{"cik":1526119,"company":{"entity_status":null,"filings":[{"accession":"0001104659-26-115880","document":"tm2627537d6_8k.htm","filed":"2026-10-14","form":"8-K","items":"8.01,9.01","report_date":"2026-10-14"},{"accession":"0001104659-26-115687","document":"tm2627537d4_8k.htm","filed":"2026-10-14","form":"8-K","items":"2.02,5.02,7.01,8.01,9.01","report_date":"2026-10-12"},{"accession":"0001104659-26-113362","document":"xslF345X06/tm2626963-2_4seq1.xml","filed":"2026-10-02","form":"4","items":"","report_date":"2026-09-30"},{"accession":"0001104659-26-113361","document":"xslF345X06/tm2626963-1_4seq1.xml","filed":"2026-10-02","form":"4","items":"","report_date":"2026-09-30"},{"accession":"0001104659-26-110070","document":"xslF345X06/tm2626005-1_4seq1.xml","filed":"2026-09-23","form":"4","items":"","report_date":"2026-09-21"},{"accession":"0001104659-26-092216","document":"tm2622452d1_8k.htm","filed":"2026-08-07","form":"8-K","items":"1.01,2.03,7.01,9.01","report_date":"2026-08-06"},{"accession":"0001104659-26-092058","document":"tm2622452d2_8k.htm","filed":"2026-08-06","form":"8-K","items":"2.02,9.01","report_date":"2026-08-06"},{"accession":"0001104659-26-092007","document":"vstm-20260630x10q.htm","filed":"2026-08-06","form":"10-Q","items":"","report_date":"2026-06-30"},{"accession":"0001104659-26-091172","document":"xslF345X06/tm2622308-1_4seq1.xml","filed":"2026-08-05","form":"4","items":"","report_date":"2026-08-03"},{"accession":"0001104659-26-077333","document":"xslF345X06/tm2618883-2_4seq1.xml","filed":"2026-06-24","form":"4","items":"","report_date":"2026-06-22"},{"accession":"0001104659-26-077332","document":"xslF345X06/tm2618883-1_4seq1.xml","filed":"2026-06-24","form":"4","items":"","report_date":"2026-06-22"},{"accession":"0001104659-26-076809","document":"tm2618546d1_8k.htm","filed":"2026-06-23","form":"8-K","items":"7.01,8.01,9.01","report_date":"2026-06-23"},{"accession":"0001104659-26-074915","document":"tm2618108d1_8k.htm","filed":"2026-06-17","form":"8-K","items":"7.01,8.01,9.01","report_date":"2026-06-16"},{"accession":"0001104659-26-067048","document":"xslF345X06/tm2615478-6_4seq1.xml","filed":"2026-05-27","form":"4","items":"","report_date":"2026-05-21"},{"accession":"0001104659-26-066428","document":"xslF345X06/tm2615478-3_4seq1.xml","filed":"2026-05-26","form":"4","items":"","report_date":"2026-05-21"},{"accession":"0001104659-26-066026","document":"vstm-20260521x8k.htm","filed":"2026-05-26","form":"8-K","items":"5.07","report_date":"2026-05-21"},{"accession":"0001104659-26-057126","document":"tm2613842d1_8k.htm","filed":"2026-05-07","form":"8-K","items":"7.01,9.01","report_date":"2026-05-07"},{"accession":"0001104659-26-057114","document":"vstm-20260331x10q.htm","filed":"2026-05-07","form":"10-Q","items":"","report_date":"2026-03-31"},{"accession":"0001104659-26-041506","document":"vstm-20260521xdef14a.htm","filed":"2026-04-09","form":"DEF 14A","items":"","report_date":"2026-05-21"},{"accession":"0001104659-26-023462","document":"tm267866d1_8k.htm","filed":"2026-03-04","form":"8-K","items":"7.01,9.01","report_date":"2026-03-04"},{"accession":"0001104659-26-023444","document":"vstm-20251231x10k.htm","filed":"2026-03-04","form":"10-K","items":"","report_date":"2025-12-31"},{"accession":"0001104659-26-010036","document":"tm265057d1_8k.htm","filed":"2026-02-04","form":"8-K","items":"2.02,7.01,9.01","report_date":"2026-02-04"},{"accession":"0001104659-26-002135","document":"tm262531d1_8k.htm","filed":"2026-01-08","form":"8-K","items":"7.01,9.01","report_date":"2026-01-08"},{"accession":"0001104659-25-125309","document":"tm2534532d1_8k.htm","filed":"2025-12-31","form":"8-K","items":"7.01,8.01,9.01","report_date":"2025-12-29"},{"accession":"0001104659-25-123295","document":"tm2533463d1_8k.htm","filed":"2025-12-19","form":"8-K","items":"5.02,7.01,9.01","report_date":"2025-12-15"},{"accession":"0001104659-25-112946","document":"tm2531440d1_8k.htm","filed":"2025-11-17","form":"8-K","items":"8.01,9.01","report_date":"2025-11-13"},{"accession":"0001104659-25-106279","document":"vstm-20250930x10q.htm","filed":"2025-11-04","form":"10-Q","items":"","report_date":"2025-09-30"},{"accession":"0001104659-25-105923","document":"tm2530140d1_8k.htm","filed":"2025-11-04","form":"8-K","items":"2.02,7.01,9.01","report_date":"2025-11-04"},{"accession":"0001104659-25-101817","document":"tm2529362d1_8k.htm","filed":"2025-10-23","form":"8-K","items":"7.01,8.01,9.01","report_date":"2025-10-23"},{"accession":"0001104659-25-100537","document":"tm2529024d1_8k.htm","filed":"2025-10-20","form":"8-K","items":"7.01,8.01,9.01","report_date":"2025-10-19"},{"accession":"0001104659-25-088021","document":"tm2525447d1_8k.htm","filed":"2025-09-08","form":"8-K","items":"7.01,9.01","report_date":"2025-09-08"},{"accession":"0001104659-25-077659","document":"tm2523452d1_8k.htm","filed":"2025-08-13","form":"8-K","items":"7.01,8.01,9.01","report_date":"2025-08-13"},{"accession":"0001558370-25-010757","document":"vstm-20250630x10q.htm","filed":"2025-08-07","form":"10-Q","items":"","report_date":"2025-06-30"},{"accession":"0001104659-25-055322","document":"tm2516844d2_8k.htm","filed":"2025-06-02","form":"8-K","items":"7.01,9.01","report_date":"2025-06-02"},{"accession":"0001104659-25-055286","document":"tm2516844d1_8k.htm","filed":"2025-06-02","form":"8-K","items":"7.01,8.01,9.01","report_date":"2025-06-02"},{"accession":"0001104659-25-052220","document":"tm2516049d1_8k.htm","filed":"2025-05-23","form":"8-K","items":"5.07,7.01,8.01,9.01","report_date":"2025-05-22"},{"accession":"0001558370-25-007570","document":"vstm-20250331x10q.htm","filed":"2025-05-13","form":"10-Q","items":"","report_date":"2025-03-31"},{"accession":"0001104659-25-046175","document":"tm2514525d1_8k.htm","filed":"2025-05-08","form":"8-K","items":"7.01,8.01,9.01","report_date":"2025-05-08"},{"accession":"0001104659-25-039098","document":"tm2513177d1_8k.htm","filed":"2025-04-25","form":"8-K","items":"1.01,3.02,7.01,9.01","report_date":"2025-04-25"},{"accession":"0001558370-25-004597","document":"vstm-20250522xdef14a.htm","filed":"2025-04-08","form":"DEF 14A","items":"","report_date":"2025-05-22"}],"former_names":[],"gleif_parents":[],"headquarters":[],"insiders":[{"accession":"0001104659-26-110070","acquired_disposed":"D","code":"S","date":"2026-09-21","derivative":false,"filed":"2026-09-23","following_shares":"118014.0","form":"4","owners":["Calkins Daniel"],"plan_10b5_1":true,"price":"7.7","security":"Common Stock","shares":"55.0"},{"accession":"0001104659-26-091172","acquired_disposed":"D","code":"S","date":"2026-08-03","derivative":false,"filed":"2026-08-05","following_shares":"589940.0","form":"4","owners":["Paterson Dan"],"plan_10b5_1":true,"price":"5.81","security":"Common Stock","shares":"1302.0"}],"legal_name":null,"lei":null,"lei_status":null,"lei_updated_at":null,"names":[],"parent_exceptions":[],"parents":[],"wikidata_id":null},"research_built_at":"2026-10-21T06:11:10.683776+00:00","reviewed_events":[],"reviewed_events_coverage":"selective; not a complete event history; accounting series not reconciled","sources":[{"coverage":"8029 issuers; up to 32 recent company reports and 8 ownership-change filings per issuer","id":"sec","license":"SEC public-information reuse","license_url":"https://www.sec.gov/about/privacy-information","name":"SEC submissions","retrieved_at":"2026-10-20T06:11:47.043759+00:00","status":"ok","url":"https://www.sec.gov/search-filings/edgar-application-programming-interfaces"},{"coverage":"1663 unambiguous CIK-linked entities; coverage is incomplete","id":"wikidata","license":"CC0-1.0","license_url":"https://www.wikidata.org/wiki/Wikidata:Licensing","name":"Wikidata structured data","retrieved_at":"2026-10-15T06:12:13.268459+00:00","status":"ok","url":"https://www.wikidata.org/"},{"coverage":"1199 checked identities; 0 unavailable records","id":"gleif","license":"CC0-1.0","license_url":"https://www.gleif.org/en/meta/lei-data-terms-of-use","name":"GLEIF legal entity reference data","retrieved_at":"2026-10-15T06:13:53.192764+00:00","status":"ok","url":"https://www.gleif.org/en/lei-data/gleif-api"},{"coverage":"4 selected series; gaps remain missing","id":"fed","license":"Public domain (selected government series)","license_url":"https://www.federalreserve.gov/disclaimer.htm","name":"Federal Reserve Board H.15","retrieved_at":"2026-10-20T06:12:10.744440+00:00","status":"ok","url":"https://www.federalreserve.gov/releases/h15/"},{"coverage":"9 selected series; gaps remain missing","id":"bls","license":"Public domain","license_url":"https://www.bls.gov/opub/copyright-information.htm","name":"Bureau of Labor Statistics","retrieved_at":"2026-10-20T06:12:12.024240+00:00","status":"ok","url":"https://www.bls.gov/developers/"},{"coverage":"2026 Q3: filings in this completed quarter; not a live transaction feed","id":"insiders","license":"SEC public-information reuse","license_url":"https://www.sec.gov/about/privacy-information","name":"SEC insider transactions","retrieved_at":"2026-10-15T06:12:09.068487+00:00","status":"ok","url":"https://www.sec.gov/data-research/sec-markets-data/insider-transactions-data-sets"}]}