UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ______ to ______ Commission file number 1-11840 THE ALLSTATE CORPORATION (Exact name of registrant as specified in its charter) Delaware 36-3871531 (State or other j ...

Financial Performance - Property and casualty insurance premiums for Q2 2019 were $8,986 million, up from $8,460 million in Q2 2018, representing a 6.2% increase[7]. - Net income for Q2 2019 was $851 million, compared to $717 million in Q2 2018, reflecting an 18.7% year-over-year growth[8]. - Total revenues for the first half of 2019 reached $22,134 million, a 11.4% increase from $19,869 million in the same period of 2018[7]. - Earnings per common share (diluted) for Q2 2019 were $2.44, up from $1.91 in Q2 2018, representing a 27.7% increase[7]. - Comprehensive income for Q2 2019 was $1,526 million, significantly higher than $562 million in Q2 2018, showing a 171.4% increase[8]. - Net income for the six months ended June 30, 2019, was $2,143 million, an increase from $1,723 million in 2018, representing a growth of 24.4%[14]. - Total revenues for the second quarter of 2019 were $9,598 million, an increase from $8,711 million in the second quarter of 2018, reflecting a growth of 10.1%[158]. - Net income applicable to common shareholders for the second quarter of 2019 was $863 million, an increase from $630 million in the same period of 2018, representing a growth of 37%[158]. Investment Income - The company reported net investment income of $942 million for Q2 2019, an increase from $824 million in Q2 2018, marking a 14.3% rise[7]. - Net investment income increased by 14.3% or $118 million in Q2 2019 compared to Q2 2018, primarily due to higher performance-based investment results[145]. - Net investment income for the three months ended June 30, 2019, was $471 million, up from $353 million in the same period of 2018, representing a 33.5% increase[160]. Costs and Expenses - Total costs and expenses for Q2 2019 were $10,068 million, compared to $9,204 million in Q2 2018, indicating a 9.4% increase[7]. - The company recognized an impairment of $55 million related to purchased intangibles during the second quarter of 2019[16]. - The expense ratio for the second quarter of 2019 was 23.5%, a decrease from 25.0% in the same period of 2018, suggesting improved operational efficiency[158]. Assets and Liabilities - Total assets increased to $118,374 million as of June 30, 2019, up from $112,249 million at December 31, 2018, representing a growth of 5.0%[9]. - Total liabilities increased to $93,898 million from $90,937 million, reflecting a growth of 3.2%[9]. - The company reported a total of $6,628 million in long-term debt, up from $6,451 million, which is an increase of 2.7%[9]. - Shareholders' equity reached $24,476 million, an increase from $21,312 million year-over-year, indicating a growth of 10.2%[10]. Claims and Catastrophes - Incurred claims and claims expense for the current year amounted to $12,250 million, up from $11,054 million in the prior year, representing a 10.8% increase[110]. - Catastrophe losses accounted for $1.75 billion in incurred claims for the six months ended June 30, 2019, compared to $1.27 billion in the same period of 2018, indicating a significant increase of 37.6%[111]. - Catastrophe losses for the second quarter of 2019 amounted to $1,072 million, compared to $906 million in the same period of 2018, representing an increase of 18.3%[158]. Shareholder Returns - Preferred stock dividends for Q2 2019 amounted to $30 million, down from $39 million in Q2 2018[7]. - The company declared dividends on common stock of $0.50 per share for the current period, compared to $0.46 per share in the previous period[11]. - The weighted average common shares (diluted) for Q2 2019 were 336.9 million, down from 354.6 million in Q2 2018[7]. Legal and Regulatory Matters - The company is managing various disputes in Florida related to personal injury protection benefits under auto policies, with ongoing litigation from medical providers[126]. - The company has faced multiple lawsuits alleging violations of federal securities laws, with claims related to misstatements about auto insurance claim frequency statistics[128]. - The company does not establish accruals for legal matters unless it believes a loss is probable and can be reasonably estimated[126]. Pension and Retirement Plans - Pension and other postretirement remeasurement losses were $125 million and $140 million for the second quarter and first six months of 2019, respectively, compared to remeasurement gains of $7 million and losses of $7 million for the same periods of 2018[130]. - The actual return on plan assets exceeded the expected return by $225 million and $616 million for the second quarter and first six months of 2019, driven by strong equity market performance[131]. - The weighted average discount rate for measuring the benefit obligation decreased to 3.53% as of June 30, 2019, down from 4.30% at December 31, 2018[130].

Financial Performance - Total revenues for Q1 2019 increased to $10,990 million, up 12.4% from $9,770 million in Q1 2018[7] - Net income for Q1 2019 was $1,292 million, representing a 28.5% increase compared to $1,006 million in Q1 2018[9] - Earnings per share (diluted) rose to $3.74 in Q1 2019, up from $2.71 in Q1 2018, reflecting a 37.9% increase[7] - Comprehensive income for Q1 2019 was $2,259 million, significantly higher than $425 million in Q1 2018[9] - Net income for the first quarter of 2019 was $1,292 million, an increase of 28.5% compared to $1,006 million in the same period of 2018[12] - Total shareholders' equity at the end of the first quarter of 2019 was $23,418 million, up from $23,273 million year-over-year[12] - Consolidated net income applicable to common shareholders increased by 29.1% in Q1 2019, reaching $1,261 million compared to $977 million in Q1 2018[135] Insurance Premiums - Property and casualty insurance premiums grew to $8,802 million, a 6.2% increase from $8,286 million in the same period last year[7] - Premiums written in Allstate Protection increased by 6.2% to $8.33 billion in Q1 2019 compared to the same period in 2018[138] - Total premiums written increased to $8,327 million in Q1 2019, up from $7,844 million in Q1 2018, representing a growth of 6.2%[155] - Homeowners premiums written rose to $1,565 million in Q1 2019, up from $1,465 million in Q1 2018, marking an increase of 6.8%[177] Investment Performance - Total investments as of March 31, 2019, amounted to $84,121 million, an increase from $81,260 million at the end of 2018[10] - The company reported realized capital gains of $662 million in Q1 2019, compared to a loss of $134 million in Q1 2018[7] - Net investment income for the first quarter of 2019 was $648 million, compared to $786 million in Q1 2018, reflecting a decrease of approximately 17.6%[52] - The company’s investment income before expenses was $719 million in Q1 2019, down from $851 million in Q1 2018, reflecting a decrease of approximately 15.5%[52] Claims and Expenses - The company reported property and casualty insurance claims and claims expense of $5,820 million, a slight decrease of $9 million from previous reporting[26] - Incurred claims and claims expense for the current year totaled $5.808 billion for the three months ended March 31, 2019, compared to $5.180 billion for the same period in 2018[113] - Catastrophe losses accounted for $680 million in incurred claims and claims expense for the three months ended March 31, 2019, compared to $361 million in 2018[114] - The combined ratio worsened to 91.8% in Q1 2019 from 87.5% in Q1 2018, primarily due to higher claims expenses[148] Shareholder Equity - Shareholders' equity increased to $23,418 million as of March 31, 2019, up from $21,312 million at the end of 2018[11] - The company reported total liabilities of $92,416 million as of March 31, 2019, an increase of $19 million from the previous accounting principle[31] - Total shareholders' equity was $23,418 million as of March 31, 2019, reflecting a decrease of $19 million due to the impact of accounting changes[31] Accounting Changes and Impacts - The cumulative effect of changing the accounting principle for pension and postretirement plans resulted in a decrease to retained income of $1.58 billion as of January 1, 2018[24] - The company expects the most significant impacts of new accounting guidance to occur in the run-off annuity segment, with material changes anticipated in financial statements[21] - The company is evaluating the anticipated impacts of applying new guidance on both retained income and accumulated other comprehensive income (AOCI)[22] Operational Cash Flow - Net cash provided by operating activities was $714 million, compared to $626 million in the first quarter of 2018, reflecting a 14% increase[13] - Cash flows from operating activities for the three months ended March 31, 2019, were $714 million, consistent with the previous period[37] - Operating cash flow used was $(515) million for the three months ended March 31, 2019, compared to $87 million provided in the same period of 2018[129] Acquisitions - The company acquired iCracked Inc. for $17 million and PlumChoice, Inc. for $30 million, enhancing its service offerings in the technology support sector[42] - The company acquired iCracked Inc. on February 12, 2019, enhancing its on-site repair service capabilities[140] Legal and Regulatory Matters - The Company is involved in various lawsuits and regulatory inquiries, including challenges to its practices regarding personal injury protection benefits in Florida[122] - The Company has established procedures to comply with extensive laws and regulations, which may lead to modifications in practices and potential costs[120] - The outcome of ongoing legal proceedings is uncertain and may not have a material effect on the Company's financial position[122]

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ý ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number 1-11840 THE ALLSTATE CORPORATION (Exact name of registrant as specified in its charter) Delaware 36-3871531 (State or Other Jurisdiction of Incorpor ...