{"schema_version":"secwatch.filing_event.v1","accession":"0001641172-25-010372","form_type":"8-K","ticker":"PMTR","cik":"0002061473","company_name":"Perimeter Acquisition Corp. I","filed_at":"2025-05-14T23:59:59+00:00","discovered_at":"2026-05-14T18:02:50.810309+00:00","generated_at":"2026-05-21T10:55:01.114812+00:00","sec_items":["1.01","3.02","5.02","5.03","8.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Perimeter Acquisition Corp. I closes upsized $241.5M IPO; trust funded, board appointed","bullets":["IPO of 24.15M units at $10/unit, including full over-allotment exercise, gross proceeds $241.5M.","Concurrent private placement of 638,000 units to sponsor at $10/unit, raising $6.38M.","Total $241.5M placed in trust for initial business combination within 24 months.","Directors appointed: Richard Berthy, M. Scott Faris, Scott Letier, VAdm Sean Pybus (ret.), Jack Selby; Joseph Valdman resigned.","SPAC targets defense, national security, and technology sectors for business combination."],"urls":{"canonical":"https://secwatch.observer/filing/0001641172-25-010372","json":"https://secwatch.observer/filing/0001641172-25-010372.json","markdown":"https://secwatch.observer/filing/0001641172-25-010372.md","text":"https://secwatch.observer/filing/0001641172-25-010372.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/2061473/000164117225010372/0001641172-25-010372-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/2061473/000164117225010372/form8-k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-21T10:55:01.114812+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"04c96e3a88","claim":"Jack Selby was appointed as director at Perimeter Acquisition Corp. I.","evidence_excerpt":"On May 13, 2025, in connection with the IPO, Richard Berthy, M. Scott Faris, Scott Letier, Vice Admiral Sean Pybus (ret.) and Jack Selby were appointed to the board of directors of the Company (the “ Board ”).","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/2061473/000164117225010372/0001641172-25-010372-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"director"}],"fact_type":"executive_change"},{"claim_id":"ab325d40fb","claim":"Scott Letier was appointed as director at Perimeter Acquisition Corp. I.","evidence_excerpt":"On May 13, 2025, in connection with the IPO, Richard Berthy, M. Scott Faris, Scott Letier, Vice Admiral Sean Pybus (ret.) and Jack Selby were appointed to the board of directors of the Company (the “ Board ”).","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/2061473/000164117225010372/0001641172-25-010372-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"director"}],"fact_type":"executive_change"},{"claim_id":"bf274eaa85","claim":"Joseph Valdman resigned as director at Perimeter Acquisition Corp. I.","evidence_excerpt":"Effective May 13, 2025, Joseph Valdman resigned from the Board.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/2061473/000164117225010372/0001641172-25-010372-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"director"}],"fact_type":"executive_change"},{"claim_id":"ca1ee3be29","claim":"Vice Admiral Sean Pybus (ret.) was appointed as director at Perimeter Acquisition Corp. I.","evidence_excerpt":"On May 13, 2025, in connection with the IPO, Richard Berthy, M. Scott Faris, Scott Letier, Vice Admiral Sean Pybus (ret.) and Jack Selby were appointed to the board of directors of the Company (the “ Board ”).","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/2061473/000164117225010372/0001641172-25-010372-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"director"}],"fact_type":"executive_change"},{"claim_id":"db4a0d0a6d","claim":"M. Scott Faris was appointed as director at Perimeter Acquisition Corp. I.","evidence_excerpt":"On May 13, 2025, in connection with the IPO, Richard Berthy, M. Scott Faris, Scott Letier, Vice Admiral Sean Pybus (ret.) and Jack Selby were appointed to the board of directors of the Company (the “ Board ”).","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/2061473/000164117225010372/0001641172-25-010372-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"director"}],"fact_type":"executive_change"},{"claim_id":"e6c42094fd","claim":"Richard Berthy was appointed as director at Perimeter Acquisition Corp. I.","evidence_excerpt":"On May 13, 2025, in connection with the IPO, Richard Berthy, M. Scott Faris, Scott Letier, Vice Admiral Sean Pybus (ret.) and Jack Selby were appointed to the board of directors of the Company (the “ Board ”).","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/2061473/000164117225010372/0001641172-25-010372-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"director"}],"fact_type":"executive_change"},{"claim_id":"738bd2517a7f185c75d67c13386016b1e43fa73b","claim":"Perimeter Acquisition Corp. I: Adopted Amended and Restated Memorandum and Articles of Association (effective 2025-05-12).","evidence_excerpt":"On May 12, 2025, in connection with the IPO, the Company adopted its Amended and Restated Memorandum and Articles of Association (the “ Articles ”), effective the same day.","evidence_source":"SEC 8-K Item 5.03/5.05/5.06","evidence_url":"https://www.sec.gov/Archives/edgar/data/2061473/000164117225010372/0001641172-25-010372-index.htm","confidence":0.9,"family_label":"Governance Changes","details":[{"label":"Change","value":"charter amendment"},{"label":"Effective","value":"2025-05-12"}],"fact_type":"governance_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}