The largest insider transaction on today’s list was filed by The Estee Lauder Companies $EL director Paul Fribourg.

Fribourg revealed a purchase of $5,724,373 in his own company’s stock.

The CEO of Markel Corp $MKL just put a little over $200,000 of his own cash into the stock—not a massive bet, but definitely worth paying attention to.

We like to see CEO purchases come with a little more size than this.

Here’s The Hot Corner, with data from February 7, 2025:

Control Empresarial de Capitales S.A., the investment firm tied to Mexican billionaire Carlos Slim, just made a massive bet on PBF Energy Inc $PBF, scooping up $4,305,060 worth of stock.

Last but not least, two Merck & Co $MRK directors just made a significant statement, collectively buying $1,577,499 worth of their company’s stock.

When not just one but multiple high-level...

We’ve got some notable insider transactions hitting the tape.

JetBlue Airways $JBLU Director Nik Mittal just went all in, snapping up 100,000 shares of JBLU.

After a brutal post-earnings drop on January 28, this insider move signals a strong bet on a turnaround.

With Mittal’s private equity background, he likely sees value the market is missing.

Here’s The Hot Corner, with data from February 6, 2025:

When the boss buys, it matters: Olin Corporation $OLN president and CEO just dropped $203,446 on company stock.

And Wellington Management just increased its Coterra Energy $CTRA stake from 9.67% to 11.10%.

Wellington is a heavyweight with a strong track record in energy. When a major firm increases its position, it signals confidence in future upside.

We just got some interesting insider action from a few big names. Let’s break it down.

Control Empresarial de Capitales S.A. just dropped $1,098,968 on a fresh PBF Energy $PBF buy.

This firm, linked to Mexican billionaire Carlos Slim, has stakes in everything from energy to media. When they make a move, it’s worth watching.

Here’s The Hot Corner, with data from February 5, 2025:

Long Focus Capital Management is taking a big bite of Herbalife $HLF with a 5% stake.

This hedge fund manages over $666M, with major positions in Comcast $CMCSA, Alibaba $BABA, and Intel $INTC.

Last but not least, James W. Ayers, the Executive Chairman of FB Financial $FBK, just bought 4,000 shares of his own company.

Thanks to everyone who joined us for today's Hot Corner Insider Weekly Strategy Session.

Pleasant Lake Partners LLC made a notable move in 1-800-FLOWERS.COM $FLWS. The investment manager acquired 724,700 FLWS shares, a purchase worth approximately $5.7 million.

Meanwhile, Pzena Investment Management increased its stake in Magna International Inc $MGA, filing a 13G that reflects a rise in ownership from 9.15% to 10.00%.

Here’s The Hot Corner, with data from February 4, 2025:

On the insider front, Director Robert Stallings disclosed a modest purchase of Texas Capital Bancshares $TCBI, buying shares valued at $250,434.

Today's most significant insider transaction comes straight from a Form 4 filing by none other than Warren Buffett.

Uncle Warren just scooped up 2,308,119 shares of Sirius XM Holdings $SIRI—a $54 million bet—pushing Berkshire Hathaway’s stake to 35.35%.

When Buffett adds, it’s worth paying attention.

Here’s The Hot Corner, with data from February 3, 2025:

Meanwhile, hedge funds are making moves in biotech:

• RA Capital Management disclosed a $50 million purchase in 89bio $ETNB. This is a fund known for backing early-stage biotech names before big breakouts. Their track record includes early stakes in Moderna in 2015.
• Paradigm Biocapital Advisors just filed a 13G for Edgewise Therapeutics $EWTX, reporting a 5.00% stake.

Another insider transaction to hit the tape was from Platinum Equity LLC.

A Form 4 filing reveals a $32.5 million purchase...

Director Elizabeth Davis just put nearly $200,000 on the line for 10,725 shares of Comstock Resources $CRK, a bold bet on the energy space.

Here’s The Hot Corner, with data from January 31, 2025:

Meanwhile, over in the financial sector, Timothy Hunter of Northwest Bancshares $NWBI scooped up 10,000 shares, signaling confidence in the regional banking sector.

Today's standout insider activity comes from Citadel Advisors, which filed an initial 13G revealing a 5.10% stake in Arvinas $ARVN.

When firms like Citadel and high-level executives put skin in the game, it pays to take notice.

Meanwhile, in a Form 4 filing, Adobe Inc $ADBE director David Ricks disclosed a purchase of 2,250 shares, a clear sign of confidence from the inside.

Here’s The Hot Corner, with data from January 30, 2025:

Pzena Investment Management filed an initial 13G for Advance Auto Parts $AAP revealing a stake of 5.50%.

Last but not least, former Visa CEO Alfred Kelly Jr, who joined General Motors’ $GM board of directors in September, bought 12,000 shares of GM.

Today's standout insider transaction comes from Ally Financial $ALLY CEO Michael G. Rhodes, who just made a bold move, buying 25,634 shares worth roughly $1 million.

When a CEO puts their own money on the line, it's always worth paying attention.

Here’s The Hot Corner, with data from January 29, 2025:

Last but not least, John C. Malone is back at it, adding to his stake in The Liberty Braves Group $BATRA with a fresh $935,450 buy.

Thanks to everyone who joined us for today's Hot Corner Insider Weekly Strategy Session.

Today’s standout insider transaction comes from Robert W. Stallings, director of Texas Capital Bancshares $TCBI.

Stallings just made a bold move, scooping up 7,676 TCBI shares for a total of $146,705.

Here’s The Hot Corner, with data from January 28, 2025:

Meanwhile, institutions are making waves too.

Victory Capital Management just increased its stake in Genpact Limited $G, filing a 13G that reveals a bump from 4.72% to 5.19%.

Today’s standout insider transaction comes from Russ Hutchinson, chief financial officer of Ally Financial Inc $ALLY.

Hutchinson made a significant purchase of 19,100 ALLY shares, totaling $753,473.

Here’s The Hot Corner, with data from January 27, 2025:

CFOs are often the secret sauce of insider trading.

They have unparalleled insight into the company’s financial health and future prospects—they know the numbers better than anyone else.

When a CFO puts their own money on the line, it can signal strong confidence in the stock.