Two Sigma Investments’s Boston Scientific BSX Stock Holding History

Two Sigma Investments’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 Q1	$314K	Buy	+5,000	New	+$400K	﹤0.01%	4047
2025 Q4	–	Sell	-9,000	Closed	-$879K	–	4089
2025 Q3	$879K	Buy	+9,000	New	+$932K	﹤0.01%	2668
2020 Q4	–	Sell	-6,900	Closed	-$264K	–	3351
2020 Q3	$264K	Buy	+6,900	New	+$266K	﹤0.01%	2657
2020 Q1	–	Sell	-19,400	Closed	-$877K	–	3138
2019 Q4	$877K	Sell	19,400 -3,300	-15%	-$138K	﹤0.01%	2306
2019 Q3	$924K	Buy	22,700 +6,200	+38%	+$263K	﹤0.01%	2057
2019 Q2	$709K	Buy	+16,500	New	+$635K	﹤0.01%	2226
2018 Q2	–	Sell	-17,000	Closed	-$464K	–	3326
2018 Q1	$464K	Buy	+17,000	New	+$462K	﹤0.01%	2508
2017 Q1	–	Sell	-79,600	Closed	-$1.72M	–	2916
2016 Q4	$1.72M	Buy	79,600 +67,700	+569%	+$1.48M	0.01%	1605
2016 Q3	$283K	Buy	+11,900	New	+$284K	﹤0.01%	2784
2016 Q1	–	Sell	-84,000	Closed	-$1.55M	–	2804
2015 Q4	$1.55M	Buy	+84,000	New	+$1.51M	0.01%	1221

Other funds holding BSX

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

Two Sigma Investments's BSX Position: Q1 2026 in Review

Two Sigma Investments increased its Boston Scientific (BSX) stake by 281% in Q1 2026, buying an estimated $555M and bringing the position to 9,411,231 shares worth $591M. The position accounts for 0.48% of the portfolio, ranked #27.

Two Sigma Investments first reported a position in BSX in Q2 2013 and has held it in 44 quarters since. 1,664 funds tracked by Wall St. Rank hold BSX as of Q1 2026.

Two Sigma Investments held 9,411,231 shares of Boston Scientific worth $591M as of Q1 2026.
Two Sigma Investments bought 6,939,887 Boston Scientific shares in Q1 2026, an estimated $555M.
Boston Scientific made up 0.48% of Two Sigma Investments's portfolio in Q1 2026, its #27 holding.
Two Sigma Investments first reported a position in Boston Scientific in Q2 2013 and has held it in 44 quarters since.
1,664 funds tracked by Wall St. Rank held Boston Scientific as of Q1 2026.

Based on Two Sigma Investments's 13F filing for Q1 2026, filed 15 May 2026.