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Sienna Resources Inc. — Investor Relations & Filings

Ticker · SIEN ISIN · CA82621E2050 LEI · 549300CLIC7UYW8X4J70 TSXV Mining and quarrying
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Filings indexed 197 across all filing types
Latest filing 2026-04-10 Share Issue/Capital Cha…
Country CA Canada
Listing TSXV SIEN

About Sienna Resources Inc.

https://www.siennaresources.com/

Sienna Resources Inc. is an exploration-stage company focused on acquiring and developing high-grade mineral deposits in politically stable and environmentally responsible jurisdictions. The company's portfolio emphasizes energy metals critical for rechargeable batteries, including uranium, lithium, cesium, and spodumene. Key assets include several uranium projects in the Athabasca Basin, Saskatchewan, situated adjacent to properties held by major industry operators. Sienna also holds lithium brine projects in Nevada and the Case Lake West Cesium and Spodumene Pegmatite Project, alongside the Stonesthrow Gold Project.

Recent filings

Filing Released Lang Actions
Material change report - English.pdf
Share Issue/Capital Change Classification · 77% confidence The document is a Canadian NI 51-102F3 “Material Change Report” announcing the grant of 1.475 million stock options and 3.05 million RSUs. This constitutes an issuance of equity-related instruments under the company’s omnibus plan, i.e., a capital/share change. There is no indication of a dividend, management change, or buyback. The correct classification is “Share Issue/Capital Change” (SHA).
2026-04-10 English
Material change report - English.pdf
Regulatory Filings Classification · 78% confidence The document is a Canadian NI 51-102F3 “Material Change Report” disclosing a corporate material change (stock option and RSU grants) as required by securities regulators. It is neither an annual/quarterly report nor a proxy, call transcript, or M&A announcement. This falls into the general regulatory filings catch-all category.
2026-04-10 English
Material change report - English.pdf
Regulatory Filings Classification · 95% confidence The document is a 'Material Change Report' (Form 51-102F3) filed by Sienna Resources Inc. in accordance with Canadian securities regulations. It details a specific material event—the entry into a joint venture agreement for lithium exploration. While it includes a news release, the primary document is a formal regulatory filing reporting a material change in the company's business operations. This fits best under the 'Regulatory Filings' category as it is a formal statutory disclosure document.
2026-02-06 English
News release - English.pdf
Capital/Financing Update Classification · 95% confidence The document is a press release announcing a new joint venture agreement between Sienna Resources Inc., Cruz Battery Metals Corp., and Adelayde Exploration Inc. to explore lithium brine potential. It details the terms of the agreement, provides management commentary, and includes standard corporate contact and forward-looking statement disclosures. While it mentions a joint venture, it is a general corporate announcement of a business development activity rather than a specific M&A takeover bid or a regulatory filing of a formal contract. Given the nature of the announcement regarding business operations and strategic partnerships, it falls under the 'Regulatory Filings' (RNS) category as a general corporate announcement.
2026-01-28 English
News release - English.pdf
Regulatory Filings Classification · 95% confidence The document is a press release issued by Sienna Resources Inc. regarding the commencement of operations on its lithium projects in Nevada. It discusses operational plans, market conditions, and management commentary. It does not fit into specific financial reporting categories like 10-K, IR, or ER, nor is it a report publication announcement (RPA) as it is the primary news release itself. As it is a general corporate announcement regarding business operations that does not fall into the other specialized categories, it is classified as a Regulatory Filing (RNS).
2026-01-13 English
52-109FV2 - Certification of interim filings - CFO (E).pdf
Regulatory Filings Classification · 100% confidence The document is a 'Form 52-109FV2 Certification of Interim Filings', which is an officer certification/attestation document. According to the 'CERTIFICATION RULE', documents that are primarily officer certifications or attestations, even if they reference a specific report type (like interim filings), should be classified as Regulatory Filings (RNS) rather than the report itself, as they do not contain the actual financial statements or data. 9M 2025
2025-11-26 English

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