Deerfield Management’s Boston Scientific BSX Stock Holding History

Deerfield 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 Q1	–	Sell	-24,941	Closed	-$2.38M	–	98
2025 Q4	$2.38M	Sell	24,941 -6,371	-20%	-$625K	0.03%	88
2025 Q3	$3.06M	Buy	+31,312	New	+$3.24M	0.05%	86
2021 Q2	–	Sell	-2,857,000	Closed	-$110M	–	147
2021 Q1	$110M	Buy	+2,857,000	New	+$108M	2.32%	8
2020 Q4	–	Hold	0	–	–	–	86
2015 Q3	–	Sell	-1,405,348	Closed	-$24.9M	–	137
2015 Q2	$24.9M	Buy	+1,405,348	New	+$25.1M	0.83%	44

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

Deerfield Management's BSX Position: Q1 2026 in Review

Deerfield Management sold out of Boston Scientific (BSX) in Q1 2026, closing a stake of 24,941 shares — an estimated $2.38M sold.

Deerfield Management first reported a position in BSX in Q2 2015 and held it in 4 quarters. The position peaked at $110M in Q1 2021. 1,664 funds tracked by Wall St. Rank hold BSX as of Q1 2026.

Deerfield Management reported no remaining Boston Scientific position as of Q1 2026 after selling out during the quarter.
Deerfield Management sold 24,941 Boston Scientific shares in Q1 2026, an estimated $2.38M.
Deerfield Management first reported a position in Boston Scientific in Q2 2015 and held it in 4 quarters.
Deerfield Management's Boston Scientific position peaked at $110M in Q1 2021.
1,664 funds tracked by Wall St. Rank held Boston Scientific as of Q1 2026.

Based on Deerfield Management's 13F filing for Q1 2026, filed 15 May 2026.