Monday, May 11, 2026: insiders filed 27 open-market purchases and 196 sales

The S&P 500 (SPY) closed at 739.30, +0.23% on the day.

• Insiders of US-listed companies filed 27 open-market purchases (about $8.27M) at 20 companies and 196 open-market sales (about $568M) at 62 companies; see every filing of the day.
• The largest open-market purchase filed: EcoR1 Capital, LLC (10% owner) at Atara Biotherapeutics (ATRA), about $4.74M (SEC Form 4).
• The largest open-market sale filed: Liberty Mutual Foundation Inc. (10% owner) at Crescent Energy Company (CRGY), about $402M (SEC Form 4).
• 4 stock-trade reports from members of Congress were disclosed, 2 of them more than 45 days after the trade; the largest range: Rep. Chip Roy (TX21) disclosed a purchase of AESI, reported range $100,001 - $250,000 (official disclosure).
• 1558 fund and investor stake filings were recorded, led by Ontario Teachers Pension Plan Board disclosed a new position in PNC for Q1 2026 (SEC filing).
• 1 lobbying reports were posted with an amount; the largest: WESTERN DIGITAL reported $60K in lobbying for Q1 2026 through J.A. GREEN AND COMPANY (FORMERLY LLC) (lda.gov filing).