Assenagon Asset Management S.A. 13F: Adds $360M to SNDK Stake

Assenagon Asset Management S.A. expanded its investment in Sandisk Corporation (NasdaqGS: SNDK), lifting its stake by 33.3% during the period covered by its latest Form 13F filing with the SEC on October 15, 2026. The institutional investor picked up 207,051 more shares of the computer hardware company, bringing its total ownership to 828,900 shares. According to the regulatory disclosure, the reported value of the stake reached about $1.44 billion.

What Changed in Assenagon Asset Management's Sandisk Position

Assenagon Asset Management grew its holdings from 621,849 shares up to 828,900 shares for a net addition of 207,051 shares. Because 13F filings look backward at holdings from the end of the reported quarter, this update reflects the fund's positioning at that time and may not match its exact share count today.

Other Institutional Activity in Sandisk

Other large money managers also shifted their positions in Sandisk during recent reporting cycles. Blackrock Inc. reduced its holdings by 108,196 shares, ending with 10,295,300 shares worth about $13.38 billion. Vanguard Capital Management LLC grew its holdings by 141,942 shares, ending with 9,668,255 shares worth about $12.56 billion. FMR, LLC trimmed 5,529,010 shares, wrapping up the period with 7,861,665 shares valued at roughly $10.21 billion. State Street Corporation grew its holdings by 353,395 shares, ending with 5,927,453 shares worth about $7.70 billion. Invesco Ltd. grew its holdings by 4,445,117 shares, ending with 5,610,346 shares worth about $7.29 billion.

Sandisk Corporation Stock Down 6.3%

Sandisk shares recently traded around $1,315.60 as of October 16, 2026. That puts the stock about 9.7% above its 200-day moving average of $1,199.66, though it sits roughly 44.1% below its 52-week high of $2,354.39. Analysts hold an average price target of $2,173.00 on the stock, with a consensus buy rating.

Recent Earnings

Sandisk reported trailing-twelve-month revenue of $20.25 billion alongside earnings of $73.76 per share. The company posted a net profit margin of 56.5% and a return on equity of 91.6%, with year-over-year revenue growth coming in at 371.6%. The company's next quarterly earnings report is scheduled for October 29, 2026.

Insider Buying and Selling at Sandisk Corporation

Company insiders executed several stock transactions ahead of the filing. Officer Bernard Shek sold 2,308 shares on September 8, 2026, at an average price of $1,767.33 for a total value of $4,078,998. Chief Executive Officer David V. Goeckeler disposed of 33,838 shares on September 14, 2026, valued at $51,700,130, and later sold another 33,841 shares on September 17, 2026, valued at $53,272,704. Chief Financial Officer Lomelin Luis Felipe Visoso sold 1,000 shares on September 15, 2026, at an average price of $1,568.83 for a total of $1,568,830.

Analysts Set New Price Targets

Wall Street firms updated their views on Sandisk in recent months. On August 14, 2026, RBC Capital maintained a Sector Perform rating while raising its price target to $1,600.00 from $1,300.00. On the same day, Wells Fargo maintained an Equal-Weight rating and raised its target from $1,400.00 to $1,550.00. Mizuho maintained an Outperform rating on August 25, 2026, while adjusting its target from $1,900.00 to $1,875.00. Rosenblatt initiated coverage with a Buy rating and a $2,400.00 target on September 22, 2026. Later, on October 6, 2026, Mizuho maintained its Outperform rating and lifted its target to $2,050.00.

About Sandisk Corporation

Sandisk Corporation develops and manufactures data storage devices and solutions using NAND flash technology for customers around the world. Based in Milpitas, California, the company supplies high-capacity flash memory products used in consumer electronics, mobile devices, and enterprise data centers. Institutional interest in the hardware maker remains high as the sector navigates shifting demand cycles.

Bottom Line

Assenagon's increased stake highlights continued institutional positioning in Sandisk ahead of its upcoming earnings report on October 29, 2026. Investors will be watching the upcoming financial results to see if the company's strong trailing revenue and margins continue to support its valuation. Keep in mind that 13F filings are backward-looking: they show holdings as of the end of the reporting quarter and may not represent the fund's current position.