WhaleCreepWhat the best hedge funds own, from their SEC 13F filings
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Which hedge funds own BSX? BOSTON SCIENTIFIC CORP, Q2 2026 13F holders

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21 of the hedge funds tracked by WhaleCreep disclosed a position in BSX (BOSTON SCIENTIFIC CORP) in their Q2 2026 13F filings, worth $2.7bn in total. The largest holder by portfolio weight is Farallon Capital Management at 2.6% of its book. 3 managers opened a new position this quarter: Senator Investment Group, Moore Capital Management, Glenview Capital Management. 3 exited: Davidson Kempner Capital Management, Lone Pine Capital, Sands Capital Management.

21tracked managers holding
3opened this quarter
3exited this quarter

Which hedge funds hold BSX? Current holders by portfolio weight

ManagerAs ofWeight of bookValueSharesΔ sharesAction
Farallon Capital ManagementQ2 2026 2.6%$449.0m10,521,184 41% added
Maverick CapitalQ2 2026 2.3%$253.4m5,937,553 42% added
D. E. Shaw & CoQ2 2026 0.7%$1.1bn25,457,409 5% added
Avidity PartnersQ2 2026 0.5%$3.4m80,000 33% added
Senator Investment GroupQ2 2026 0.5%$12.8m300,000 new
Tudor InvestmentQ2 2026 0.3%$63.1m1,477,637 134% added
First ManhattanQ2 2026 0.2%$72.4m1,697,334 -65% reduced
Moore Capital ManagementQ2 2026 0.2%$8.1m189,256 new
Millennium ManagementQ2 2026 0.1%$210.7m5,437,567 25% added
Renaissance Technologies LLCQ2 2026 0.1%$102.9m2,412,005 -23% reduced
Suvretta Capital ManagementQ2 2026 0.1%$6.0m140,083 13% added
Citadel AdvisorsQ2 2026 0.1%$212.9m4,987,748 18% added
Glenview Capital ManagementQ2 2026 0.1%$4.8m113,096 new
Marshall WaceQ2 2026 0.1%$103.0m2,414,223 -33% reduced
Holocene AdvisorsQ2 2026 0.1%$34.4m806,732 -76% reduced
Bridgewater AssociatesQ2 2026 0.1%$18.9m442,036 474% added
Woodline PartnersQ2 2026 0.0%$13.8m324,406 12% added
Brevan Howard Capital ManagementQ2 2026 0.0%$2.9m68,883 -60% reduced
Point72 Asset Management LPQ2 2026 0.0%$15.6m365,241 -90% reduced
Ancora AdvisorsQ2 2026 0.0%$153.0k3,585 -55% reduced
Polen Capital ManagementQ2 2026 0.0%$202.7k4,750 -99% reduced

Exited since the previous quarter

ManagerPrior weightPrior value
Davidson Kempner Capital Management0.2%$4.0m
Lone Pine Capital0.2%$6.6m
Sands Capital Management7.5%$46.2m

Held in a manager's last filing on record

These managers have not filed for the latest quarter; their last disclosure is dated.

ManagerLast filingWeight
Boston OmahaQ4 20240.0%
Caxton AssociatesQ4 20242.0%

How has hedge fund ownership of BSX changed?

QuarterManagers holdingCombined value
Q2 202621$2.7bn
Q1 202621$4.1bn
Q4 202517$3.5bn
Q3 202514$2.5bn
Q2 202514$2.1bn
Q1 202515$1.4bn
Q4 202416$1.7bn
Q3 202418$1.8bn
Q2 202415$1.6bn
Q1 202416$1.6bn
Q4 202316$1.9bn
Q3 202314$1.7bn
Q2 202314$1.3bn
Q1 202315$1.1bn
Q4 202211$1.4bn
Q3 202213$1.7bn

Counts every tracked manager that disclosed BSX in that quarter's filing, including managers that have since stopped filing.