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Form 8-K Castellum, Inc. For: Oct 12

Tue, 13 Oct 2026 16:14:00 -0400

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Canterra Minerals Expands Lundberg Indicated Mineral Resource by 55% to 26.1 Mt at the Buchans Project in Newfoundland

Tue, 06 Oct 2026 07:00:00 -0400

“This update confirms the Lundberg Deposit as a large, pit-constrained copper-zinc resource in one of Newfoundland’s most prolific mining districts and a cornerstone for development of the Buchans District, including Canterra’s other hub-and-spoke deposits.” – Chris Pennimpede, President and CEO

Highlights – 2026 Lundberg Mineral Resource Estimate (effective September 2, 2026)

55% increase in Indicated tonnage. The Lundberg Deposit now hosts 26.1 million tonnes (Mt) in the Indicated category, compared with 16.8 Mt in the 2019 estimate, reflecting 4,779 m of drilling completed since acquiring the project in 2024 together with an optimized

Canterra Minerals Expands Lundberg Indicated Mineral Resource by 55% to 26.1 Mt at the Buchans Project in Newfoundland

Tue, 06 Oct 2026 07:00:00 -0400

Highlights – 2026 Lundberg Mineral Resource Estimate (effective September 2, 2026)

55% increase in Indicated tonnage. The Lundberg Deposit now hosts 26.1 million tonnes (Mt) in the Indicated category, compared with 16.8 Mt in the 2019 estimate, reflecting 4,779 m of drilling completed since acquiring the project in 2024 together with an optimized

Canterra Minerals Expands Lundberg Indicated Mineral Resource by 55% to 26.1 Mt at the Buchans Project in Newfoundland

Tue, 06 Oct 2026 07:00:00 -0400

Highlights – 2026 Lundberg Mineral Resource Estimate (effective September 2, 2026)

55% increase in Indicated tonnage. The Lundberg Deposit now hosts 26.1 million tonnes (Mt) in the Indicated category, compared with 16.8 Mt in the 2019 estimate, reflecting 4,779 m of drilling completed since acquiring the project in 2024 together with an optimized

Canterra Minerals Expands Lundberg Indicated Mineral Resource by 55% to 26.1 Mt at the Buchans Project in Newfoundland

Tue, 06 Oct 2026 07:00:00 -0400

Highlights – 2026 Lundberg Mineral Resource Estimate (effective September 2, 2026)

55% increase in Indicated tonnage. The Lundberg Deposit now hosts 26.1 million tonnes (Mt) in the Indicated category, compared with 16.8 Mt in the 2019 estimate, reflecting 4,779 m of drilling completed since acquiring the project in 2024 together with an optimized

Form 4 Castellum, Inc. For: Oct 01 Filed by: MARTIN TAMMY L

Thu, 01 Oct 2026 16:10:00 -0400

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Form 4 Castellum, Inc. For: Oct 01 Filed by: Merriman Andrew

Thu, 01 Oct 2026 16:09:00 -0400

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Form 4 Castellum, Inc. For: Oct 01 Filed by: Bell David T

Thu, 01 Oct 2026 16:09:00 -0400

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Form 4 Castellum, Inc. For: Oct 01 Filed by: Ives Glen R

Thu, 01 Oct 2026 16:08:00 -0400

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Canterra Minerals to Participate in the Gentile Mining Investor Forum in London

Fri, 18 Sep 2026 11:54:00 -0400

VANCOUVER, British Columbia, Sept. 18, 2026 (GLOBE NEWSWIRE) -- Canterra Minerals Corporation (TSXV: CTM) (OTCQB: CTMCF) (FSE: DXZB) (“Canterra” or the “Company”) today announced its participation in the inaugural Gentile Mining Investor Forum (the “Forum”), a full-day investor conference in London on Monday, October 19, 2026, at 116 Pall Mall in Mayfair. The program is presented by strategic junior mining investor Michael Gentile in partnership with Amvest Capital Inc. (“Amvest Capital”) and made possible by the generous support of Flagship Sponsors ATB Cormark Capital Markets, Beacon Securities Limited, and STIFEL.

“I created this program to

Canterra Minerals to Participate in the Gentile Mining Investor Forum in London

Fri, 18 Sep 2026 11:54:00 -0400

VANCOUVER, British Columbia, Sept. 18, 2026 (GLOBE NEWSWIRE) -- Canterra Minerals Corporation (TSXV: CTM) (OTCQB: CTMCF) (FSE: DXZB) (“Canterra” or the “Company”) today announced its participation in the inaugural Gentile Mining Investor Forum (the “Forum”), a full-day investor conference in London on Monday, October 19, 2026, at 116 Pall Mall in Mayfair. The program is presented by strategic junior mining investor Michael Gentile in partnership with Amvest Capital Inc. (“Amvest Capital”) and made possible by the generous support of Flagship Sponsors ATB Cormark Capital Markets, Beacon Securities Limited, and STIFEL.

“I created this program to

Canterra Minerals to Participate in the Gentile Mining Investor Forum in London

Fri, 18 Sep 2026 11:54:00 -0400

VANCOUVER, British Columbia, Sept. 18, 2026 (GLOBE NEWSWIRE) -- Canterra Minerals Corporation (TSXV: CTM) (OTCQB: CTMCF) (FSE: DXZB) (“Canterra” or the “Company”) today announced its participation in the inaugural Gentile Mining Investor Forum (the “Forum”), a full-day investor conference in London on Monday, October 19, 2026, at 116 Pall Mall in Mayfair. The program is presented by strategic junior mining investor Michael Gentile in partnership with Amvest Capital Inc. (“Amvest Capital”) and made possible by the generous support of Flagship Sponsors ATB Cormark Capital Markets, Beacon Securities Limited, and STIFEL.

“I created this program to

Canterra Minerals to Participate in the Gentile Mining Investor Forum in London

Fri, 18 Sep 2026 11:54:00 -0400

VANCOUVER, British Columbia, Sept. 18, 2026 (GLOBE NEWSWIRE) -- Canterra Minerals Corporation (TSXV: CTM) (OTCQB: CTMCF) (FSE: DXZB) (“Canterra” or the “Company”) today announced its participation in the inaugural Gentile Mining Investor Forum (the “Forum”), a full-day investor conference in London on Monday, October 19, 2026, at 116 Pall Mall in Mayfair. The program is presented by strategic junior mining investor Michael Gentile in partnership with Amvest Capital Inc. (“Amvest Capital”) and made possible by the generous support of Flagship Sponsors ATB Cormark Capital Markets, Beacon Securities Limited, and STIFEL.

“I created this program to

Form 4 Castellum, Inc. For: Sep 09 Filed by: Merriman Andrew

Wed, 09 Sep 2026 16:03:00 -0400
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Form 8-K Castellum, Inc. For: Sep 09

Wed, 09 Sep 2026 16:02:00 -0400
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Canterra Minerals Intersects 144m of 0.75% CuEq, Including 76m of 1.00% CuEq at Lundberg Deposit, Newfoundland

Wed, 09 Sep 2026 06:50:00 -0400

Buchans Summer Drill Program Highlights:

Lundberg Deposit - Broad Near-Surface Stockwork Intercept: Hole H-26-3568 returned 144.0m of 0.75% CuEq from 64.0m (0.26% Cu, 1.32% Zn, 0.73% Pb, 2.6 g/t Ag and 0.04 g/t Au), including 76.0m of 1.00% CuEq and 18.0m of 1.56% CuEq (0.38% Cu, 3.21% Zn, 1.85% Pb, 5.84 g/t Ag and 0.073 g/t Au) at the top of the interval.¹² The vertical infill hole was drilled between historical holes H-0175, H-0022 and H-0072 (incomplete historical assays) and demonstrates continuity of mineralization through a broad interval of the Lundberg stockwork system.
Buchans Summer Drill Program Highlights:

Lundberg Deposit - Broad Near-Surface Stockwork Intercept: Hole H-26-3568 returned 144.0m of 0.75% CuEq from 64.0m (0.26% Cu, 1.32% Zn, 0.73% Pb, 2.6 g/t Ag and 0.04 g/t Au), including 76.0m of 1.00% CuEq and 18.0m of 1.56% CuEq (0.38% Cu, 3.21% Zn, 1.85% Pb, 5.84 g/t Ag and 0.073 g/t Au) at the top of the interval.¹² The vertical infill hole was drilled between historical holes H-0175, H-0022 and H-0072 (incomplete historical assays) and demonstrates continuity of mineralization through a broad interval of the Lundberg stockwork system.
click here.

Form 10-Q Castellum, Inc. For: Jun 30

Thu, 06 Aug 2026 16:10:00 -0400
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Form 10-Q Castellum, Inc. For: Jun 30

Thu, 06 Aug 2026 16:10:00 -0400
si-local-file:///var/storage/secattach/20260806/26883922.html

Form 8-K Castellum, Inc. For: Jul 31

Fri, 31 Jul 2026 16:01:00 -0400
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Form 8-K Castellum, Inc. For: Jul 31

Fri, 31 Jul 2026 16:01:00 -0400
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