Holocene Advisors’s Boston Scientific BSX Stock Holding History

Holocene Advisors’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	$93.4M	Buy	+1,488,200	New	+$119M	0.23%	116
2025 Q3	–	Sell	-1,476,000	Closed	-$159M	–	758
2025 Q2	$159M	Buy	+1,476,000	New	+$149M	0.39%	73
2021 Q3	–	Sell	-857,500	Closed	-$36.7M	–	817
2021 Q2	$36.7M	Buy	+857,500	New	+$36.1M	0.21%	148

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

Holocene Advisors's BSX Position: Q1 2026 in Review

Holocene Advisors reduced its Boston Scientific (BSX) stake by 23% in Q1 2026, selling an estimated $83.4M and leaving 3,428,736 shares worth $215M. The position accounts for 0.52% of the portfolio, ranked #50.

Holocene Advisors first reported a position in BSX in Q4 2017 and has held it in 26 quarters since. The position peaked at $456M in Q4 2023. 1,664 funds tracked by Wall St. Rank hold BSX as of Q1 2026.

Holocene Advisors held 3,428,736 shares of Boston Scientific worth $215M as of Q1 2026.
Holocene Advisors sold 1,042,353 Boston Scientific shares in Q1 2026, an estimated $83.4M.
Boston Scientific made up 0.52% of Holocene Advisors's portfolio in Q1 2026, its #50 holding.
Holocene Advisors first reported a position in Boston Scientific in Q4 2017 and has held it in 26 quarters since.
Holocene Advisors's Boston Scientific position peaked at $456M in Q4 2023.
1,664 funds tracked by Wall St. Rank held Boston Scientific as of Q1 2026.

Based on Holocene Advisors's 13F filing for Q1 2026, filed 15 May 2026.