The engagement between Elon Musk and Twitter $TWTR is not going to end easily or quietly.

The mercurial entrepreneur tweeted a provocative meme early this morning, depicting himself as a big-brained genius for using legal mechanisms to force accurate bot data out of the Twitter board.

There’s been a lot of buzz about the dwindling likelihood of a Twitter $TWTR-Elon Musk tie-up this week.

As Musk’s team has reportedly cut off deal discussions around funding, the talking heads are telling us what price has been suggesting for months now: It’s not happening.

We were just talking about how we liked the strength from Baker Bros. Advisors’ largest holding, Seagen $SGEN, during yesterday’s weekly in-house analysts’ call.

This morning, the Wall Street Journal reported that Merck & Co. $MRK is in advanced discussions to acquire the cancer biotech for $40 billion.

Today’s Hot List is a short one.

Today's most significant insider transaction report is another Form 4 filing by Warren Buffett's Berkshire Hathaway $BRK.A.

Buffet continues to build his position in Occidental Petroleum $OXY, as he disclosed an additional purchase of roughly $582 million.

As the sleepy summer season carries on, so do the short Hot Lists.

Director Timothy J. Wilmott revealed an acquisition worth $1.2 million in Darden Restaurants $DRI.

Mario Gabelli’s GAMCO Investors filed a 13D revealing an ownership stake of 22.3% in Telesat Corporation $TSAT.

It’s another brief Hot List today.

Neil Gagnon, the CEO of Gagnon Advisors LLC, revealed a purchase of approximately 43,200 shares in the small-cap software company SecureWorks Corp $SCWX.

Today’s Hot List is a short one.

Patrick S. Barrett, executive vice-president and CFO of OceanFirst Financial Corp $OCFC, revealed a purchase of approximately 10,500 shares in his own stock.

The largest insider buy on today’s list is yet another Form 4 filing by Warren Buffett’s Berkshire Hathaway $BRK.A.

Buffett just revealed an additional purchase in Occidental Petroleum $OXY, as he continues to build his position in the energy stock.

The largest insider transaction on today’s list is a Form 4 filing by Nimish P. Shah, who reported a purchase of roughly $5.1 million of Tricida $TCDA.

Thomas Meth, the president of Enviva $EVA, reported a purchase of 8,600 shares, equivalent to $505,508 worth of stock.

The largest insider buy on today’s list is a Form 4 filing by Turtle Creek Asset Management, which revealed a 496,000-share purchase of JELD-WEN Holding $JELD.

In his latest Form 4, the chairman and CEO of Enviva $EVA revealed a purchase of approximately $1 million in the lumber and wood company.

The largest insider buy on today’s list is a Form 4 filing by Michael Gladstone, independent director at Day One Biopharmaceuticals $DAWN.

Gladstone disclosed the purchase of approximately $11.5 million worth of shares in the mid-cap biotech company.