Carl R. Christenson is CEO & Chairman at Altra Industrial Motion Corp. (AIMC). They have made 31 open-market trades across 3 companies since 2006, most recently 2026-05-06.
CIK 0001383274
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.
8 open-market purchases totalling $708K since 2009, against 23 sales. Across 6 scored buys the stock is up 28.8% at ninety days, and 21.3 points ahead of the S&P over the same stretch.
6 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| AIMC | 179,319 | $11.1M |
| IEX | 7,156 | $1.7M |
| OMG | 5,790 | — |
| Total | $12.8M |
Shares reported on the most recent Form 4, priced at the 2026-05-08 close. 1 holding could not be priced and is excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 17% | 83% | 83% |
| Avg Move | -3.3% | +0.5% | +28.8% |
| Alpha | -0.5% | -2.3% | +21.3% |
| Scored | 6 | 6 | 6 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| IEX | BUY | 2025-11-05 | 2025-11-07 | $169.41 | $102K | -5.0% | +3.4% | +25.1% |
| AIMC | SELL | 2021-05-06 | 2021-05-10 | $65.65 | $4.0M | +0.0% | +1.7% | -6.9% |
| AIMC | SELL | 2021-01-06 | 2021-01-07 | $60.00 | $300K | -15.5% | -10.1% | -9.6% |
| AIMC | SELL | 2020-11-25 | 2020-11-30 | $57.09 | $1.1M | -5.6% | -3.8% | +7.2% |
| AIMC | SELL | 2020-11-09 | 2020-11-12 | $51.64 | $1.0M | +10.7% | +1.2% | +8.6% |
| AIMC | SELL | 2020-10-16 | 2020-10-19 | $42.00 | $1.1M | +8.6% | +37.3% | +42.1% |
| AIMC | BUY | 2020-03-13 | 2020-03-16 | $19.95 | $112K | +25.4% | +13.5% | +91.7% |
| AIMC | BUY | 2020-03-10 | 2020-03-12 | $23.34 | $231K | -17.8% | +3.3% | +65.8% |
| AIMC | BUY | 2018-10-30 | 2018-11-06 | $31.44 | $157K | -1.5% | -18.5% | -10.9% |
| AIMC | SELL | 2017-09-13 | 2017-09-15 | $47.00 | $470K | +0.9% | +2.6% | -2.3% |
| AIMC | SELL | 2017-08-25 | 2017-08-29 | $46.00 | $460K | +1.2% | +6.6% | +3.4% |
| AIMC | SELL | 2017-08-01 | 2017-08-02 | $45.00 | $450K | +1.0% | +2.6% | +7.8% |
| AIMC | SELL | 2017-06-02 | 2017-06-06 | $44.00 | $440K | +0.4% | -8.5% | +6.5% |
| AIMC | SELL | 2017-05-03 | 2017-05-05 | $43.32 | $1.7M | -3.7% | -1.4% | +1.7% |
| AIMC | SELL | 2016-11-14 | 2016-11-16 | $34.73 | $1.4M | -3.4% | +4.1% | +13.1% |
| AIMC | SELL | 2016-08-11 | 2016-08-12 | $28.63 | $759K | +0.4% | -3.5% | +15.4% |
| AIMC | SELL | 2016-05-13 | 2016-05-17 | $27.35 | $1.6M | +2.1% | +4.2% | +8.4% |
| AIMC | SELL | 2016-05-04 | 2016-05-05 | $28.26 | $848K | -3.9% | +0.9% | +0.1% |
| OMG | BUY | 2014-08-18 | 2014-08-20 | $26.06 | $26K | N/A | N/A | N/A |
| OMG | BUY | 2014-05-21 | 2014-05-21 | $28.94 | $29K | N/A | N/A | N/A |
| AIMC | SELL | 2014-02-25 | 2014-02-26 | $35.14 | $879K | -10.3% | +0.5% | +0.5% |
| AIMC | SELL · 10b5-1 | 2013-03-21 | 2013-03-22 | $28.00 | $280K | -10.3% | +0.5% | +0.5% |
| AIMC | SELL | 2013-03-08 | 2013-03-12 | $27.00 | $270K | -10.3% | +0.5% | +0.5% |
| AIMC | SELL · 10b5-1 | 2013-03-06 | 2013-03-08 | $26.00 | $474K | -10.3% | +0.5% | +0.5% |
| AIMC | SELL · 10b5-1 | 2013-02-01 | 2013-02-05 | $25.00 | $44K | -10.3% | +0.5% | +0.5% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.