As of November 7, 2026, 3 holders' latest Schedule 13D or 13G filings report owning 5% or more of Sandisk Corp. The largest reported stake is BlackRock, Inc.'s, at 7.7%. 14 filings are on record since July 1, 2025 (Schedule 13G/A, October 27, 2026).
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Key facts
- · Reporting person: Jane Street Group, LLC · Sole voting: 0 · Shared voting: 5,478,633 · Sole dispositive: 0 · Shared dispositive: 5,478,633 · SCHEDULE 13G/A, 2026-11-06
- · Reporting person: BlackRock, Inc. · Sole voting: 10,088,654 · Shared voting: 0 · Sole dispositive: 11,085,551 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-10-27
- · Reporting person: Fmr LLC · Sole voting: 7,436,510 · Shared voting: 0 · Sole dispositive: 7,861,064 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-08-06
- · Holder: Jane Street Group, LLC · Percent: 5% · SCHEDULE 13G
- · Reporting person: Western Digital Corporation · Sole voting: 0 · Shared voting: 0 · Sole dispositive: 1,038,681 · Shared dispositive: 0 · SCHEDULE 13G/A, 2026-05-15
Sandisk Corp has 14 Schedule 13D or 13G filings on record since 2025-07-01. 3 holders' latest filing reports 5% or more of common stock, $0.01 par value per share. Each figure below is the holder's own, as filed, with the filing linked.
Holders
| Holder | Percent | Shares | Latest | Event date |
|---|---|---|---|---|
| BlackRock, Inc. | 7.7% | 11,085,551 | SCHEDULE 13G/A, 2026-10-27 | 2026-09-30 |
| Vanguard Capital Management | 7.17% | 11,000,476 | SCHEDULE 13G, 2026-04-30 | 2026-03-31 |
| Fmr LLC | 5.3% | 7,861,064 | SCHEDULE 13G/A, 2026-08-06 | 2026-06-30 |
| Jane Street Group, LLC | 3.7% | 5,478,633 | SCHEDULE 13G/A, 2026-11-06 | 2026-09-30 |
| Western Digital Corporation | 0.7% | 1,038,681 | SCHEDULE 13G/A, 2026-05-15 | 2026-03-31 |
| DNB Asset Management AS | 0.7% | 1,025,373 | SCHEDULE 13G/A, 2025-11-10 | 2025-09-30 |
| The Vanguard Group | 0% | 0 | SCHEDULE 13G/A, 2026-03-27 | 2026-03-13 |
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More on Sandisk Corp and the records around it.
Sandisk Corp elsewhere on the record
Companies that share a holder
- DnB Asset Management AS also filed stake reports on 3 other companies: Peloton Interactive, Inc. (Aug 2026), Atlassian Corporation (May 2026), Criteo S.A. (Feb 2026)
- JANE STREET GROUP, LLC also filed stake reports on 73 other companies: AXT INC (Nov 2026), BIOVIE INC. (Nov 2026), Bitdeer Technologies Group (Nov 2026)
- FMR LLC also filed stake reports on 761 other companies: ASPEN NEUROSCIENCE INC (Nov 2026), AVALO THERAPEUTICS INC (Nov 2026), BRAZE INC (Nov 2026)
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What the Full Report on Sandisk Corp covers
The Short Answer
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What They Do, And How The Money Works
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Voting and dispositive power, as filed
| Reporting person | Sole voting | Shared voting | Sole dispositive | Shared dispositive | Filing |
|---|---|---|---|---|---|
| BlackRock, Inc. | 10,088,654 | 0 | 11,085,551 | 0 | SCHEDULE 13G/A, 2026-10-27 |
| Fmr LLC | 7,436,510 | 0 | 7,861,064 | 0 | SCHEDULE 13G/A, 2026-08-06 |
| Abigail P. Johnson | 0 | 0 | 7,861,064 | 0 | SCHEDULE 13G/A, 2026-08-06 |
| Jane Street Group, LLC | 0 | 5,478,633 | 0 | 5,478,633 | SCHEDULE 13G/A, 2026-11-06 |
| Jane Street Capital, LLC | 0 | 5,225,211 | 0 | 5,225,211 | SCHEDULE 13G/A, 2026-11-06 |
| Jane Street Global Trading, LLC | 0 | 15,293 | 0 | 15,293 | SCHEDULE 13G/A, 2026-11-06 |
| Leonard Street Holdings, LP | 0 | 238,102 | 0 | 238,102 | SCHEDULE 13G/A, 2026-11-06 |
| Jane Street Singapore Pte. Ltd | 0 | 27 | 0 | 27 | SCHEDULE 13G/A, 2026-11-06 |
| Western Digital Corporation | 0 | 0 | 1,038,681 | 0 | SCHEDULE 13G/A, 2026-05-15 |
The latest filing identifies Sandisk Corp by CUSIP 80004C200 and gives its principal executive office as 951 SANDISK DRIVE, MILPITAS, CA 95035 (SCHEDULE 13G/A, 2026-11-06).
What the percentages are based on
0.7%. The percent of class is based on 148,089,758 shares of common stock outstanding as of April 24, 2026, as reported in the Issuer's Quarterly Report on Form 10-Q, filed on May 1, 2026 with the Securities and Exchange Commission.Western Digital Corporation, SCHEDULE 13G/A, 2026-05-15
Timeline
| Filed | Holder | Percent | Filing |
|---|---|---|---|
| 2025-07-01 | Western Digital Corporation | 5.2% | SCHEDULE 13G/A |
| 2025-07-17 | BlackRock, Inc. | 10.9% | SCHEDULE 13G/A |
| 2025-07-29 | The Vanguard Group | 11.39% | SCHEDULE 13G/A |
| 2025-08-12 | DnB Asset Management AS | 5.8% | SCHEDULE 13G |
| 2025-11-10 | DNB Asset Management AS | 0.7% | SCHEDULE 13G/A |
| 2026-01-21 | BlackRock, Inc. | 6% | SCHEDULE 13G/A |
| 2026-03-27 | The Vanguard Group | 0% | SCHEDULE 13G/A |
| 2026-04-07 | Fmr LLC | 8.7% | SCHEDULE 13G/A |
| 2026-04-30 | Vanguard Capital Management | 7.17% | SCHEDULE 13G |
| 2026-05-15 | Western Digital Corporation | 0.7% | SCHEDULE 13G/A |
| 2026-08-05 | Jane Street Group, LLC | 5% | SCHEDULE 13G |
| 2026-08-06 | Fmr LLC | 5.3% | SCHEDULE 13G/A |
| 2026-10-27 | BlackRock, Inc. | 7.7% | SCHEDULE 13G/A |
| 2026-11-06 | Jane Street Group, LLC | 3.7% | SCHEDULE 13G/A |
Questions about who owns Sandisk Corp
Who owns Sandisk Corp?
On this page, 3 holders' latest ownership filings report 5% or more of Sandisk Corp: BlackRock, Inc. (7.7%, Schedule 13G/A, filed 2026-10-27), Vanguard Capital Management (7.17%, Schedule 13G, filed 2026-04-30) and Fmr LLC (5.3%, Schedule 13G/A, filed 2026-08-06).
Who are the largest shareholders of Sandisk Corp?
By the share each holder's latest filing reports, the largest holders of Sandisk Corp on this page are BlackRock, Inc. (7.7%), Vanguard Capital Management (7.17%) and Fmr LLC (5.3%).
When did BlackRock, Inc. buy into Sandisk Corp?
The filings give report dates, not purchase dates. The earliest filing from BlackRock, Inc. on this page is the Schedule 13G/A, filed 2025-07-17, reporting 10.9%; its latest, Schedule 13G/A filed 2026-10-27, reports 7.7%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 14 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Where this comes from
Anyone who comes to own more than 5% of a class of a listed company's voting shares has to tell the SEC. A holder who may seek to change or influence the company files Schedule 13D, and has to say in Item 4, "Purpose of Transaction", what it intends to do. A holder with no such intent, such as many index and passive funds, may file the shorter Schedule 13G. Both are amended when the stake changes, including when it falls below 5%.
Every row here is one of those filings, linked to the filing itself. Percentages and share counts are exactly as the holder filed them, for the holder the filing names; an amendment showing a lower figure is shown as filed. Item 4 text is quoted word for word. Where a 13D's Item 4 contains a sentence stating a definite intent to influence the company, that sentence is marked and quoted; the page does not describe the holder or its motives beyond the words it filed. Nothing here is investment advice.