InsidersTradesSigma
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (151 ops.)
Insider track record
ExecutiveDisclosed buys
0
Disclosed sells
151
T+90 hit rate
50%
T+90 mean return
+2.1%
Across 16 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Browse the full record of transactions filed by Frank Thomas AJ, Executive Vice President. Officer active across 1 company, notably Interactive Brokers Group, Inc.. Cumulatively, 168 reports have been logged. Split: 0 buy · 151 sells. Total volume traded: €130.7m. Activity tracked since 7 May 2021. The latest transaction was disclosed on 8 May 2026 (Retenue fiscale). Regulator: SEC (Form 4). The full history is openly available.
Declarations168 total
31,730 shares@ US$84.420.0015% mcap0.5% of flowClass A common stockSEC:0001381197-26-000105:0
6,709 shares0Class A common stockSEC:0001381197-25-000021:0
8,127 shares@ US$119.130.2% of flowClass A common stockSEC:0001381197-24-000105:0
34,345 shares@ US$95.600.7% of flowClass A common stockSEC:0001381197-24-000073:0
36,883 shares@ US$90.640.7% of flowClass A common stockSEC:0001381197-24-000069:0
6,987 shares@ US$90.070.1% of flowClass A common stockSEC:0001381197-24-000064:0
30,888 shares@ US$91.080.6% of flowClass A common stockSEC:0001381197-24-000062:0
29,200 shares@ US$91.530.6% of flowClass A common stockSEC:0001381197-24-000060:0
37,132 shares@ US$90.330.7% of flowClass A common stockSEC:0001381197-24-000058:0
12,917 shares@ US$88.680.2% of flowClass A common stockSEC:0001381197-24-000056:0
9,043 shares@ US$87.450.2% of flowClass A common stockSEC:0001381197-24-000054:0
10,117 shares@ US$87.540.2% of flowClass A common stockSEC:0001381197-24-000052:0
12,827 shares@ US$87.390.2% of flowClass A common stockSEC:0001381197-24-000045:0
10,930 shares@ US$87.670.2% of flowClass A common stockSEC:0001381197-24-000037:0
15,088 shares0Class A common stockSEC:0001381197-24-000023:0
6,143 shares@ US$85.350.1% of flowClass A common stockSEC:0001381197-24-000031:0
11,743 shares@ US$86.260.2% of flowClass A common stockSEC:0001381197-23-000133:0
5,510 shares@ US$85.580.1% of flowClass A common stockSEC:0001381197-23-000127:0
13,097 shares@ US$88.620.3% of flowClass A common stockSEC:0001381197-23-000121:0
2,620 shares@ US$88.600.1% of flowClass A common stockSEC:0001381197-23-000119:0
11,382 shares@ US$86.430.2% of flowClass A common stockSEC:0001381197-23-000116:0
7,407 shares@ US$85.720.1% of flowClass A common stockSEC:0001381197-23-000113:0
13,188 shares@ US$87.920.3% of flowClass A common stockSEC:0001381197-23-000111:0
5,510 shares@ US$86.040.1% of flowClass A common stockSEC:0001381197-23-000107:0
13,188 shares@ US$87.800.3% of flowClass A common stockSEC:0001381197-23-000103:0
25 of 168 declarations
About Frank Thomas AJ
Frank Thomas AJ is a long-tenured executive at Interactive Brokers Group, where he serves as Executive Vice President. Public company materials identify him as part of the firm’s senior leadership and indicate that he joined the company in 1985. His career has been closely tied to the development of Interactive Brokers’ early market-making systems and the broader technology infrastructure that supported the firm’s expansion. Corporate biographies note that he was instrumental in building the company’s early market making systems, making him part of the technical and operational foundation of the business. In a highly competitive electronic brokerage environment, Frank Thomas AJ’s background appears to sit at the intersection of trading technology, market operations, and brokerage infrastructure. Interactive Brokers, a U.S.-listed financial services company, built its reputation on automation, direct market access, and system-driven execution, and his tenure suggests a role in helping scale those capabilities over time. The available public record does not provide a full account of every prior title or a detailed list of decisions attributable to him personally, so the most accurate profile is a measured one: a key executive associated with the firm’s technological modernization and market-making execution capabilities. His career reflects the value of leaders who combine engineering insight with capital-markets execution in a global, technology-forward brokerage platform.
