John Overdeck’s Boston Scientific BSX Stock Holding History

John Overdeck’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	$1.32M	Buy	31,000 +26,000	+520%	+$1.41M	﹤0.01%	3391
2026 Q1	$314K	Buy	+5,000	New	+$400K	﹤0.01%	4047
2025 Q4	–	Sell	-9,000	Closed	-$879K	–	4089
2025 Q3	$879K	Buy	+9,000	New	+$932K	﹤0.01%	2668
2020 Q4	–	Sell	-6,900	Closed	-$264K	–	3351
2020 Q3	$264K	Buy	+6,900	New	+$266K	﹤0.01%	2657
2020 Q1	–	Sell	-19,400	Closed	-$877K	–	3138
2019 Q4	$877K	Sell	19,400 -3,300	-15%	-$138K	﹤0.01%	2306
2019 Q3	$924K	Buy	22,700 +6,200	+38%	+$263K	﹤0.01%	2057
2019 Q2	$709K	Buy	+16,500	New	+$635K	﹤0.01%	2226
2018 Q2	–	Sell	-17,000	Closed	-$464K	–	3326
2018 Q1	$464K	Buy	+17,000	New	+$462K	﹤0.01%	2508
2017 Q1	–	Sell	-79,600	Closed	-$1.72M	–	2916
2016 Q4	$1.72M	Buy	79,600 +67,700	+569%	+$1.48M	0.01%	1605
2016 Q3	$283K	Buy	+11,900	New	+$284K	﹤0.01%	2784
2016 Q1	–	Sell	-84,000	Closed	-$1.55M	–	2804
2015 Q4	$1.55M	Buy	+84,000	New	+$1.51M	0.01%	1221

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

John Overdeck's BSX Position: Q2 2026 in Review

John Overdeck increased its Boston Scientific (BSX) stake by 106% in Q2 2026, buying an estimated $540M and bringing the position to 19,359,023 shares worth $826M. The position accounts for 0.6% of the portfolio, ranked #13.

John Overdeck first reported a position in BSX in Q2 2013 and has held it in 45 quarters since. 1,468 funds tracked by Wall St. Rank hold BSX as of Q2 2026.

John Overdeck held 19,359,023 shares of Boston Scientific worth $826M as of Q2 2026.
John Overdeck bought 9,947,792 Boston Scientific shares in Q2 2026, an estimated $540M.
Boston Scientific made up 0.6% of John Overdeck's portfolio in Q2 2026, its #13 holding.
John Overdeck first reported a position in Boston Scientific in Q2 2013 and has held it in 45 quarters since.
1,468 funds tracked by Wall St. Rank held Boston Scientific as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.