Grantham, Mayo, Van Otterloo & Co (GMO)
RNAM

Grantham, Mayo, Van Otterloo & Co (GMO)’s Avidity Biosciences RNAM Stock Holding History

Grantham, Mayo, Van Otterloo & Co (GMO)’s Portfolio RNAM Stock Details RNAM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-154,455
Closed -$11.1M – 713
2025
Q4 		$11.1M Buy
+154,455
New +$9.98M 0.03% 230

Other funds holding RNAM

CC
Corsicana & Co Corsicana, Texas $158M AUM

Grantham, Mayo, Van Otterloo & Co (GMO)'s RNAM Position: Q1 2026 in Review

Grantham, Mayo, Van Otterloo & Co (GMO) sold out of Avidity Biosciences (RNAM) in Q1 2026, closing a stake of 154,455 shares — an estimated $11.1M sold.

Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in RNAM in Q4 2025 and held it in 1 quarter. The position peaked at $11.1M in Q4 2025. 1 fund tracked by Wall St. Rank holds RNAM as of Q1 2026.

  • Grantham, Mayo, Van Otterloo & Co (GMO) reported no remaining Avidity Biosciences position as of Q1 2026 after selling out during the quarter.
  • Grantham, Mayo, Van Otterloo & Co (GMO) sold 154,455 Avidity Biosciences shares in Q1 2026, an estimated $11.1M.
  • Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in Avidity Biosciences in Q4 2025 and held it in 1 quarter.
  • Grantham, Mayo, Van Otterloo & Co (GMO)'s Avidity Biosciences position peaked at $11.1M in Q4 2025.
  • 1 fund tracked by Wall St. Rank held Avidity Biosciences as of Q1 2026.

Based on Grantham, Mayo, Van Otterloo & Co (GMO)'s 13F filing for Q1 2026, filed 14 May 2026.