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Top Insider Buys of the Week

May 11, 2025

Every weekend, I dive into our insider activity tracker looking for the most interesting and bullish buys — and let me tell you, this week stood out with a rare mix of high-conviction buys.

Let’s break it down:

The most important insider buy this week came from Organon & Co $OGN.

Both the CEO and CFO stepped in together, scooping up nearly $400K worth of stock. 

You don’t often see that kind of coordinated action from the top two execs — and when you do, it usually means they’re expecting significant upside, and soon. 

Next, we’ve got MiMedx Group $MDGX, where the CEO Joseph H. Capper bought over $1.2 million worth. 

That’s a strong show of confidence in a biotech name that’s been flying under the radar.

Hillman Solutions $HLMN also saw some bullish buying — their CFO & Treasurer reported nearly $1 million in his filing last week.

That’s a meaningful move, especially in a tools & accessories name that’s at a long-term support level.

Then there’s Powell Industries $POWL. Kovitz Investment Group filed a 13G showing a 13.49% stake. This is not just a new investment but a sizable one at over $250 million.

It’s arguably the best-looking chart on the list too, with the stock stair-stepping higher since its 2022 bottom.

As long as we’re above 158, we want to be long with a target of 246 and 390 over longer timeframes.

We also saw two trades from Rep. Gil Cisneros — one in Microsoft $MSFT and one in Aris Water Solutions $ARIS. While the amounts weren’t massive, any activity from a sitting congressman gets a spot on our radar.

And finally, Caterpillar $CAT. 

It was a modest ~$120K buy from Director David MacLennan, but CAT isn’t just any stock — it’s a global industrial bellwether. 

If insiders are nibbling here, that says something about how they’re seeing the macro backdrop.

Enjoy the weekend. 

Steve