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 Q2	$29.2M	Buy	683,808 +657,108	+2,461%	+$35.7M	0.06%	258
2026 Q1	$1.68M	Buy	26,700 +16,401	+159%	+$1.31M	﹤0.01%	1462
2025 Q4	$982K	Buy	+10,299	New	+$1.01M	﹤0.01%	1778

Other funds holding BSX

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

PEAK6's BSX Position: Q2 2026 in Review

PEAK6 increased its Boston Scientific (BSX) stake by 2,461% in Q2 2026, buying an estimated $35.7M and bringing the position to 683,808 shares worth $29.2M. The position accounts for 0.06% of the portfolio, ranked #258.

PEAK6 first reported a position in BSX in Q4 2025 and has held it in 3 quarters since. 1,477 funds tracked by Wall St. Rank hold BSX as of Q2 2026.

PEAK6 held 683,808 shares of Boston Scientific worth $29.2M as of Q2 2026.
PEAK6 bought 657,108 Boston Scientific shares in Q2 2026, an estimated $35.7M.
Boston Scientific made up 0.06% of PEAK6's portfolio in Q2 2026, its #258 holding.
PEAK6 first reported a position in Boston Scientific in Q4 2025 and has held it in 3 quarters since.
1,477 funds tracked by Wall St. Rank held Boston Scientific as of Q2 2026.

Based on PEAK6's 13F filing for Q2 2026, filed 13 Aug 2026.