Financial Performance - For the three months ended September 30, 2022, the company reported a net income of $118,000, a significant increase from $16,000 in the same period of 2021[115]. - Net interest income for the three months ended September 30, 2022, was $1.5 million, compared to $1.0 million for the same period in 2021[116]. - The average yield on total interest-earning assets increased by 53 basis points to 2.66% in Q3 2022 compared to Q3 2021, driven by higher yields on loans and investments[117]. - The company recorded a reversal of provision for loan losses of $84,000 for the three months ended September 30, 2022, compared to $12,000 for the same period in 2021[124]. - Noninterest income decreased by $188,000, or 50.4%, to $185,000 for the quarter ended September 30, 2022, compared to $373,000 for the same period in 2021, primarily due to the absence of gains on the sale of securities[128]. - For the nine months ended September 30, 2022, noninterest income increased by $91,000, or 9.4%, to $1.1 million compared to $971,000 for the same period in 2021, driven by the recognition of the Employee Retention Credit[129]. - Noninterest expense increased by $322,000, or 24.5%, to $1.7 million for the three months ended September 30, 2022, compared to $1.4 million for the same period in 2021, mainly due to higher salaries and professional services expenses[131]. - For the nine months ended September 30, 2022, the company reported a net loss of $12,000, down from a net income of $2,000 for the same period in 2021[115]. Assets and Liabilities - The total assets of the company reached $285.5 million as of September 30, 2022, compared to $241.2 million as of September 30, 2021[112]. - Total assets decreased by $72.7 million, or 21.3%, to $268.2 million at September 30, 2022, compared to $340.9 million at December 31, 2021, primarily due to a decrease in cash and cash equivalents[136]. - Loans receivable, net increased by $1.2 million, or 1.3%, to $97.7 million at September 30, 2022, compared to $96.5 million at December 31, 2021[139]. - Total deposits decreased by $102.2 million, or 35.8%, primarily due to refunds issued related to the oversubscription of stock purchases[140]. - The allowance for loan losses decreased by $94,000, or 12.1%, to $685,000 at September 30, 2022, compared to $779,000 at December 31, 2021[139]. - As of September 30, 2022, the allowance for loan losses decreased to $685,000, representing 0.70% of total loans, down from 0.81% as of December 31, 2021[148]. Capital and Liquidity - The Bank's Tier 1 capital to average assets ratio was 23.78% as of September 30, 2022, significantly above the 9% threshold for being considered well capitalized[155]. - The Bank had the capacity to borrow approximately $63.7 million from the FHLB of Chicago as of September 30, 2022[151]. - The Bank's liquidity position is monitored daily, with sufficient funds anticipated to meet current funding commitments[154]. - Total commitments, including unused lines of credit and commitments to originate loans, amounted to $3.287 million as of September 30, 2022[158]. - Time deposits scheduled to mature in less than one year totaled $31.7 million as of September 30, 2022[154]. - The total contractual obligations, primarily time deposits, amounted to $57.571 million as of September 30, 2022[159]. Business Operations - The company modified 50 loans with principal balances totaling $9.7 million due to the COVID-19 pandemic, all of which have returned to repayment status as of September 30, 2022[102]. - The company funded 40 SBA PPP loans totaling $1.3 million to support customers during the pandemic, all of which were forgiven by the SBA as of September 30, 2022[102]. - The company's primary business activities include originating loans for one- to four-family residential properties and attracting retail deposits, with revenues primarily derived from interest on loans and noninterest income[100]. - The company expects noninterest expenses to increase as operations grow, particularly due to new stock benefit plans[107]. - The company operates from three locations in Illinois, including its headquarters in Waukegan, and has a loan production office in Chicago[97]. - The company is subject to comprehensive regulation and examination by the Office of the Comptroller of the Currency (OCC)[97]. - The company’s financial condition is significantly affected by general economic conditions, interest rates, and the impact of the COVID-19 pandemic[107]. - The company’s net interest income is largely determined by the net interest spread and the relative amounts of interest-earning assets and interest-bearing liabilities[107]. Interest and Yield - The net interest margin improved to 2.36% for the three months ended September 30, 2022, compared to 1.73% for the same period in 2021[116]. - The cost of interest-bearing liabilities decreased by 6 basis points to 0.44% for the three months ended September 30, 2022, compared to the same period in 2021[119]. - The average interest-earning assets to average interest-bearing liabilities ratio improved to 146.43% for the three months ended September 30, 2022, from 125.88% in the same period of 2021[110]. Future Outlook - The new CECL model for credit losses will be effective January 2023, requiring earlier recognition of credit losses[163].

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Table of Contents FORM 10-Q (Mark one) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-41232 NSTS BANCORP, INC. (Exact name of the registrant as specified in its charter) Delaware 87-2522769 (State or Other Jurisdiction of (I.R.S. E ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-41232 NSTS BANCORP, INC. (Exact name of the registrant as specified in its charter) Delaware 87-2522769 (State or Other Jurisdiction of (I.R.S. ...

☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark one) Commission File Number 001-41232 NSTS BANCORP, INC. (Exact name of the registrant as specified in its charter) Delaware 87-2522769 (State or Other Jurisdiction of Incorporation ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark one) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 Or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 333-259483 NSTS BANCORP, INC. (Exact name of the registrant as specified in its charter) (State or Other Jurisdiction of (I.R.S. Employer Incorp ...