Matthew D Kaufman Insider Trading Activity

Corporate InsiderChief Safety Officer · CIK 2044191

Total trades

$15.9M

Total volume

May 20, 2026

Last activity

RBLX

Roblox Corp

Matthew D Kaufman has been net-selling over the last 12 months with 0 purchases and 27 sales across 1 company.

RBLX is the most-traded position with 27 trades. The largest single transaction was a sale of RBLX for $2.0M on Feb 10, 2026.

Performance Scorecard

Forward stock performance after each transaction by Matthew D Kaufman. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.

PERIOD	AVG BUY RETURN	AVG SELL AVOIDED	SUCCESS RATE	TRADES
30 days	—	+3.5%	61%	31
90 days	—	+19.1%	86%	28
120 days	—	+27.5%	88%	26

Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.

Price & Trades

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RBLX · Roblox Corp

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Recent Trades

DATE	TICKER	TYPE	SHARES	PRICE	VALUE	Δ OWNED	ROLE
May 20, 2026	RBLX	Sell	12,756	$45.36	$579K	−3.5%	Chief Safety Officer
May 20, 2026	RBLX	Sell	190	$45.89	$9K	−0.1%	Chief Safety Officer
May 20, 2026	RBLX	Sell	1,410	$44.42	$63K	−0.4%	Chief Safety Officer
Apr 13, 2026	RBLX	Sell	100	$58.45	$6K	−0.0%	Chief Safety Officer
Apr 13, 2026	RBLX	Sell	13,225	$57.94	$766K	−3.5%	Chief Safety Officer
Feb 20, 2026	RBLX	Sell	1,050	$62.73	$66K	−0.4%	Chief Safety Officer
Feb 20, 2026	RBLX	Sell	8,589	$61.88	$531K	−2.8%	Chief Safety Officer
Feb 20, 2026	RBLX	Sell	5,588	$60.94	$341K	−1.8%	Chief Safety Officer
Feb 10, 2026	RBLX	Sell	27,634	$72.61	$2.0M	−8.2%	Chief Safety Officer
Feb 10, 2026	RBLX	Sell	2,400	$73.15	$176K	−0.8%	Chief Safety Officer
Nov 20, 2025	RBLX	Sell	660	$97.15	$64K	−0.3%	Chief Safety Officer
Nov 20, 2025	RBLX	Sell	6,000	$98.21	$589K	−2.3%	Chief Safety Officer
Nov 20, 2025	RBLX	Sell	3,200	$93.49	$299K	−1.3%	Chief Safety Officer
Nov 20, 2025	RBLX	Sell	2,526	$94.57	$239K	−1.0%	Chief Safety Officer
Nov 20, 2025	RBLX	Sell	4,886	$95.52	$467K	−2.0%	Chief Safety Officer
Nov 20, 2025	RBLX	Sell	3,595	$96.55	$347K	−1.5%	Chief Safety Officer
Nov 6, 2025	RBLX	Sell	6,000	$101.48	$609K	−2.3%	Chief Safety Officer
Nov 3, 2025	RBLX	Sell	6,000	$112.99	$678K	−2.2%	Chief Safety Officer
Oct 2, 2025	RBLX	Sell	6,000	$135.02	$810K	−2.2%	Chief Safety Officer
Sep 18, 2025	RBLX	Sell	6,000	$136.55	$819K	−2.1%	Chief Safety Officer
Sep 4, 2025	RBLX	Sell	6,000	$134.20	$805K	−2.1%	Chief Safety Officer
Aug 21, 2025	RBLX	Sell	6,000	$116.84	$701K	−2.1%	Chief Safety Officer
Aug 20, 2025	RBLX	Sell	5,621	$117.97	$663K	−1.9%	Chief Safety Officer
Aug 20, 2025	RBLX	Sell	1,230	$116.05	$143K	−0.4%	Chief Safety Officer
Aug 20, 2025	RBLX	Sell	3,945	$117.02	$462K	−1.3%	Chief Safety Officer
Aug 20, 2025	RBLX	Sell	3,412	$118.67	$405K	−1.2%	Chief Safety Officer
Aug 7, 2025	RBLX	Sell	6,000	$133.67	$802K	−2.0%	Chief Safety Officer
Jul 17, 2025	RBLX	Sell	6,000	$118.51	$711K	−1.9%	Chief Safety Officer
Jul 3, 2025 Filed 3d late	RBLX	Sell	6,000	$102.58	$615K	−1.9%	Chief Safety Officer
Jun 20, 2025	RBLX	Sell	6,000	$103.35	$620K	−1.8%	Chief Safety Officer
Jun 5, 2025	RBLX	Sell	6,000	$91.69	$550K	−1.8%	Chief Safety Officer