The big insider news from Thursday came in a Form 4 filing by RA Capital Management.

The firm reported a purchase of 2,200,000 shares of Nkarta Inc $NKTX, representing an ownership stake of 23%.

The largest insider transaction on today's list is a Form 4 filing by Simon Groom, who reported a $49 million purchase in the broadcasting company iHeartMedia $IHRT.

The largest insider transaction on today's Hot List is a Form 4 filing by Ernest Garcia II, CEO and co-founder of Carvana $CVNA.

CVNA just raised an additional $1 billion via a private offering of perpetual preferred stock, and Garcia has...

It’s been just over three weeks since Elon Musk filed his original 13G and revealed an investment in Twitter $TWTR.

Now, it looks like he’s about to take control of the entire...

This morning, the big market news is that Twitter $TWTR and Elon Musk are getting close to striking a deal for the eccentric billionaire to take the company private.

This is a dramatic turn of events from just last week, when the company...

The largest insider buy on today's list is a Form 4 filing by Jan Barta of Pale Fire Capital.

Barta now owns 2,658,550 shares of Groupon $GRPN, which represents an ownership stake of approximately 9%.

In the activist world, Bill Ackman announced that Pershing Square exited its position in Netflix $NFLX, as the stock was plunging lower by 35% on the heels of a disappointing earnings report.

It’s estimated that the hedge fund lost over $400...

The only insider buy on today's Hot List is a Form 4 filing by the CEO of Solo Brands $DTC, who reported a purchase of roughly $486,200.

In the options market, there was bullish options activity in the social media platform Pinterest Inc $PINS...

Today’s Hot List is a short one.

Durable Capital Partners continues to build its position in the language-learning website and mobile app Duolingo Inc $DUOL.

We’ll lead off today with an update on the big activist story we’re all paying attention to.

After meeting last week to discuss Elon Musk’s takeover offer, Twitter’s $TWTR board announced the adoption of a “poison pill” that makes it...

In a letter to the board of directors, Elon Musk has made an unsolicited bid to buy 100% of Twitter $TWTR in an all-cash deal.

He’s offering $54.20 per share, which represents a 54% premium from when he began investing in the stock and a 38%...

The largest insider transaction on today’s list is a Form 4 filing by Jan Barta of Pale Fire Capital.

Barta continues to grow his position in Groupon $GRPN, as this is the second large Form 4 filing in the last two weeks.

Abdiel Capital Management LLC reported a $2.6 million purchase in the cloud computing and enterprise software stock Appian Corporation $APPN.

The firm now owns more than 5.9 million shares, representing a 15% ownership interest.

It didn’t even last a week!

The Elon and Twitter $TWTR team-up is over before it ever got started.

In a tweet last night, Twitter CEO...

The largest insider transaction on today's list is a Form 4 filing by Durable Capital Partners LP.

After disclosing a purchase of roughly $25 million in Duolingo Inc $DUOL, the firm now owns 9% of the language-learning platform.

It’s been a wild few weeks of insider activity.

Today, we have another big splash, brought to us by Warren Buffett’s Berkshire Hathaway $BRK.A.

The investment conglomerate filed both a Form 3 and a Form 4 last night, revealing a brand...

Before we dive into today’s note, we have an update on the Elon-versus-Twitter saga that’s been unfolding all week.

On Tuesday evening, Musk finally filed the appropriate Form 13D we were waiting for, reflecting his intentions as an “active”...

We had a feeling this one would be fun to watch unfold...

After just 24 hours of speculation and buzz about Elon Musk becoming the largest shareholder of Twitter, we already have some important follow-up news.

In an...

The big news of the day is centered around an SEC filing by the wealthiest man in the world.

This morning, Elon Musk disclosed a 9.2% ownership stake in Twitter $TWTR in a 13G filing. Musk has amassed roughly 73.5 million shares for a value of...

We begin today’s discussion with a special situation that took shape this week.

At the end of the day, what we’re trying to do here is create a universe of stocks that are experiencing bullish activity from investors who have better...

Something we’ve discussed a lot is the bullish information we receive when there is a multitude of buying by separate insiders in the same name.

Revolution Medicines $RVMD director Thilo Schroeder continues to appear on our list with another Form 4 filing.

He’s reported four separate purchases over the trailing month for a combined total of over $10 million.

The largest insider buy on today's list is a Form 4 filing by William Clay Ford Jr., the executive chair of Ford Motor $F, who reported a purchase of roughly $4.5 million.

Coliseum Capital Partners continues to build its position in GMS Inc $...

Turtle Creek Asset Management continues to build its position in the door and window manufacturer JELD-WEN Holding $JELD. 

Friday’s Form 4 filing is its fourth filing in just two weeks and reveals an additional $16.5 million of share purchases...