Grantham, Mayo, Van Otterloo & Co (GMO)
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Grantham, Mayo, Van Otterloo & Co (GMO)’s Boston Scientific BSX Stock Holding History

Grantham, Mayo, Van Otterloo & Co (GMO)’s Portfolio BSX Stock Details BSX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$930K Buy
21,800
+6,800
+45% +$369K ﹤0.01% 525
2026
Q1 		$941K Buy
+15,000
New +$1.2M ﹤0.01% 513
2020
Q2 		– Sell
-103,938
Closed -$3.39M – 758
2020
Q1 		$3.39M Buy
+103,938
New +$4.06M 0.03% 306
2014
Q1 		– Sell
-78,020
Closed -$938K – 572
2013
Q4 		$938K Buy
+78,020
New +$922K ﹤0.01% 461

Other funds holding BSX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Grantham, Mayo, Van Otterloo & Co (GMO)'s BSX Position: Q2 2026 in Review

Grantham, Mayo, Van Otterloo & Co (GMO) increased its Boston Scientific (BSX) stake by 45% in Q2 2026, buying an estimated $369K and bringing the position to 21,800 shares worth $930K. The position accounts for ﹤0.01% of the portfolio, ranked #525.

Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in BSX in Q4 2013 and has held it in 4 quarters since. The position peaked at $3.39M in Q1 2020. 1,477 funds tracked by Wall St. Rank hold BSX as of Q2 2026.

  • Grantham, Mayo, Van Otterloo & Co (GMO) held 21,800 shares of Boston Scientific worth $930K as of Q2 2026.
  • Grantham, Mayo, Van Otterloo & Co (GMO) bought 6,800 Boston Scientific shares in Q2 2026, an estimated $369K.
  • Boston Scientific made up ﹤0.01% of Grantham, Mayo, Van Otterloo & Co (GMO)'s portfolio in Q2 2026, its #525 holding.
  • Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in Boston Scientific in Q4 2013 and has held it in 4 quarters since.
  • Grantham, Mayo, Van Otterloo & Co (GMO)'s Boston Scientific position peaked at $3.39M in Q1 2020.
  • 1,477 funds tracked by Wall St. Rank held Boston Scientific as of Q2 2026.

Based on Grantham, Mayo, Van Otterloo & Co (GMO)'s 13F filing for Q2 2026, filed 13 Aug 2026.