Balyasny Asset Management’s Boston Scientific BSX Stock Holding History

Balyasny 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 Q1	–	Sell	-84,200	Closed	-$8.03M	–	2927
2025 Q4	$8.03M	Buy	84,200 +44,000	+109%	+$4.31M	0.01%	1140
2025 Q3	$3.92M	Buy	40,200 +1,100	+3%	+$114K	0.01%	1485
2025 Q2	$4.2M	Sell	39,100 -15,500	-28%	-$1.57M	0.01%	1373
2025 Q1	$5.51M	Sell	54,600 -40,000	-42%	-$4.03M	0.01%	1202
2024 Q4	$8.45M	Buy	94,600 +20,300	+27%	+$1.79M	0.01%	1039
2024 Q3	$6.23M	Buy	74,300 +2,300	+3%	+$181K	0.01%	1171
2024 Q2	$5.54M	Sell	72,000 -42,000	-37%	-$3.07M	0.01%	1126
2024 Q1	$7.81M	Hold	114,000	–	–	0.01%	1040
2023 Q4	$6.59M	Sell	114,000 -146,000	-56%	-$7.79M	0.01%	1022
2023 Q3	$13.7M	Buy	+260,000	New	+$13.6M	0.03%	718
2021 Q3	–	Sell	-19,000	Closed	-$812K	–	1962
2021 Q2	$812K	Buy	+19,000	New	+$799K	﹤0.01%	1377

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

Balyasny Asset Management's BSX Position: Q1 2026 in Review

Balyasny Asset Management reduced its Boston Scientific (BSX) stake by 45% in Q1 2026, selling an estimated $90M and leaving 1,356,133 shares worth $85.1M. The position accounts for 0.11% of the portfolio, ranked #194.

Balyasny Asset Management first reported a position in BSX in Q2 2013 and has held it in 36 quarters since. The position peaked at $290M in Q3 2024. 1,664 funds tracked by Wall St. Rank hold BSX as of Q1 2026.

Balyasny Asset Management held 1,356,133 shares of Boston Scientific worth $85.1M as of Q1 2026.
Balyasny Asset Management sold 1,125,616 Boston Scientific shares in Q1 2026, an estimated $90M.
Boston Scientific made up 0.11% of Balyasny Asset Management's portfolio in Q1 2026, its #194 holding.
Balyasny Asset Management first reported a position in Boston Scientific in Q2 2013 and has held it in 36 quarters since.
Balyasny Asset Management's Boston Scientific position peaked at $290M in Q3 2024.
1,664 funds tracked by Wall St. Rank held Boston Scientific as of Q1 2026.

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