InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (22 ops.)
Insider track record
CEODisclosed buys
0
Disclosed sells
22
T+90 hit rate
33%
T+90 mean return
-0.5%
Across 9 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Explore the full record of transactions filed by SIEVERT G MICHAEL, Chairman & CEO. Director active across 3 companies, notably T-Mobile US, Inc.. Aggregated, 41 reports have been published. Split: 0 buy · 22 sells. Total volume traded: €81.5m. Activity tracked since 29 April 2021. The latest transaction was disclosed on 1 June 2026 (Attribution). Regulator: SEC (Form 4). The full history is openly available.
Declarations41 total
4,258 shares@ US$44.520.0040% mcap100.0% of flowCOMMON STOCKSEC:0001182438-26-000004:0
22,500 shares@ US$244.405.9% of flowCommon StockSEC:0001283699-25-000089:0
127,631 shares0Common StockSEC:0001283699-25-000066:0
3,141 shares0Common StockSEC:0001127602-25-009524:0
22,500 shares@ US$269.676.9% of flowCommon StockSEC:0001283699-25-000047:0
48,441 shares0Common StockSEC:0001283699-25-000027:0
40,000 shares@ US$239.2210.8% of flowCommon StockSEC:0001283699-24-000155:0
20,000 shares@ US$237.735.3% of flowCommon StockSEC:0001283699-24-000153:0
20,000 shares@ US$194.574.3% of flowCommon StockSEC:0001283699-24-000118:0
20,000 shares@ US$163.203.6% of flowCommon StockSEC:0001283699-24-000070:0
3,383 shares0Common StockSEC:0001127602-24-010332:0
7,521 shares@ US$163.341.4% of flowCommon StockSEC:0001283699-24-000044:0
20,000 shares@ US$163.713.6% of flowCommon StockSEC:0001283699-24-000036:0
64,093 shares0Common StockSEC:0001283699-24-000030:0
687 shares0Common StockSEC:0001127602-24-001635:0
96,500 shares@ US$147.5515.7% of flowCommon StockSEC:0001283699-23-000161:0
20,000 shares@ US$146.903.3% of flowCommon StockSEC:0001283699-23-000159:0
20,000 shares@ US$138.343.0% of flowCommon StockSEC:0001283699-23-000138:0
20,000 shares0Common StockSEC:0001283699-23-000100:0
20,000 shares@ US$142.813.1% of flowCommon StockSEC:0001283699-23-000092:0
7,947 shares0Common StockSEC:0001283699-23-000065:0
19,112 shares0Common StockSEC:0001283699-23-000056:0
20,000 shares@ US$144.683.3% of flowCommon StockSEC:0001283699-23-000043:0
55,060 shares0Common StockSEC:0001283699-23-000024:0
20,000 shares@ US$151.893.6% of flowCommon StockSEC:0001283699-22-000154:0
25 of 41 declarations
About SIEVERT G MICHAEL
Sievert G Michael is the President and CEO at T-Mobile US, Inc. He is responsible for the strategic direction of the company and product innovation. His expertise in the telecommunications sector is a major asset for T-Mobile US, Inc.
