Mark Reinstra

Chief Legal Officer Mark Reinstra sold 22.7K shares at $45.55 avg (scheduled 10b5-1 plan); stock down -68.0% from high, -19.2% in 30d.

Mark Reinstra, Chief Legal Officer & Corporate Secretary, executed 4 separate sales totaling 22,735 shares for $1,035,526.36 as part of a pre-arranged 10b5-1 trading plan adopted on 2026-02-19, reducing his holdings from 455,473 to 432,738 shares. This transaction is scheduled under a trading plan, not a discretionary decision. The stock has declined -19.2% over the past 30 days and -22.3% over 90 days, trading at $48.16 versus a 52-week high of $150.59 (-68.0%). His prior five sales at RBLX have been followed by negative 30-day returns (ranging from -6.5% to -28.2%) and negative 90-day returns (ranging from -20.4% to -26.4%), indicating his sales have historically preceded further stock declines at this ticker. Roblox remains unprofitable on a full-year basis with net income of $-246,000,000.00, though the company posted revenue growth of +35.8% year-over-year.

Chief Legal Officer Mark Reinstra sold 18,653 shares of RBLX for $1,080,807.82 on 2026-04-13 at blended $57.94

Mark Reinstra, Chief Legal Officer & Corporate Secretary, executed 2 separate sales totaling 18,653 shares for $1,080,807.82, reducing his holdings from 474,126 to 455,473 shares (a 3.9% reduction). The blended transaction price of $57.94 occurred at a point where RBLX was trading 57.8% below its 52-week high of $141.56, and the stock has declined 29.4% over the prior 90 days. His prior trades at RBLX (5 distinct transactions since February 2026) show consistent negative returns in the 30-day window post-sale, ranging from -6.5% to -22.5%, with all 5 measured outcomes moving lower. However, no 90-day outcomes are yet measurable on those prior trades, limiting assessment of longer-term timing accuracy at this ticker. Cross-ticker, his 20 prior sales averaged -0.9% return over 90 days with a 64.29% well-timed rate, suggesting modest but not exceptional sell timing across his broader trading history.

RBLX CLO Reinstra sold 17.2K shares across 3 separate transactions for $1.1M (blended avg $61.61); holds 377.1K shares post-sale.

Reinstra Mark, Chief Legal Officer and Corporate Secretary, executed 3 separate sales totaling 17,186 shares for $1,058,761.93 on 2026-02-20, representing a 4.4% reduction in his pre-transaction holding of 394,322 shares. The transactions occurred at blended average price of $61.61, at a time when RBLX trades 52.6% below its 52-week high of $141.56 and down 27.6% over 90 days. His same-ticker history shows 5 prior trades at RBLX, including 2 prior sells on 2025-11-20 that proved well-timed at the 90-day mark (resulting in -33.8% and -32.5% returns after the sales), though recent same-ticker sales on 2026-02-10 and 2026-02-13 are still within their measurement windows. Roblox remains unprofitable on a full-year basis despite 35.8% annual revenue growth and $1.4B in latest-quarter revenue. The recent clustering of sales from this executive—with measurable prior success at this ticker in timing downturns—warrants attention against the backdrop of the stock's sharp recent decline and the company's ongoing path-to-profitability questions.

Chief Legal Officer Mark Reinstra sold 60,000 RBLX shares at $63.94 on 2026-02-13, reducing stake to 394,322 shares; stock now -54.5% from 52-week high.

Reinstra sold 60,000 shares (-13.2% of pre-transaction holdings) at $63.94, with the stock currently trading at $64.44 but down 54.5% from its $141.56 52-week high. At RBLX specifically, his prior 3 measurable sells (all on 2025-11-20) posted 90-day returns of -34.5%, -33.8%, and -33.1%—all well-timed, as the stock fell substantially after each trade. The current filing occurs just 3 days after two other sales by the same executive, suggesting sustained liquidation activity. Roblox remains unprofitable (net income of $-255.6M in the latest quarter) despite 35.8% annual revenue growth, leaving the company dependent on market sentiment and user engagement rather than earnings power. The constellation of sustained insider selling, steep decline from peak, and continued unprofitability warrants close attention to whether this represents material concern about near-term valuation or company direction.

CLO Mark Reinstra sells 34.3K RBLX shares for $2.5M at blended $72.65; stock now $68.99 (-10.1% past 30d, -31.9% past 90d).

Reinstra sold 34,320 shares across 2 separate transactions on 2026-02-10 for $2,493,474.57 at prices near $72.61–$73.14, reducing his holdings by 7.0% to 454,322 shares. The stock has since declined sharply: -10.1% over the past 30 days and -31.9% over 90 days, now trading at $68.99, well below the 52-week high of $141.56 (-51.3%). His prior 5 sells at RBLX, all on 2025-11-20, have shown consistent negative 30-day returns ranging from -12.2% to -15.6%, suggesting a pattern of selling into weakness at this ticker. Roblox remains unprofitable with net income of $-255,626,000.00 on $1,359,646,000.00 quarterly revenue, though annual revenue growth is strong at +35.8%; the stock's sharp decline and his established RBLX sell history suggest sales driven by window-based opportunity rather than discretionary conviction signals.

Chief Legal Officer Mark Reinstra sold 16,782 shares ($1.6M) at blended $95.24; stock has fallen 29.1% in 30 days, 27.4% in 90 days.

Mark Reinstra (Chief Legal Officer & Corporate Secretary) executed 5 separate sales totaling 16,782 shares for $1,598,373.06 at prices ranging from $93.36 to $97.07, reducing his holdings by 4.3% to 370,532 shares. The timing is notable: his execution occurred near the upper end of recent trading action (current price $90.58 is -36.0% from the 52-week high of $141.56), and the stock has declined significantly post-trade across both 30-day (-29.1%) and 90-day (-27.4%) periods. Across his prior 5 trades at RBLX, Reinstra demonstrated strong timing acuity, with 4 of 5 prior sales showing negative 90-day returns post-execution (well-timed for downside avoidance). Against this backdrop of the company's current unprofitability (full-year net income was negative, latest quarter net income $-255,626,000.00) despite 28.7% annual revenue growth, the sale warrants close observation to determine whether it reflects confidence in having caught a sustainable price level or if it signals divergence between operational momentum and insider conviction.

CLO Mark Reinstra sold 15,820 shares at $117.71 avg ($1.9M total) on 2025-08-20; holds 373.7K shares post-sale.

Reinstra executed 4 separate sales totaling 15,820 shares for $1,862,242.63, representing a 4.1% reduction in his Roblox holdings. The stock is currently trading at $117.52, near the blended transaction average of $117.71, and sits 14.7% below its 52-week high of $137.79. Looking at his prior trades at RBLX specifically, his 5 previous sales resulted in 0 well-timed outcomes at the 90-day mark (stock rose after each sale), indicating his recent selling pattern at this ticker has not preceded declines. The company remains unprofitable with a net loss of $278,375,000.00 over its latest full fiscal year, though revenue growth of 28.7% suggests underlying business expansion despite current losses.

Chief Legal Officer Mark Reinstra sold 150,000 RBLX shares at $99.75 on 2025-06-16 (value $14,962,365.00), reducing holdings by 27.8% amid 77.2% 90-day rally.

Mark Reinstra, Chief Legal Officer & Corporate Secretary, sold 150,000 shares at $99.75, realizing $14,962,365.00, leaving holdings at 389,489 shares post-transaction. The sale occurred near the company's 52-week high of $102.65, during a period of significant momentum: the stock gained 77.2% over 90 days and 26.4% over 30 days. At Roblox specifically, Reinstra executed three rapid sales in May 2025 followed by this June sale, a pattern suggesting sustained liquidation activity. His cross-ticker track record shows 13 prior sells with a 90-day well-timed rate of 30.0%, but at RBLX his timing has not been favourable: one of two measurable prior RBLX sales (Feb-20) captured a +32.2% gain, while the other (Feb-11) showed -15.5% at 30 days before recovering +11.4% at 90 days. The company remains unprofitable (net income $-215.1M on $1.0B quarterly revenue), though it achieved +28.7% annual revenue growth, presenting a classic high-growth-but-unprofitable profile. The concentration of RBLX sales by this executive warrants investor attention to any potential signals about management's conviction in near-term performance.

Chief Legal Officer Mark Reinstra sold 50,000 RBLX shares at $84.64 on 2025-05-27 (total: $4.2M); stock now -0.8% from 52-week high.

Reinstra sold 50,000 shares (50.0K shares) for $4,232,025.00 ($4.2M) at $84.64, reducing holdings by 11.4% from 439,489 to 389,489 shares. The sale occurred near the stock's 52-week high of $85.43, with the current price at $84.79. This is his second consecutive sale at RBLX on 2025-05-20 (two separate trades); examining his SAME-TICKER HISTORY at RBLX, only 1 of 3 prior measurable sells were well-timed at the 90-day mark, suggesting inconsistent predictive accuracy at this ticker. Roblox remains unprofitable (net income: $-215.1M) despite strong 28.7% annual revenue growth ($1.0B quarterly revenue), creating tension between growth trajectory and current losses that may inform the C-suite's disposition timing.

Chief Legal Officer Mark Reinstra sells 15,852 shares at blended $80.66 in 2 transactions; stock at 52-week high of $81.81.

Reinstra sold 15,852 shares (15.9K shares) for $1,278,575.58 across 2 separate transactions on 2025-05-20, reducing his holdings by 3.9% to 389,489 shares. The sales occurred at $80.61 and $81.23, with a blended average price of $80.66, while the stock currently trades at $81.81, the upper bound of its 52-week range. At the same-ticker level, Reinstra's 5 prior RBLX sales show mixed timing: 3 of 5 were well-timed at the 90-day mark, but his most recent sell on 2025-02-20 saw the stock rise 32.2% over 90 days, indicating he missed subsequent gains. Roblox remains unprofitable (net income $-215.1M on $1.0B revenue last quarter) despite strong 28.7% annual revenue growth, a fundamental context that may inform the transaction but does not fully explain its timing relative to the stock's recent momentum.