Mark A. Black is VP at ACUITY INC. (DE) (AYI). They have made 18 open-market trades across 1 company since 2010, most recently 2026-09-01.
CIK 0001144215
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 18 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| AYI | 17,447 | $5.3M |
Shares reported on the most recent Form 4, priced at the 2026-09-03 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| AYI | SELL · 10b5-1 | 2026-09-01 | 2026-09-03 | $329.62 | $659K | -9.7% | -7.3% | — |
| AYI | SELL | 2017-11-03 | 2017-11-06 | $161.32 | $2.4M | -0.9% | -1.1% | -12.4% |
| AYI | SELL | 2017-07-14 | 2017-07-17 | $205.29 | $2.2M | +1.4% | -8.5% | -17.8% |
| AYI | SELL | 2016-11-09 | 2016-11-10 | $243.05 | $3.5M | +0.1% | -2.0% | -17.5% |
| AYI | SELL | 2016-11-09 | 2016-11-10 | $243.05 | $3.5M | +0.1% | -2.0% | -17.5% |
| AYI | SELL | 2016-07-06 | 2016-07-07 | $250.27 | $1.3M | +4.3% | +5.3% | -5.0% |
| AYI | SELL | 2016-04-11 | 2016-04-12 | $248.16 | $1.3M | +1.3% | -0.3% | +6.1% |
| AYI | SELL | 2015-11-04 | 2015-11-05 | $215.27 | $3.7M | -13.8% | +0.7% | -16.1% |
| AYI | SELL | 2015-07-06 | 2015-07-08 | $188.05 | $502K | -13.8% | +0.7% | +0.7% |
| AYI | SELL | 2014-10-30 | 2014-10-31 | $136.74 | $2.6M | -13.8% | +0.7% | +0.7% |
| AYI | SELL | 2013-10-30 | 2013-11-01 | $101.17 | $2.1M | -13.8% | +0.7% | +0.7% |
| AYI | SELL | 2013-04-10 | 2013-04-11 | $73.80 | $148K | -13.8% | +0.7% | +0.7% |
| AYI | SELL | 2012-11-16 | 2012-11-16 | $61.31 | $1.3M | -13.8% | +0.7% | +0.7% |
| AYI | SELL | 2012-07-18 | 2012-07-19 | $60.25 | $586K | -13.8% | +0.7% | +0.7% |
| AYI | SELL | 2012-02-15 | 2012-02-16 | $59.60 | $2.3M | -13.8% | +0.7% | +0.7% |
| AYI | SELL | 2012-01-17 | 2012-01-19 | $57.67 | $783K | -13.8% | +0.7% | +0.7% |
| AYI | SELL | 2011-01-25 | 2011-02-01 | $55.63 | $1.1M | -13.8% | +0.7% | +0.7% |
| AYI | SELL | 2010-07-26 | 2010-07-28 | $43.00 | $180K | -13.8% | +0.7% | +0.7% |
| AYI | SELL | 2010-04-16 | 2010-04-20 | $45.00 | $828K | -13.8% | +0.7% | +0.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.