Most material SEC filings — August 19, 2026

ZeroStack Corp. (market cap ~$11.2M) announced a securities purchase agreement with Puple AI Inc. and Blockcat Pte. Ltd., whereby these investors contribute an aggregate of US$1.0 billion of MemeCore ($M) tokens (925,925,926 tokens valued at US$1.08 per token) in exchange for 3,500,000 common shares at US$25.19 per share plus pre-funded warrants to purchase up to 36,198,293 additional shares at US$0.0001 exercise price. Warrant shares are subject to 10-year lock-up and shareholder approval under Nasdaq Rule 5635. Share price represents a ~12x premium to recent trading price. Rudy Rong (Memecore principal) appointed President; employment agreement executed at US$500k base salary, 125k RSA grant, 24-month severance.

Star Equity Holdings agreed to acquire Harte Hanks for $5.00 per share in an all-stock/all-cash deal valued at $38.4 million aggregate equity value (approximately 100% premium to unaffected price). Shareholders may elect 50% cash ($19.2M cap) or 50% in Star Equity 10% Preferred Stock at $10.00 per-share liquidation preference (0.50 shares per HHS share). Deal signed August 14, 2026; 30-day go-shop period expires September 13, 2026; closing expected in 60–90 days subject to shareholder approval and financing.

On August 19, 2026, OSR Health received a Staff Delisting Determination from Nasdaq for failure to maintain the $1.00 minimum bid price requirement under Rule 5550(a)(2). The company has used both available 180-day compliance periods (originally notified September 5, 2025; final deadline August 31, 2026) without regaining compliance. Trading in OSRH and OSRHW will be suspended at market open August 26, 2026. The company intends to request a hearing before the Nasdaq Independent Hearings Panel, citing extraordinary trading activity on August 17–18 (370M and 145M shares traded respectively against an 18.5M public float) and a stock price that reached $0.84, only $0.16 short of the compliance threshold.

On June 23, 2026, Fortitude Mining Holdings, Inc. and HeartSciences Inc. entered into a definitive merger agreement whereby Fortitude's operating subsidiaries will become consolidated subsidiaries of HeartSciences in exchange for voting and economic shares, plus a $2,000 cash/Zcash contribution. Digital Currency Group (DCG), Fortitude's parent, will own approximately 95% of the combined company's voting interests post-closing on a fully diluted basis. The transaction is expected to close in H2 2026 and will be accounted for as a reverse acquisition with Fortitude as the accounting acquirer.

Plum Acquisition Corp. IV (public SPAC, $177M market cap) announced a proposed business combination with Controlled Thermal Resources Holdings Inc. (CTR), a private geothermal and critical minerals developer. CTR valued at $3.15B; pro forma enterprise value ~$3.3B. Transaction structure: $25M convertible, $100M PIPE at $10/share, $40M cash-in-trust, $418M project debt for Stage 1 power. CTR shareholders roll 100% equity; expected to own 90.4% pro forma. Stage 1: 50 MW power (FID Q2 2027, COD Q4 2028) and 25,000 TPA lithium (FID Q1 2028, COD Q4 2030) at Hell's Kitchen, Imperial County, CA. No definitive agreement yet; due diligence, board/shareholder approvals, regulatory approvals required.

Weave Communications agreed to be acquired by Willow Parent LLC (Francisco Partners affiliate) for $7.40 per share in cash, representing 80,013,701 shares outstanding. The transaction values Weave at ~$592M (80M shares × $7.40), slightly above current market cap of $532M. Closing expected by February 2027, subject to stockholder vote and regulatory approvals including HSR.

Mereo BioPharma Group plc (MREO) received a notice of delisting or failure to satisfy continued listing standards on 2026-08-18, filed on 2026-08-19. The specific delisting trigger and remediation timeline are not detailed in this filing excerpt. This represents a critical corporate governance event affecting the public company's exchange status.

Viking Acquisition Sponsor II, LLC issued a promissory note to Viking Acquisition Corp. II for $514,080 principal, due on the earlier of initial business combination consummation or company liquidation. The note bears no interest, is convertible at sponsor's option into post-combination units at $10 per unit, and is subordinated to the trust account established in the IPO. The sponsor waives all claims against the trust account.

Astrotech Corporation, through counsel Haynes and Boone, confirms its $50M at-the-market (ATM) offering program with H.C. Wainwright & Co., LLC (executed June 2, 2026; prospectus supplemented August 19, 2026). This is a continuous offering under an existing $200M Form S-3 registration. The company may issue common stock shares up to $50M aggregate price on a delayed basis. This represents approximately 495% of Astrotech's current $10.1M market capitalization.

On August 18, 2026, Datavault AI Inc. issued a $25,030,000 convertible promissory note to Streeterville Capital, LLC (net proceeds $25,000,000 after $30,000 transaction expenses). The note converts at $1.55/share, matures in 30 months, accrues 8% annual interest, and grants Streeterville broad conversion rights including at market price after specified dates. Company also issued 15,000,000 pre-delivery shares (4.99% dilution) and agreed to reserve 300,000,000 shares for potential conversions. Deal includes extensive anti-dilution protections, voting agreements from major shareholders to approve excess issuances beyond Nasdaq Rule 5635(d), and binding arbitration provisions favoring the lender.

SmartKem's board approved a 1-for-50 reverse stock split (effective August 20, 2026) to meet Nasdaq minimum bid price requirements for continued listing. Separately, on August 3, 2026, SmartKem entered a definitive business combination agreement with Ferrox Critical Minerals; the company will file a Form S-4 registration statement for stockholder approval. No specific valuation, share count post-split, or transaction financial terms are disclosed in this filing.

Clean Energy Technologies' subsidiary Herbert YF Global Holding Limited entered a consulting agreement (July 1, 2025) with Linkage International Limited to explore acquiring Ortus Climate Mitigation LLC's Italian operations. The deal structure requires a HKD 25M (~$3.2M) refundable deposit and HKD 5M consulting fee. Amendment No. 1 (November 17, 2025) secured the deposit refundability with 715,447 CETY common shares (purchased May 6, 2025 by the consultant and other Hong Kong investors) — if the deal fails, shares must be returned to CETY for cancellation.

On February 17, 2026, Auddia entered into a definitive merger agreement with Thramann Holdings LLC (which owns three pre-revenue AI/healthcare/energy companies: Voyex, Influence Healthcare, and LT350). Auddia shareholders will own ~20% of the combined entity post-close; Jeff Thramann will own ~80%, receiving convertible preferred stock and $3.5M non-convertible debt. Closing requires Auddia to have $12M+ net cash. Pro forma combined entity shows $17.98B in assets, $8.47B liabilities, $9.51B equity as of June 30, 2026. Thramann Holdings has $2.7B intangible assets (patents), is pre-revenue, posted $422K H1 2026 loss. Auddia advanced $920.7K bridge funding (via July 2026 promissory notes at 8% interest, max $1.4M across entities).

XCel Brands (public market cap ~$1.7M) executed an Equity Distribution Agreement dated August 18, 2026 with Maxim Group LLC authorizing the sale of up to $10,000,000 of common stock at market prices via an at-the-market offering under Form S-3 (File 333-276698). Maxim receives a 3% transaction fee on gross proceeds. The offering allows XCel to raise capital by instructing Maxim to sell shares on the Nasdaq Capital Market over time, with no guaranteed minimum sales. No shares have been sold under this agreement as of the filing date; this is an authorization document, not a completed transaction.

Duos divested its rail business (Duos Technologies, Inc.) on August 5, 2026, and sold its 5% stake in New APR Energy for ~$60M (received $50.4M cash, $10M holdback receivable), generating $53.2M gain. The company signed a 55 MW, 5-year agreement with Axe Compute valued at $500M+ in base payments (10 MW in Georgia already contracted separately for $111M), with Axe investing up to $140M for 49% equity ownership in a new JV. Duos raised $55M via registered direct offering in June. Q2 2026 revenue grew 30% YoY to $6.18M; cash rose to $112.3M; the company reaffirms 2026 revenue guidance of $50M+ with 25 MW deployment and positive adjusted EBITDA expansion.

10% owner WALTERS GROUP (ZNTL) bought 4.3M shares (~$15.2M) on the open market (20% of holdings). Open-market insider purchase — historically a bullish signal.

OptimumBank Holdings, Inc. issued $35,000,000 in aggregate principal amount of 7.50% Fixed-to-Floating Rate Subordinated Notes due September 1, 2036, dated August 19, 2026. Notes bear fixed 7.50% interest semi-annually through September 1, 2031, then floating at Three-Month Term SOFR plus 340 basis points quarterly thereafter. Notes are subordinated to all senior indebtedness and redeemable by the Company on or after September 1, 2031, or earlier upon Tier 2 Capital Event, Tax Event, or Investment Company Event, subject to Federal Reserve approval. UMB Bank, National Association serves as trustee.

Datavault AI (public market value ~$47.5M) agreed to acquire WDT LLC—parent of Wyoming-chartered depository BankWyse—via merger dated August 19, 2026. Consideration: $14.66M in public company stock (capped at 19.90% dilution) plus $7.34M cash at closing; two earn-out milestones potentially worth $5M each (50% stock, 50% cash) upon regulatory approval and $34M revenue threshold. Public Company commits $35M capital to BankWyse over 8 months. Closing conditions include Wyoming banking regulator approval and financing sufficiency. Transaction structured as reorganization under IRC §368(a)(1)(A).

EDAP TMS issued 1,263,750 ordinary shares (as ADSs) on August 11, 2026, through an underwriting agreement with TD Securities USA LLC and Mizuho Securities USA LLC. At the company's ~$61.8M market cap, this represents a substantial dilution event. The shares were delivered against full payment via BNP Paribas depository, with legal opinion confirming valid issuance under French law.

XCF Global, a Delaware corporation with ~$95.5M market value, filed a Form S-1 registration statement on August 18, 2026 to permit certain existing stockholders to resale up to 212,770,019 shares of Class A common stock ($0.0001 par value) at their discretion after effectiveness. This is a secondary offering by current shareholders, not a primary capital raise by the company. Legal counsel (Shumaker, Loop Kendrick, LLP) opined that the shares are duly authorized, validly issued, fully paid, and nonassessable.

Datavault AI reported Q2 2026 revenue of $6.7M (up 287% from $1.7M in Q2 2025) with gross profit of $2.9M. The company completed NYIAX acquisition and entered definitive agreement to acquire CyberCatch Holdings; reiterates full-year 2026 revenue target of at least $200M (≈400% YoY growth). Key partnerships include Fiserv (payments), IBM watsonx (AI), Available Infrastructure (edge computing), and plans to tokenize Project Qestrel (1,000 edge data centers across 100 U.S. cities, expected >$1B tokenized value). Leadership additions: Barry Childe (Chief Information Security Officer), Dean Becker (Chief Licensing Officer).

The filing presents standard boilerplate describing INBS's common stock (100M authorized shares at $0.01 par, one vote per share, no cumulative voting) listed on Nasdaq Capital Market under symbol INBS, plus three subsidiaries (98.96% ownership of Australian APAC entity, 100% of Delaware GBS Operations, 100% of UK Intelligent Fingerprinting). Critically, the independent auditor (UHY LLP) flagged in their August 19, 2026 report an 'explanatory paragraph regarding the Company's ability to continue as a going concern'—a red flag indicating material doubt about the company's viability.

SRX Global (market cap ~$9.1M) completed acquisition of EMJX, an AI-enabled digital-asset treasury platform, on June 16, 2026. Q3 ended June 30, 2026 with NAV of $62.9M ($3.22/share), exceeding preliminary estimate of $3.07/share. Balance sheet shows $36.7M cash, $65.2M current assets, $2.4M liabilities, zero debt. Company approved 10M share repurchase program and declared $0.05/share one-time dividend (~$1.3M aggregate). Net sales grew 27% YoY to $3.4M; adjusted EBITDA loss improved 35% YoY to $1.6M. Halo operations achieved 98% fill rates and record Prime Day performance.

CleanCore Solutions, Inc. announced a corporate name change to Zone Frontier Inc., effective August 31, 2026, with ticker symbol ZONE remaining unchanged on NYSE American. The rebrand reflects a strategic pivot from cleaning services to developing data center campuses for AI and technology companies. No shareholder action required; all existing stock certificates and positions remain valid.

Aurinia and subsidiary settled patent infringement litigation with Teva Pharmaceuticals over Teva's generic voclosporin 7.9 mg capsules. Under the settlement, Teva stipulated that Aurinia's U.S. Patents 10,286,036 and 11,622,991 (expiring December 2037) are valid and would be infringed; Teva may not launch generics before December 7, 2036, unless contingencies occur earlier. Aurinia continues patent litigation against seven other generic manufacturers (DifGen, Dr. Reddy's, Hikma, Lotus, Sandoz, Zydus, and affiliates) in the U.S. District Court for the District of New Jersey.

In January 2026, Jaguar entered a U.S. commercial licensing agreement with Future Pak (via Woodward Specialty) for exclusive marketing of Mytesi and Canalevia-CA1, recognizing $16M upfront plus $3M early termination fee and a $2M holdback (total ~$21M in Q1 2026). Q2 2026 total revenue fell 59% to $1.2M (vs. $3.0M in Q2 2025); prescription product revenue alone declined 60% to $1.2M. Net loss widened to $12.7M (Q2 2026) from $10.4M (Q2 2025), driven by $3.5M loss on debt extinguishment and $1.9M fair value loss on warrants/notes, though operating loss improved slightly ($7.6M vs. $8.0M) due to $2.5M cut in sales/marketing expenses.

Smartbird (formerly Allbirds) completed sale of footwear assets, installed new CEO Nadia Carlsten, and repositioned as managed AI infrastructure provider targeting enterprise customers needing dedicated compute. Company reports ~$200M available capital (cash, convertible facility, ATM) as of June 30, 2026, and emphasizes disciplined deployment toward customer-specific infrastructure rather than hyperscale competition.

Nocera hired Chuang Shun-Chih as CFO effective August 17, 2026, with base salary of $84,000/year and 100,000 annual shares (issued immediately and annually). Separately, Tseng Chien-Hua engaged as strategic advisor on AI/product strategy as independent contractor, receiving 100,000 shares in two tranches (50,000 on Aug 17, 2026; 50,000 on Aug 17, 2027 if services continue). Total commitment: 200,000 shares to two individuals, plus $84,000/year salary for CFO.

Datavault AI (market cap ~$47.5M) has executed binding agreements: (1) Scilex ($120M upfront for 30%–5% revenue share on quantum-edge network, uncapped long-term; later amended to $50M BTC purchase via Scilex); (2) HELMEX/Caprock ($2B in four $500M tranches of preferred stock at $1.55–$2.00/share, with 5% transaction fees per tranche, totaling up to $100M in fees); (3) AP Cyber/Available Infrastructure Master PO ($360K/site for SanQtum infrastructure across ~100 US cities, up to 1,000 units; $12M deposit alternative to PoC fee); (4) CyberCatch acquisition (49.9M Datavault shares at ~$3.73/share, ~$100M value, 7.52% post-deal dilution). Collectively these commitments total $2.4B+ in gross commitments and represent strategic pivots toward AI/quantum infrastructure and cybersecurity. Major execution risk remains high given capital intensity and unproven revenue.

On May 21, 2026, BiomX assigned to Mandragola Ltd. a $3.3M warrant exercise receivable (from Pyu Pyu Capital warrant exercises at $1.00/share for 3.3M shares). In exchange, Mandragola satisfied BiomX's $3M convertible promissory note by offset. The remaining $300K excess is credited dollar-for-dollar against Mandragola's $2M line-of-credit commitment to BiomX. No cash changed hands; all transactions settled by assignment and offset.

Silo Pharma acquired web-based software called 'Reputation Endpoints' from Parkview Consulting LLC on August 18, 2026, paying 165,000 shares of common stock (par value $0.0001/share). Parkview transferred all source code, object code, intellectual property, and related materials. The shares are subject to a 12-month lockup period. Parkview warranted the software is original, contains no malicious code, and does not infringe third-party rights.

For Q1 FY2027 (ended June 30, 2026), Virtuix reported revenues of $767.3K (down 26% YoY from $1.032M), net loss of $7.17M (vs. $2.31M prior year), and cash of $7.44M. The company identified a material weakness in internal controls over accounting for complex financing arrangements with Streeterville Capital, LLC, requiring restatement of prior-period financials. Total debt (notes payable + PPP arrangements) is ~$14.5M; accumulated deficit is $86.5M against total assets of $12.6M. The company has total stockholders' deficit of $(3.08M) as of June 30, 2026.

Datavault AI (market cap ~$47.5M) completed its acquisition of NYIAX, Inc., adding institutional-grade exchange technology, blockchain settlement infrastructure, and four issued U.S. patents protecting electronic trading of contract-based inventories. NYIAX, founded 2017, operates a contract management exchange and previously acquired Collective Audience (Aug 2025) for commercialization capabilities. The acquisition closes a licensing/marketing agreement that began March 2025; no specific purchase price, stock consideration, or cash figures are disclosed in the filing.

On August 17–19, 2026, 3i, LP converted 3,116,164 shares of Series C Preferred Stock at $0.39/share and then sold 2,770,592 common shares at prices ranging from $0.1269 to $0.1798. The conversions and sales total approximately $497K in conversion value and ~$398K in sale proceeds, representing a sharp price decline post-conversion. No other material terms or counterparty details are disclosed.

Redwood Capital Management LLC (via Ruben Kliksberg and affiliated entities) executed a Board Observation Rights Agreement dated June 17, 2026, granting one non-voting board observer seat so long as Redwood maintains ≥15% beneficial ownership of OPRT common shares. Concurrently, Redwood Funds sold 365,529 shares across August 6–18, 2026 at weighted average prices $18.80–$19.84 per share, generating ~$6.9M in gross proceeds. The observer has access to all board materials but no voting rights, fiduciary duties, or corporate opportunity rights; the company may exclude the observer from certain meetings (conflict of interest, privilege, confidentiality, competitive harm, fiduciary duties).

Chairman and CEO and COO Goh Kok E (CCHH) bought 5.2M shares (~$1.4M) on the open market (94% of holdings). Open-market insider purchase — historically a bullish signal.

Glimpse Group, Inc. (market cap ~$41M) announced on 08/19/2026 a complete corporate rebrand to Brightline Interactive effective immediately, with Nasdaq ticker changing from GGRP to BTLN. New leadership (CEO Tyler Gates, Board Chair Admiral Scott Swift) assumed control 06/01/2026 and divested non-core subsidiaries to focus exclusively on SpatialCore, a Physical AI interoperability platform. Management estimates identified government integration pipeline exceeds $100M but current capacity can address only ~$40M; first partnership announced with Swarmer (autonomous drone software); business model centers on integration revenue and consumption-based toll-booth model.

Director HONG ZHIWANG (ATXG) bought 219K shares (~$1.1M) on the open market (49% of holdings). Open-market insider purchase — historically a bullish signal.

Director ALFRED MICHAEL (BKKT) bought 297K shares (~$2.1M) on the open market (20% of holdings). Open-market insider purchase — historically a bullish signal.

On August 19, 2026, NOAA published TMC USA's consolidated application in the Federal Register for an exploration license and commercial recovery permit for the TMC USA-A area in the Clarion Clipperton Zone. The application covers approximately 65,000 km² (expanded from ~25,000 km²) with an estimated 619 million tonnes of wet polymetallic nodules plus 200 Mt exploration upside. This represents the first submission under NOAA's new consolidated application process; NOAA had certified full compliance on April 28, 2026, and review will continue through environmental assessment and final permitting determination.

Executive Chairman RADY ERNEST S (AAT) bought 64K shares (~$1.4M) on the open market (0.7% of holdings). Open-market insider purchase — historically a bullish signal.

Nordson reported Q3 FY2026 sales of $818M (up 10% YoY, organic +12%), diluted EPS of $2.73 (up 23%), and adjusted EPS of $3.25 (up 19%), all quarterly records. Backlog increased 35% YoY. The company raised full-year FY2026 guidance to $3,035–$3,075M sales (from prior range) and $11.80–$12.00 adjusted EPS per diluted share, expecting to exceed $3B in annual revenue.

On August 12, 2026, Fortitude Mining Holdings purchased 411,522 shares of HeartSciences common stock for $1,000,000 at $2.43/share, a 22% premium to market closing price. Following this investment, Fortitude holds ~9.4% of HeartSciences outstanding shares. Notably, the merger exchange ratio remains unchanged and Fortitude receives no additional consideration for this premium investment, which is intended to strengthen HeartSciences' balance sheet before the expected H2 2026 merger closing.

10% owner DART KENNETH BRYAN (FLUT) bought 86K shares (~$8.4M) on the open market (0.4% of holdings). Open-market insider purchase — historically a bullish signal.

Beam Global reported Q2 2026 revenue of $8.6 million, up 174% sequentially from Q1's $3.1 million (and 21% year-over-year from Q2 2025's $7.1 million). Gross margin was 17.8% GAAP (26.2% excluding non-cash items). The company posted a net loss of $3.1 million ($0.14 per share) versus $4.3 million loss ($0.28 per share) in Q2 2025. European operations now represent ~48% of revenues. Key operational highlights: $5.4 million backlog as of June 30, 2026; $0.5M in new drone/robotics battery orders; relocation to Yuma, Arizona expected to save $2.7 million over lease term; no debt and $100 million unused credit line. Company maintains 22.3 million shares outstanding (up from 19.1 million at year-end 2025).

Estée Lauder reported fiscal 2026 net sales of $15.05 billion (+5% reported, +3% organic) and adjusted operating income of $1.687 billion (11.2% margin, +320bp YoY). The company's Profit Recovery and Growth Plan delivered $1.2 billion gross benefits and reduced 10,000 positions. For FY2027, ELC raised adjusted operating margin guidance to 12.7%-13.5% (from prior 12.5%-13.0%) while maintaining organic sales growth outlook of 3%-5%, and raised adjusted EPS guidance to $3.10-$3.35 (+24-34% vs. $2.51 in FY2026).

Intelligent Bio Solutions reported fiscal 2026 (year ended June 30, 2026) revenue of $4.215M (+38% YoY from $3.053M), driven by 22% growth in reader installed base (1,886 units) and 35% growth in consumable cartridges (106,500 units). Gross profit jumped 64% to $2.050M with margin expanding 778 basis points to 48.63%, attributed to manufacturing transition to Syrma Johari and product mix optimization. The company completed FDA 510(k) clinical data collection and remains on track for H2 2026 submission targeting U.S. drug screening market entry; active customers reached 502 and a strategic partnership with Bouygues UK was secured.

Trio-Tech International announced approval to list on Nasdaq Global Market effective September 16, 2026, moving from NYSE MKT under ticker TRT. The company expects the listing to enhance visibility among institutional investors and broaden market participation. No financial metrics, counterparties, or dollar amounts disclosed in the announcement.