Ostrum Asset Management
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Ostrum Asset Management’s Boston Scientific BSX Stock Holding History

Ostrum Asset Management’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
Q3 		$991K Buy
22,696
+651
+3% +$30.1K 0.05% 229
2026
Q2 		$941K Sell
22,045
-9
-0% -$489 0.05% 231
2026
Q1 		$1.38M Sell
22,054
-973
-4% -$77.8K 0.08% 183
2025
Q4 		$2.2M Sell
23,027
-818
-3% -$80.2K 0.11% 151
2025
Q3 		$2.33M Buy
23,845
+1,663
+7% +$172K 0.1% 173
2025
Q2 		$2.38M Sell
22,182
-4,742
-18% -$480K 0.11% 175
2025
Q1 		$2.72M Sell
26,924
-2,924
-10% -$294K 0.14% 141
2024
Q4 		$2.67M Sell
29,848
-10,161
-25% -$894K 0.23% 132
2024
Q3 		$3.35M Sell
40,009
-1,024
-2% -$80.7K 0.28% 109
2024
Q2 		$3.16M Sell
41,033
-246
-0.6% -$18K 0.28% 106
2024
Q1 		$2.83M Buy
41,279
+1,706
+4% +$110K 0.22% 142
2023
Q4 		$2.29M Buy
39,573
+8,402
+27% +$448K 0.2% 168
2023
Q3 		$1.65M Buy
31,171
+12,895
+71% +$676K 0.15% 210
2023
Q2 		$989K Buy
18,276
+16
+0.1% +$836 0.08% 320
2023
Q1 		$914K Buy
+18,260
New +$861K 0.08% 328

Other funds holding BSX

BlackRock
BlackRock New York $6.79T AUM 37.06% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Primecap Management
Primecap Management Pasadena, California $161B AUM 86.05% 1-Year Est. Return
Massachusetts Financial Services
Massachusetts Financial Services Boston, Massachusetts $296B AUM 23.14% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $824B AUM 37.44% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $234B AUM 43.58% 1-Year Est. Return

Ostrum Asset Management's BSX Position: Q3 2026 in Review

Ostrum Asset Management increased its Boston Scientific (BSX) stake by 3% in Q3 2026, buying an estimated $30.1K and bringing the position to 22,696 shares worth $991K. The position accounts for 0.05% of the portfolio, ranked #229.

Ostrum Asset Management first reported a position in BSX in Q1 2023 and has held it in 15 quarters since. The position peaked at $3.35M in Q3 2024. 1,274 funds tracked by Wall St. Rank hold BSX as of Q3 2026.

  • Ostrum Asset Management held 22,696 shares of Boston Scientific worth $991K as of Q3 2026.
  • Ostrum Asset Management bought 651 Boston Scientific shares in Q3 2026, an estimated $30.1K.
  • Boston Scientific made up 0.05% of Ostrum Asset Management's portfolio in Q3 2026, its #229 holding.
  • Ostrum Asset Management first reported a position in Boston Scientific in Q1 2023 and has held it in 15 quarters since.
  • Ostrum Asset Management's Boston Scientific position peaked at $3.35M in Q3 2024.
  • 1,274 funds tracked by Wall St. Rank held Boston Scientific as of Q3 2026.

Based on Ostrum Asset Management's 13F filing for Q3 2026, filed 13 Nov 2026.