Question 1

Does Two Sigma own BSX stock?

Accepted Answer

Yes. As of its Q4 2025 13F, Two Sigma holds 6,298,460 shares of BSX (Boston Scientific), worth $600.6M.

Question 2

How many shares of BSX does Two Sigma own?

Accepted Answer

As of its Q4 2025 13F, Two Sigma holds 6,298,460 shares of BSX (Boston Scientific).

Question 3

What is Two Sigma's BSX position worth?

Accepted Answer

As of its Q4 2025 13F, Two Sigma's BSX position is worth $600.6M.

Question 4

Is Two Sigma buying or selling BSX?

Accepted Answer

In Q4 2025, Two Sigma increased its BSX position by 958,700 shares (+18.0%).

Question 5

When did Two Sigma first buy BSX?

Accepted Answer

Two Sigma already held BSX in its Q4 2018 13F, the earliest on record, and has listed it in 27 quarterly 13F filings.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2025-Q4 Latest	Increased	6.3M	+17.9%	$600.6M	1.2%	$95.35	58
2025-Q3	Increased	5.3M	+3.3%	$521.3M	1.0%	$97.63	51
2025-Q2	Increased	5.2M	+22.9%	$555.3M	1.1%	$107.41	60
2025-Q1	Increased	4.2M	+456.9%	$424.3M	1.0%	$100.88	71
2024-Q4	Increased	755,260	+48.5%	$67.5M	0.2%	$89.32	49
2024-Q3	Increased	508,460	+41.6%	$42.6M	0.1%	$83.80	39

BSXShowing 6 of 28 quarters

BSX
Showing 6 of 28 quarters