Boston Scientific
BSX
830 hedge funds and large institutions have $50.1B invested in Boston Scientific in 2021 Q1 according to their latest regulatory filings, with 86 funds opening new positions, 295 increasing their positions, 305 reducing their positions, and 112 closing their positions.
9% more capital invested
Capital invested by funds: $46.2B → $50.1B (+$3.93B)
2.56% more ownership
Funds ownership: 88.87% → 91.43% (+2.6%)
3% less repeat investments, than reductions
Existing positions increased: 295 | Existing positions reduced: 305
4% less funds holding
Funds holding: 863 → 830 (-33)
23% less first-time investments, than exits
New positions opened: 86 | Existing positions closed: 112
32% less call options, than puts
Call options by funds: $208M | Put options by funds: $307M
33% less funds holding in top 10
Funds holding in top 10: 15 → 10 (-5)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Massachusetts Financial Services
Boston,
Massachusetts
|
+$1.27B |
| 2 |
Fidelity Investments
Boston,
Massachusetts
|
+$818M |
| 3 |
Wellington Management Group
Boston,
Massachusetts
|
+$505M |
| 4 |
Parnassus Investments
San Francisco,
California
|
+$335M |
| 5 |
DZ Bank
Frankfurt Am Main,
Germany
|
+$255M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Viking Global Investors
Stamford,
Connecticut
|
-$458M |
| 2 |
D.E. Shaw & Co
New York
|
-$311M |
| 3 |
T. Rowe Price Associates
Baltimore,
Maryland
|
-$293M |
| 4 |
Two Sigma Investments
New York
|
-$217M |
| 5 |
Citadel Advisors
Miami,
Florida
|
-$163M |
BSX Hedge Fund Activity: Q1 2021 in Review
830 of the 5,695 institutional investors tracked by Wall St. Rank reported a position in Boston Scientific (BSX) for Q1 2021, worth a combined $50.1B — up 8.5% from $46.2B a quarter earlier.
Sellers outnumbered buyers: 112 funds closed out of BSX and 86 opened new positions — a net loss of 26 holders — while 305 trimmed existing stakes and 295 added.
The largest buyer was Massachusetts Financial Services, adding an estimated $1.27B. The largest seller was Viking Global Investors, cutting an estimated $458M.
- 830 institutional investors held Boston Scientific (BSX) as of Q1 2021, down from 863 in Q4 2020.
- Funds reported $50.1B of Boston Scientific stock for Q1 2021, up 8.5% quarter-over-quarter.
- 86 funds opened new Boston Scientific positions in Q1 2021 and 112 closed out, a net change of -26 holders.
- The largest Boston Scientific buyer in Q1 2021 was Massachusetts Financial Services, an estimated $1.27B added.
- The largest Boston Scientific seller in Q1 2021 was Viking Global Investors, an estimated $458M sold.
Based on aggregated 13F filings for Q1 2021.