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Andreas Halvorsen - Viking Global Investors
Period:    Q1 2026
Portfolio date:    31 Mar 2026
No. of stocks:    77
Portfolio value:    $35,748,670,967
Holdings Activity Buys Sells    History
Holding/activity history for  Ciena Corp. (CIEN)
← All CIEN superinvestors
Period Shares % of Portfolio Activity % Change to Portfolio Price Value Filing
2003   Q3 0 0.00 Sell 100.00% 1.12 $34.79–52.15 · VW $42.51i SEC
2003   Q2 306,714 1.12 Buy 1.12 $29.33–42.84 · VW $36.92i $11,099,000 SEC
Price snapshot:
Current price$445.44
52-week low$76.89
52-week high$637.51
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Quotes delayed 15 minutes for NASDAQ, NYSE and AMEX. 13F holdings sourced from SEC EDGAR filings.
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