SharkWater Trading  •  Data Center Desk • Insider Filing Nebius Director's Trust Actually Sold 7,260 Shares Between $164.80 and $188.77, a 14.5 Percent Intraday Range, While Another Director Bought Under a Plan October 19, 2026 Bottom Line Up Front A Form 4 filed this morning (October 19, 2026) settles the question our October 16 post left open. Nebius (Nasdaq: NBIS) director John W. Boynton IV reported selling 7,260 shares on October 15 in 19 lots at weighted-average prices from $164.80 to $188.77. Desk math puts the blended price at $177.63 and gross proceeds near $1.29 million, about 4.5 percent under the $1.35 million the Form 144 estimated. The Form 144 implied $186.01. The real fills started lower and ended higher. A second director, Arne Grimme, bought 148 shares on each of October 15 and 16 at $169.99 under a plan adopted June 15, 2026. I have no verified cause for the October 15 range. What the Form 4 Shows Item Per Form 4 filed Oct 19, 2026 Seller John W. Boynton IV, Director (direct holding, signed by attorney-in-fact) Trade date October 15, 2026, code S (open market sale) Shares sold 7,260 across 19 weighted-average lots Lowest and highest lot price $164.80 (200 shares) and $188.77 (100 shares) Largest lot 960 shares at $188.20 Blended price (desk calc) $177.63 Gross proceeds (desk calc) $1,289,586 Direct shares after 403,522, down from 410,782 (1.8% of the position sold) 10b5-1 Affirmative checkbox marked. No footnote names a plan date. Source: SEC EDGAR Form 4, accession 0001513845-26-000132, filed 2026-10-19. Blended price, proceeds and percentages are desk calculations from filed lots, not a market quote. The Price Range Is the Story The lots are listed in rising price order, so the filing does not tell you the sequence of fills. It does tell you the stock traded across a $23.97 band, from $164.80 to $188.77, on a single session. That is a 14.5 percent spread from low to high. Our October 16 post flagged the Form 144 valuation of $186.01 as a possible 21 percent drop from the $235 print on September 29. The Form 4 says the stock was trading in the $165 to $189 zone on October 15, so the drop was real in the sense that sub-$190 prices printed. It still does not name a cause. I found no Nebius 8-K, 6-K or press release explaining it. Grimme’s purchases land inside the same zone. He bought 148 shares at $169.99 on October 15 and again on October 16, taking his direct holding from 5,885 to 6,181 shares. Footnote one says both were made under a Rule 10b5-1 trading plan adopted June 15, 2026. A matching price on two consecutive days is unusual. The filing does not explain it, and I will not guess at the mechanism. A plan seller is a boat on a trolling line. It keeps its speed whether the current runs fast or slow. The Form 4 is the log that finally shows how rough the water was while it passed. What the Two Directors Did Director Action Date Shares Price Plan Boynton Sold Oct 15 7,260 $164.80 to $188.77 10b5-1 flag set, no plan date in footnotes Grimme Bought Oct 15 148 $169.99 10b5-1, adopted Jun 15, 2026 Grimme Bought Oct 16 148 $169.99 10b5-1, adopted Jun 15, 2026 Source: SEC EDGAR Forms 4, accessions 0001513845-26-000132 (filed 2026-10-19) and 0001513845-26-000130 (filed 2026-10-16). The Form 144 filed 2026-10-15 (0001950047-26-010270) gave the 10b5-1 adoption date of 03/06/2026 for the Boynton sale. The Bull Case The sale is tiny. $1.29 million against roughly 238.4 million shares outstanding (Form 144 cover figure) is noise, and the plan predates the move by seven months. A director bought into the range. Grimme’s buys are small, about $25,000 a day at $169.99 (desk calc), but they ran two days straight at the low end of Boynton’s sale range. The position is intact. Boynton still holds 403,522 direct shares after the sale. The Bear Case A 14.5 percent intraday range with no filed cause. A wide range with no 8-K or 6-K behind it means the explanation sits somewhere other than EDGAR, and I have not found it. Insider paper keeps stacking. This follows the Nave plan sale, the October 1 withholding sales and the Goldman 13G/A cut covered earlier on this desk. Plan supply does not pause for price. 7,260 shares went out across a $165 to $189 session. The filing does not give the order of fills, so I cannot say whether the plan sold into weakness or strength. The SharkWater Take This is a pricing record, not a signal about the director. The sale is plan-driven and small, and I am not reading intent into it. What I wanted from the Form 4 was the real price, and I got it: NBIS traded from the mid-$160s to the high-$180s in one session. That volatility is the fact worth your time. Pull a live quote and an intraday chart from your broker, find the cause of the October 15 swing, and do not trade this filing. Until a cause shows up, I am taking no side on the stock. Tight lines, SharkWater Educational and informational purposes only. Not personalized investment advice. All figures sourced as noted and accurate as of publication. The author may hold positions in securities discussed. Do your own work.

SharkWater Trading  •  Market Desk • Weekend Brief The Chip Rout Ends the Week With No New Filings From the Eight Watchlist Names We Checked, Nasdaq Down 4.48 Percent, and Meta Reports Wednesday October 18, 2026 Bottom Line Up Front The Nasdaq Composite closed Friday at 26,140.03, down 4.48 percent on the week, and the SOXX chip ETF fell 4.14 percent on the day (TechStock² citing AP, press figures). The Cboe VIX printed 19.99, up from a 16.46 prior close (Cboe page, October 16, 2026). Today is Sunday, EDGAR takes no filings, and the eight filers we checked directly (NVDA, NBIS, MU, RKLB, ASTS, AVGO, OKLO, LUNR) show nothing newer than the last scan. The next hard catalyst is Meta's Q3 report after the close on Wednesday, October 21, confirmed on Meta's own investor site. What the Primary Sources Show Issuer Latest filing in EDGAR feed Filed Change since Oct 17 scan NVDA Accession 0002152188-26-000007 (form type not shown) 2026-10-13 None NBIS Form 144, 0001950047-26-010270 2026-10-15 None MU Forms 4 cluster, 0001242654-26-000016 and others 2026-10-15 None RKLB Form 4, 0002001011-26-000143 2026-10-02 None ASTS Form 4, 0001104659-26-104326 2026-09-01 None AVGO 0001104659-26-110983 (form type not shown) 2026-09-25 None OKLO Forms 424B5 and 8-K 2026-09-11 None LUNR Form 144, 0001968582-26-000989 2026-09-18 None Source: SEC EDGAR submissions feeds (data.sec.gov), read October 18, 2026. Where the feed omits form type, we say so rather than guess. A quiet filing tape after a hard Friday is information. The insiders who file on this watchlist did not add or dump anything over the weekend, which is what a closed regulator looks like. The next window opens with Monday morning Forms 4 and 144, and those will be the first filings written after Friday’s close. The Tape We Can Cite Measure Oct 16, 2026 Source Nasdaq Composite 26,140.03, -2.15% day, -4.48% week TechStock² citing AP (press) S&P 500 7,659.44, -1.09% day, -1.95% week TechStock² citing AP (press) SOXX -4.14% TechStock² (press) AMD / Intel / Micron / Broadcom -5.96% / -5.79% / -5.63% / -4.53% TechStock² citing AP (press) Cboe VIX 19.99, +3.53 (+21.45%), prior close 16.46 Cboe page, 8:15 PM, delayed 20+ min 10-year Treasury yield 5.09% TechStock² citing AP (press) Brent crude $109.86, +3.7% TechStock² citing AP (press) The TechStock² article is labeled AI-assisted. Its VIX figure of 20.16 differs from the Cboe page figure of 19.99, so we use Cboe. Only the VIX and Meta rows come from primary sources. A Friday gap with no weekend filings is a tide going out before anyone has checked the boats. You know the water moved. You do not yet know who was holding what. What Could Move It This Week Meta reports Q3 results after the close on October 21, with its call at 4:30 p.m. ET (Meta investor relations, release dated October 12, 2026). Meta fell 3.72 percent Friday in the sell-off per the press summary, and its capital spending guidance is the number the AI hardware names trade against. Tesla also reports that day per the same press summary, which we did not verify on Tesla’s site. The press summary also puts December rate-hike odds at 74.3 percent (CME data via AP), up from 50.2 percent a month earlier. That is not verified against CME directly. The Bull Case Friday was a flush, not a filing event. No insider dumping appeared in the eight feeds we read. The selling was macro, tied by AP to rates, oil and AI financing worries. The catalyst calendar is short and dated. Meta on Wednesday gives chip names a real data point instead of a rumor. The VIX is 19.99, not 35. A 21 percent one-day jump is sharp, but 19.99 is a level, not a panic print. The Bear Case The worst week since June. AP called it the worst week for both the S&P 500 and Nasdaq since June, per the press summary. Rates and oil are both pressing. A 5.09 percent 10-year and Brent near $110 hit the financing story that AI capex depends on. Monday brings a filing backlog. Forms 4 and 144 for trades made Thursday and Friday can post Monday morning, and a cluster of insider sales would land on a weak tape. The SharkWater Take I am taking no position off this tape. Nothing was filed, I have no verified quote on any watchlist name, and no options chain, so any trade idea would be invented. The disciplined read is to wait for Monday’s open and Monday’s filings, then see whether Meta on Wednesday confirms or breaks the AI-spend story. If the VIX holds near 20 and the chip complex stabilizes, Friday was a flush. If it climbs, the question changes. Tight lines, SharkWater Educational and informational purposes only. Not personalized investment advice. All figures sourced as noted and accurate as of publication. The author may hold positions in securities discussed. Do your own work.

SharkWater Trading  •  Semiconductor Desk • Insider Filing Micron's CEO Settled 235,666 Shares at $989.04 on Oct 13, and Micron Fell 5.6 Percent Friday in a Chip Rout October 17, 2026 Bottom Line Up Front Five Micron (Nasdaq: MU) officers filed Forms 4 on October 15, 2026 for October 13 vesting events, with tax withholding priced at $989.04 a share. CEO Sanjay Mehrotra settled 235,666 performance units and had 166,256 shares withheld for taxes, worth about $164.4 million at the withholding price (desk calc). Only one officer sold on the open market: Chief Legal Officer Michael Ray, who sold 6,328 shares on October 14 at prices from $914.13 to $947.29 under a plan adopted January 30, 2026. On Friday, October 16, AP reported Micron closed down 5.6 percent as the Cboe VIX jumped 21.45 percent to 19.99. The filings are mechanical. The drop is macro. What Was Filed Officer Role Shares withheld (code F) Direct shares after Accession Sanjay Mehrotra CEO, Director 166,256 355,146 (plus 607,075 in GRATs) 0001242654-26-000016 Mark Murphy CFO 50,343 183,308 0001498287-26-000001 Manish Bhatia President, COO 59,088 343,435 0001689498-26-000002 Scott DeBoer President, CTO 42,608 175,975 0001568238-26-000001 Michael Ray SVP, Chief Legal Officer 8,989 (plus 6,328 sold) 56,248 0001593199-26-000004 and -000005 Source: SEC EDGAR Forms 4 filed 2026-10-15, transaction date 2026-10-13 unless noted. Withholding totals are sums of the filed code F rows (desk calc). Code F is shares surrendered to cover taxes on vesting, not an open-market sale. The One Open-Market Seller Date Shares Price per share Basis Oct 13, 2026 n/a $989.04 Withholding price on vesting, all five Forms 4 Oct 14, 2026 6,288 in 27 trades $914.13 to $945.91 weighted averages Ray Form 4 (first of two) Oct 14, 2026 40 $947.29 Ray Form 4 (second of two) Source: Forms 4 0001593199-26-000004 and -000005. Rule 10b5-1 plan adopted January 30, 2026. Total proceeds are not stated in the filings. Desk bounds from the filed prices: roughly $5.8 million to $6.0 million. The sale prices sit about 4.2 to 7.6 percent below $989.04 (desk calc). Why It Matters The vesting is the cleanest piece. Mehrotra's three 2023 performance grants settled for 82,721, 82,721 and 70,224 shares, and 2024 grants were credited as earned at the end of year two but remain subject to vesting. The footnotes tie the payouts to Data Center SSD and HBM3E-plus goals, certified at 233 percent of target on the 2024 award, and to relative shareholder return, certified at 150 percent. I read the payout mechanics from the filing footnotes and did not independently verify the cap language. Withholding is not selling. Four of five officers kept every share the tax bill did not take. Ray is the exception, and his sale was scheduled months ago. The more useful number is the market context. AP reported the S&P 500 down 1.1 percent, the Nasdaq Composite down 2.1 percent, Micron down 5.6 percent and Broadcom down 4.5 percent on Friday, with chip stocks hit by doubts over how long AI spending lasts and by debt-financing fears as the 10-year yield sat at 5.09 percent. Those are press figures, not exchange data. I have not verified an MU price quote. A vesting statement is the ledger at the dock. It tells you what the trip earned, not what the weather is doing outside the harbor. Market context, Oct 16, 2026 Figure Source Cboe VIX 19.99, +3.53 (+21.45%), prior close 16.46 Cboe page, 8:15 PM, time zone unstated, delayed 20+ min S&P 500 -1.1% to 7,659.44 AP via BNN Bloomberg (press) Nasdaq Composite -2.1% to 26,140.03 AP via BNN Bloomberg (press) Micron / Broadcom -5.6% / -4.5% AP via BNN Bloomberg (press) 10-year Treasury yield 5.09% AP via BNN Bloomberg (press) Press figures are labeled as such and were not checked against exchange data. Only the VIX row comes from a primary source. The Bull Case The filings are mechanical. Code F rows are tax withholding. The only open-market sale came from one officer under a plan adopted January 30, 2026. The stake stays large. Mehrotra holds 355,146 shares directly and 607,075 through GRATs, about $951.7 million combined at $989.04 (desk calc, not a current value). Payouts follow business goals. The footnotes tie the 2024 awards to Data Center SSD and HBM3E-plus results, certified at 233 percent of target. The Bear Case The one seller sold below the vesting price. Ray's fills ran 4.2 to 7.6 percent under $989.04 a day later, and the stock fell again Friday. The drop has a macro engine. AP ties the rout to AI-financing worries and a 5.09 percent 10-year. Memory demand rides on customers who borrow to build. Volatility just reset. The VIX jumped from 16.46 to 19.99 in one session. A Monday gap would hit a stock this size hard either way. The SharkWater Take I am not trading these Forms 4. Four of five are tax paperwork and the fifth is a plan sale from January. The signal is Friday's tape, and it is a rates and financing story that happens to hit memory hard. If you own MU, the question is your own stop and your own sizing against a VIX near 20, which your broker's live chain answers better than I can from here. I have no quote, no options data and no catalyst on Micron itself, so I take no side on the stock until Monday's open shows whether Friday was a flush or the start of something. Tight lines, SharkWater Educational and informational purposes only. Not personalized investment advice. All figures sourced as noted and accurate as of publication. The author may hold positions in securities discussed. Do your own work.

SharkWater Trading  •  Data Center Desk • Insider Filing Nebius Director's Trust Files to Sell 7,260 Shares, and the Filing Itself Prices NBIS Near $186 October 16, 2026 Bottom Line Up Front A Form 144 filed October 15, 2026 shows The John W Boyton IV Trust of 2006, filing as a Nebius (Nasdaq: NBIS) director, plans to sell 7,260 shares on or about 10/15/2026 under a Rule 10b5-1 plan adopted 03/06/2026. The filing lists an aggregate market value of $1,350,432.60, which works out to about $186.01 a share (desk calc). The same trust sold 50 shares on 09/29/2026 at about $235.01, so the filing's own valuation sits roughly 21% below that print. The sale is routine plan selling. The price embedded in it is the story, and I have not verified an NBIS quote or the cause of any drop. What the Filing Says Item Per Form 144, filed Oct 15, 2026 Seller The John W Boyton IV Trust of 2006 (signed John W Boyton) Relationship to issuer Director Shares to be sold 7,260 common, via Morgan Stanley Smith Barney Aggregate market value $1,350,432.60 Implied price (desk calc) $186.01 ($1,350,432.60 / 7,260) Shares outstanding 238,400,165 (7,260 is about 0.003%) Plan Rule 10b5-1, adopted 03/06/2026 Acquired 01/03/2025, as restricted stock units from the issuer Source: SEC EDGAR Form 144, accession 0001950047-26-010270, filed 2026-10-15. Implied price and percentage figures are desk calculations from filed numbers, not a market quote. The filing does not state the date or basis of its market value. The Trust's Prior Sales Sale date Shares Gross proceeds Implied price (desk calc) 08/14/2026 5,296 $1,435,142.39 $270.99 09/15/2026 6,364 $1,338,720.86 $210.36 09/29/2026 50 $11,750.50 $235.01 Source: the same Form 144, past three months table. Implied prices are proceeds divided by shares. Sizes and cadence are consistent with a monthly plan; the September 29 sale is a 50 share top-up. Why It Matters Each sale in the table is the same plan doing the same job. The size is trivial next to 238.4 million shares. What stands out is the price line. The trust sold near $271 in August and near $235 on September 29. The new filing values the shares near $186, and the Oct 5 Nave sale and Oct 1 withholding sales we covered earlier printed around $234 to $236. That is a large gap in about ten days, and nothing in the filings explains it. Nebius has filed only this Form 144 since the October 13 Form 4. I found no 8-K, 6-K or press release dated October 14 or 15 tied to a drop, and a web search returned only undated aggregator pages, which I discarded. Whether the filer used a stale, intraday or closing reference is unknown. A plan seller is a tide table. The tide goes out on schedule whether the water is high or low. The useful information is how far down the beach the waterline sits today. The Bull Case It is small and scheduled. About $1.35 million against a market value near $44 billion (238,400,165 shares at the implied $186.01, desk calc) is noise, and the plan was adopted 03/06/2026, months before this print. Lower prices can pull plan sellers back. Some plans carry price floors. Sales continuing at a lower price would tell you nothing about conviction. The filing does not disclose any floor. A director still holds the stake. One trust selling 7,260 shares from a position built on RSUs is not a signal about the business. The Bear Case The price may have really dropped. If $186 is a true recent level, NBIS is down about 21% from the late September insider prints, with no filing to explain it. Insider paper keeps coming. Nave's 500,000 share plan sale on Oct 5, the Oct 1 withholding sales and now this trust all landed within about two weeks. Unexplained flow. Goldman's 13G/A cut on Oct 7 is still unexplained, and this adds another unexplained data point. The SharkWater Take This is not a signal about the director. It is a pricing breadcrumb. Do not trade the Form 144. If you hold or watch NBIS, pull a live quote and a chart from your broker today and find out whether $186 is real. If it is, the open question is the cause, and the filings so far do not give one. Until a quote and a cause show up, I am not taking a side on the stock. Tight lines, SharkWater Educational and informational purposes only. Not personalized investment advice. All figures sourced as noted and accurate as of publication. The author may hold positions in securities discussed. Do your own work.

SharkWater Trading  •  Semiconductor Desk • Press Release Nvidia's $250 Million UK Pledge Is Compute at Nvidia's Own Price, $50 Million a Year, With Terms Still Unsigned October 15, 2026 Bottom Line Up Front Nvidia (Nasdaq: NVDA) announced on October 13, 2026 that it will commit $250 million to UK agentic AI safety and security research over five years. The release says this is a compute donation, not cash, at $50 million per year, delivered through UK-based NVIDIA Cloud Partners. Nvidia sets the value, and the release does not say how. Provider selection, architecture and commercial terms are, in the release's own words, still to be agreed. This is a goodwill and ecosystem item, not a revenue line, and I have no verified NVDA price move to attach to it. What the Release Says Item Per the Oct 13, 2026 release Headline value $250 million Form Compute access, not cash Schedule Five years, $50 million per year Delivery UK-based NVIDIA Cloud Partners, UK-hosted Named recipients BOLD (Oxford-led), SOFAIR (UCL-led), Imperial College London, plus the wider UK research community Split "The majority" to the wider community, "a proportion" to the named labs. No dollar breakdown. Still open Provider selection, technical architecture, commercial terms Source: NVIDIA Newsroom press release, October 13, 2026 (nvidianews.nvidia.com). The release does not explain how the $250 million valuation was calculated. $50 million per year is $250 million divided by five years, per the release's stated schedule. The release also carries the standard forward-looking statement language. It says the timing and delivery of the compute are not guaranteed. Why It Matters A donation valued by the donor is worth whatever the donor says it is. The release gives no hourly rate, no GPU count and no hardware generation, so the $250 million cannot be checked against anything. That is not an accusation. It is the reason this number should not be read as spend. The delivery route is the part worth watching. Compute flows through NVIDIA Cloud Partners, which are the operators that buy and run Nvidia hardware. If the commercial terms between Nvidia and those partners include any payment or purchase commitment, that would be an order. If they do not, it is a promotional allocation. The release does not say which. Nothing here is in an SEC filing yet, and I found no 8-K tied to it. It is a marina handing out free slip time at its own posted rate. The headline number is real on the sign. Whether a boat ever pays for the slip is a different question. The Bull Case It seeds future demand. Researchers who build on Nvidia software and hardware tend to keep using it. UK labs named in the release now have five years of access. It lands with governments. The release carries statements from two UK ministers, which is useful for a company that sells into sovereign AI programs. It is small per year. At $50 million a year the commitment is modest in absolute terms, though the release gives no basis for what it costs Nvidia to provide. The Bear Case The value is self-assessed. No rate card, no GPU count, no hardware generation. The $250 million cannot be verified. The terms are unsigned. The release says provider selection, architecture and commercial terms are still to be agreed, and delivery is not guaranteed. Circularity. Nvidia funds usage on partner clouds that run Nvidia chips. Unless partners commit to new purchases, there is no incremental demand to count. The SharkWater Take I am not treating this as a catalyst. It is a press-release number with no rate behind it and no signed terms, and nothing in the release changes what Nvidia earns next quarter. The one thing that would change my mind is a filing or partner disclosure showing purchase commitments tied to the program. Until that appears, I file it under reputation, not revenue. Tight lines, SharkWater Educational and informational purposes only. Not personalized investment advice. All figures sourced as noted and accurate as of publication. The author may hold positions in securities discussed. Do your own work.