Chicago Capital’s Boston Scientific BSX Stock Holding History

Chicago Capital’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	$678K	Sell	15,877 -252,993	-94%	-$13.7M	0.02%	246
2026 Q1	$16.9M	Sell	268,870 -321,989	-54%	-$25.8M	0.45%	45
2025 Q4	$56.3M	Buy	590,859 +7,135	+1%	+$700K	1.39%	24
2025 Q3	$57M	Sell	583,724 -1,435	-0.2%	-$149K	1.4%	26
2025 Q2	$62.9M	Buy	585,159 +87,168	+18%	+$8.82M	1.55%	25
2025 Q1	$50.2M	Buy	497,991 +294,515	+145%	+$29.7M	1.42%	30
2024 Q4	$18.2M	Buy	203,476 +189,824	+1,390%	+$16.7M	0.48%	47
2024 Q3	$1.14M	Sell	13,652 -3,381	-20%	-$267K	0.03%	152
2024 Q2	$1.31M	Sell	17,033 -25,618	-60%	-$1.88M	0.04%	145
2024 Q1	$2.92M	Sell	42,651 -1,990	-4%	-$128K	0.09%	105
2023 Q4	$2.58M	Buy	+44,641	New	+$2.38M	0.09%	104

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

Chicago Capital's BSX Position: Q2 2026 in Review

Chicago Capital reduced its Boston Scientific (BSX) stake by 94% in Q2 2026, selling an estimated $13.7M and leaving 15,877 shares worth $678K. The position accounts for 0.02% of the portfolio, ranked #246.

Chicago Capital first reported a position in BSX in Q4 2023 and has held it in 11 quarters since. The position peaked at $62.9M in Q2 2025. 1,479 funds tracked by Wall St. Rank hold BSX as of Q2 2026.

Chicago Capital held 15,877 shares of Boston Scientific worth $678K as of Q2 2026.
Chicago Capital sold 252,993 Boston Scientific shares in Q2 2026, an estimated $13.7M.
Boston Scientific made up 0.02% of Chicago Capital's portfolio in Q2 2026, its #246 holding.
Chicago Capital first reported a position in Boston Scientific in Q4 2023 and has held it in 11 quarters since.
Chicago Capital's Boston Scientific position peaked at $62.9M in Q2 2025.
1,479 funds tracked by Wall St. Rank held Boston Scientific as of Q2 2026.

Based on Chicago Capital's 13F filing for Q2 2026, filed 28 Jul 2026.