Anchor Bancorp (NASDAQ:ANCB) Files An 8-K Other Events

Anchor Bancorp (NASDAQ:ANCB) Files An 8-K Other EventsItem 8.01 Other Events

Settlement of Certain Litigation Relating to the Merger

On or about October 23, 2018, a purported individual shareholder of Anchor Bancorp ("Anchor") filed a lawsuit in the Superior Court for the State of Washington in Thurston County (the "Court"), under the caption Parshall v. Anchor Bancorp, et. al., Case No. 18-2-05365-34 (the "Action"). The complaint, which was filed as a putative class action on behalf of the individual plaintiff and the public shareholders of Anchor, alleges that the proxy statement/prospectus (the "Proxy Statement/Prospectus") forming a part of the Form S-4 Registration Statement filed by FS Bancorp, Inc. ("FS Bancorp") in connection with the proposed merger of Anchor with FS Bancorp does not contain certain information alleged to be material to the Anchor shareholders concerning the proposed merger. The complaint asserts claims against Anchor's directors for breach of fiduciary duty, and against Anchor and FS Bancorp for aiding and abetting the alleged breach of fiduciary duty, for distributing the Proxy Statement/Prospectus with allegedly false or misleading statements or omissions. The complaint seeks, among other things, injunctive relief against consummation of the merger and additional, allegedly corrective disclosures as well as attorneys' and expert fees.

Solely to avoid the costs, risks, nuisance and uncertainties inherent in litigation and to allow the Anchor shareholders to vote on the proposals required in connection with the proposed merger with FS Bancorp at the Anchor special meeting of shareholders to be held on November 13, 2018 (the "Special Meeting"), Anchor hereby supplements the disclosures contained in the Proxy Statement/Prospectus (the "Additional Disclosures"). The Additional Disclosures are set forth below and should be read in conjunction with the Proxy Statement/Prospectus.

In light of the Additional Disclosures, plaintiff has agreed to dismiss the Action with prejudice as to his individual claims and without prejudice to the claims of the members of the putative class. In dismissing the Action, plaintiff has reserved the right to seek an award of attorneys' fees from the Court.

The agreement to make the Additional Disclosures will not affect the merger consideration to be paid to Anchor's shareholders or the timing of the Special Meeting.

Anchor and the other defendants, including FS Bancorp, vigorously deny that the Proxy Statement/Prospectus is deficient in any respect and that the Additional Disclosures are material or required. Anchor and FS Bancorp believe that the claims asserted in the Action are without merit, and that the Additional Disclosures do not provide information required by the federal securities laws or that is material to the decision of the Anchor shareholders as to how to vote their shares at the Special Meeting. As noted above, the Additional Disclosures are being made solely to eliminate the burden, expense, and nuisance of further litigation, and to avoid any possible delay to the closing of the merger that might arise from further litigation. Nothing in this document shall be deemed an admission of the legal necessity or materiality under any applicable laws for any of the disclosures set forth herein.

SUPPLEMENT TO PROXY STATEMENT/PROSPECTUS

The following information supplements the Proxy Statement/Prospectus and should be read in connection with the Proxy Statement/Prospectus, which should be read in its entirety. To the extent that information herein differs from or updates information contained in the Proxy Statement/Prospectus, the information contained herein supersedes the information contained in the Proxy Statement/Prospectus. All page references in the information below are to pages in the Proxy Statement/Prospectus, and terms used below have the meanings set forth in the Proxy Statement/Prospectus, unless otherwise defined below. Without admitting in any way that the disclosures below are material or otherwise required by law, Anchor and FS Bancorp make the following Additional Disclosures:

The following disclosure supplements the subsection captioned "Anchor Selected Companies Analysis" beginning on page 46 of the Proxy Statement/Prospectus.

The following disclosure is added after the second sentences of the first paragraphs in the subsections captioned "Anchor Discounted Cash Flow Analysis" and "FS Bancorp Discounted Cash Flow Analysis" beginning on page 51 of the Proxy Statement/Prospectus.

The following disclosure appears in a new section captioned "Certain Prospective Financial Information" on page 52 of the Proxy Statement/Prospectus prior to the section captioned "Reasons of FS Bancorp for the Merger."

Certain Prospective Financial Information

FS Bancorp provided Anchor and its financial advisor with the projected earnings data for each of the following years as set forth in the table below.

2018 $4.81 per share, per FactSet consensus estimates

2019 $5.23 per share, per FactSet consensus estimates

For the year after 2019, FS Bancorp provided an estimated long term growth rate for FS Bancorp of 8% of annual earnings growth. FS Bancorp also provided an estimated 8.4% annualized asset growth rate until December 31, 2018, per FactSet consensus estimates, and an estimated 8.0% annual asset growth rate thereafter. These projections and estimates were as of July 17, 2018 and have not been updated for subsequent actual results or any forecast revisions or other changes in circumstances or events occurring after such dates. In the discounted cash flow analysis of FS Bancorp performed by KBW in connection with its opinion, estimated excess cash flows that FS Bancorp could generate over the period from December 31, 2018 to December 31, 2023 as a stand-alone company were derived from the estimated EPS and asset data for FS Bancorp described in this paragraph, calculated generally as any portion of estimated earnings in excess of an amount assumed to be retained by FS Bancorp to maintain the assumed tangible common equity to tangible assets ratio.

Anchor provided KBW with projected earnings data for each of the following years as set forth in the table below:

2018 $2.14 per share, per publicly available research analyst street estimate

2019 $2.25 per share, per Anchor management estimates

For the year after 2019, Anchor provided an estimated long term growth rate for Anchor of 5% of annual earnings growth. Anchor also provided an estimated 5.0% annual asset growth rate. These projections and estimates were as of July 17, 2018 and have not been updated for subsequent actual results or any forecast revisions or other changes in

circumstances or events occurring after such dates. In the discounted cash flow analysis of Anchor performed by KBW in connection with its opinion, estimated excess cash flows that Anchor could generate over the period from December 31, 2018 to December 31, 2023 as a stand-alone company were derived from the estimated EPS and asset data for Anchor described in this paragraph, calculated generally as any portion of estimated earnings in excess of an amount assumed to be retained by Anchor to maintain the assumed tangible common equity to tangible assets ratio.

For the pro forma merger analysis, FS Bancorp provided the following assumptions to Anchor and its financial advisor:

Purchase Accounting Adjustment Assumptions:

Cost Savings Assumptions:

Cost savings estimated at 35.0% of ANCB G&A expenses

After-tax restructuring charge of approximately $5.9 million ($7.3 million pre-tax)

The disclosure under the heading "THE MERGER—Background of the Merger" is hereby supplemented by adding the following sentence at the end of the third paragraph on page31 of the Proxy Statement/Prospectus:

IMPORTANT ADDITIONAL INFORMATION AND WHERE TO FIND IT

In connection with the proposed merger, FS Bancorp has filed with the Securities and Exchange Commission ("SEC") a Registration Statement on FormS-4 that includes the preliminary Proxy Statement of Anchor and a preliminary Prospectus of FS Bancorp. The registration statement, as amended, was declared effective by the SEC on September 26, 2018. Anchor commenced the mailing of the definitive Proxy Statement/Prospectus to its shareholders on or about October 4, 2018. This document does not constitute an offer to sell or the solicitation of an offer to buy any securities or a solicitation of any vote or approval. INVESTORS AND SHAREHOLDERS ARE URGED TO READ THE DEFINITIVE PROXY STATEMENT/PROSPECTUS, AS SUPPLEMENTED HEREBY, AND ANY OTHER RELEVANT DOCUMENTS FILED WITH THE SEC, AS WELL AS ANY AMENDMENTS OR SUPPLEMENTS TO THOSE DOCUMENTS, BECAUSE THEY CONTAIN OR WILL CONTAIN IMPORTANT INFORMATION.

A free copy of the definitive Proxy Statement/Prospectus as well as other filings containing information about FS Bancorp and Anchor may be obtained at the SEC's Internet site (http://www.sec.gov).

FS Bancorp's filings are available on its website, www.fsbwa.com. You may also request a copy of these filings, at no cost, by writing or telephoning FS Bancorp at:

FS Bancorp, Inc.

6920 220th Street SW

Mountlake Terrace, Washington 98043

Attn: Investor Relations

(425) 771-5299

Anchor's filings are available on its website, www.anchornetbank.com. You may also request a copy of these filings, at no cost, by writing or telephoning Anchor at:

Anchor Bancorp

601 Woodland Square Loop SE

Lacey, Washington 98503

Attn: Investor Relations

(360) 491-2250

FS Bancorp and Anchor and certain of their respective directors and executive officers may be deemed to be participants in the solicitation of proxies from the shareholders of Anchor in respect of the transaction described in the definitive Proxy Statement/Prospectus. Information regarding FS Bancorp's directors and executive officers is contained in FS Bancorp's Annual Report on Form10-K for the year ended December31, 2017 and its Proxy Statement on Schedule 14A, filed with the SEC on March 28, 2018. Information regarding Anchor's directors and executive officers is contained in its Proxy Statement on Schedule 14A filed with the SEC on November 9, 2017. Additional information regarding the interests of those participants and other persons who may be deemed participants in the transaction may be obtained by reading the definitive Proxy

Statement/Prospectus. Free copies of this document may be obtained as described in the preceding paragraph.

FORWARD-LOOKING STATEMENTS

This document contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 including, but not limited to, FS Bancorp's and Anchor's expectations or predictions of future financial or business performance or conditions. Forward-looking statements are typically identified by words such as "believe," "expect," "anticipate," "intend," "target," "estimate," "continue," "positions," "plan," "predict," "project," "forecast," "guidance," "goal," "objective," "prospects," "possible" or "potential," by future conditional verbs such as "assume," "will," "would," "should," "could" or "may", or by variations of such words or by similar expressions. These forward-looking statements are subject to numerous assumptions, risks and uncertainties, which change over time. Forward-looking statements speak only as of the date they are made and we assume no duty to update forward-looking statements. Actual results may differ materially from current projections.

In addition to factors previously disclosed in FS Bancorp's and Anchor's reports filed with or furnished to the SEC and those identified elsewhere in this document, the following factors, among others, could cause actual results to differ materially from forward-looking statements or historical performance: the ability to obtain regulatory approvals and meet other closing conditions to the merger, including approval of the merger by Anchor's shareholders on the expected terms and schedule, including the risk that regulatory approvals required for the merger are not obtained or are obtained subject to conditions that are not anticipated; delay in closing the merger; difficulties and delays in integrating the businesses of Anchor or fully realizing cost savings and other benefits; business disruption following the merger; changes in asset quality and credit risk; the inability to sustain revenue and earnings growth; changes in interest rates and capital markets; inflation; customer acceptance of FS Bancorp's products and services; customer borrowing, repayment, investment and deposit practices; customer disintermediation; the introduction, withdrawal, success and timing of business initiatives; competitive conditions; the inability to realize cost savings or revenues or to implement integration plans and other consequences associated with mergers, acquisitions and divestitures; economic conditions; and the impact, extent and timing of technological changes, capital management activities, and other actions of the Federal Reserve Board and legislative and regulatory actions and reforms.

Annualized, pro forma, projected and estimated numbers are used for illustrative purpose only, are not forecasts and may not reflect actual results.

About Anchor Bancorp (NASDAQ:ANCB)
Anchor Bancorp is the bank holding company of Anchor Bank (the Bank). The Bank is a community-based savings bank. As of June 30, 2016, the Bank primarily served Western Washington through its 10 full-service banking offices (including a Wal-Mart in-store location) located within Grays Harbor, Thurston, Lewis, Pierce and Mason counties, and a loan production office located in King County, Washington. It is in the business of attracting deposits from the public and utilizing those deposits to originate loans. The Bank offers a range of loan products. The Bank’s operations include commercial banking services, such as lending activities, deposit products and other cash management services. The Bank offers commercial real estate loans and multi-family loans primarily in Western Washington. The Bank offers various deposit instruments, including checking accounts, money market deposit accounts, savings accounts and certificates of deposit with a range of rates.