Insider Trading Report: Top Stock Buys and Sells Disclosed Last Week

TLDR

• Palantir executives sold over $120 million in stock on May 20 to cover tax obligations tied to vesting RSUs
• TWFG director Michael Doak bought $620,000 in company shares near its 52-week low
• AMC CEO Adam Aron purchased 250,000 shares worth $344,350, raising his stake to 2.44 million shares
• CVS director Larry Robbins sold $317 million worth of shares, cutting his indirect holdings by 41%
• Taiwan Semiconductor saw both a buy and a sell from two vice presidents in the same week

Several company insiders made large trades last week, with activity ranging from multimillion-dollar sales at Palantir to buy-ins at struggling stocks near their 52-week lows.

Three Palantir executives — CEO Alexander Karp, President Stephen Cohen, and CTO Shyam Sankar — sold a combined $120 million in shares on May 20. All three sales were automatic transactions to cover tax withholding on vesting restricted stock units, conducted under pre-arranged Rule 10b5-1 plans. Palantir stock currently trades at $136.88.

Palantir Technologies Inc., PLTR

Notable Insider Buys

Michael Doak, a director at TWFG, spent $620,652 buying company shares across two days, May 20 and 21. He purchased at prices between $18.52 and $18.79. TWFG stock is down 33% over the past six months and trades near its 52-week low.

AMC Entertainment CEO Adam Aron bought 250,000 shares at $1.38 each, totaling $344,350. His total holdings now sit at 2.44 million shares.

At Rivian Automotive, director Aidan Gomez bought 18,000 shares at $13.97 each, worth $251,460. He now holds 57,984 shares in the company.

At MarketWise, director Frank Stansberry purchased 20,100 shares on May 20 at a weighted average of $17.21, spending $345,921. The stock is up 27% year-to-date.

Clay Howard Geyer, COO of Black Rock Coffee Bar, spent $299,816 buying shares on May 21 and 22. The stock is down 75% over the past year and trades near its 52-week low.

Kalaris Therapeutics saw an affiliated fund controlled by director Srinivas Akkaraju buy 244,300 shares at $4.83 each, totaling $1,179,969, in a privately negotiated transaction.

Notable Insider Sells

CVS Health director Larry Robbins sold 3.37 million shares worth $317 million, cutting his indirect stake by 41%. He still holds 4.82 million shares.

Microsoft EVP Amy Coleman sold 1,262 shares at $411.34 each for $519,242, representing about 2.7% of her direct holdings.

At Taiwan Semiconductor, VP Tzu-Sou Chuang sold 200,000 shares worth $13.96 million, while VP Bor-Zen Tien bought 2,000 shares for $139,810 in the same week.

Nextpower President Howard Wenger sold 140,587 shares for roughly $17.2 million on May 20 and 21, following the exercise of performance-based stock options. The stock is up 133% over the past year.

At National Energy Services, director Yousif Al-Nowais sold 573,544 shares worth nearly $15 million at a weighted average of $26.14 per share. He still indirectly holds 4.25 million shares.

At ServiceNow, director Anita Sands sold 16,445 shares at $90.14 each, trimming about 35% of her stake.

Snap’s Chief Business Officer Ajit Mohan sold 44,785 shares at $5.60 each for $250,809, a small fraction of his total holdings.

Experts note insiders sell shares for many reasons, including tax obligations and portfolio management. Insider trades are one data point, not a definitive signal.

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