{ "ticker": "ARCB", "company": "ArcBest Corp.", "cik": "0000894405", "exchange": "NASDAQ", "gics_sector": "Industrials", "industry": "Industrials", "logo_url": "https://www.google.com/s2/favicons?domain=arcb.com&sz=128", "from_state": "DE", "to_state": "TX", "effective_date_iso": "2026-04-24", "actual_effective_date_iso": "2026-04-24", "proposed_effective_date_iso": null, "source_confidence": "VERIFIED_EFFECTIVE", "is_legal_precedent": 0, "vote_mechanism": null, "approval_basis": "For \u00f7 outstanding voting power (DGCL \u00a7266 conversion)", "threshold_result": null, "event_type": null, "two_attempt_flag": 0, "prior_failed_vote_flag": 0, "governance_concession_redo_flag": 0, "subsequent_event_flag": 0, "subsequent_event_type": null, "subsequent_event_date_iso": null, "subsequent_event_note": null, "public_tier": "VERIFIED_TRACKER", "event_study_announcement_json": "{\"event_date\":\"2026-02-20\",\"event_tag\":\"announcement\",\"estimation_window\":\"2025-03-07 to 2026-02-19 (240 days)\",\"specifications\":[{\"name\":\"Synthetic control (19-donor Industrials peer pool)\",\"day0_ar\":-0.007450391993369883,\"p_value\":null,\"p_label\":\"no inference (point estimate)\",\"extra\":{\"pre_rmspe\":0.024928539828080774,\"n_donors\":19,\"top_weights\":{\"FDX\":0.577,\"UPS\":0.1966,\"EMR\":0.183,\"MMM\":0.0435,\"HON\":0.0},\"r2_pre\":0.6624651843390141}},{\"name\":\"Market model (SPY benchmark)\",\"day0_ar\":-0.01296407584465656,\"p_value\":0.6555410700260993,\"p_label\":\"Patell-z p-value\",\"extra\":{\"alpha\":0.000512048654148476,\"beta\":1.7086685228351202,\"r2\":0.3420584785840053}},{\"name\":\"Sector-augmented model (SPY + Industrials ETF (XLI))\",\"day0_ar\":-0.009632182103581119,\"p_value\":0.7264708216044393,\"p_label\":\"Patell-z p-value\",\"extra\":{\"alpha\":-0.00043083754161589563,\"beta_mkt\":0.17235859131193143,\"beta_sector\":1.7279969834770916,\"r2\":0.4087885621389984},\"is_headline\":true},{\"name\":\"Matched pair (vs FDX, market-model-adjusted)\",\"day0_ar\":-0.018201429262198546,\"p_value\":0.5828721538934636,\"p_label\":\"two-sided p-value\",\"extra\":{\"se\":0.03314206120970505,\"t\":-0.5491942443479824}},{\"name\":\"Raw differential vs FDX\",\"day0_ar\":-0.014032585462267821,\"p_value\":null,\"p_label\":\"no inference\",\"extra\":{}}],\"robustness\":{\"pretrend_test\":{\"slope_pct_per_day\":0.0038690359708180595,\"p_slope\":0.24386100599621718,\"verdict\":\"no_pretrend_detected\"},\"sign_test\":{\"n_same_direction\":8,\"n_total\":19,\"binomial_p_two_sided\":0.6476058959960938},\"synth_fit\":{\"pearson_corr\":0.8417077915624792,\"r_squared_levels\":0.6624651843390141,\"durbin_watson\":2.1455265363126537}},\"per_window\":[],\"_source\":\"Source A: phase4v cohort runner (5 specs + robustness, 2026-04-28 yfinance pull); joined into data.json by phase5z_join_full_battery.py\",\"event_kind\":\"announcement\",\"t0_source_field\":\"announcement_date_iso\"}", "announcement_date_iso": "2026-02-20", "meeting_date_iso": "2026-04-23", "vote_result": "APPROVED", "status_label": "COMPLETED", "market_cap_usdmm": 2645.2, "bucket_class": "B1", "public_bucket_code": "C", "public_bucket_label": "Post-SB29 DExit completed (Texas)", "public_bucket_subcode": "C-TX", "panel_eligibility": "PANEL_A_post_SB29", "transaction_status": "COMPLETED", "audit_status": "VERIFIED_EDGAR", "audit_notes": "| Effective date present but no Accession URL in v6 rev78; retrieve from EDGAR. | v2.9: status CLAIMED_COMPLETED_UNVERIFIED \u2014 eff_date present but EDGAR URL missing; reclassify to COMPLETED after 8-K verification | v2.9.2: promoted to VERIFIED_EDGAR + COMPLETED \u2014 ArcBest Corp \u2014 Confirmed in BLP April 2026 update; reincorporation DE\u2192TX completed (DEF 14A March 13, 2026) | [2026-04-28] Phase 4I: replaced Google-search IR fallback with direct URL https://investor.arcb.com/ | [2026-04-28] Phase 4N: synthesized event_study_announcement_json from existing scalar CAR cells (phase4a_v2 join). Reviewer can extend with multi-spec analysis.\n[2026-04-28] phase5c: vote source 8-K 0001104659-26-048553 (2026-04-24, \u0394=1d) applied from EDGAR pull (status=AUTO_RESOLVED)\n[2026-04-28] phase5e: cleaned edgar_accession_canonical: extracted '0001104659-26-020485' from raw value '000110465926020485 (PRE 14A)' (source=unhyphenated_normalized)\n[2026-04-28] phase5c: vote source 8-K 0001104659-26-048553 (2026-04-24, \u0394=1d) applied from EDGAR pull (status=AUTO_RESOLVED)\n[2026-04-29] phase5r: bucket 'C' -> 'B1' (DE->TX effective 2026-04-24 >= SB29 -> bucket B1)\n[2026-04-29] phase5u: row independently validated by external Reviewer (full-residual pass, 78/276 substantive answers); validations applied: V_DATE_ANN=CONFIRM; V_DATE_MEET=CONFIRM; V_DATE_EFF=CONFIRM; V_FROM_TO=CONFIRM; V_BUCKET=WRONG=B1; V_COHORT=CONFIRM_INCLUSION; primary-source URLs all under https://www.sec.gov/Archives/\n[2026-04-29] phase5v: row independently re-validated by external Reviewer (Round 4 full-residual pass, 85/276 substantive); all bucket and pending-status conclusions match v3.57\n[2026-04-29] phase5w: comprehensive validation by external reviewer across tranches v5 (4-version full residual walk, 269 substantive answers across 52 firms, 0 bucket drifts vs v3.58) | [2026-04-29] v3.75: VERIFIED via 8-K Item 5.07: 13.9M for / 6.9M against / 17,901 abstain / 675,343 broker non-votes. ~67% of votes cast; majority-of-outstanding test also met. Special meeting Apr 24, 2026; effective May 15, 2026.", "edgar_accession": "0001104659-26-020485", "edgar_accession_note": null, "links": [ { "label": "IR", "url": "https://investor.arcb.com/", "link_type": "ir" }, { "label": "EDGAR", "url": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000894405&type=&dateb=&owner=include&count=40", "link_type": "search" }, { "label": "Proxy", "url": "https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000894405&type=DEF+14A&dateb=&owner=include&count=40", "link_type": "search" } ], "car": { "value": -0.02122431233073489, "pvalue": 0.2105263157894737, "significant_5pct": 0, "specification": "synthetic_control", "event_date": "2026-03-06", "event_tag": "filing_date", "confound": "MEDIUM", "placebo_ratio": 0.7666109645469085, "pre_rmspe": 0.01659230662574037, "source": "Event_Studies/results/per_firm_event_study.csv", "status": "ESTIMATED", "pooled_3primary": 0.06995393200756994, "t0_a": 0.06927329617134248, "t0_b": 0.03321775716718871, "t0_c": -0.03253712133096125, "announce": { "value": -0.02122431233073489, "pvalue": 0.2105263157894737, "specification": "synthetic_control", "event_date": "2026-03-06" }, "vote": { "value": 0.03321775716718871, "pvalue": null, "specification": "panel_A_T0_vote", "event_date": null } }, "votes_for": null, "votes_against": null, "votes_abstain": null, "votes_broker_nonvote": null, "approval_pct": null, "votes_for_disinterested": null, "votes_against_disinterested": null, "votes_abstain_disinterested": null, "votes_broker_nonvote_disinterested": null, "approval_pct_disinterested": null, "approval_basis_disinterested": null, "announcement_PRE_14A_accession": null, "announcement_PRE_14A_url": null, "vote_source_8k_accession": "0001104659-26-048553", "vote_source_8k_url": "https://www.sec.gov/Archives/edgar/data/894405/000110465926048553/tmb-20260424x8k.htm", "vote_proposal_title": null, "meeting_type": null, "approval_standard": "majority of the voting power of the outstanding stock entitled to vote (DGCL \u00a7266 conversion)", "companion_proposal": null, "proxy_advisors": null, "management_response": null, "press_coverage": [], "prior_vote": null, "panel_a_tx_incumbent": 0, "panel_b_dexit_mover": 1, "texas_statutory_adoptions": { "tboc_21_552": { "name": "SB 29 \u2014 TBOC \u00a721.552 derivative threshold", "adopted": 0, "source": null, "url": null, "date": null }, "tboc_21_373": { "name": "SB 1057 \u2014 TBOC \u00a721.373 shareholder-proposal threshold", "adopted": null, "source": null, "url": null, "date": null } }, "event_study_outcome_json": "{\"event_date\":\"2026-04-24\",\"event_kind\":\"outcome\",\"event_tag\":\"outcome\",\"t0_source_field\":\"actual_effective_date_iso\",\"estimation_window\":\"trailing 240 days; 240 valid after NaN drop\",\"specifications\":[{\"name\":\"Market model (SPY benchmark)\",\"day0_ar\":0.006044787498421238,\"p_value\":0.8261837572910482,\"p_label\":\"Patell-z p-value\",\"extra\":{\"alpha\":0.0013248493360728127,\"beta\":1.8582746765398777,\"r2\":0.22341786400434327,\"sigma\":0.02742811851886071},\"is_headline\":true}],\"_meta\":{\"n_valid_pre_days\":240},\"_source\":\"Source B: phase4v3 NaN-safe runner (outcome/vote window, 2026-04-29 yfinance pull); joined by phase5z_join_full_battery.py\"}", "announcement_source_type": null, "announcement_accession_verified": "N", "date_quality_flag": "LOW", "controlled": 0, "controller_pct_voting_power": null, "controller": null, "controller_source": "Large-cap, widely held", "_evidence_strength": { "badge": "SILVER", "score": 75, "max": 100, "components": { "source_confidence": 30, "vote_totals": 0, "effective_date": 20, "car_estimate": 10, "edgar_accession": 15 } }, "_context_callout": "Standard cohort firm (Completed). Included for breadth across destinations and sectors.", "_generated_at": "2026-04-30" }