Skip to main content

8-K

Ultra Clean Holdings, Inc. (UCTT)

8-K 2020-02-19 For: 2020-02-19
View Original
Added on April 10, 2026

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C.  20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of report (Date of earliest event reported): February 19, 2020
ULTRA CLEAN HOLDINGS, INC.
(Exact Name of Registrant<br><br> <br><br><br> <br>as Specified in Charter)
Delaware
(State or Other Jurisdiction of Incorporation)
000-50646 61-1430858
(Commission File Number) (IRS Employer Identification No.)
26462 CORPORATE AVENUE<br><br> <br><br><br> <br>HAYWARD, CA 94545
(Address of Principal Executive Offices) (Zip Code)
Registrant’s telephone number, including area code:  (510) 576-4400
n/a
(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class TradingSymbol(s) Name of each exchange on which registered
Common stock, par value $0.001 per share UCTT The NASDAQ Stock Market LLC<br><br> <br><br><br> <br>(NASDAQ Global Select Market)

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Item 2.02 Results of Operations and Financial Condition

On February 19, 2020, Ultra Clean Holdings, Inc. (the “Company”) issued a press release announcing its financial results for its fourth fiscal quarter and fiscal year ended December 27, 2019. A copy of the Company’s press release is attached hereto as Exhibit 99.1.

The information furnished under Item 2.02 of this Current Report on Form 8-K, including the exhibit, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), nor shall it be deemed incorporated by reference into the Company’s filings with the SEC under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01 Financial Statements and Exhibits

(d) Exhibits

ExhibitNo. Exhibit Description
99.1 Press Release dated February 19, 2020

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

ULTRA CLEAN HOLDINGS, INC.
Date: February 19, 2020 By: /s/ Paul Y. Cho
Name: Paul Y. Cho
Title: General Counsel and<br> Corporate Secretary

Exhibit 99.1


Press Release Source: Ultra Clean Holdings, Inc.

Ultra Clean Reports Fourth Quarter and Full Year 2019 FinancialResults

HAYWARD, Calif., February 19, 2020 /PRNewswire/ Ultra Clean Holdings, Inc. (Nasdaq: UCTT), today reported its financial results for the fourth quarter and full year ended December 27, 2019.

“UCT’s solid performance resulted in a very strong fourth quarter with revenue growing more than 12 percent and earnings per share increasing more than 57 percent sequentially on increased demand,” said Jim Scholhamer, CEO. “We are excited about the opportunities that lie ahead as the industry ramps to keep pace with technology transitions, and will continue to manage our business with a focus on sustainable and profitable growth.”

“UCT generated $32.0 million of cash from operations in the quarter, bringing the total for the year to a record $121.0 million,” added Sheri Savage, CFO. “We paid down our long-term debt by $50.0 million during the year, significantly reducing our leverage, and ended the quarter with a cash balance of $162.5 million.”

Fourth Quarter 2019 GAAP Financial Results

Total revenue was $286.4 million. SPS contributed $230.2 million and SSB added $56.2 million. Total gross margin was 19.7%, operating margin was 1.6%, and net loss was $10.3 million or $(0.26) per basic share. This compares to total revenue of $254.3 million, gross margin of 18.7%, operating margin of 3.2%, and net income of $0.5 million or $0.01 per basic and diluted share last quarter.

Fourth Quarter 2019 Non-GAAP Financial Results

On a non-GAAP basis, gross margin was 20.1%, operating margin was 8.1%, and net income was $13.2 million or $0.33 per diluted share and $0.40 per diluted share excluding stock-based compensation. This compares to gross margin of 19.2%, operating margin of 5.8%, and net income of $8.5 million or $0.21 per diluted share and $0.28 per diluted share excluding stock-based compensation last quarter.

Full Year 2019 GAAPFinancial Results

Total revenue was $1,066.2 million. SPS contributed $840.9 million and SSB added $225.3 million. Total gross margin was 18.5%, operating margin was 2.8%, and net loss was $9.4 million or $(0.24) per basic share. This compares to total revenue of $1,096.5 million, gross margin of 16.0%, operating margin of 5.5%, and net income of $36.6 million or $0.94 per diluted share in the prior year.

Full Year 2019 Non-GAAP Financial Results

On a non-GAAP basis, gross margin was 19.0%, operating margin was 6.6%, and net income was $36.6 million or $0.91 per diluted share and $1.16 per diluted share excluding stock-based compensation. This compares to gross margin of 16.5%, operating margin of 7.8% and net income of $64.7 million or $1.66 per diluted share and $1.89 per diluted share excluding stock-based compensation in the prior year.

First Quarter 2020 Outlook

Due to limited visibility surrounding the coronavirus situation, the Company has widened its guidance ranges to reflect the heightened uncertainty in the marketplace. The Company expects revenue in the range of $290.0 million to $320.0 million and GAAP diluted net income per share to be between $0.24 and $0.36. The Company expects non-GAAP diluted net income per share to be between $0.40 and $0.52 excluding stock-based compensation. This compares to gross margin of 16.5%, operating margin of 7.8% and net income of $64.7 million or $1.66 per diluted share and $1.89 per diluted share excluding stock-based compensation in the prior year.

Conference Call

The call will take place at 1:45 p.m. PT today and can be accessed by dialing 1-844-826-3034 or 1-412-317-5179. No passcode is required. A replay of the call will be available by dialing 1-877-344-7529 or 1-412-317-0088 and entering the confirmation code 10138300. The Webcast will be available on the Investor Relations section of the Company's website at http://uct.com/investors/events/.

About Ultra Clean Holdings, Inc.

Ultra Clean Holdings, Inc. is a leading developer and supplier of critical subsystems, ultra-high purity cleaning and analytical services primarily for the semiconductor industry. Ultra Clean offers its customers an integrated outsourced solution for major subassemblies, improved design-to-delivery cycle times, design for manufacturability, prototyping and component manufacturing, and tool chamber parts cleaning and coating, as well as micro-contamination analytical services. Ultra Clean is headquartered in Hayward, California. Additional information is available at www.uct.com.

Use of Non-GAAP Measures

In addition to providing results that are determined in accordance with Generally Accepted Accounting Principles in the United States of America (GAAP), management uses non-GAAP gross margin, non-GAAP operating margin and non-GAAP net income to evaluate the Company's operating and financial results. We believe the presentation of non-GAAP results is useful to investors for analyzing our core business and business trends and comparing performance to prior periods, along with enhancing investors' ability to view the Company's results from management's perspective. The presentation of this additional information should not be considered a substitute for results prepared in accordance with GAAP. Tables presenting reconciliations from GAAP results to non-GAAP results are included at the end of this press release.

The Company currently defines non-GAAP net income as net income (loss) before amortization of intangible assets, restructuring charges, executive transition costs, acquisition costs, fair value adjustments, depreciation adjustments and the tax effects of the foregoing adjustments. In our first quarter of fiscal 2020, we will begin reporting non-GAAP net income under a new definition that excludes the foregoing adjustments, as well as the impact of stock-based compensation.

A reconciliation of our guidance for non-GAAP net income per diluted share for the following quarter is not available due to fluctuations in the geographic mix of our earnings from quarter to quarter, which impacts our tax rate and cannot be reasonably predicted or determined. As a result, such reconciliation is not available without unreasonable efforts and we are unable to determine the probable significance of the unavailable information.

Safe Harbor Statement

The foregoing information contains, or may be deemed to contain, "forward-looking statements" (as defined in the US Private Securities Litigation Reform Act of 1995) which reflect our current views with respect to future events and financial performance. We use words such as "anticipates," “projection,” “outlook,” “forecast,” "believes," "plan," "expect," "future," "intends," "may," "will," "estimates," “see,” "predicts," and similar expressions to identify these forward-looking statements. Forward looking statements included in this press release include our expectations about the semiconductor capital equipment market and outlook. All forward-looking statements address matters that involve risks and uncertainties. Accordingly, the Company’s actual results may differ materially from the results predicted or implied by these forward-looking statements. These risks, uncertainties and other factors also include, among others, those identified in "Risk Factors,” "Management's Discussion and Analysis of Financial Condition and Results of Operations'' and elsewhere in our annual report on Form 10-K for the year ended December 28, 2018 as filed with the Securities and Exchange Commission and subsequently filed quarterly reports on Form 10-Q. Ultra Clean Holdings, Inc. undertakes no obligation to publicly update or review any forward-looking statements, whether as a result of new information, future developments or otherwise unless required by law.

Contact:

Rhonda Bennetto, Vice President Investor Relations

[email protected]

ULTRA CLEAN HOLDINGS, INC.

CONDENSED CONSOLIDATED STATEMENTSOF OPERATIONS

(Unaudited; in thousands, exceptper share data)

Three months ended Twelve months ended
December 27, December 28, December 27, December 28,
2019 2018 2019 2018
Revenues $ 286,413 $ 257,389 $ 1,066,244 $ 1,096,523
Cost of goods sold 230,017 211,412 869,378 920,682
Gross profit 56,396 45,977 196,866 175,841
Operating expenses:
Research and development 3,632 4,059 14,618 13,287
Sales and marketing 5,755 5,032 22,393 16,306
General and administrative 42,505 26,676 129,942 85,544
Total operating expenses 51,892 35,767 166,953 115,137
Income from operations 4,504 10,210 29,913 60,704
Interest and other income (expense), net (12,300 ) (5,187 ) (27,501 ) (8,436 )
Income (loss) before provision for income taxes (7,796 ) 5,023 2,412 52,268
Income tax provision 1,811 5,335 10,031 15,319
Net income (loss) (9,607 ) (312 ) (7,619 ) 36,949
Net income (loss) attributable to non-controlling interest 660 796 1,732 353
Net income (loss) attributable to Ultra Clean Holdings, Inc. $ (10,267 ) $ (1,108 ) $ (9,351 ) $ 36,596
Net income (loss) per share attributable to Ultra Clean Holdings, Inc. common stockholders:
Basic $ (0.26 ) $ (0.03 ) $ (0.24 ) $ 0.95
Diluted $ (0.26 ) $ (0.03 ) $ (0.24 ) $ 0.94
Shares used in computing net income (loss) per share:
Basic 39,778 39,009 39,467 38,366
Diluted 39,778 39,009 39,467 38,919

ULTRA CLEAN HOLDINGS, INC.

CONDENSED CONSOLIDATED BALANCESHEETS

(Unaudited; in thousands)

December 27,<br> <br><br> <br>2019 December 28,<br> <br><br> <br>2018
ASSETS
Current assets:
Cash and cash equivalents $ 162,531 $ 144,145
Accounts receivable, net of allowance 112,694 106,956
Inventories 172,420 186,116
Prepaid expenses and other 19,400 25,708
Total current assets 467,045 462,925
Property, plant and equipment, net 145,272 143,459
Goodwill 171,087 150,226
Purchased intangibles, net 180,318 193,507
Deferred tax assets, net 15,498 10,167
Operating lease right-of-use assets 34,877
Other non-current assets 5,209 5,193
Total assets $ 1,019,306 $ 965,477
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Bank borrowings $ 8,842 $ 9,671
Accounts payable 133,058 99,011
Operating lease liabilities 13,179
Other current liabilities 55,519 30,616
Total current liabilities 210,598 139,298
Bank borrowings, net of current portion 283,390 331,549
Deferred tax liability 25,183 15,834
Operating lease liabilities 28,828
Other long-term liabilities 18,800 27,808
Total liabilities 566,799 514,489
Stockholders’ equity:
Common stock 297,693 287,127
Retained earnings 140,367 149,718
Accumulated other comprehensive loss (1,334 ) (547 )
Ultra Clean Holdings, Inc. stockholders' equity 436,726 436,298
Noncontrolling interest 15,781 14,690
Total stockholders’ equity 452,507 450,988
Total liabilities and stockholders’ equity $ 1,019,306 $ 965,477

ULTRA CLEAN HOLDINGS, INC.

CONDENSED CONSOLIDATED STATEMENTSOF CASH FLOWS

(unaudited; in thousands)

Fiscal Year Ended
December 27, December 28,
2019 2018
Cash flows from operating activities:
Net income (loss) including noncontrolling interests $ (7,619 ) $ 36,949
Adjustments to reconcile net income (loss) to net cash provided by operating activities (excluding assets acquired and liabilities assumed and noncontrolling interests at acquisition):
Depreciation and amortization 43,360 21,907
Stock-based compensation 12,065 10,272
Others 4,763 692
Changes in assets and liabilities:
Accounts receivable (4,488 ) 7,237
Inventories 22,292 50,151
Prepaid expenses and other 3,747 2,614
Deferred income taxes (3,563 ) (82 )
Other non-current assets 12 (353 )
Accounts payable 31,017 (83,195 )
Accrued compensation and related benefits 9,006 (2,795 )
Change in operating leases 7,130
Income taxes payable (2,906 ) 798
Other liabilities 6,153 (2,486 )
Net cash provided by operating activities 120,969 41,709
Cash flows from investing activities:
Purchases of property, plant and equipment (26,312 ) (26,152 )
Acquisition of businesses, net of cash acquired (29,873 ) (319,781 )
Proceeds from sale of equipment, including insurance proceeds 7,002
Net cash used for investing activities (49,183 ) (345,933 )
Cash flows from financing activities:
Proceeds from bank borrowings 41,847 387,054
Proceeds from issuance of common stock 342 94,614
Payments on bank borrowings and finance leases (93,065 ) (86,354 )
Debt issuance costs paid (12,144 )
Employees’ taxes paid upon vesting of restricted stock units (1,841 ) (3,095 )
Others (641 )
Net cash provided by (used for) financing activities (53,358 ) 380,075
Effect of exchange rate changes on cash and cash equivalents (42 ) (12 )
Net increase in cash and cash equivalents $ 18,386 $ 75,839
Cash and cash equivalents at beginning of period 144,145 68,306
Cash and cash equivalents at end of period $ 162,531 $ 144,145

ULTRA CLEAN HOLDINGS, INC.

REPORTABLE SEGMENTS

GAAP TO NON-GAAP RECONCILIATION

(Unaudited; Dollars in thousands)

GAAP Non-GAAP
Three months ended Three months ended
December<br> 27, 2019 December<br> 27, 2019
SPS SSB Consolidated SPS SSB Consolidated
Revenues $ 230,206 $ 56,207 $ 286,413 $ 230,206 $ 56,207 $ 286,413
Gross profit $ 36,885 $ 19,511 $ 56,396 $ 36,906 $ 20,534 $ 57,440
Gross margin 16.0 % 34.7 % 19.7 % 16.0 % 36.5 % 20.1 %
Operating profit $ 272 $ 4,232 $ 4,504 $ 15,150 $ 8,056 $ 23,206
Operating margin 0.1 % 7.5 % 1.6 % 6.6 % 14.3 % 8.1 %
Three months ended
--- --- --- --- --- --- --- --- --- ---
December 27, 2019
SPS SSB Consolidated
Reconciliation of GAAP Gross profit to Non-GAAP Gross profit (in thousands)
Reported gross profit on a GAAP basis $ 36,885 $ 19,511 $ 56,396
Amortization of intangible assets (1) - 1,023 1,023
Restructuring charges (2) 21 - 21
Non-GAAP gross profit $ 36,906 $ 20,534 $ 57,440
Reconciliation of GAAP Gross margin to Non-GAAP Gross margin
Reported gross margin on a GAAP basis 16.0 % 34.7 % 19.7 %
Amortization of intangible assets (1) 0.0 % 1.8 % 0.4 %
Restructuring charges (2) 0.0 % - 0.0 %
Non-GAAP gross margin 16.0 % 36.5 % 20.1 %
Reconciliation of GAAP Income from operations to Non-GAAP Income from operations (in thousands)
Reported income from operations on a GAAP basis $ 272 $ 4,232 $ 4,504
Amortization of intangible assets (1) 1,267 3,824 5,091
Restructuring charges (2) 13,500 - 13,500
Acquisition related costs (3) 111 - 111
Non-GAAP income from operations $ 15,150 $ 8,056 $ 23,206
Reconciliation of GAAP Operating margin to Non-GAAP Operating margin
Reported operating margin on a GAAP basis 0.1 % 7.5 % 1.6 %
Amortization of intangible assets (1) 0.6 % 6.8 % 1.8 %
Restructuring charges (2) 5.9 % 0.0 % 4.7 %
Acquisition related costs (3) 0.0 % 0.0 % 0.0 %
Non-GAAP operating margin 6.6 % 14.3 % 8.1 %
1 Amortization of intangible assets related to the Company's<br>acquisitions of AIT, Thermal, FDS, QGT and DMS
--- ---
2 Represents severance costs and costs related to facility<br>closures
--- ---
3 Represents costs related to the QGT and DMS acquisitions
--- ---

ULTRA CLEAN HOLDINGS, INC.

UNAUDITED RECONCILIATION OF GAAP TO NON-GAAPADJUSTED RESULTS

Three Months Ended Twelve Months Ended
December 27, December 28, September 27, December 27, December 28,
2019 2018 2019 2019 2018
Reconciliation of GAAP Net Income (loss) to Non-GAAP Net Income (in thousands)
Reported net income (loss) attributable to Ultra Clean Holdings, Inc. on a GAAP basis $ (10,267 ) $ (1,108 ) $ 513 $ (9,351 ) $ 36,596
Amortization of intangible assets (1) 5,091 4,973 5,093 20,090 9,580
Restructuring charges (2) 13,500 832 1,393 16,615 4,821
Acquisition related costs (3) 111 613 200 3,861 10,102
Fair value adjustments (4) 6,562 - 129 7,457 -
Depreciation adjustments (5) - - - (360 ) -
Product transition fees (6) - - - - 657
Disposal of business unit (7) 52 - - 52 1,082
Income tax effect of non-GAAP adjustments (8) (5,266 ) (1,101 ) (1,567 ) (11,261 ) (4,501 )
Income tax effect of valuation allowance (9) 3,440 4,474 2,781 9,461 6,355
Non-GAAP net income attributable to Ultra Clean Holdings, Inc. $ 13,223 $ 8,683 $ 8,542 $ 36,564 $ 64,692
Reconciliation of GAAP Income from operations to Non-GAAP Income from operations (in thousands)
Reported income from operations on a GAAP basis $ 4,504 $ 10,210 $ 8,258 $ 29,913 $ 60,704
Amortization of intangible assets (1) 5,091 4,973 5,093 20,090 9,580
Restructuring charges (2) 13,500 832 954 15,821 4,821
Acquisition related costs (3) 111 613 200 3,863 10,003
Fair value adjustments (4) - - 129 895 -
Depreciation adjustments (5) - - - (360 ) -
Product transition fees (6) - - - - 657
Non-GAAP income from operations $ 23,206 $ 16,628 $ 14,634 $ 70,222 $ 85,765
Reconciliation of GAAP Operating margin to Non-GAAP Operating margin
Reported operating margin on a GAAP basis 1.6 % 4.0 % 3.2 % 2.8 % 5.5 %
Amortization of intangible assets (1) 1.8 % 1.9 % 2.0 % 1.8 % 0.9 %
Restructuring charges (2) 4.7 % 0.3 % 0.4 % 1.5 % 0.4 %
Acquisition related costs (3) 0.0 % 0.3 % 0.1 % 0.4 % 0.9 %
Fair value adjustments (4) 0.0 % 0.0 % 0.1 % 0.1 % 0.0 %
Depreciation adjustments (5) 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
Product transition fees (6) 0.0 % 0.0 % 0.0 % 0.0 % 0.1 %
Non-GAAP operating margin 8.1 % 6.5 % 5.8 % 6.6 % 7.8 %
Reconciliation of GAAP Gross profit to Non-GAAP Gross profit (in thousands)
Reported gross profit on a GAAP basis $ 56,396 $ 45,977 $ 47,504 $ 196,866 $ 175,841
Amortization of intangible assets (1) 1,023 1,363 1,023 4,090 1,363
Restructuring charges (2) 21 715 154 1,041 2,849
Fair value adjustments (4) - - 129 895 -
Depreciation adjustments (5) - - - (316 )
Product transition fees (6) - - - - 657
Non-GAAP gross profit $ 57,440 $ 48,055 $ 48,810 $ 202,576 $ 180,710
Reconciliation of GAAP Gross margin to Non-GAAP Gross margin
Reported gross margin on a GAAP basis 19.7 % 17.9 % 18.7 % 18.5 % 16.0 %
Amortization of intangible assets (1) 0.4 % 0.5 % 0.4 % 0.4 % 0.1 %
Restructuring charges (2) 0.0 % 0.3 % 0.1 % 0.1 % 0.3 %
Fair value adjustments (4) 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
Depreciation adjustments (5) 0.0 % 0.0 % 0.0 % 0.0 % 0.0 %
Product transition fees (6) 0.0 % 0.0 % 0.0 % 0.0 % 0.1 %
Non-GAAP gross margin 20.1 % 18.7 % 19.2 % 19.0 % 16.5 %
Reconciliation of GAAP Interest and other income (expense) to Non-GAAP Interest and other income (expense) (in thousands)
Reported interest and other income (expense) on a GAAP basis $ (12,300 ) $ (5,187 ) $ (3,492 ) $ (27,501 ) $ (8,436 )
Restructuring charges (2) - - 439 795 1,082
Acquisition related costs (3) - - - - 99
Fair value adjustments (4) 6,562 - - 6,562 -
Disposal of business unit (7) 52 - - 52 -
Non-GAAP interest and other income (expense) $ (5,686 ) $ (5,187 ) $ (3,053 ) $ (20,092 ) $ (7,255 )
1 Amortization of intangible assets related to the Company's<br>acquisitions of AIT, Thermal, FDS, QGT and DMS
--- ---
2 Represents severance costs and costs related to facility<br>closures
--- ---
3 Represents costs related to the QGT and DMS acquisitions
--- ---
4 Fair value adjustments related to DMS inventory, contingent<br>consideration and purchase obligation
--- ---
5 Depreciation adjustments related to QGT's fixed assets
--- ---
6 One-time product transition payment
--- ---
7 Represents the loss on disposal of the Company's 3D printing<br>operations in Singapore
--- ---
8 Tax effect of items (1) through (7) above based on the<br>non-GAAP tax rate shown below
--- ---
9 The Company's GAAP tax expense is generally higher than<br>the Company's non-GAAP tax expense, primarily due to losses in the U.S. with full federal and state valuation allowances. The<br>Company's non-GAAP tax rate and resulting non-GAAP tax expense considers the tax implications as if there was no federal or state<br>valuation allowance position in effect.
--- ---
Three Months Ended Twelve Months Ended
--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---
December 27, December 28, September 27, December 27, December 28,
2019 2018 2019 2019 2018
Reconciliation of GAAP Earnings Per Diluted Share to Non-GAAP Earnings Per Diluted Share
Reported net income (loss) on a GAAP basis $ (0.26 ) $ (0.03 ) $ 0.01 $ (0.24 ) $ 0.94
Amortization of intangible assets 0.13 0.13 0.13 0.50 0.25
Restructuring charges 0.33 0.02 0.03 0.42 0.12
Acquisition related costs 0.01 0.02 0.01 0.10 0.26
Fair value adjustments 0.16 - - 0.19 -
Depreciation adjustments - - - (0.01 ) -
Product transition fees - - - - 0.02
Disposal of business unit 0.01 - - - 0.03
Income tax effect of non-GAAP adjustments (0.13 ) (0.03 ) (0.04 ) (0.28 ) (0.12 )
Income tax effect of valuation allowance 0.08 0.12 0.07 0.23 0.16
Non-GAAP net income $ 0.33 $ 0.23 $ 0.21 $ 0.91 $ 1.66
Weighted average number of diluted shares (thousands) on a non-GAAP basis 40,523 39,009 39,734 40,027 38,919

ULTRA CLEAN HOLDINGS, INC.

UNAUDITED RECONCILIATION OF GAAP TO NON-GAAPEFFECTIVE INCOME TAX RATE

Three Months Ended Twelve Months Ended
December 27, December 28, September 27, December 27, December 28,
2019 2018 2019 2019 2018
(in thousands, except percentages)
Provision for income taxes on a GAAP basis $ 1,811 $ 5,335 $ 3,878 $ 10,031 $ 15,319
Income tax effect of non-GAAP adjustments (1) 5,266 1,101 1,567 11,261 4,501
Income tax effect of valuation allowance (2) (3,440 ) (4,474 ) (2,781 ) (9,461 ) (6,355 )
Non-GAAP provision for income taxes $ 3,637 $ 1,962 $ 2,664 $ 11,831 $ 13,465
Income (loss) before income taxes on a GAAP basis $ (7,796 ) $ 5,023 $ 4,766 $ 2,412 $ 52,268
Amortization of intangible assets 5,091 4,973 5,093 20,090 9,580
Restructuring charges 13,500 832 1,393 16,615 4,821
Acquisition related costs 111 613 200 3,861 10,102
Fair value adjustments 6,562 - 129 7,457 -
Depreciation adjustments - - - (360 ) -
Product transition fees - - - - 657
Disposal of business unit 52 - - 52 1,082
Non-GAAP income before income taxes $ 17,520 $ 11,441 $ 11,581 $ 50,127 $ 78,510
Effective income tax rate on a GAAP basis -23.2 % 106.2 % 81.4 % 415.9 % 29.3 %
Non-GAAP effective income tax rate 20.8 % 17.2 % 23.0 % 23.6 % 17.2 %
1 Tax effect of items (1) through (7) above based on the<br>non-GAAP tax rate
--- ---
2 The Company's GAAP tax expense is generally higher than<br>the Company's non-GAAP tax expense, primarily due to losses in the U.S. with full federal and state valuation allowances. The<br>Company's non-GAAP tax rate and resulting non-GAAP tax expense considers the tax implications as if there was no federal or state<br>valuation allowance position in effect.
--- ---