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$SNDK:NASDAQ · SANDISK CORP

Sector: aimemory

Conviction from: NASDAQS&PCitriniSerenity

Tradable on: Bitget →

SanDisk designs and produces flash memory storage products, including solid-state drives, memory cards, and USB drives for consumer and enterprise use.

5 tracked filer(s) hold this · 4 opened, 0 added, 1 trimmed in 31-MAR-2026

Aggregate 13FScore 67 — mean of 5 scored holder(s) · buyers (new/add) avg 74. Higher = the smart money in this name has the better track record.

Filer13FScoreThis quarterSharesValue% of their book
David Tepper / Appaloosa93New buy281,250$178,689,3753.0%
Stanley Druckenmiller / Duquesne91New buy38,155$24,2410.7%
Louis Bacon / Moore56New buy42,290$26,868,5290.5%
Bridgewater55New buy9,457$6,008,4100.0%
Ancora42Trimmed -48%1,289$818,9530.0%

Beyond 13F — activists, insiders, politicians & research

Congressional trades all politician trades →

4 disclosed trade(s) by 3 filer(s).

Trade dateWhoTypeAmount
2026-05-07Josh Gottheimer NJ05BUY$1,001 - $15,000PTR
2026-03-27Alan Armstrong senateBUY$1,001 - $15,000PTR
2026-03-13Gilbert Cisneros CA31BUY$1,001 - $15,000PTR
2026-01-09Gilbert Cisneros CA31BUY$1,001 - $15,000PTR

Trump & executive branch trades all Trump/exec trades →

9 disclosed trade(s) by 1 filer(s).

Trade dateWhoTypeAmount
2026-07-01Trump, Donald J PresidentBUY$1,001 - $15,000PTR
2026-07-01Trump, Donald J PresidentSELL$1,001 - $15,000PTR
2026-07-01Trump, Donald J PresidentSELL$100,001 - $250,000PTR
2026-05-14Trump, Donald J PresidentBUY$15,004 - $50,000PTR
2026-05-14Trump, Donald J PresidentBUY$50,001 - $100,000PTR
2026-05-14Trump, Donald J PresidentBUY$1,001 - $15,000PTR
2026-05-14Trump, Donald J PresidentBUY$15,004 - $50,000PTR
2026-05-14Trump, Donald J PresidentBUY$1,001 - $15,000PTR
2026-05-14Trump, Donald J PresidentBUY$1,001 - $15,000PTR

Serenity (@aleabitoreddit) full tracker →

Bullish · 53 mention(s), 5 personal-position post(s) · first 2025-11-25 · last 2026-07-23

“Woah Nanya was my long earlier in the year... Did not expect $SNDK to take a $1B+ stake in it just now. Fact that Sandisk is taking stakes in companies like Nanya, means bottleneck in legacy memory might be bigger / more underpriced than marketes thought. Massive implications for others like Macronix + other TW companies. Or... $SNDK just has too much money from NAND price hiking and neede…” post →

All 53 tweet(s) mentioning this ticker
DateTweet
2026-07-23T04:49:37$INTC and $AMD to sign CPU LTAs with Chinese customers for AI DCs (Reuters). - Prices of some CPU products have risen more than 40% in China since the start of the year from sources. - Month-on-month increases topping 10% for some products CPUs were already a bottleneck, following CPU ratios du… · 1149 likes · 327,538 views
2026-07-21T17:41:05Wow, a historic single day recovery. $SIVEF +30.89% $IQEF +28.6% $AEHR +26.53% $CIFR +17.82% $NBIS +17.3% $AAOI +15.6% $LPK +14.48% $AXTI +14.12% $MU +12.54% $SNDK +12.8% $SOI +11.1% $TSEM +10.39% $LITE +9.25% $INTC +8.22% $AMD +8.11% $MRVL +7.27% · 4564 likes · 668,804 views
2026-07-15T16:01:18+00:00@michaelsikand DRAM 20%+ hike for next quarter, $SNDK LTAs with $META, $MU 16+ LTAs. Market: proceeds to sell off memory. 800G transceiver revision sharply upward? Lasers completely sold out into early 2029? Market: sells off photonics and laser companies. · 372 likes · 72,260 views
2026-07-15T01:48:14$AEHR back up +36.4% today off earnings! 2027 guide: $130-$150m (160-200% growth) from 2026 revenue. Sees opportunity to guide higher (assumes no memory revenue or little to none from newly benchmarked AI customer). Q4 bookings: $60.7M, effective backlog is $100.6M. - Lead AI processor wafer-lev… · 1229 likes · 556,010 views
2026-07-09T12:46:14Nothing like an internal $META memo getting published. Showing AI ramping as usual: - LTAs signed with Samsung and $SNDK for memory - LTAs signed with Sumitomo Electric for fiber optics - Expected to deploy 7GW compute infra this year, and doubling in 2027. - as much as $145B capex spend this yea… · 2026 likes · 528,484 views
2026-07-07T14:03:29Just putting it out there: If everything crashes together from $NBIS, $MRVL, $INTC, $SNDK, $AMD, $SIVE, $MU, $LITE, and others... Which are all down -4% to -10%+ today so far. Probably doesn't have anything to do with individual fundamentals. Indiscriminate selloffs from things like cascading… · 5092 likes · 1,229,049 views
2026-07-06T05:48:43Nomura’s report cites $AXTI and $IQE as the leading players. Then regarding ASP updates: - 2in InP substrate price hike 42-76% - 3in InP substrates price hike 78% - 2in EML Epiwafer price hike 50-75% - 3in CW Epiwafer price hike ~40%+ - Prices lower domestically in China as expected. Hyperscaler… · 1002 likes · 383,995 views
2026-07-05T15:36:44Just some consolidated updates on memory: - $MU leads new 1.5T Yen investment in Hiroshima ~$9.3B. (bullish read through for Disco, Advantest, Resonac, Towa) since capex is localized. - Morgan Stanley pointed out NAND will continue to be in short supply into 2027 so $SNDK / Kioxia type players a… · 2268 likes · 691,590 views
2026-07-02T19:12:55Always a fun time seeing semi markets crash from Bloomberg report framing once again… UBS analyst on $META report: “this is not new news”. Regardless: $AEHR down -18.3% $AAOI down -17.13% $SIVEF down -15.4% $SNDK down -14.8% $TER down -13.8% $GLW down -11.4% $MRVL down -11.2% $LITE down -10.2% $N… · 2150 likes · 441,474 views
2026-07-02After $AXTI went from $13 to $140, somewhere along the way up they had a massive float expansion along with dilution. Which it got approved, so as I mentioned before, I wasn't as comfortable talking about it if there's excessive dilution on retail investors. But I do think it's undervalued if th… · 99 likes · 21,675 views
2026-06-29@gurukid5995 Markets tend to rotate from bottleneck to bottleneck. Memory from $SNDK to $MU was the market's main focus this month, while optical names like $AAOI corrected. I think we'll see a rotation back into photonics eventually, it's personally my highest concentration theme. · 336 likes · 53,994 views
2026-06-26FYI, I posted ideas about $AXTI at $15, $AAOI at $30, $TSEM at $115, $LITE $300, $MU $300, $SNDK $400, $EWY $110, $SIVE $4. $IQE $13, $SOI $44 and so on. So when they finally have a massive correction due to macro drop the ideas are wrong? And most are still up a few hundred percent. TW CPO names… · 205 likes · 28,846 views
2026-06-25T16:55:54Nah, gonna fill out the job application for $WEN and set up camp behind the dumpsters. Even $MU and $SNDK ridiculous performance today couldn't save my port. Cheering on Japan though, hoping Sweden gets mogged with a 2-0 to represent the 20% drop. · 1009 likes · 538,797 views
2026-06-25@firstadopter Yep, I lost a sht ton recently and makes me sad if others did too. Always hard to build a port full of $SNDK type longs that go up despite macro climates. · 309 likes · 43,608 views
2026-06-25@AliTava2020 $DRAM is one of the more positive ETFs I have a view on since it's exposure to SK Hynix, Samsung, $MU, and $SNDK. Which is everything people kinda want for memory exposure. · 227 likes · 40,128 views
2026-06-23T15:42:09Curious if anyone's portfolio is green after today's fun day. $KORU: -32.06% $SOXL: -22.98% $IQE: -13.58% $DRAM: -12.6% $AXTI: -12.57% $FLNC: -12.5% $AAOI: -11.2% $SIVE: -11.7% $TSEM: -10.24% $SNDK: -12.5% $MU: -11.8% Sk Hynix: -12.35% Samsung: -9.6% $MRVL: -8.3% $LITE: -7.6% $SOI -7.15% $TSM: -6… · 2433 likes · 783,540 views
2026-06-21T06:18:53Apparently gym bros are the new hyperscalers. They’ve created a new bottleneck with whey protein? Now there’s $SNDK style price hikes. Maybe creatine is next with shortages. https://t.co/YY5waMXzKH · 2318 likes · 544,463 views
2026-06-21Nittobo (3110) is one of the most frustrating Japanese companies I've seen. They hold an monopoly in glass fiber cloth, like ~90%+ market share. But refuse to price hike T-Glass ASP, beyond something small like 20-30%. Could easy triple company valuations if they followed $SNDK + NAND but just due… · 84 likes · 24,394 views
2026-06-19i personally don't see any chance of oversupply, if anything photonics/lasers will be extremely supply constrained. it would be the same media playbook that went on with YMTC/CXMT earlier in the year with Chinese DRAM/NAND flooding narratives, now $MU, $SNDK, Samsung, and others are ATH. · 136 likes · 24,336 views
2026-06-18T14:54:06Just a reminder: 99% of X was bearish on memory 3 months ago... Since then: $MU $380 -> $1122 (+195.26%) $SNDK $565 -> $2155 (+281.42%) $EWY $132 -> $219 (+65.91%) SK Hynix 849K -> 2.685M KRW (+215.5%) Samsung 172K -> 362K KRW (+110.7%) If you see a bunch of projections on https://… · 2236 likes · 807,010 views
2026-06-18@0xPepeTerelu Yeah, pretty sure Citron shorted $SNDK around $600 and they're probably underwater by a ton now. · 129 likes · 28,752 views
2026-06-16T07:54:44I did say $MU looked like the next $NVDA. Now we're at a $1.23T MC. Started talking more about Samsung Electronics/Sk Hynix back in 2025. Put more concentration into the memory theme like $SNDK and others, Jan of this year. And I'm glad my prediction with Micron + memory is https://t.co/u23M2Xa… · 2089 likes · 863,279 views
2026-06-12T14:00:28+00:00All the $SNDK short sellers went extinct. Can’t believe it’s almost $2000 now? That aside feels like everyone is just waiting for the $SPCX IPO in a few hours. https://t.co/EahzuEy1KE · 1269 likes · 719,141 views
2026-05-25$RPI, close to ~3x returns. Off the media branded "Meme Stock". I think after retail saw institutions bear post my thesis posts. Then ended up paper handing $AXTI, then $RPI, then $IQE, then $EWY, then $SNDK, then $AAOI, then $SOI. And them watch them all go up 3x-15x+ after institutions bou… · 895 likes · 363,582 views
2026-05-24AI capex spend is expected to go to "$3 to $4 trillion annually" by 2030 from $NVDA Jensen Huang projections. You're not bullish enough. And it might be a good idea to stay exposed + own the keys of the AI Kingdom: -> $AXTI controls the materials buildout with photonics. -> $SOI controls the AI… · 2665 likes · 549,651 views
2026-05-24Photonics is nuanced and using ChatGPT/Gemini makes you miss all of it: 1. $SIVE is actually a chokepoint and partially a bottleneck. The reason it's a chokepoint is leading CPO/optical hyperscaler players go through Sivers, likely: Ayar. Celestial. Lightmatter. Lightelligence. Poet. If you … · 2868 likes · 785,694 views
2026-05-23I don't post dollar amounts because they don't matter. What matters is return %. Speaking of that... YTD: 3840.39%. I'm probably the only one in the world. Who called out multiple names that 10x'd in a short timeframe. Do you remember these thesis anon? 1. $AXTI 2. $SIVE 3. $AAOI 4. $LITE 5… · 4991 likes · 1,757,190 views
2026-04-24Who thought it was a good idea to give Tangerine Peel inspired companies the funds… To short the fastest growing names in photonics and memory? $SNDK and $AAOI have been on a hyperbolic run. And I see names like AAOI continuing to grow as optical transceiver + Made in America supply chains grow. · 794 likes · 127,714 views
2026-04-23Not the best idea to feel FOMO about the new “bottleneck” in every news cycle. It’s going from: $NVDA GPUs -> $MU Memory -> $IREN Power -> $LITE EMLs -> $SNDK Memory -> GPUs -> $AAOI transceivers -> Advanced Packaging -> Transformers -> $INTC CPUs… etc And next would be stuff like $LPK glass sub… · 2812 likes · 339,954 views
2026-04-23CPU "serious supply shortage" It's still funny to see CPUs become more like memory day-by-day with the price hikes like $SNDK. "Server CPUs have jumped between 10% and 20% since March" with $INTC and $AMD planning to further price hikes Q3. "CPU supply is likely to remain tight through 2026 and… · 1055 likes · 159,454 views
2026-04-22These are chokepoints over multiple year supercycles not bottlenecks. $AXTI, $SNDK fit the definition of a bottleneck. But stuff like glass core or dfb lasers should scale past 2028 and this is the beginning of the next volume ramp from architectural shifts in photonics or advanced packaging. · 80 likes · 12,056 views
2026-03-26If you don't know my style by now: I identify upcoming sectors (photonics, memory, drones), then go long on the entire supply chain. I'm not always right, though. $AVAV and the drone sectors were my biggest losses this year outside of $RDDT ( $OSS did end up 60%+ ). I still believe fundamental… · 879 likes · 155,071 views
2026-03-25Google's TurboQuant... And it's effect on $SNDK, $MU, SK Hynix, and others: What it does: -> 6x reduction in KV cache memory footprint -> 8x Speedup on H100 GPUs It's a compression algorithm. Now... Will it beat down memory? -> Prob not. Implications might be bullish for $ARM and others though… · 686 likes · 111,505 views
2026-03-25@Kaizen_Investor Probably strategic for $SNDK, don't think they'd just throw $1B around here and there. Will do some digging and see if there's any larger implications markets are missing. · 43 likes · 8,349 views
2026-03-25Woah Nanya was my long earlier in the year... Did not expect $SNDK to take a $1B+ stake in it just now. Fact that Sandisk is taking stakes in companies like Nanya, means bottleneck in legacy memory might be bigger / more underpriced than marketes thought. Massive implications for others like M… · 403 likes · 68,516 views
2026-03-24I’m genuinely impressed there’s people out there holding $IREN. Imagine getting close to half the market cap… ~$6B eventually diluted, sold into the open market against every stock rally… then still being bullish? If you’re avoiding $SNDK or $AAOI for 100-200%+ YTD. Because you care more about… · 845 likes · 214,484 views
2026-03-24If you're new to $AAOI: It looks scary entering positions near ATH at $109 after a 175% YTD increase. However, this looks like the photonics equivalent of $SNDK. And it so happens the center of the optical transceiver supercycle... At a $8.2B valuation we can look at projections: (est. Capaci… · 935 likes · 144,700 views
2026-02-24Year to Date: 412.72% Lot of it is just picking the right sector, profiting off of Jane Street algos weekly, and a bit of luck. In terms of bottleneck longs, these are currently my favorite: 1. Memory - Samsung, Sk Hynix, $SNDK, $MU, $SIMO 2. Photonics - $LITE, $COHR, $AAOI, $AXTI, (maybe Ya… · 3849 likes · 1,001,737 views
2026-02-24@ZeroKnowledger_ They’re going to get their positions nuked on $SNDK? Zero clue, just adds fuel to the fire for the rally · 28 likes · 4,893 views
2026-02-23$SNDK does not concern itself with the rest of the market. https://t.co/vUk3NUnQ0P · 622 likes · 72,214 views
2026-02-21Thanks! I’m sure there’s some folks out there but hard to find. I’ve been looking at $SNDK as my benchmark to see how im doing vs. the best performer in the market. But there was a decent amount of mispricing I’ve found! I’ll publish some of the other things I’ve been doing later. · 9 likes · 1,315 views
2026-02-20$EWY looks like it's about to get more volatile. Market makers might not be pricing in leap option IV correctly as IV may expand past 55%. Two reasons due to unrealized (but upcoming) volatility. - 10X leveraged Samsung / Sk Hynix through Defi are here as they begin ramp-up. This creates a gre… · 305 likes · 174,227 views
2026-01-25TLDR of my top foreign stocks: 1. Nitto Boseki - T-Glass (Japan) 2. Unimicron - Substrates/Glass Core (Taiwan) 3. Samsung/SK Hynix - HBM (Korea) 4. Kioxia - NAND w/ $SNDK (Japan) 5. Nanya Technologies - Memory (Taiwan) US supply chains like $INTC (foundry), $MU (memory), or $LPTH (germ… · 744 likes · 351,357 views
2026-01-25People are long $MU / $SNDK for "The Memory Supercycle". Or "Copper" because of demand. But is obvious trade in front of you? $BBW - Build a Bear. 5y Return: Teddy Bear: 1301.55% Nvidia: +1,258.68% While you're fighting for crumbs in the GPU/Memory/Copper supply chains, you could have just bou… · 573 likes · 150,065 views
2026-01-25@DheerajNam Wow thanks for pointing out that it’s actually more than a 100%+ increase. I missed that. These numbers just break traditional modeling estimates for companies like $MU, $SNDK, SK Hynix, and Samsung. · 20 likes · 3,840 views
2026-01-25This was just NAND prices that were raised to 100%. DRAM prices were also raised by ~10-15% above estimates. This is a massive gross margin expansion for companies like $SNDK, Samsung, $MU, and SK Hynix. Fwd blended gross margins for $MU might actually be 77%+ from 68%... I just did napkin modeli… · 26 likes · 5,447 views
2026-01-25Holy crap. This just happened: "Samsung increases NAND prices by 100%" - ETNews Estimates were 33-38% Q/Q growth - Trendforce This is an absolute shock. It's called the "Memory Supercycle" for a reason with $MU, Samsung, and SK Hynix + $SNDK. In simpler terms: That extra 65% increase (from 35… · 1339 likes · 635,003 views
2026-01-23$INTC crashes 17% and finishes the day back at $45. Short dated options are down 95%+ with leaps down 40%+. Intel is the perfect example of “Stocks don’t move in a straight line up” (unless it’s $SNDK). And it’s still up 26% in 1M. If the fundamental thesis hasn’t changed (Long White House policy… · 340 likes · 54,821 views
2026-01-21Looks like markets are starting to find out about $VPG. This is my top robotics sector stock. And reminds me of $SNDK at $30 before current memory rally to $470. Or $SMCI at $1.3 before the AI buildout rally to $100. This may be the inflection point for robotics humanoids. https://t.co/POgwnIJyu… · 662 likes · 511,372 views
2026-01-21I normally don’t reply to disingenuous leading questions like this but I’m posting information synthesis on robotic supply chain stocks linked to Tesla Optimus. Unfortunately I try and discover alpha to find the next $30->$453 $SNDK at the start rather than bull posting the same known $SOFI, $ASTS,… · 38 likes · 3,479 views
2026-01-21$VPG is one of the least known robotic supply chain stocks. However, it's likely the single best asymmetrical exposure to robotics Humanoid ramp for - $TSLA Optimus ~ Figure AI as this $580m company makes: est. ~3-9% BOM cost of every humanoid. $8.5B revenue may come from $TSLA alone ($850 mid… · 437 likes · 254,464 views
2025-12-14Falling Knife or Dip Buy? What a brutal Friday for stocks after $ORCL and $AVGO earnings. Popular FinX names that dropped in just 1 day: $FRMI | -34.1% $SNDK | -15.89% $SEI | -15.3% $OKLO | -15.13% $MOD | -14.67% $ALAB | -14.31% $FLNC | -13.96% $LITE | -12.83% $GLXY | -11.73% $AAOI | -11.73% $AV… · 92 likes · 148,547 views
2025-11-25It’s hard for anyone in the AI space not to be bullish. Capex is ramping up. Exponentially. And flowing directly down to: Neoclouds: $CIFR, $NBIS, $WULF, $IREN, Connectivity: $ALAB, $CRDO, $CLS. Energy: $VST, $FLNC, $TE, $EOSe Semi/foundries: $NVDA, $AMD, $GOOGL, $TSM Memory: $SNDK, $MU, … · 278 likes · 119,311 views

Citrini Research coverage report library →

ReportDateStance
#124 — State of the Themes: June 20262026-06-01LONG

Every tracked holder of this name, sorted new → added → flat → trimmed. Shares = reported 13F share count; Value as reported (a few managers file values in $thousands). Generated 2026-07-20.