The largest insider transaction on today's list is a Form 4 filing by Alphabet Inc.

The tech giant reported a $17 million purchase in GitLab $GTLB.

Deerfield Asset Management continues to make splashes in the biotech space.

Its latest filing disclosed a whopping $21.7 million purchase in Nuvalent $NUVL.

The largest insider transaction on today’s list was reported in a Form 4 filing by Vertiv Holdings $VTR Director Joseph Deangelo.

Deangelo disclosed a purchase of VTR worth roughly $1 million.

The most significant insider transaction on today's list comes in a 13D from Carl Icahn.

Icahn reported a new position in the mid-cap packaging and container stock, Crown Holdings $CCK.

The largest insider transaction on today's list is a Form 4 filing by the chairman and CEO of American Assets Trust $AAT, Ernest Rady.

Rady reported the purchase of $1.3 million.

The largest insider transaction on today's list was reported in a Form 4 filing by former Coca-Cola $KO director Herbert Allen.

Allen reported a purchase worth roughly $2 million.

Our list is full of insider buys by company CEOs today.

The largest insider transaction is a Form 4 filing by the CEO of Biohaven Pharmaceutical Holding Company $BHVN, Vlad Coric.

The largest insider buy on today's list is a Form 4 filing by CD&R Boulder Holdings LP.

The firm disclosed the purchase of approximately $6 million worth of shares in Beacon Roofing Supply $BECN.

The Twitter-and-Elon Musk saga has finally come to an end, as the eccentric billionaire has completed a $44 billion acquisition of the struggling social media company.

The stock will be delisted from the New York Stock Exchange today.

We got a new Form 13D from our favorite corporate raider yesterday, as Carl Icahn revealed  an increased ownership stake in Southwest Gas $SWX.

Icahn now owns 9.8% of outstanding shares, a very slight uptick from the 9.7% he reported on September 7.

The largest insider transaction on today’s list was reported in a Form 4 filing by the Swiss investment company BB Biotech AG.

The biotechnology-focused fund reported a purchase worth roughly $2.2 million in MacroGenics $MGNX.

The largest insider transaction on today’s list is a Form 4 filing by FB Financial Corporation $FBK Chairman of the Board James Ayers.

Ayers reported a purchase worth roughly $1.9 million.