PEAK6’s Boston Scientific BSX Stock Holding History

PEAK6’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	$4.47M	Sell	71,200 -31,700	-31%	-$2.54M	0.01%	954
2025 Q4	$9.81M	Buy	102,900 +8,100	+9%	+$794K	0.02%	656
2025 Q3	$9.26M	Buy	94,800 +11,300	+14%	+$1.17M	0.01%	726
2025 Q2	$8.97M	Sell	83,500 -20,400	-20%	-$2.06M	0.02%	675
2025 Q1	$10.5M	Buy	103,900 +57,800	+125%	+$5.82M	0.02%	579
2024 Q4	$4.12M	Buy	+46,100	New	+$4.06M	0.01%	1017

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

PEAK6's BSX Position: Q1 2026 in Review

PEAK6 increased its Boston Scientific (BSX) stake by 159% in Q1 2026, buying an estimated $1.31M and bringing the position to 26,700 shares worth $1.68M. The position accounts for ﹤0.01% of the portfolio, ranked #1462.

PEAK6 first reported a position in BSX in Q4 2025 and has held it in 2 quarters since. 1,664 funds tracked by Wall St. Rank hold BSX as of Q1 2026.

PEAK6 held 26,700 shares of Boston Scientific worth $1.68M as of Q1 2026.
PEAK6 bought 16,401 Boston Scientific shares in Q1 2026, an estimated $1.31M.
Boston Scientific made up ﹤0.01% of PEAK6's portfolio in Q1 2026, its #1462 holding.
PEAK6 first reported a position in Boston Scientific in Q4 2025 and has held it in 2 quarters since.
1,664 funds tracked by Wall St. Rank held Boston Scientific as of Q1 2026.

Based on PEAK6's 13F filing for Q1 2026, filed 14 May 2026.