{"schema_version":"alpha-governance-record-v2","alpha_id":"alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677","record_version":"public-1:ro-d751713988987e9331980363e24189ce","ontology_version":"alpha-governance-ontology-v1","as_of":"2026-10-28T04:45:41.567382+00:00","published_at":"2026-10-28T04:45:41.567382+00:00","section":"events","data":{"state":"PUBLISHED","derivation_version":"alpha-governance-event-derivation-v2","events":[{"event_id":"alpha:event:transition:1clmxbiof1bl2","event_type":"CFO_CHANGED","effective_at":"2026-02-20","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:person:bradford-j-helgeson-cwst","alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:16"],"evidence_ids":["alpha:projection-evidence:document:dc62d0984b6dc36568ac54e5e10b1e3e2855792630565eb2806b67b998ab2a88"],"summary":"Bradford J. Helgeson executive of CASELLA WASTE SYSTEMS INC, effective 2026-02-20.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:ygjadl1wk4ipv","event_type":"CEO_CHANGED","effective_at":"2026-02-20","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:person:edmond-ned-r-coletta-cwst","alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:17"],"evidence_ids":["alpha:projection-evidence:document:62561c64054b6bed2110118b28eb5da0eae1bca48c7f2a459845bf499a092115"],"summary":"Edmond Ned R. Coletta executive of CASELLA WASTE SYSTEMS INC, effective 2026-02-20.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:5aihml1n719iv","event_type":"EXECUTIVE_APPOINTED","effective_at":"2026-02-20","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:person:kevin-j-drohan-cwst","alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:18"],"evidence_ids":["alpha:projection-evidence:document:aa20ad60b7770a1cfd846432bfd8554d35b672afc55be1f5f6ffb111bea187ef"],"summary":"Kevin J. Drohan executive of CASELLA WASTE SYSTEMS INC, effective 2026-02-20.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:148qs14hhf8fm","event_type":"EXECUTIVE_APPOINTED","effective_at":"2026-02-20","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:person:sean-m-steves-cwst","alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:19"],"evidence_ids":["alpha:projection-evidence:document:3d9747da86977efa06cd8d8fe18f768226b430c675354bc50a90e3c37acbdd5d"],"summary":"Sean M. Steves executive of CASELLA WASTE SYSTEMS INC, effective 2026-02-20.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:d9erl5lh4ei7","event_type":"GC_CHANGED","effective_at":"2026-02-20","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:person:shelley-e-sayward-cwst","alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:20"],"evidence_ids":["alpha:projection-evidence:document:c069b8d0898661d2173614a1049337235d241d5b3c8af549d22876ed2eb21385"],"summary":"Shelley E. Sayward executive of CASELLA WASTE SYSTEMS INC, effective 2026-02-20.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1dgouep8bms9f","event_type":"DIRECTOR_APPOINTED","effective_at":"2026-01-01","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:person:edmond-r-coletta","alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:7"],"evidence_ids":["alpha:projection-evidence:document:ab6cfc48eaaba4baac6c89df5194c914503013ae2c3c6ad17833e7962ce65c34"],"summary":"Edmond R. Coletta seat on CASELLA WASTE SYSTEMS INC, effective 2026-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:8pyp0k154bcg2","event_type":"DIRECTOR_APPOINTED","effective_at":"2021-01-01","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:person:gary-sova","alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:9"],"evidence_ids":["alpha:projection-evidence:document:ab6cfc48eaaba4baac6c89df5194c914503013ae2c3c6ad17833e7962ce65c34"],"summary":"Gary Sova seat on CASELLA WASTE SYSTEMS INC, effective 2021-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:jsez3o19alxei","event_type":"COMMITTEE_CREATED","effective_at":"2021-01-01","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:committee:casella-waste-systems-inc:audit-compensation","alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:9"],"evidence_ids":["alpha:projection-evidence:document:ab6cfc48eaaba4baac6c89df5194c914503013ae2c3c6ad17833e7962ce65c34"],"summary":"Audit; Compensation committee of CASELLA WASTE SYSTEMS INC, effective 2021-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:eztjr3rdsnfz","event_type":"COMMITTEE_MEMBER_ADDED","effective_at":"2021-01-01","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:person:gary-sova","alpha:committee:casella-waste-systems-inc:audit-compensation"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:9"],"evidence_ids":["alpha:projection-evidence:document:ab6cfc48eaaba4baac6c89df5194c914503013ae2c3c6ad17833e7962ce65c34"],"summary":"Gary Sova member of Audit; Compensation, effective 2021-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1n6y2n51s1ceon","event_type":"DIRECTOR_APPOINTED","effective_at":"2020-01-01","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:person:rose-stuckey-kirk","alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:14"],"evidence_ids":["alpha:projection-evidence:document:ab6cfc48eaaba4baac6c89df5194c914503013ae2c3c6ad17833e7962ce65c34"],"summary":"Rose Stuckey Kirk seat on CASELLA WASTE SYSTEMS INC, effective 2020-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1nc3e9bvlfbh7","event_type":"COMMITTEE_CREATED","effective_at":"2020-01-01","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:committee:casella-waste-systems-inc:compensation-nominating-and-governance","alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:14"],"evidence_ids":["alpha:projection-evidence:document:ab6cfc48eaaba4baac6c89df5194c914503013ae2c3c6ad17833e7962ce65c34"],"summary":"Compensation; Nominating and Governance committee of CASELLA WASTE SYSTEMS INC, effective 2020-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:h112w4ckxc24","event_type":"COMMITTEE_MEMBER_ADDED","effective_at":"2020-01-01","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:person:rose-stuckey-kirk","alpha:committee:casella-waste-systems-inc:compensation-nominating-and-governance"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:14"],"evidence_ids":["alpha:projection-evidence:document:ab6cfc48eaaba4baac6c89df5194c914503013ae2c3c6ad17833e7962ce65c34"],"summary":"Rose Stuckey Kirk member of Compensation; Nominating and Governance, effective 2020-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:egkexa1xex9eu","event_type":"DIRECTOR_APPOINTED","effective_at":"2019-01-01","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:person:michael-l-battles-2","alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:13"],"evidence_ids":["alpha:projection-evidence:document:ab6cfc48eaaba4baac6c89df5194c914503013ae2c3c6ad17833e7962ce65c34"],"summary":"Michael L. Battles seat on CASELLA WASTE SYSTEMS INC, effective 2019-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1yc460m1fuwpao","event_type":"DIRECTOR_APPOINTED","effective_at":"2015-01-01","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:person:william-p-hulligan","alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:15"],"evidence_ids":["alpha:projection-evidence:document:ab6cfc48eaaba4baac6c89df5194c914503013ae2c3c6ad17833e7962ce65c34"],"summary":"William P. Hulligan seat on CASELLA WASTE SYSTEMS INC, effective 2015-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1qmu0ru15k0xrs","event_type":"COMMITTEE_CREATED","effective_at":"2015-01-01","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:committee:casella-waste-systems-inc:audit-compensation-chair","alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:15"],"evidence_ids":["alpha:projection-evidence:document:ab6cfc48eaaba4baac6c89df5194c914503013ae2c3c6ad17833e7962ce65c34"],"summary":"Audit; Compensation · Chair committee of CASELLA WASTE SYSTEMS INC, effective 2015-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1hesvjx1uqnpl5","event_type":"COMMITTEE_MEMBER_ADDED","effective_at":"2015-01-01","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:person:william-p-hulligan","alpha:committee:casella-waste-systems-inc:audit-compensation-chair"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:15"],"evidence_ids":["alpha:projection-evidence:document:ab6cfc48eaaba4baac6c89df5194c914503013ae2c3c6ad17833e7962ce65c34"],"summary":"William P. Hulligan member of Audit; Compensation · Chair, effective 2015-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:nbuzo76yoqp3","event_type":"DIRECTOR_APPOINTED","effective_at":"2012-01-01","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:person:emily-nagle-green","alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:8"],"evidence_ids":["alpha:projection-evidence:document:ab6cfc48eaaba4baac6c89df5194c914503013ae2c3c6ad17833e7962ce65c34"],"summary":"Emily Nagle Green seat on CASELLA WASTE SYSTEMS INC, effective 2012-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1311xlb10ankwf","event_type":"COMMITTEE_CREATED","effective_at":"2012-01-01","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:committee:casella-waste-systems-inc:compensation-nominating-and-governance-chair","alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:8"],"evidence_ids":["alpha:projection-evidence:document:ab6cfc48eaaba4baac6c89df5194c914503013ae2c3c6ad17833e7962ce65c34"],"summary":"Compensation; Nominating and Governance · Chair committee of CASELLA WASTE SYSTEMS INC, effective 2012-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1dh0la0i2magc","event_type":"COMMITTEE_MEMBER_ADDED","effective_at":"2012-01-01","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:person:emily-nagle-green","alpha:committee:casella-waste-systems-inc:compensation-nominating-and-governance-chair"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:8"],"evidence_ids":["alpha:projection-evidence:document:ab6cfc48eaaba4baac6c89df5194c914503013ae2c3c6ad17833e7962ce65c34"],"summary":"Emily Nagle Green member of Compensation; Nominating and Governance · Chair, effective 2012-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:upir9b9ui54n","event_type":"DIRECTOR_APPOINTED","effective_at":"2008-01-01","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:person:michael-k-burke","alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:12"],"evidence_ids":["alpha:projection-evidence:document:ab6cfc48eaaba4baac6c89df5194c914503013ae2c3c6ad17833e7962ce65c34"],"summary":"Michael K. Burke seat on CASELLA WASTE SYSTEMS INC, effective 2008-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:5ljc2n17m9v8v","event_type":"COMMITTEE_CREATED","effective_at":"2008-01-01","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:committee:casella-waste-systems-inc:audit-chair-nominating-and-governance","alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:12"],"evidence_ids":["alpha:projection-evidence:document:ab6cfc48eaaba4baac6c89df5194c914503013ae2c3c6ad17833e7962ce65c34"],"summary":"Audit · Chair; Nominating and Governance committee of CASELLA WASTE SYSTEMS INC, effective 2008-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:prob3rh004sp","event_type":"COMMITTEE_MEMBER_ADDED","effective_at":"2008-01-01","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:person:michael-k-burke","alpha:committee:casella-waste-systems-inc:audit-chair-nominating-and-governance"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:12"],"evidence_ids":["alpha:projection-evidence:document:ab6cfc48eaaba4baac6c89df5194c914503013ae2c3c6ad17833e7962ce65c34"],"summary":"Michael K. Burke member of Audit · Chair; Nominating and Governance, effective 2008-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:mtf0q0b7sqw8","event_type":"DIRECTOR_APPOINTED","effective_at":"2004-01-01","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:person:joseph-g-doody","alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:11"],"evidence_ids":["alpha:projection-evidence:document:ab6cfc48eaaba4baac6c89df5194c914503013ae2c3c6ad17833e7962ce65c34"],"summary":"Joseph G. Doody seat on CASELLA WASTE SYSTEMS INC, effective 2004-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:sy068il6i17e","event_type":"DIRECTOR_APPOINTED","effective_at":"1993-01-01","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:person:douglas-r-casella","alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:6"],"evidence_ids":["alpha:projection-evidence:document:ab6cfc48eaaba4baac6c89df5194c914503013ae2c3c6ad17833e7962ce65c34"],"summary":"Douglas R. Casella seat on CASELLA WASTE SYSTEMS INC, effective 1993-01-01.","derivation":"temporal_relationship_change"},{"event_id":"alpha:event:transition:1ji4x1fg8hztt","event_type":"DIRECTOR_APPOINTED","effective_at":"1993-01-01","detected_at":"2026-10-28T04:45:41.567382+00:00","subject_ids":["alpha:person:john-w-casella","alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677"],"caused_claim_ids":["alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:10"],"evidence_ids":["alpha:projection-evidence:document:ab6cfc48eaaba4baac6c89df5194c914503013ae2c3c6ad17833e7962ce65c34"],"summary":"John W. Casella seat on CASELLA WASTE SYSTEMS INC, effective 1993-01-01.","derivation":"temporal_relationship_change"}]},"claims":[{"id":"alpha:claim:company:d0263a53-6c7f-465a-b449-0f5e7f250677:leadership_role:6","subject_id":"alpha:company:d0263a53-6c7f-465a-b449-0f5e7f250677","predicate":"alpha:hasBoardOrCommitteeRole","object_id":"alpha:person:douglas-r-casella","object_label":"Douglas R. Casella","object_source_name_forms":[],"value":"Douglas R. Casella: Director","claim_type":"leadership_role","predicate_id":"alpha:predicate:leadership_role","predicate_version":1,"machine_key":"leadership_role","human_label":"Leadership Role","governed_predicate":true,"machine_value":{"kind":"board_seat","person":{"alpha_id":"alpha:person:douglas-r-casella","name":"Douglas R. 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