disclosure

SEC source: 0000950103-24-006312 · dp210846_4-harding.xml · nonDerivative · entry 1

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,517

F1 · shares: Represents shares automatically withheld for payment of tax liability arising as a result of the partial settlement of restricted stock unit awards that vested.

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April 26, 2024 Filed May 1, 2024 01:58 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 GrantCommon Stock 11,237 $0.00 $0.00
Disclosure

SEC source: 0000950103-24-006081 · dp210627_4-harding.xml · nonDerivative · entry 1

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,905

F1 · shares: Restricted stock units vest over 3 years with equal parts vesting on each anniversary of the vesting commencement date of April 26, 2024.

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June 30, 2023 Filed Jul 5, 2023 23:07 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 Tax withholdingCommon Stock 2,599 $38.46 $99,957.54
Disclosure

SEC source: 0000950103-23-009935 · dp196402_4-harding.xml · nonDerivative · entry 1

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,668

F1 · shares: Represents shares automatically withheld for payment of tax liability arising as a result of the partial settlement of restricted stock unit awards that vested.

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April 28, 2023 Filed May 2, 2023 23:35 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 GrantCommon Stock 15,162 $0.00 $0.00
Disclosure

SEC source: 0000950103-23-006775 · dp193284_4-harding.xml · nonDerivative · entry 1

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,267

F1 · shares: Restricted stock units vest over 3 years with equal parts vesting on each anniversary of the vesting commencement date of April 28, 2023.

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June 24, 2022 Filed Jun 27, 2022 22:58 UTC Ultra Clean Holdings, Inc. UCTT · Entity 1193 GrantCommon Stock 24,105 $0.00 $0.00
Disclosure

SEC source: 0000950103-22-011321 · dp175993_4-harding.xml · nonDerivative · entry 1

HARDING BRIAN E · CIK 0001672993 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,105

F1 · security: Restricted stock units vest over 3 years with equal parts vesting on each anniversary of the vesting commencement date of June 24, 2022.

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September 17, 2019 Filed Sep 18, 2019 18:11 UTC FLIR SYSTEMS INC FLIR · Entity 139418 SaleCommon Stock 3,625 $52.48 $190,240.00
Disclosure

SEC source: 0000354908-19-000081 · wf-form4_156884466190376.xml · nonDerivative · entry 1

HARDING BRIAN E · CIK 0001672993 · VP, Corporate Controller & PAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,876

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May 20, 2019 Filed May 22, 2019 11:35 UTC FLIR SYSTEMS INC FLIR · Entity 139418 Tax withholdingCommon Stock 377 $52.99 $19,977.23
Disclosure

SEC source: 0000354908-19-000067 · wf-form4_155853934480204.xml · nonDerivative · entry 3

HARDING BRIAN E · CIK 0001672993 · VP, Corporate Controller & PAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,501

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May 20, 2019 Filed May 22, 2019 11:35 UTC FLIR SYSTEMS INC FLIR · Entity 139418 Tax withholdingCommon Stock 283 $52.58 $14,880.14
Disclosure

SEC source: 0000354908-19-000067 · wf-form4_155853934480204.xml · nonDerivative · entry 2

HARDING BRIAN E · CIK 0001672993 · VP, Corporate Controller & PAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,878

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May 20, 2019 Filed May 22, 2019 11:35 UTC FLIR SYSTEMS INC FLIR · Entity 139418 GrantCommon Stock 1,969 $0.00 $0.00
Disclosure

SEC source: 0000354908-19-000067 · wf-form4_155853934480204.xml · nonDerivative · entry 1

HARDING BRIAN E · CIK 0001672993 · VP, Corporate Controller & PAO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,161

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.