SEC Form SC 13G/A filed by PDF Solutions Inc. (Amendment)

2/14/22 2:34:30 PM ET

Computer Software: Prepackaged Software

Technology

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SC 13G/A 1 pdfs13gadec21.txt UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 18) PDF SOLUTIONS INC (Name of Issuer) COMMON STOCK (Title of Class of Securities) 693282105 (CUSIP NUMBER) December 31, 2021 (Date of Event which Requires Filing of Statement) Check the appropriate box to designate the Rule pursuant to which this Schedule is filed: [x] Rule 13d - 1(b) Rule 13d - 1(c) Rule 13d - 1(d) 1. Name of Reporting Person T. ROWE PRICE ASSOCIATES, INC. 52-0556948 2. Check the Appropriate Box if a Member of a Group NOT APPLICABLE 3. SEC Use Only 4. Citizenship or Place of Organization Maryland Number of Shares Beneficially Owned by Each Reporting Person With 5. Sole Voting Power* 1,990 6. Shared Voting Power* 0 7. Sole Dispositive Power* 1,990 8. Shared Dispositive Power 0 9. Aggregate Amount Beneficially Owned by Each Reporting Person 1,990 10. Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares NOT APPLICABLE 11. Percent of Class Represented by Amount in Row 9 0.0% 12. Type of Reporting Person IA *Any shares reported in Items 5 and 6 are also reported in Item 7. Item 1(a) Name of Issuer: PDF SOLUTIONS INC Item 1(b) Address of Issuer's Principal Executive Offices: 2858 DE LA CRUZ BOULEVARD, SANTA CLARA, CALIFORNIA 95050 Item 2(a) Name of Person(s) Filing: (1) T. ROWE PRICE ASSOCIATES, INC. ("Price Associates") Item 2(b) Address of Principal Business Office: 100 E. Pratt Street, Baltimore, MD 21202 Item 2(c) Citizenship or Place of Organization: (1) Maryland Item 2(d) Title of Class of Securities: COMMON STOCK Item 2(e) Cusip Number: 693282105 Item 3: The person filing this Schedule 13G is an: X Investment Adviser registered under Section 203 of the Investment Advisers Act of 1940 Item 4: Reference is made to Items 5-11 on the preceding pages of this Schedule 13G. Item 5: Ownership of Five Percent or Less of a Class This statement is being filed to report the fact that, as of the date of this report, the reporting person(s) has (have) ceased to be the beneficial owner of more than five percent of the class of securities. Item 6: Ownership of More than Five Percent on Behalf of Another Person (1) Price Associates does not serve as custodian of the assets of any of its clients; accordingly, in each instance only the client or the client's custodian or trustee bank has the right to receive dividends paid with respect to, and proceeds from the sale of, such securities. The ultimate power to direct the receipt of dividends paid with respect to, and the proceeds from the sale of, such securities, is vested in the individual and institutional clients which Price Associates serves as investment adviser. Any and all discretionary authority which has been delegated to Price Associates may be revoked in whole or in part at any time. Except as may be indicated if this is a joint filing with one of the registered investment companies sponsored by Price Associates which it also serves as investment adviser ("T. Rowe Price Funds"), not more than 5% of the class of such securities is owned by any one client subject to the investment advice of Price Associates. (2) With respect to securities owned by any one of the T. Rowe Price Funds, only the custodian for each of such Funds, has the right to receive dividends paid with respect to, and proceeds from the sale of, such securities. No other person is known to have such right, except that the shareholders of each such Fund participate proportionately in any dividends and distributions so paid. Item 7: Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company. Not Applicable Item 8: Identification and Classification of Members of the Group Not Applicable Item 9: Notice of Dissolution of Group Not Applicable Item 10: Certification By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect. T. Rowe Price Associates, Inc. hereby declares and affirms that the filing of Schedule 13G shall not be construed as an admission that Price Associates is the beneficial owner of the securities referred to, which beneficial ownership is expressly denied. Signature. After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. T. ROWE PRICE ASSOCIATES, INC. Date: February 14, 2022 Signature: /s/ David Oestreicher Name & Title: David Oestreicher, Executive Vice President 12/31/2021

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Date

Price Target

Rating

Analyst

8/8/2025

$24.00

Neutral

DA Davidson

2/16/2022

$29.00 → $33.00

Buy

Rosenblatt

9/17/2021

$23.00

Buy

Rosenblatt

8/11/2021

$22.00 → $23.00

Buy

Rosenblatt

SEC Form SC 13G/A filed by PDF Solutions Inc. (Amendment)

2/14/22 2:34:30 PM ET

$PDFS

Computer Software: Prepackaged Software

Technology

Get the next $PDFS alert in real time by email

Date

Price Target

Rating

Analyst

8/8/2025

$24.00

Neutral

DA Davidson

2/16/2022

$29.00 → $33.00

Buy

Rosenblatt

9/17/2021

$23.00

Buy

Rosenblatt

8/11/2021

$22.00 → $23.00

Buy

Rosenblatt

SEC Form SC 13G/A filed by PDF Solutions Inc. (Amendment)

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Recent Analyst Ratings for
$PDFS

SEC Form SC 13G/A filed by PDF Solutions Inc. (Amendment)

Crush Q1 2026 with the Best AI Superconnector

Recent Analyst Ratings for
$PDFS

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SEC Filings

PDF Solutions Inc. filed SEC Form 8-K: Regulation FD Disclosure

SEC Form 10-Q filed by PDF Solutions Inc.

PDF Solutions Inc. filed SEC Form 8-K: Results of Operations and Financial Condition, Financial Statements and Exhibits

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Analyst Ratings

DA Davidson resumed coverage on PDF Solutions with a new price target

Rosenblatt reiterated coverage on PDF Solutions with a new price target

Rosenblatt resumed coverage on PDF Solutions with a new price target

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Insider Purchases

Director Gustafson Michael B bought $145,875 worth of shares (7,500 units at $19.45), increasing direct ownership by 33% to 30,074 units (SEC Form 4)

Director Gustafson Michael B bought $92,240 worth of shares (4,000 units at $23.06), increasing direct ownership by 22% to 22,574 units (SEC Form 4)

PRESIDENT AND CEO Kibarian John Kachig bought $1,129,206 worth of shares (50,000 units at $22.58) (SEC Form 4)

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Insider Trading

EVP of Products and Solutions Michaels Kimon gifted 5,070 shares (SEC Form 4)

EVP, Finance and CFO Raza Adnan was granted 35,000 shares, increasing direct ownership by 84% to 76,508 units (SEC Form 4)

Chief Technology Officer Strojwas Andrzej was granted 8,000 shares, increasing direct ownership by 10% to 91,966 units (SEC Form 4)

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Press Releases

Long-time PDF Solutions® Customer, DENSO, Acknowledges Contribution of Exensio® Software for its IGBT Manufacturing

PDF Solutions® to Make Its Analyst Day Webcast and Presentation Available

PDF Solutions Announces Speakers and Agenda for its Users Conference and Analyst Day

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Financials

PDF Solutions® to Make Its Analyst Day Webcast and Presentation Available

PDF Solutions® Reports Third Quarter 2025 Financial Results, Announcing Record Third Quarter 2025 Total Revenues

PDF Solutions to Report Third Quarter Fiscal 2025 Financial Results on November 6, 2025

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Large Ownership Changes