TIMB Stock: Insider Activity, Filings & Research
TIM S.A. (TIMB) — Drillr’s hub for TIMB insider activity, SEC filings, earnings signals and AI research. Over the trailing 3 months, TIMB insiders filed 0 open-market buys and 3 sales (SEC Form 4).
TIMB insider trading activity (SEC Form 4)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| May 20, 2026 | Lima Auana Mattarofficer: Chief Information Officer | Sell | 8,200 | $4.42 |
| May 7, 2026 | Ferreira Vicente De Moraesofficer: Investor Relations Officer | Grant | 16,949 | — |
| May 7, 2026 | Ferreira Vicente De Moraesofficer: Investor Relations Officer | Grant | 3,584 | — |
| May 7, 2026 | Ferreira Vicente De Moraesofficer: Investor Relations Officer | Grant | 1,046 | — |
| May 7, 2026 | Demaria Saverioofficer: Head Business to Consumer | Grant | 28,588 | — |
| May 7, 2026 | Demaria Saverioofficer: Head Business to Consumer | Grant | 6,281 | — |
| May 7, 2026 | Demaria Saverioofficer: Head Business to Consumer | Grant | 1,765 | — |
| May 7, 2026 | Girasole Marioofficer: See Remarks | Grant | 64,319 | — |
| May 7, 2026 | Girasole Marioofficer: See Remarks | Grant | 13,739 | — |
| May 7, 2026 | Girasole Marioofficer: See Remarks | Grant | 3,970 | — |
| May 7, 2026 | Russo Maria Antoniettaofficer: See Remarks | Grant | 52,409 | — |
| May 7, 2026 | Russo Maria Antoniettaofficer: See Remarks | Grant | 14,446 | — |
| May 7, 2026 | Russo Maria Antoniettaofficer: See Remarks | Grant | 3,235 | — |
| May 7, 2026 | Di Costanzo Marcoofficer: Chief Technology Officer | Grant | 24,095 | — |
| May 7, 2026 | Di Costanzo Marcoofficer: Chief Technology Officer | Grant | 7,851 | — |
Source: TIMB SEC Form 4 filings, latest May 20, 2026. For informational purposes only — not investment advice.
TIM S.A. company profile
Overview
TIM S.A. (NYSE:TIMB) is a major Brazilian telecommunications company headquartered in Rio de Janeiro. Founded in 1998 and publicly traded since its IPO, TIM has grown to become one of Brazil's leading mobile network operators, serving over 52 million subscribers as of 2021. The company is a subsidiary of TIM Brasil Serviços e Participações S.A. and has established itself as a dominant player in Brazil's telecommunications market through strategic acquisitions, including the significant purchase of Oi's mobile assets, and aggressive 5G network deployment across the country.
Business
TIM S.A. operates in Brazil's telecommunications industry, providing a comprehensive range of mobile and fixed-line communication services. The telecommunications sector in Brazil serves as the backbone for digital connectivity across one of Latin America's largest economies, enabling everything from basic voice calls to advanced IoT applications for businesses and consumers. The company's core business revolves around mobile telecommunications services, which generate the majority of its revenue. These services include voice calling, text messaging, and mobile data plans offered through both postpaid and prepaid models. Postpaid services, where customers pay monthly bills after usage, represent the higher-value segment and account for approximately 70% of mobile revenues while serving 50% of the customer base. Prepaid services allow customers to pay in advance for usage credits, serving primarily lower-income segments of the Brazilian market. TIM also operates TIM Live (now branded as TIM UltraFibra), a fixed broadband internet service that provides high-speed fiber-optic connections to homes and businesses. This segment represents less than 4% of total revenues but offers growth potential in Brazil's expanding digital economy. The company delivers broadband through both traditional fiber-to-the-home (FTTH) technology and Fixed Wireless Access (FWA) using its mobile network infrastructure. The company has developed a significant Business-to-Business (B2B) division that provides corporate solutions including IoT (Internet of Things) services, mobile connectivity for enterprises, and specialized telecommunications solutions for industries such as agribusiness, logistics, and utilities. This segment has been growing rapidly, with TIM adding over BRL 270 million in new B2B contracts in 2024 alone. Additionally, TIM is expanding its digital ecosystem services, which include mobile applications, digital content, health services, and data monetization platforms. These value-added services represent an emerging revenue stream as the company seeks to diversify beyond traditional telecommunications offerings.
Revenue model
TIM S.A. generates revenue through multiple streams within its telecommunications business model. The primary revenue source comes from monthly subscription fees for mobile services, where postpaid customers pay recurring monthly bills for voice, text, and data allowances, while prepaid customers purchase usage credits in advance. Mobile services represent approximately 85-90% of total revenues, with postpaid services commanding higher average revenue per user (ARPU) of around BRL 45 compared to prepaid ARPU of BRL 14. The company also earns revenue through product sales, including mobile handsets, accessories, and other telecommunications equipment sold through its network of owned stores, franchises, and authorized dealers. Fixed broadband services generate subscription revenue from monthly internet service fees, while the growing B2B segment provides corporate solutions through service contracts and IoT connectivity fees. TIM's revenue growth is influenced by several key factors. Positive drivers include Brazil's expanding digital economy, increasing smartphone penetration, growing demand for mobile data services, and the rollout of 5G technology which enables premium service offerings. The company's "more-for-more" pricing strategy allows it to increase ARPU by offering enhanced services at higher price points. The B2B and IoT segments provide additional growth opportunities as Brazilian businesses increasingly adopt digital solutions. Margin pressures come from intense competition in the Brazilian telecommunications market, particularly from regional operators and other major carriers. Inflationary pressures affect operational costs, especially for network infrastructure, tower leases, and equipment. The prepaid segment faces challenges from economic pressures on lower-income consumers, leading to reduced recharge frequency. Regulatory requirements and spectrum auction costs also impact profitability. The company manages these pressures through operational efficiency programs, AI-driven cost optimization, network sharing agreements, and strategic tower decommissioning initiatives.
Competitive moat
TIM S.A. possesses a moderate competitive moat built primarily on network infrastructure advantages and scale benefits in Brazil's telecommunications market. The company's strongest moat element is its extensive 5G network coverage, being the first operator to deploy standalone 5G in Brazil and maintaining leadership with coverage in over 600 cities. This network advantage provides superior service quality and enables premium pricing for advanced services. The company benefits from significant switching costs for customers, particularly in the postpaid segment where users are tied to contracts and phone number portability, while still available, creates friction for customer migration. TIM's acquisition of Oi's mobile assets strengthened its market position and provided economies of scale in network operations and customer acquisition. However, TIM's moat faces several challenges. The Brazilian telecommunications market remains highly competitive with multiple well-funded competitors including Vivo, Claro, and emerging regional operators. Regulatory oversight limits pricing power and requires substantial ongoing investment in network infrastructure and rural coverage mandates. The capital-intensive nature of telecommunications means continuous investment is required to maintain competitive advantage, particularly with 5G deployment and network modernization. The company's brand recognition and distribution network provide some defensive characteristics, but these are not insurmountable barriers. The emergence of MVNOs (Mobile Virtual Network Operators) and potential new market entrants could pressure margins, though TIM management indicates limited impact so far. The fixed broadband segment faces intense competition from specialized fiber operators, limiting TIM's growth potential in this area. Overall, TIM operates in a mature, regulated industry where competitive advantages are primarily operational rather than structural, making the moat moderate but requiring continuous investment to maintain.
Risks & safety
TIM S.A. demonstrates adequate financial safety with manageable debt levels and consistent cash generation, though working capital management requires attention. • Liquidity position: Cash and short-term investments of BRL 472 million against current liabilities of BRL 2.45 billion, resulting in current ratio of 0.88, indicating tight but manageable short-term liquidity • Debt management: Debt-to-equity ratio of 0.65 represents moderate leverage for a capital-intensive telecommunications company; strong operational cash flow of BRL 415 million provides debt service coverage • Cash generation: Positive free cash flow of BRL 192 million in Q1 2025, with annual 2024 free cash flow of BRL 1.37 billion demonstrating consistent cash generation ability • Valuation metrics: Trading at P/E ratio of 13.5x and EV/EBITDA of 18.6x, representing reasonable valuations for a telecommunications utility with growth prospects • Profitability trends: EBITDA margin of 48% with consistent margin expansion over 13 consecutive quarters indicates operational efficiency and pricing power • Other considerations: Regulated industry provides revenue stability but limits pricing flexibility; capital expenditure requirements for 5G deployment create ongoing funding needs; Brazilian economic conditions and currency fluctuations add macro risk
Recent development
Over the past few years, TIM S.A. has undergone significant strategic transformation focused on three key areas. The company completed its acquisition of Oi's mobile assets, which substantially expanded its customer base and market coverage, making TIM the operator with the broadest mobile coverage in Brazil. This acquisition required extensive integration efforts, including migrating customers to TIM's systems and optimizing the combined network infrastructure. TIM has aggressively pursued 5G network leadership, becoming the first operator to deploy standalone 5G in Brazil and achieving coverage in over 600 cities. The company has invested heavily in network modernization, including a major upgrade of 3,000 sites in São Paulo, and has focused on demonstrating 5G capabilities through high-profile sponsorships like Rock in Rio festival. 5G traffic has more than doubled year-over-year, indicating successful adoption. The company has expanded its digital ecosystem strategy beyond traditional telecommunications services. This includes developing customer platform services in health, education, and mobile applications, as well as building B2B IoT solutions for agribusiness, logistics, and utilities sectors. TIM established a 5G innovation fund managed by Upload Ventures and has been exploring data monetization opportunities, with mobile advertising revenues more than doubling in recent periods. Operational efficiency initiatives have been a major focus, with TIM implementing AI-driven solutions in customer care and network maintenance, pursuing make-versus-buy optimization decisions, and executing a systematic tower decommissioning program. The company has also resumed network sharing agreements with competitors like Vivo to reduce infrastructure costs. These efficiency programs have contributed to 13 consecutive quarters of EBITDA margin expansion. TIM has strengthened its ESG positioning through partnerships with organizations like Gerando Falcões to bridge the digital divide in underserved communities, achieving top rankings in sustainability indices, and expanding rural connectivity coverage to 14.4 million hectares.
TIMB company profile · for informational purposes only — not investment advice.
Track TIMB with Drillr
SEC filings, earnings calls, insider activity, alt-data signals — all queryable through Drillr's AI terminal and MCP API.
Try Drillr for free