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Of the 22 tracked institutions holding SNDK, 14 have a 3-year clone track record — 12 of them beat the S&P. Average holder's clone alpha: +6.3pt. It's a gauge of who owns the name, not just how many.
Among the 22 tracked institutional investors we monitor, SNDK (SANDISK CORP) is held with a combined value of $27.90B across 54,576,572 shares. The largest holder is FMR LLC with a position worth $8.51B (0.45% of their portfolio). 6 funds opened new positions in the most recent quarter. 7 funds increased their holdings. 9 funds reduced their position.
Total Institutional Value
$27.90B
Total Shares Held
54,576,572
Institutional Holders
22
% of Shares Outstanding
36.9%
of 148.09M shares · SEC 2026-04-24
Days to Cover
1.0+9.2%
7.86M shares short · FINRA 2026-07-15
Tracked 13F institutions hold 36.9% of SNDK's shares outstanding. This is a floor: 13F filings arrive on a ~45-day lag and we track only a subset of institutional filers, so true institutional ownership is higher. Shares-outstanding is the latest SEC cover-page figure (as of 2026-04-24), not a live float.
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
0
$0
3
$4.05M
Total Transactions
3
Last 12 months
| Date | Insider | Code | Type | Shares | Value |
|---|---|---|---|---|---|
| Jul 1, 2026 | Bernard Shek | S | Sale | 600 | $1.25M |
| Jun 3, 2026 | Bernard Shek | S | Sale | 600 | $1.04M |
| Jun 1, 2026 | Alper Ilkbahar | S | Sale | 999 | $1.75M |
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | FMR LLC | $8.51B | 0.45% | -37.6% |
| 2 | BlackRock, Inc. | $6.61B | 0.12% | +8.1% |
| 3 | VANGUARD GROUP INC | $4.03B | 0.06% | -3.3% |
| 4 | STATE STREET CORP | $3.54B | 0.12% | +5.5% |
| 5 | MILLENNIUM MANAGEMENT LLC | $892.08M | 0.37% | -6.7% |
| 6 | PRICE T ROWE ASSOCIATES INC /MD/ | $734.29M | 0.08% | -19.6% |
| 7 | Situational Awareness LP | $724.36M | 18.79% | +8.2% |
| 8 | Whale Rock Capital Management LLC | $508.01M | 6.56% | -20.3% |
| 9 | RENAISSANCE TECHNOLOGIES LLC | $508.00M | 0.79% | -33.9% |
| 10 | AQR CAPITAL MANAGEMENT LLC | $419.91M | 0.19% | -38.9% |
| Member | Type | Date |
|---|---|---|
| Josh Gottheimer | Buy | May 7, 2026 |
| Alan Armstrong | Buy | Mar 27, 2026 |
| Gilbert Cisneros | Buy | Mar 13, 2026 |
| Gilbert Cisneros | Buy |
As of the latest SEC 13F filings, FMR LLC is the largest institutional holder of SNDK with a position worth $8.51B, representing 0.45% of their portfolio. In total, 22 institutional investors hold SNDK with a combined value of $27.90B.
In the most recent quarter, 6 funds opened a new position in SNDK. Additionally, 7 increased their holdings and 9 reduced their positions.
Institutional investors hold $27.90B worth of SNDK stock across 22 positions. The largest institutional holder is FMR LLC with $8.51B in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For SNDK, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their SNDK positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
| Jan 9, 2026 |
| Lisa McClain | Sell | Oct 31, 2025 |
| Lisa McClain | Sell | Oct 30, 2025 |
| Lisa McClain | Buy | Oct 30, 2025 |
| Rob Bresnahan | Sell | Apr 8, 2025 |
Showing 8 of 11. STOCK Act disclosures lag up to 45 days.
Last Close
$1,437
2026-07-24
YTD
+421.9%
61% of 52-week range
