Welcome to our dedicated page for Solarwindow Tech SEC filings (Ticker: WNDW), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
SolarWindow Technologies, Inc. filings document the public-company disclosures of a Nevada issuer developing transparent electricity-generating coatings for glass and plastics. Its registration statements and amendments describe securities-offering mechanics, capital structure, business and technology disclosures, risk factors, and the company’s status as an issuer with no securities registered under Section 12(b).
SolarWindow’s Form 8-K filings record Regulation FD communications, shareholder-letter disclosures, board appointments, governance matters, and other material-event reporting related to its commercialization plans and corporate oversight.
SolarWindow Technologies, Inc., a pre-revenue developer of semi-transparent electricity‑generating LiquidElectricity® coatings, reported continued operating losses for the quarter and nine months ended May 31, 2026. Revenue remained $0, while operating expenses rose modestly.
For the quarter, the company recorded a net loss attributable to common stockholders of $696,406; for the nine months, the loss was $1,856,583. Selling, general and administrative expenses increased to $552,995 for the quarter and $1,470,643 year‑to‑date, driven mainly by higher personnel and professional fees, while research and development expenses were $174,013 for the quarter and $493,500 year‑to‑date.
Cash decreased to $4,789,312 at May 31, 2026, from $6,555,642 at August 31, 2025, and working capital was $4,533,771. Net cash used in operating activities was $1,734,980 for the nine months. Management believes existing cash should fund operations for the twelve months following report issuance but also states that additional capital will be required to commercialize its technologies and that failure to raise funds could jeopardize its ability to continue as a going concern.
SolarWindow Technologies, Inc. filed a pre-effective amendment to a Form S-1 to register up to 25,161,292 shares of common stock for resale by existing investors. These Resale Shares stem from June 16, 2025 private placements that included warrants exercisable at $0.47 per share.
The company will not receive proceeds from stockholder resales but could receive up to $5,912,904 if all warrants are exercised for cash, which it plans to use for general working capital. SolarWindow is a pre-revenue developer of transparent electricity-generating LiquidElectricity® coatings and reported cash of $5.39 million and working capital of $5.23 million as of February 28, 2026, alongside continuing net losses.
SolarWindow Technologies, Inc. reported another pre-revenue quarter as it continues developing its LiquidElectricity® electricity-generating coatings. For the three months ended February 28, 2026, the company recorded a net loss of $589,420, slightly improved from $654,087 a year earlier, driven mainly by reduced stock-based compensation.
For the six-month period, the net loss was $1,160,176 versus $1,206,150 in the prior year, with operating expenses of $1,237,134 split between selling, general and administrative costs and research and development. The company had $5,391,821 in cash and working capital of $5,226,000 as of February 28, 2026, and no debt.
Management believes existing cash should fund operations for the next twelve months following issuance of this report but acknowledges ongoing negative cash flows and expects to seek additional equity or strategic financing to commercialize its SolarWindow® coatings developed under research agreements, including a long-running Cooperative Research and Development Agreement with the National Laboratory of the Rockies.
SolarWindow Technologies, Inc. filed a post-effective amendment to its Form S-1 to register up to 1,583,000 Resale Shares issuable upon exercise of outstanding, vested stock purchase options. The company states it will not receive proceeds from resale transactions but may receive proceeds if options are exercised for cash.
The prospectus lists 65,779,045 shares outstanding as of the prospectus date and describes resale mechanics, a fixed $6.21 sale price while quoted on the OTCID, and a transition to variable pricing if listed on a national exchange or quoted on OTCQB/OTCQX.
SolarWindow Technologies, Inc. has filed a pre‑effective amendment to its Form S‑1 registering up to 25,161,292 shares of common stock for resale by selling stockholders. These Resale Shares include 12,580,646 already‑issued shares and 12,580,646 shares issuable upon exercise of outstanding warrants.
The company will not receive proceeds from stockholder resales but could receive up to $5,912,904 if all warrants are exercised for cash at $0.47 per share. SolarWindow remains a pre‑revenue developer of transparent electricity‑generating coatings, reporting net losses and highlighting substantial risks typical of early‑stage alternative energy ventures.
SolarWindow Technologies reported another pre-revenue quarter, posting a net loss of $570,758 for the three months ended November 30, 2025, compared with a loss of $552,063 a year earlier. The loss reflects ongoing spending on selling, general and administrative costs of $464,338 and research and development of $148,851 as the company continues developing its LiquidElectricity® Coatings.
Cash and cash equivalents were $5,898,000 as of November 30, 2025, down from $6,555,642 at August 31, 2025, after operating cash outflows of $627,778 and capital spending of $29,864. The balance sheet shows total assets of $6,124,855 and stockholders’ equity of $5,880,321, with no debt and 65,779,045 common shares outstanding.
SolarWindow Technologies, Inc. reported that on December 8, 2025 it released a press announcement titled “SolarWindow Issues 2025 Year-End Shareholder Letter and 2026 Outlook.” The company furnished this information under Regulation FD, which is intended to provide fair and simultaneous disclosure of material information to all investors. The press release is included as an exhibit to the report, along with the related interactive data cover page.
SolarWindow Technologies, Inc. (WNDW) reported that its Board of Directors appointed Francisco Javier Bono Perez as a director effective November 20, 2025. He brings nearly 25 years of experience across glass-related industries, including senior international development roles at Landvac Ti-Vacuum Insulated Glazing and LandGlass Technology, and prior CEO experience at Suministros Aries in Spain. He holds a mechanical engineering degree, an Executive MBA, and additional executive education credentials.
Through his wholly owned entities Silica Holding B.V. and Silica Ventures, S.L., Mr. Bono previously subscribed in June 2025 to 3,225,806 units of SolarWindow securities for $1,000,000, each unit consisting of one common share and one warrant with a $0.47 exercise price, representing a 9.35% beneficial interest in the company’s common stock. He has waived all compensation as a board member, and the company states there are no family relationships, related-party transactions requiring disclosure, or appointment arrangements with other persons. An Offer Letter and a press release titled “Tech Investor and Glass Innovator Joins SolarWindow Board of Directors” are filed as exhibits.
SolarWindow Technologies (WNDW) filed its FY2025 annual report, highlighting continued development of its LiquidElectricity coatings that turn glass and plastics into power‑generating surfaces. The company remains pre‑revenue and conducts R&D under a CRADA with NREL. Management reports technical milestones from 2022–2024, including fully‑solution processable coatings, semi‑transparent modules for potential agrivoltaic use, scaling on larger substrates with higher efficiency, and a new laser scribing method to improve module appearance.
For the year ended August 31, 2025, net loss was $2,180,576 (vs. $3,455,415 in 2024). As of August 31, 2025, cash was $6,555,642 and working capital was $6,407,990; management believes this supports projected development goals over the next twelve months. The company reports $44,159,600 of U.S. NOLs, subject to limitations. As of November 10, 2025, 65,779,045 common shares were outstanding; the aggregate market value of non‑affiliate holdings was $5,517,000 as of February 28, 2025. The IP portfolio includes 14 U.S. and 21 non‑U.S. granted patents, plus pending applications, with expirations between 2031 and 2040.