Dark Forest Capital Management’s Boston Scientific BSX Stock Holding History

Dark Forest Capital Management’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	$4.22M	Buy	98,856 +70,224	+245%	+$3.81M	0.27%	83
2026 Q1	$1.8M	Sell	28,632 -12,931	-31%	-$1.03M	0.16%	179
2025 Q4	$3.96M	Sell	41,563 -22,746	-35%	-$2.23M	0.18%	150
2025 Q3	$6.28M	Buy	64,309 +14,760	+30%	+$1.53M	0.24%	76
2025 Q2	$5.32M	Sell	49,549 -14,783	-23%	-$1.5M	0.21%	94
2025 Q1	$6.49M	Buy	64,332 +46,232	+255%	+$4.66M	0.29%	34
2024 Q4	$1.62M	Buy	18,100 +1,797	+11%	+$158K	0.24%	65
2024 Q3	$1.37M	Buy	16,303 +11,173	+218%	+$881K	0.17%	123
2024 Q2	$395K	Buy	5,130 +1,924	+60%	+$141K	0.07%	347
2024 Q1	$220K	Buy	+3,206	New	+$206K	0.04%	588
2023 Q3	–	Sell	-12,903	Closed	-$698K	–	1095
2023 Q2	$698K	Buy	+12,903	New	+$674K	0.06%	478
2022 Q4	–	Sell	-6,418	Closed	-$249K	–	1173
2022 Q3	$249K	Buy	6,418 +6,262	+4,014%	+$251K	0.04%	355
2022 Q2	$6K	Buy	+156	New	+$6.35K	﹤0.01%	601
2022 Q1	–	Sell	-273	Closed	-$12K	–	1308
2021 Q4	$12K	Sell	273 -1,099	-80%	-$46.2K	﹤0.01%	853
2021 Q3	$60K	Sell	1,372 -9,104	-87%	-$403K	0.02%	522
2021 Q2	$448K	Buy	+10,476	New	+$441K	0.19%	44

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 $3.38T AUM 44.17% 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

Dark Forest Capital Management's BSX Position: Q2 2026 in Review

Dark Forest Capital Management increased its Boston Scientific (BSX) stake by 245% in Q2 2026, buying an estimated $3.81M and bringing the position to 98,856 shares worth $4.22M. The position accounts for 0.27% of the portfolio, ranked #83.

Dark Forest Capital Management first reported a position in BSX in Q2 2021 and has held it in 16 quarters since. The position peaked at $6.49M in Q1 2025. 1,487 funds tracked by Wall St. Rank hold BSX as of Q2 2026.

Dark Forest Capital Management held 98,856 shares of Boston Scientific worth $4.22M as of Q2 2026.
Dark Forest Capital Management bought 70,224 Boston Scientific shares in Q2 2026, an estimated $3.81M.
Boston Scientific made up 0.27% of Dark Forest Capital Management's portfolio in Q2 2026, its #83 holding.
Dark Forest Capital Management first reported a position in Boston Scientific in Q2 2021 and has held it in 16 quarters since.
Dark Forest Capital Management's Boston Scientific position peaked at $6.49M in Q1 2025.
1,487 funds tracked by Wall St. Rank held Boston Scientific as of Q2 2026.

Based on Dark Forest Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.