Vault-13

SANDISK CORP SNDK

COM · Common Stock · CUSIP 80004C200 · ISIN US80004C2008

American semiconductor company - memory and storage technologies

418 institutional holders -4 vs Q1 2025
138,592,069138.6m shares reported held*
95.1% of all shares outstanding*
$6.3bnreported value*
90 new 136 added 124 reduced 97 sold out net bought ≈ $1.3bn (+29.4m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($7.7m this quarter). Holder counts are more reliable. Shares outstanding: 145.8m as of 2025-08-13, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $45.36. Options: 19 managers hold calls ($145.5m notional), 22 hold puts ($102.3m).

Trends to Q2 2025

Institutional holders

Managers reporting a position, each quarter

0200400600Q1 25: 422Q2 25: 418418Q1 25Q2 25
Numbers
QuarterHolders
Q1 2025422
Q2 2025418

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$50m$100m$150m$200mQ3 24 calls: $0Q3 24 puts: $0Q3 24P/C —Q4 24 calls: $0Q4 24 puts: $0Q4 24P/C —Q1 25 calls: $175.3mQ1 25 puts: $102.3mQ1 25P/C 0.58Q2 25 calls: $145.5mQ2 25 puts: $102.3mQ2 25P/C 0.70
Numbers
QuarterCallsPutsP/C
Q3 2024$0$0—
Q4 2024$0$0—
Q1 2025$175.3m$102.3m0.58
Q2 2025$145.5m$102.3m0.70

Biggest buyers

FIL Ltd Added +3,835,566+3.8m
Madison Avenue Partners, LP New +3,571,109+3.6m
VANGUARD GROUP INC Added +2,870,306+2.9m
Balyasny Asset Management L.P. New +2,489,614+2.5m
BlackRock, Inc. Added +2,369,165+2.4m
VICTORY CAPITAL MANAGEMENT INC Added +2,230,786+2.2m
DNB Asset Management AS Added +2,203,005+2.2m
PRICE T ROWE ASSOCIATES INC /MD/ Added +1,616,734+1.6m
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP New +1,378,116+1.4m
FMR LLC Added +1,220,778+1.2m

Biggest sellers

SAMLYN CAPITAL, LLC Sold out -1,246,673-1.2m
JPMORGAN CHASE & CO Reduced -903,228-903.2k
Capitolis Liquid Global Markets LLC Sold out -800,000-800.0k
KEYSTONE INVESTORS PTE LTD Sold out -766,770-766.8k
NEUBERGER BERMAN GROUP LLC Reduced -723,435-723.4k
AMF Tjanstepension AB Sold out -625,110-625.1k
Atalan Capital Partners, LP Sold out -511,664-511.7k
Allianz Asset Management GmbH Sold out -448,551-448.6k
Freestone Grove Partners LP Reduced -398,660-398.7k
Artemis Investment Management LLP Sold out -341,519-341.5k

Biggest calls

CITADEL ADVISORS LLC Reduced $39.6m872.3k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $22.4m494.5k shares
Walleye Trading LLC Added $19.2m423.8k shares
Balyasny Asset Management L.P. New $12.5m275.0k shares
NOMURA HOLDINGS INC Unchanged $8.2m180.0k shares
PEAK6 LLC Added $7.1m155.7k shares
BARCLAYS PLC Unchanged $5.8m128.5k shares
SIMPLEX TRADING, LLC Added $5.5m121.9k shares
JANE STREET GROUP, LLC Reduced $4.7m102.6k shares
WOLVERINE TRADING, LLC Added $4.0m85.5k shares

Biggest puts

CITADEL ADVISORS LLC Reduced $18.1m400.2k shares
JANE STREET GROUP, LLC Reduced $15.2m334.6k shares
Walleye Trading LLC Added $15.1m333.7k shares
CSS LLC/IL Unchanged $15.0m330.0k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $9.0m198.8k shares
KINGDON CAPITAL MANAGEMENT, L.L.C. New $7.3m160.0k shares
PEAK6 LLC Added $5.0m110.4k shares
HBK INVESTMENTS L P Added $3.4m75.0k shares
BANK OF MONTREAL /CAN/ New $2.3m50.0k shares
IMC-Chicago, LLC New $1.6m36.2k shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
BlackRock, Inc. 13G · institution +1.7 pts · filed 2026-10-27 7.7% +1.7 pts 11.1m≈ $25.2bn 2026-10-27
VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 7.2% new 11.0m≈ $25.0bn 2026-04-30
FMR LLC 13G · institution -3.4 pts · filed 2026-08-06 5.3% -3.4 pts 7.9m≈ $17.9bn 2026-08-06
JANE STREET GROUP, LLC 13G · passive investor new · filed 2026-08-05 5.0% new 7.4m≈ $16.8bn 2026-08-05

Fell to 5% or below in the last year: WESTERN DIGITAL CORP (0.7%, 2026-05-15), VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD CAPITAL MANAGEMENT LLC)

Insider purchases and sales in Q2 2025

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

None reported in Q2 2025.

Holders, Q2 2025

#ManagerLocationShares Value% of their portfolioChangeShares change
1 FMR LLC 0.06% of their portfolio BOSTON, MA 21,794,91921.8m $988.4m $988.4m 0.06% Added +1.2m +1,220,778
2 BlackRock, Inc. 0.01% of their portfolio New York, NY 16,764,93216.8m $760.3m $760.3m 0.01% Added +2.4m +2,369,165
3 VANGUARD GROUP INC 0.01% of their portfolio Valley Forge, PA 16,554,87816.6m $750.8m $750.8m 0.01% Added +2.9m +2,870,306
4 DNB Asset Management AS 1.34% of their portfolio Oslo, Q8 7,109,2857.1m $322.4m $322.4m 1.34% Added +2.2m +2,203,005
5 PRICE T ROWE ASSOCIATES INC /MD/ 0.03% of their portfolio BALTIMORE, MD 5,654,4615.7m $256.4m $256.4m 0.03% Added +1.6m +1,616,734
6 Slate Path Capital LP 3.70% of their portfolio New York, NY 4,738,6184.7m $214.9m $214.9m 3.70% Added +144.3k +144,267
7 FIL Ltd 0.18% of their portfolio HAMILTON, D0 4,532,6034.5m $205.6m $205.6m 0.18% Added +3.8m +3,835,566
8 STATE STREET CORP 0.01% of their portfolio BOSTON, MA 4,276,6814.3m $193.9m $193.9m 0.01% Added +678.1k +678,099
9 Madison Avenue Partners, LP 10.81% of their portfolio NEW YORK, NY 3,571,1093.6m $161.9m $161.9m 10.81% New
10 UBS Group AG 0.03% of their portfolio ZURICH, V8 3,350,7453.4m $152.0m $152.0m 0.03% Reduced -74.1k -74,055
11 Balyasny Asset Management L.P. 0.26% of their portfolio Chicago, IL 2,489,6142.5m $112.9m $112.9m 0.26% New
12 GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio BOSTON, MA 2,392,6902.4m $108.5m $108.5m 0.01% Added +456.4k +456,445
13 VICTORY CAPITAL MANAGEMENT INC 0.07% of their portfolio San Antonio, TX 2,238,5382.2m $101.5m $101.5m 0.07% Added +2.2m +2,230,786
14 CITADEL ADVISORS LLC 0.08% of their portfolio MIAMI, FL 2,147,3082.1m $97.4m $97.4m 0.08% Added +528.9k +528,933
15 AMERIPRISE FINANCIAL INC 0.02% of their portfolio MINNEAPOLIS, MN 1,836,7081.8m $83.3m $83.3m 0.02% Added +492.6k +492,560
16 MORGAN STANLEY 0.01% of their portfolio NEW YORK, NY 1,831,7491.8m $83.1m $83.1m 0.01% Added +199.0k +198,978
17 NORGES BANK 0.01% of their portfolio OSLO, Q8 1,750,7271.8m $79.4m $79.4m 0.01% Added +299.7k +299,734
18 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 1,560,6051.6m $70.8m $70.8m 0.00% Reduced -903.2k -903,228
19 ALLIANCEBERNSTEIN L.P. 0.02% of their portfolio NASHVILLE, TN 1,544,3331.5m $70.0m $70.0m 0.02% Added +196.0k +196,048
20 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio SAN FRANCISCO, CA 1,442,2391.4m $65.4m $65.4m 0.01% Added +157.4k +157,368
21 ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.04% of their portfolio BOSTON, MA 1,378,1161.4m $62.5m $62.5m 0.04% New
22 PARNASSUS INVESTMENTS, LLC 0.11% of their portfolio San Francisco, CA 1,019,1611.0m $46.2m $46.2m 0.11% Added +267.8k +267,816
23 MILLENNIUM MANAGEMENT LLC 0.04% of their portfolio NEW YORK, NY 981,228981.2k $44.5m $44.5m 0.04% Added +961.9k +961,874
24 NORTHERN TRUST CORP 0.01% of their portfolio CHICAGO, IL 935,732935.7k $42.4m $42.4m 0.01% Added +188.0k +188,030
25 Bank of New York Mellon Corp 0.01% of their portfolio NEW YORK, NY 913,347913.3k $41.4m $41.4m 0.01% Added +238.8k +238,796
26 Ghisallo Capital Management LLC 1.10% of their portfolio BOSTON, MA 905,000905.0k $41.0m $41.0m 1.10% New
27 DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio AUSTIN, TX 836,627836.6k $38.0m $38.0m 0.01% Reduced -13.3k -13,336
28 AQR CAPITAL MANAGEMENT LLC 0.03% of their portfolio Greenwich, CT 822,442822.4k $37.3m $37.3m 0.03% Added +761.5k +761,505
29 Burkehill Global Management, LP 2.68% of their portfolio NEW YORK, NY 800,000800.0k $36.3m $36.3m 2.68% New
30 Elliott Investment Management L.P. 0.28% of their portfolio WEST PALM BEACH, FL 749,997750.0k $34.0m $34.0m 0.28% Unchanged
31 DEPRINCE RACE & ZOLLO INC 0.69% of their portfolio Winter Park, FL 731,830731.8k $33.2m $33.2m 0.69% Added +371.9k +371,909
32 Invesco Ltd. 0.01% of their portfolio ATLANTA, GA 714,294714.3k $32.4m $32.4m 0.01% Added +92.6k +92,617
33 PRINCIPAL FINANCIAL GROUP INC 0.02% of their portfolio DES MOINES, IA 666,446666.4k $30.2m $30.2m 0.02% Added +94.6k +94,588
34 Legal & General Group Plc 0.01% of their portfolio London, X0 562,786562.8k $25.5m $25.5m 0.01% Reduced -78.7k -78,708
35 Schonfeld Strategic Advisors LLC 0.19% of their portfolio NEW YORK, NY 560,144560.1k $25.4m $25.4m 0.19% Added +23.2k +23,156
36 Maple Rock Capital Partners Inc. 1.25% of their portfolio Toronto, A6 552,000552.0k $25.0m $25.0m 1.25% Added +303.6k +303,645
37 SOROS FUND MANAGEMENT LLC 0.41% of their portfolio NEW YORK, NY 526,825526.8k $23.9m $23.9m 0.41% New
38 SEVEN GRAND MANAGERS, LLC 2.72% of their portfolio BRONXVILLE, NY 500,000500.0k $22.7m $22.7m 2.72% New
39 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 497,133497.1k $22.5m $22.5m 0.00% Reduced -230.1k -230,126
40 ExodusPoint Capital Management, LP 0.27% of their portfolio NEW YORK, NY 485,647485.6k $22.0m $22.0m 0.27% New
41 Public Sector Pension Investment Board 0.09% of their portfolio MONTREAL, A8 460,714460.7k $20.9m $20.9m 0.09% Added +95.2k +95,223
42 RENAISSANCE TECHNOLOGIES LLC 0.02% of their portfolio NEW YORK, NY 413,100413.1k $18.7m $18.7m 0.02% New
43 MARSHALL WACE, LLP 0.02% of their portfolio LONDON, X0 401,715401.7k $18.2m $18.2m 0.02% Added +289.2k +289,206
44 BTG Pactual Asset Management US LLC 2.44% of their portfolio NEW YORK, NY 400,000400.0k $18.1m $18.1m 2.44% New
45 DEUTSCHE BANK AG\ 0.01% of their portfolio FRANKFURT AM MAIN, 2M 389,883389.9k $17.7m $17.7m 0.01% Reduced -57.6k -57,613
46 KINGDON CAPITAL MANAGEMENT, L.L.C. 3.24% of their portfolio NEW YORK, NY 370,000370.0k $16.8m $16.8m 3.24% New
47 TEACHER RETIREMENT SYSTEM OF TEXAS 0.07% of their portfolio AUSTIN, TX 369,237369.2k $16.7m $16.7m 0.07% Added +281.2k +281,243
48 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 351,715351.7k $16.0m $16.0m 0.00% Reduced -118.8k -118,820
49 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 337,454337.5k $15.3m $15.3m 0.00% Added +103.6k +103,586
50 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 332,276332.3k $15.1m $15.1m 0.00% Reduced -92.1k -92,107
51 NEUBERGER BERMAN GROUP LLC 0.01% of their portfolio NEW YORK, NY 323,868323.9k $14.7m $14.7m 0.01% Reduced -723.4k -723,435
52 Talos Eurisko Asset Management LP 3.42% of their portfolio NEW YORK, NY 314,600314.6k $14.3m $14.3m 3.42% New
53 RHUMBLINE ADVISERS 0.01% of their portfolio BOSTON, MA 314,239314.2k $14.3m $14.3m 0.01% Added +42.6k +42,625
54 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.02% of their portfolio BALA CYNWYD, PA 311,205311.2k $14.1m $14.1m 0.02% Reduced -35.2k -35,178
55 LSV ASSET MANAGEMENT 0.03% of their portfolio CHICAGO, IL 299,875299.9k $13.6m $13.6m 0.03% Reduced -14.3k -14,317
56 Freestone Grove Partners LP 0.10% of their portfolio San Francisco, CA 298,744298.7k $13.5m $13.5m 0.10% Reduced -398.7k -398,660
57 PRIMECAP MANAGEMENT CO/CA/ 0.01% of their portfolio PASADENA, CA 283,370283.4k $12.9m $12.9m 0.01% Reduced -96.8k -96,842
58 HBK INVESTMENTS L P 0.22% of their portfolio DALLAS, TX 274,123274.1k $12.4m $12.4m 0.22% Added +65.0k +65,002
59 Swiss National Bank 0.01% of their portfolio ZURICH, V8 262,802262.8k $11.9m $11.9m 0.01% Added +39.9k +39,900
60 Amundi 0.00% of their portfolio Paris, I0 252,621252.6k $11.7m $11.7m 0.00% New
61 BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio PARIS, I0 234,872234.9k $10.7m $10.7m 0.01% Added +195.5k +195,503
62 Squarepoint Ops LLC 0.02% of their portfolio NEW YORK, NY 226,274226.3k $10.3m $10.3m 0.02% Added +21.0k +21,042
63 Holocene Advisors, LP 0.02% of their portfolio New York, NY 215,426215.4k $9.8m $9.8m 0.02% New
64 Jain Global LLC 0.14% of their portfolio NEW YORK, NY 204,936204.9k $9.3m $9.3m 0.14% Added +163.7k +163,737
65 Nuveen, LLC 0.00% of their portfolio CHARLOTTE, NC 203,518203.5k $9.2m $9.2m 0.00% Reduced -18.6k -18,614
66 JUPITER ASSET MANAGEMENT LTD 0.07% of their portfolio London, X0 193,023193.0k $8.8m $8.8m 0.07% New
67 Skandinaviska Enskilda Banken AB (publ) 0.04% of their portfolio STOCKHOLM, V7 188,846188.8k $8.6m $8.6m 0.04% Added +85.0k +84,972
68 Zweig-DiMenna Associates LLC 0.86% of their portfolio NEW YORK, NY 185,003185.0k $8.4m $8.4m 0.86% Added +142.5k +142,500
69 State of Alaska, Department of Revenue 0.09% of their portfolio JUNEAU, AK 183,418183.4k $8.3m $8.3m 0.09% Added +119.6k +119,567
70 GENDELL JEFFREY L 0.20% of their portfolio Greenwich, CT 164,839164.8k $7.5m $7.5m 0.20% Added +129.8k +129,839
71 Russell Investments Group, Ltd. 0.01% of their portfolio Seattle, WA 162,905162.9k $7.4m $7.4m 0.01% Added +75.4k +75,357
72 California Public Employees Retirement System 0.00% of their portfolio Sacramento, CA 162,900162.9k $7.4m $7.4m 0.00% Reduced -12.3k -12,300
73 SORA INVESTORS LLC 0.66% of their portfolio BRYN MAWR, PA 160,474160.5k $7.3m $7.3m 0.66% Reduced -61.6k -61,560
74 Maytus Capital Management, LLC 1.32% of their portfolio NEW YORK, NY 158,034158.0k $7.2m $7.2m 1.32% Reduced -35.6k -35,566
75 Longaeva Partners L.P. 1.63% of their portfolio Chicago, IL 150,000150.0k $6.8m $6.8m 1.63% New
76 Polymer Capital Management (HK) LTD 1.02% of their portfolio HONG KONG, K3 144,064144.1k $6.5m $6.5m 1.02% Reduced -32.5k -32,546
77 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 139,496139.5k $6.3m $6.3m 0.00% Reduced -49.1k -49,101
78 PRUDENTIAL FINANCIAL INC 0.01% of their portfolio NEWARK, NJ 132,368132.4k $6.0m $6.0m 0.01% Added +21.6k +21,604
79 683 Capital Management, LLC 0.61% of their portfolio NEW YORK, NY 132,000132.0k $6.0m $6.0m 0.61% Reduced -8.0k -8,000
80 JANE STREET GROUP, LLC 0.01% of their portfolio NEW YORK, NY 130,515130.5k $5.9m $5.9m 0.01% Reduced -22.4k -22,387
81 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio WEST SACRAMENTO, CA 128,856128.9k $5.8m $5.8m 0.01% Added +22.3k +22,266
82 NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio ALBANY, NY 122,223122.2k $5.5m $5.5m 0.01% Added +4.4k +4,383
83 CAXTON ASSOCIATES LLP 0.14% of their portfolio LONDON, X0 122,199122.2k $5.5m $5.5m 0.14% New
84 ALGERT GLOBAL LLC 0.11% of their portfolio SAN FRANCISCO, CA 116,013116.0k $5.3m $5.3m 0.11% New
85 WORLDQUANT MILLENNIUM ADVISORS LLC 0.02% of their portfolio NEW YORK, NY 110,568110.6k $5.0m $5.0m 0.02% New
86 STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.01% of their portfolio TALLAHASSEE, FL 101,095101.1k $4.6m $4.6m 0.01% Added +680 +680
87 Thrivent Financial for Lutherans 0.01% of their portfolio Minneapolis, MN 99,36299.4k $4.5m $4.5m 0.01% Added +14.7k +14,719
88 JANUS HENDERSON GROUP PLC 0.00% of their portfolio LONDON, X0 98,80798.8k $4.5m $4.5m 0.00% Added +22.9k +22,923
89 BANK OF MONTREAL /CAN/ 0.00% of their portfolio TORONTO, A6 97,97398.0k $4.4m $4.4m 0.00% Reduced -201.3k -201,319
90 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 97,13897.1k $4.4m $4.4m 0.00% Added +41.8k +41,769
91 PEAK6 LLC 0.08% of their portfolio AUSTIN, TX 97,07697.1k $4.4m $4.4m 0.08% Added +86.2k +86,189
92 CastleKnight Management LP 0.28% of their portfolio New York, NY 94,60094.6k $4.3m $4.3m 0.28% New
93 Verition Fund Management LLC 0.02% of their portfolio GREENWICH, CT 93,13293.1k $4.2m $4.2m 0.02% Added +77.2k +77,187
94 Jefferies Financial Group Inc. 0.07% of their portfolio NEW YORK, NY 91,52891.5k $4.2m $4.2m 0.07% New
95 Symmetry Investments LP 0.31% of their portfolio ST HELIER, Y9 82,01582.0k $3.7m $3.7m 0.31% Added +53.1k +53,137
96 WINTON GROUP Ltd 0.18% of their portfolio LONDON, X0 79,11379.1k $3.6m $3.6m 0.18% New
97 Boussard & Gavaudan Investment Management LLP 0.47% of their portfolio London, X0 78,60578.6k $3.6m $3.6m 0.47% New
98 Clearline Capital LP 0.31% of their portfolio NEW YORK, NY 78,33078.3k $3.6m $3.6m 0.31% Unchanged
99 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 73,99674.0k $3.4m $3.4m 0.00% Reduced -10.2k -10,205
100 Quantbot Technologies LP 0.09% of their portfolio NEW YORK, NY 73,44873.4k $3.3m $3.3m 0.09% Added +60.1k +60,108