Mattson Financial Services’s Boston Scientific BSX Stock Holding History

Mattson Financial Services’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	$2.1M	Buy	46,991 +20,509	+77%	+$1.11M	0.44%	72
2026 Q1	$1.66M	Buy	26,482 +3,023	+13%	+$242K	0.4%	80
2025 Q4	$2.24M	Buy	23,459 +373	+2%	+$36.6K	0.52%	67
2025 Q3	$2.25M	Buy	23,086 +1,335	+6%	+$138K	0.54%	68
2025 Q2	$2.34M	Sell	21,751 -399	-2%	-$40.4K	0.63%	61
2025 Q1	$2.23M	Sell	22,150 -344	-2%	-$34.6K	0.67%	54
2024 Q4	$1.88M	Sell	22,494 -7,650	-25%	-$673K	0.6%	57
2024 Q3	$2.32M	Sell	30,144 -227	-0.7%	-$17.9K	0.83%	39
2024 Q2	$2.34M	Buy	+30,371	New	+$2.22M	0.83%	39

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

California State Teachers Retirement System (CalSTRS) West Sacramento, California $782B AUM 28.39% 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

Mattson Financial Services's BSX Position: Q2 2026 in Review

Mattson Financial Services increased its Boston Scientific (BSX) stake by 77% in Q2 2026, buying an estimated $1.11M and bringing the position to 46,991 shares worth $2.1M. The position accounts for 0.44% of the portfolio, ranked #72.

Mattson Financial Services first reported a position in BSX in Q2 2024 and has held it in 9 quarters since. The position peaked at $2.34M in Q2 2024. 1,470 funds tracked by Wall St. Rank hold BSX as of Q2 2026.

Mattson Financial Services held 46,991 shares of Boston Scientific worth $2.1M as of Q2 2026.
Mattson Financial Services bought 20,509 Boston Scientific shares in Q2 2026, an estimated $1.11M.
Boston Scientific made up 0.44% of Mattson Financial Services's portfolio in Q2 2026, its #72 holding.
Mattson Financial Services first reported a position in Boston Scientific in Q2 2024 and has held it in 9 quarters since.
Mattson Financial Services's Boston Scientific position peaked at $2.34M in Q2 2024.
1,470 funds tracked by Wall St. Rank held Boston Scientific as of Q2 2026.

Based on Mattson Financial Services's 13F filing for Q2 2026, filed 4 Aug 2026.