ウエスタンデジタルの年次報告

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

(Mark One)


☒			1934年米国証券取引所法第13条または第15条(d)に基づく年次報告書

2023年6月期


☐			1934年米国証券取引所法（securities exchange act of 1934）第13条または第15条（d）に基づく移行報告書

からの移行期間

Commission file number: 1-8703

WESTERN DIGITAL CORPORATION

(チャーターで指定された登録者の正確な名前)

デラウェア

33-0956711

(法人または組織の州またはその他の管轄区域)

(I.R.S. Employer Identification No.)

5601 Great Oaks Parkway

San Jose,

カリフォルニア

95119

(主要経営陣の住所)

(Zip Code)

登録者の電話番号（市外局番を含む）。(408) 717-6000

法第12条(b)項に基づいて登録された証券:


Title of each class	Trading symbol(s)	登録されている各取引所の名称
普通株式、1株当たりの額面0.01ドル	WDC	the nasdaq stock market llc
		(Nasdaq Global Select Market)

法第12条(g)項に基づいて登録された証券:

None

登録者が証券法ルール405で定義される著名なシーズン発行体である場合は、チェックマークで示すこと。はいいいえ

登録者が法第13条または第15条(d)に従って報告書を提出する必要がない場合は、チェックマークで示す。はい ¨ いいえ ý

(1)1934年証券取引法第13条または第15条(d)により提出が義務付けられているすべての報告書を過去12ヶ月間（または登録者が当該報告書の提出を義務付けられていたより短い期間）提出したかどうか、および(2)過去90日間当該提出義務の対象であったかどうかをチェックマークで示す。はいいいえ

登録者が、過去12ヶ月間（または登録者がそのようなファイルを提出する必要があったより短い期間）に、レギュレーションS-Tのルール405（本章§232.405）に従って提出が義務付けられているすべてのインタラクティブ・データ・ファイルを電子的に提出したかどうかをチェックマークで示す。はいいいえ

登録者が大規模加速ファイラー、加速ファイラー、非加速ファイラー、小規模報告企業、新興成長企業のいずれであるかをチェックマークで示す。取引所法の規則12b-2における「大型加速度フィラー」、「加速度フィラー」、「小規模報告企業」、「新興成長企業」の定義を参照のこと。

Large accelerated filer

Accelerated filer

Non-accelerated filer

Smaller reporting company

Emerging growth company

☐

新興成長企業の場合、登録者が取引所法第13条(a)に従い提供される新規または改訂された財務会計基準に準拠するための延長された移行期間を使用しないことを選択した場合は、チェックマークで示す。¨

登録者が、サーベンス・オクスリー法第404条(b)（15 U.S.C. 7262(b)）に基づく財務報告に係る内部統制の有効性に関する経営陣の評価について、その監査報告書を作成または発行した登録会計事務所による報告書および証明書を提出しているかどうかをチェックマークで示す。ý

有価証券が法第12条(b)に従って登録されている場合、提出書類に含まれる登録者の財務諸表が、以前に発行された財務諸表の誤謬の訂正を反映しているかどうかをチェックマークで示す。¨

それらの誤謬訂正のいずれかが、§240.10D-1(b)に従い、関連する回復期間中に登録者の執行役員が受け取ったインセンティブに基づく報酬の回復分析を必要とする修正再表示であるかどうかをチェックマークで示す。

登録者がシェル会社（法規則12b-2で定義）であるかどうかをチェックマークで示す。はい ☐ いいえ ý

2022年12月30日（登録者の直近の第2四半期終了日の最終営業日）における、登録者の非関連会社が保有する登録者の普通株式の時価総額は、ナスダック・グローバル・セレクト・マーケットで報告された終値に基づき、77.3億ドルであった。

2023年8月4日営業終了時点の発行済普通株式数は321,895,961株、額面1株当たり0.01ドル。

Documents Incorporated by Reference

パートIIIは、2023年会計年度終了後120日以内に米国証券取引委員会に提出される予定の、2023年株主総会のための登録者の確定委任状（以下「委任状」）から特定の情報を参照により組み込んだものである。本フォーム10-Kに参考として特に組み込まれる情報を除き、委任状は本書の一部として提出されたものとはみなされません。

WESTERN DIGITAL CORPORATION

INDEX


		PAGE NO.
PART I
Item 1.	事業目的	4
Item 1A.	Risk Factors	11
Item 1B.	Unresolved Staff Comments	26
Item 2.	Properties	27
Item 3.	Legal Proceedings	29
Item 4.	Mine Safety Disclosures	29

PART II
Item 5.	登録機関の普通株式の市場、関連する株主事項および発行者による持分証券の購入	30
Item 6.	[Reserved]	32
Item 7.	財政状態および経営成績に関する経営陣の検討および分析	33
Item 7A.	市場リスクに関する定量的および定性的な情報の開示	48
Item 8.	財務諸表および補足データ	49
Item 9.	会計および財務開示に関する会計士の変更および意見の相違	107
Item 9A.	Controls and Procedures	107
Item 9B.	Other Information	108
Item 9C.	検査を妨げている外国の管轄区域に関する情報開示	108

PART III
Item 10.	取締役、執行役員およびコーポレート・ガバナンス	109
Item 11.	Executive Compensation	109
Item 12.	特定の受益者および経営陣の証券保有状況と関連する株主事項	109
Item 13.	特定の関係および関連取引、ならびに取締役の独立性	109
Item 14.	プリンシパルアカウンタントの報酬とサービス	109

PART IV
Item 15.	添付資料および財務諸表のスケジュール	110
Item 16.	Form 10-K Summary	115

別段の記載がない限り、本書中の特定の年度および四半期に関する記述は当社の会計年度および会計四半期に関するものであり、財務情報に関する記述は連結ベースのものです。本書で使用されている「当社」、「当社グループ」、「当社」、「WDC」、「Western Digital」という用語は、別段の記載がない限り、または文脈上別段の記載がない限り、Western Digital Corporationおよびその子会社を指します。

WDCはデラウェア州法人で、データストレージ事業の親会社です。WDCの主要経営事務所は5601 Great Oaks Parkway, San Jose, California 95119にあります。電話番号は (408) 717-6000 です。

Western Digital、Western Digitalのロゴ、SanDiskおよびWDは、米国およびその他の国におけるWestern Digitalまたはその関連会社の登録商標または商標です。その他すべての商標、登録商標および/またはサービスマークは、表示されているかどうかにかかわらず、各所有者の財産です。