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William Frels - Mairs & Power
Period:    Q1 2026
Portfolio date:    31 Mar 2026
No. of stocks:    245
Portfolio value:    $9,786,094,433
Holdings Activity Buys Sells    History
Holding/activity history for  Magnite, Inc. (MGNI)
← All MGNI superinvestors
Period Shares % of Portfolio Activity % Change to Portfolio Price Value Filing
2025   Q3 0 0.00 Sell 100.00% <0.01 $20.72–26.65 · VW $23.68i SEC
2025   Q2 10,000 <0.01 Buy <0.01 $8.22–24.46 · VW $15.53i $241,200 SEC
Price snapshot:
Current price$20.41
52-week low$10.82
52-week high$26.65
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Quotes delayed 15 minutes for NASDAQ, NYSE and AMEX. 13F holdings sourced from SEC EDGAR filings.
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