Michael Irizarry is CTO & VP at UNITED STATES CELLULAR CORP (USM). They have made 23 open-market trades across 1 company since 2007, most recently 2025-07-30.
CIK 0001232376
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 23 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| USM | 115,076 | $8.9M |
Shares reported on the most recent Form 4, priced at the 2025-08-01 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| USM | SELL · 10b5-1 | 2023-04-10 | 2023-04-11 | $22.15 | $834K | -5.1% | -31.8% | -21.0% |
| USM | SELL | 2022-04-05 | 2022-04-06 | $31.05 | $1.3M | -3.2% | -4.3% | -5.2% |
| USM | SELL | 2021-04-09 | 2021-04-12 | $36.35 | $2.1M | -3.0% | +0.8% | +0.3% |
| USM | SELL | 2020-06-02 | 2020-06-03 | $32.24 | $993K | -2.5% | -5.2% | +10.6% |
| USM | SELL | 2020-04-29 | 2020-05-01 | $33.14 | $836K | -5.5% | +9.8% | -0.8% |
| USM | SELL | 2019-05-06 | 2019-05-06 | $48.02 | $1.2M | -2.6% | -5.0% | -20.1% |
| USM | SELL | 2018-11-06 | 2018-11-06 | $52.33 | $263K | +7.2% | +5.4% | +9.3% |
| USM | SELL | 2018-09-26 | 2018-09-27 | $43.40 | $152K | +8.1% | +3.7% | +17.2% |
| USM | SELL | 2018-08-06 | 2018-08-07 | $40.59 | $3.2M | +8.5% | +3.7% | +28.1% |
| USM | SELL | 2015-05-08 | 2015-05-12 | $39.31 | $118K | -9.7% | -3.2% | -3.2% |
| USM | SELL | 2015-05-04 | 2015-05-05 | $38.31 | $478K | -9.7% | -3.2% | -3.2% |
| USM | SELL | 2014-05-07 | 2014-05-07 | $42.27 | $207K | -9.7% | -3.2% | -3.2% |
| USM | SELL | 2014-05-06 | 2014-05-06 | $41.73 | $237K | -9.7% | -3.2% | -3.2% |
| USM | SELL | 2013-08-08 | 2013-08-08 | $43.26 | $200K | -9.7% | -3.2% | -3.2% |
| USM | SELL | 2013-08-08 | 2013-08-08 | $43.27 | $193K | -9.7% | -3.2% | -3.2% |
| USM | SELL | 2013-08-07 | 2013-08-08 | $42.74 | $486K | -9.7% | -3.2% | -3.2% |
| USM | SELL | 2011-04-28 | 2011-04-29 | $49.71 | $513K | -9.7% | -3.2% | -3.2% |
| USM | SELL | 2011-03-10 | 2011-03-10 | $48.86 | $12K | -9.7% | -3.2% | -3.2% |
| USM | SELL | 2010-05-11 | 2010-05-12 | $41.13 | $228K | -9.7% | -3.2% | -3.2% |
| USM | SELL | 2009-05-13 | 2009-05-13 | $40.84 | $71K | -9.7% | -3.2% | -3.2% |
| USM | SELL | 2008-06-23 | 2008-06-24 | $58.23 | $67K | -9.7% | -3.2% | -3.2% |
| USM | SELL | 2008-03-31 | 2008-04-01 | $55.10 | $176K | -9.7% | -3.2% | -3.2% |
| USM | SELL | 2008-03-31 | 2008-04-01 | $54.57 | $202K | -9.7% | -3.2% | -3.2% |
| USM | SELL | 2007-05-16 | 2007-05-18 | $74.56 | $2.1M | -9.7% | -3.2% | -3.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.