Stumpf Matthew Insider Trading Activity

Corporate InsiderCFO · CIK 2003065

Total trades

$12.8M

Total volume

May 28, 2026

Last activity

APP

AppLovin Corp

Stumpf Matthew has been net-selling over the last 12 months with 0 purchases and 15 sales across 1 company.

APP is the most-traded position with 15 trades. The largest single transaction was a sale of APP for $5.4M on May 28, 2026.

Performance Scorecard

Forward stock performance after each transaction by Stumpf Matthew. 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	—	-35.5%	18%	17
90 days	—	+2.9%	63%	16
120 days	—	-16.9%	63%	16

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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APP · AppLovin Corp

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Recent Trades

DATE	TICKER	TYPE	SHARES	PRICE	VALUE	Δ OWNED	ROLE
May 28, 2026	APP	Sell	9,052	$600.00	$5.4M	−4.9%	CFO
Nov 21, 2025	APP	Sell	200	$495.45	$99K	−0.1%	CFO
Nov 21, 2025	APP	Sell	120	$496.33	$60K	−0.1%	CFO
Nov 21, 2025	APP	Sell	160	$500.24	$80K	−0.1%	CFO
Nov 21, 2025	APP	Sell	230	$512.73	$118K	−0.1%	CFO
Nov 21, 2025	APP	Sell	311	$515.73	$160K	−0.2%	CFO
Nov 21, 2025	APP	Sell	245	$520.29	$127K	−0.1%	CFO
Nov 21, 2025	APP	Sell	1,338	$521.70	$698K	−0.7%	CFO
Nov 21, 2025	APP	Sell	80	$492.26	$39K	−0.0%	CFO
Nov 21, 2025	APP	Sell	240	$525.97	$126K	−0.1%	CFO
Nov 21, 2025	APP	Sell	440	$524.88	$231K	−0.2%	CFO
Aug 21, 2025	APP	Sell	100	$415.71	$42K	−0.1%	CFO
Aug 21, 2025	APP	Sell	200	$417.13	$83K	−0.1%	CFO
Aug 21, 2025	APP	Sell	937	$418.53	$392K	−0.5%	CFO
Aug 21, 2025	APP	Sell	2,537	$411.65	$1.0M	−1.4%	CFO
Jun 6, 2025	APP	Sell	4,864	$421.00	$2.0M	−2.4%	CFO
Jun 6, 2025	APP	Sell	4,850	$425.00	$2.1M	−2.5%	CFO