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EdgarHawk

Mark S Shapiro

See Remarks

Director Officer

Latest: Officer & Director buying · May 2026

6 filings analyzed · 2 companies · Latest 2026-05-13

Companies

Company Buys Sells Direction
TKO Group Holdings, Inc. TKO 2 8 Net selling
Endeavor Group Holdings, Inc. EDR 0 5 Net selling

Activity

May 2026
medium
Buy
10,807 shares
$1,999,868
Significance 5/10

Officer Mark Shapiro purchases ~10.8k TKO shares on open market; second buy after 12 prior sales.

Mark Shapiro, an officer and director of TKO, purchased approximately 10,800 shares across two open-market transactions, marking his second purchase in the three-year filing window after a long selling sequence. The purchase occurs with the stock trading notably below its 52-week high and down over recent months, suggesting Shapiro is buying into a pullback. However, his track record at TKO presents a cautionary note: all four of his prior sells at this company have been poorly timed at the 30-day mark—the stock rose after each exit—though at the 90-day horizon one of those sales proved well-timed as the stock subsequently declined. His single prior open-market purchase at TKO (made in November 2023) remains too recent to evaluate, so the outcome of that repeat buying pattern is still unknown. The company itself remains profitable with strong revenue growth, though the valuation appears stretched relative to current earnings, creating tension between the fundamental health and the entry price.

January 2026
medium
Sell
14,363 shares
$2,901,039
Significance 6/10

Mark S. Shapiro sold 14,363 TKO shares at $201.98 on 2026-01-22; stock down -7.2% in 30 days, now $200.13.

Mark S. Shapiro sold 14,363 shares (14.4K shares) for $2,901,038.74 ($2.9M) at $201.98, reducing his TKO holdings by 10.8% to 118,400 shares post-transaction. The stock has declined -7.2% over 30 days to the current $200.13, marking -8.2% from its 52-week high of $217.98. Shapiro's cross-ticker sell track record shows a 38.46% well-timed rate across 14 prior sales, but his prior four trades at TKO have been poorly timed at the 90-day mark—three separate sales over the past 14+ months were followed by positive returns (+9.4%, +6.0%, and +11.2% respectively), indicating he sold before subsequent rallies. This recent sale on 2026-01-22, following another sale just 17 days prior on 2026-01-05, continues a pattern of unsuccessful timing at this specific ticker despite near-term price weakness.

low
Sell
32,022 shares
$6,535,050
Significance 4/10

Mark S. Shapiro sold 32,022 shares of TKO at $204.08; retains 104,842 shares post-transaction.

Mark S. Shapiro sold 32,022 shares (32.0K shares) of TKO at $204.08 on 2026-01-05 for $6,535,049.76 ($6.5M), reducing his holdings by 23.4% relative to pre-transaction levels. His cross-ticker track record shows 13 prior sells with a 90-day well-timed rate of 38.46%, indicating only modest success in timing exits; at TKO specifically, his prior 2 measurable sales (on 2025-01-03 and 2024-09-16) both generated positive 90-day returns of +6.0% and +23.7%, meaning the stock rose after he sold both times. The current price of $203.65 is 6.6% below the 52-week high of $217.98, and the stock is still trading near the sale price. The company is growing revenue at +67.4% annually and recently reported $1.1B quarterly revenue, though the P/E of 1697.08 reflects suppressed net income relative to valuation; this sale occurs in a strong growth backdrop but with elevated valuation multiples.

February 2025
medium
Sell
98,135 shares
$2,950,081
Significance 5/10

Mark S Shapiro sold 98,135 shares (33.1% of holdings) at blended $30.06 in 3 transactions on Feb 24-25.

Shapiro executed 3 separate sales totaling 98,135 shares for $2,950,080.73 at blended average price $30.06, reducing his holdings from 296,302 shares to 198,167 shares—a 33.1% reduction of his position. This represents a substantial liquidation rather than routine portfolio rebalancing. His prior sales at EDR show a mixed track record: 2 of his 5 prior trades at this ticker were well-timed at the 90-day mark (meaning the stock declined after the sale), while 3 were not. His cross-ticker history shows 10 prior sells with an average 90-day return of +6.6%, indicating his prior sales were generally poorly timed (stock rose after he sold), though his 90d well-timed rate of 22.22% is below 50%. The current stock price of $30.88 sits 13.0% below the 52-week high and declined 2.3% over the past 30 days. Against the backdrop of Endeavor's recent $-264.7M net loss last quarter despite 13.1% annual revenue growth, this material reduction in insider holdings merits investor attention to the underlying business drivers.

January 2025
medium
Sell
31,666 shares
$4,494,672
Significance 6/10

Shapiro sells 31,666 TKO shares for $4.5M; post-trade holdings 73.7K (-30.1%). 9 prior sells with poor cross-ticker timing (avg 90d +6.6%).

Mark Shapiro sold 31,666 shares at $141.94 on 2025-01-03, reducing his TKO holdings by 30.1% to 73.7K shares. His cross-ticker track record shows 9 prior sales with an average 90-day return of +6.6% and a 90d well-timed rate of 22.22%, indicating that when Shapiro has sold across his portfolio history, stocks have generally risen afterward. At this specific ticker, his prior 2024 sale occurred when the stock subsequently gained 23.7% over 90 days, another instance of poorly-timed exits. The company is undergoing strong growth (FY revenue +46.9%) but remains unprofitable, creating a valuation backdrop where executive liquidity decisions merit investor attention. The current stock price of $141.63 is 3.8% below the 52-week high, leaving the timing of this sale—relative to any upcoming catalysts or quarterly results—as an open question for investors tracking his positioning.

September 2024
medium
Sell
31,026 shares
$3,560,544
Significance 6/10

Mark S. Shapiro sold 31,026 shares of TKO at $114.76 on 2024-09-16, reducing holdings by 42.4% to 42,156 shares.

Mark S. Shapiro sold 31,026 shares (31.0K shares) for $3,560,543.76 ($3.6M), reducing his position by 42.4% from 73,182 shares to 42,156 shares. At the transaction price of $114.76, the stock was trading 2.3% below its 52-week high of $120.00. Shapiro's cross-ticker sales history shows a 25.00% well-timed rate with an average 90-day post-sale return of 4.4%, indicating his sells have been modestly profitable on average—though this particular sale occurred near recent highs with limited subsequent decline. The company reported strong recent fundamentals with revenue growth of 46.9% and latest quarterly revenue of $851.2M, though it remains unprofitable on a full-year basis, which may explain why a senior insider would reduce exposure despite growth momentum.

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