Qube Research & Technologies (QRT)’s Boston Scientific BSX Stock Holding History

Qube Research & Technologies (QRT)’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	$2.1M	Buy	49,300 +17,700	+56%	+$961K	﹤0.01%	2100
2026 Q1	$1.98M	Sell	31,600 -5,000	-14%	-$400K	﹤0.01%	2182
2025 Q4	$3.49M	Sell	36,600 -14,500	-28%	-$1.42M	﹤0.01%	1970
2025 Q3	$4.99M	Sell	51,100 -86,900	-63%	-$9M	0.01%	1749
2025 Q2	$14.8M	Sell	138,000 -102,200	-43%	-$10.3M	0.02%	1052
2025 Q1	$24.2M	Sell	240,200 -55,300	-19%	-$5.57M	0.03%	668
2024 Q4	$26.4M	Buy	295,500 +141,700	+92%	+$12.5M	0.03%	602
2024 Q3	$12.9M	Buy	+153,800	New	+$12.1M	0.02%	890

Other funds holding BSX

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Qube Research & Technologies (QRT)'s BSX Position: Q2 2026 in Review

Qube Research & Technologies (QRT) increased its Boston Scientific (BSX) stake by 61% in Q2 2026, buying an estimated $183M and bringing the position to 8,943,771 shares worth $382M. The position accounts for 0.35% of the portfolio, ranked #38.

Qube Research & Technologies (QRT) first reported a position in BSX in Q1 2018 and has held it in 25 quarters since. The position peaked at $644M in Q3 2025. 1,477 funds tracked by Wall St. Rank hold BSX as of Q2 2026.

Qube Research & Technologies (QRT) held 8,943,771 shares of Boston Scientific worth $382M as of Q2 2026.
Qube Research & Technologies (QRT) bought 3,373,891 Boston Scientific shares in Q2 2026, an estimated $183M.
Boston Scientific made up 0.35% of Qube Research & Technologies (QRT)'s portfolio in Q2 2026, its #38 holding.
Qube Research & Technologies (QRT) first reported a position in Boston Scientific in Q1 2018 and has held it in 25 quarters since.
Qube Research & Technologies (QRT)'s Boston Scientific position peaked at $644M in Q3 2025.
1,477 funds tracked by Wall St. Rank held Boston Scientific as of Q2 2026.

Based on Qube Research & Technologies (QRT)'s 13F filing for Q2 2026, filed 14 Aug 2026.