Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in WDC held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 35.8M | $9.68B | +0.7% | 10.550% | 0.17% |
| 2 | FMR LLC | 31.6M | $8.55B | -6.4% | 9.327% | 0.46% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 22.0M | $5.96B | β | 6.499% | 0.15% |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | 17.2M | $4.65B | β | 5.065% | 0.25% |
| 5 | STATE STREET CORP | 15.5M | $4.18B | -1.5% | 4.562% | 0.14% |
| 6 | Capital World Investors | 11.9M | $3.21B | +1017.0% | 3.504% | 0.44% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 9.5M | $2.56B | +2.1% | 2.795% | 0.16% |
| 8 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 9.1M | $2.46B | +19.1% | 2.679% | 0.28% |
| 9 | BANK OF AMERICA CORP /DE/ | 8.5M | $2.30B | -29.5% | 2.504% | 0.17% |
| 10 | MORGAN STANLEY | 7.9M | $2.15B | -11.2% | 2.342% | 0.13% |
| 11 | WCM INVESTMENT MANAGEMENT, LLC | 6.6M | $1.65B | -1.9% | 1.935% | 3.77% |
| 12 | GOLDMAN SACHS GROUP INC | 6.0M | $1.61B | +16.7% | 1.758% | 0.19% |
| 13 | AMERIPRISE FINANCIAL INC | 5.8M | $1.56B | -32.2% | 1.703% | 0.36% |
| 14 | Invesco Ltd. | 5.6M | $1.51B | +0.7% | 1.643% | 0.23% |
| 15 | UBS Group AG | 4.7M | $1.26B | -7.7% | 1.379% | 0.19% |
| 16 | NORTHERN TRUST CORP | 3.6M | $975.5M | -1.8% | 1.064% | 0.13% |
| 17 | AQR CAPITAL MANAGEMENT LLC | 3.5M | $913.0M | +16.4% | 1.020% | 0.42% |
| 18 | Capital Research Global Investors | 3.3M | $895.1M | β | 0.976% | 0.14% |
| 19 | Amundi | 3.1M | $827.4M | +27.5% | 0.902% | 0.23% |
| 20 | Nuveen, LLC | 3.0M | $800.4M | -35.1% | 0.873% | 0.22% |
| 21 | UBS ASSET MANAGEMENT AMERICAS INC | 2.9M | $785.2M | +3.3% | 0.856% | 0.16% |
| 22 | FRED ALGER MANAGEMENT, LLC | 2.7M | $719.5M | -0.9% | 0.784% | 3.16% |
| 23 | Bank of New York Mellon Corp | 2.5M | $678.6M | +21.0% | 0.740% | 0.12% |
| 24 | DIMENSIONAL FUND ADVISORS LP | 2.5M | $676.8M | -29.8% | 0.738% | 0.14% |
| 25 | BNP PARIBAS ARBITRAGE, SA | 1.2M | $610.9M | -15.5% | 0.354% | 0.30% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in WDC β a direct measure of their conviction.
Filings activity in WDC during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new WDC position in Q1 2026
Institutions that fully closed their WDC position in Q1 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 1,374 | +21% | 44.05% | +13.32 pp | $84.06B | +43% |
| Q4 2025 | 1,137 | +23% | 30.73% | +8.54 pp | $58.65B | +39% |
| Q3 2025 | 927 | +26% | 22.19% | +9.38 pp | $42.34B | +73% |
| Q2 2025 | 734 | +16% | 12.81% | +5.56 pp | $24.44B | +77% |
| Q1 2025 | 631 | 7.3% | 7.25% | 4.76 pp | $13.85B | 40% |
| Q4 2024 | 681 | +2.7% | 12.01% | +0.92 pp | $22.91B | +8.2% |
| Q3 2024 | 663 | 8.8% | 11.09% | 5.13 pp | $21.17B | 32% |
| Q2 2024 | 727 | β | 16.22% | β | $30.95B | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying WDC stock.
Based on Q1 2026 13F filings, institutional ownership of Western Digital Corporation stands at 44.0%, held across 1,374 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of WDC, with approximately 35,769,222 shares worth $9.68B as of Q1 2026.
Yes β 1 widely-followed marquee investor appear among the top 25 institutional holders of WDC, including SUSQUEHANNA INTERNATIONAL GROUP, LLP.
Our composite Smart Money Score for WDC is 74 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
374 institutions opened new positions in WDC during Q1 2026, while 137 fully exited. 849 added to existing positions and 148 trimmed.
WDC institutional ownership rose by 13.32 percentage points quarter-over-quarter, with a net change of +237 holders.
The top 10 institutions account for 54.4% of all reported 13F value in WDC, and the top 25 account for 72.8%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Western Digital Corporation (WDC) Institutional Ownership