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 Q3	$1.31M	Buy	30,048 +14,171	+89%	+$656K	0.03%	176
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

Assenagon Asset Management Senningerberg, Luxembourg $103B AUM 40.17% 1-Year Est. Return

DekaBank Deutsche Girozentrale Frankfurt, Germany $87.8B AUM 20.94% 1-Year Est. Return

Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $174B AUM 33.96% 1-Year Est. Return

Alecta Tjanstepension Omsesidigt Stockholm, Sweden $24.1B AUM 30.72% 1-Year Est. Return

Temasek Holdings Singapore $36.7B AUM 6.83% 1-Year Est. Return

Parnassus Investments San Francisco, California $33.8B AUM 31.08% 1-Year Est. Return

Principal Financial Group Des Moines, Iowa $195B AUM 21.17% 1-Year Est. Return

KBC Group Brussels, Belgium $47.9B AUM 37.61% 1-Year Est. Return

New York State Teachers Retirement System (NYSTRS) Albany, New York $52.9B AUM 36.03% 1-Year Est. Return

AMF Tjänstepension Stockholm, Sweden $17.2B AUM 28.3% 1-Year Est. Return

Chicago Capital's BSX Position: Q3 2026 in Review

Chicago Capital increased its Boston Scientific (BSX) stake by 89% in Q3 2026, buying an estimated $656K and bringing the position to 30,048 shares worth $1.31M. The position accounts for 0.03% of the portfolio, ranked #176.

Chicago Capital first reported a position in BSX in Q4 2023 and has held it in 12 quarters since. The position peaked at $62.9M in Q2 2025. 558 funds tracked by Wall St. Rank hold BSX as of Q3 2026.

Chicago Capital held 30,048 shares of Boston Scientific worth $1.31M as of Q3 2026.
Chicago Capital bought 14,171 Boston Scientific shares in Q3 2026, an estimated $656K.
Boston Scientific made up 0.03% of Chicago Capital's portfolio in Q3 2026, its #176 holding.
Chicago Capital first reported a position in Boston Scientific in Q4 2023 and has held it in 12 quarters since.
Chicago Capital's Boston Scientific position peaked at $62.9M in Q2 2025.
558 funds tracked by Wall St. Rank held Boston Scientific as of Q3 2026.

Based on Chicago Capital's 13F filing for Q3 2026, filed 13 Oct 2026.