Boston Scientific
1,521 hedge funds and large institutions have $120B invested in Boston Scientific in 2024 Q4 according to their latest regulatory filings, with 221 funds opening new positions, 618 increasing their positions, 492 reducing their positions, and 83 closing their positions.
166% more first-time investments, than exits
New positions opened: 221 | Existing positions closed: 83
26% more repeat investments, than reductions
Existing positions increased: 618 | Existing positions reduced: 492
9% more funds holding
Funds holding: 1,401 → 1,521 (+120)
8% more funds holding in top 10
Funds holding in top 10: 36 → 39 (+3)
8% more capital invested
Capital invested by funds: $111B → $120B (+$8.78B)
1.11% more ownership
Funds ownership: 89.9% → 91.01% (+1.1%)
13% less call options, than puts
Call options by funds: $797M | Put options by funds: $912M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
+$909M |
| 2 |
Capital World Investors
Los Angeles,
California
|
+$547M |
| 3 |
Wellington Management Group
Boston,
Massachusetts
|
+$294M |
| 4 |
AI
Axiom Investors
Greenwich,
Connecticut
|
+$223M |
| 5 |
Northern Trust
Chicago,
Illinois
|
+$196M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Massachusetts Financial Services
Boston,
Massachusetts
|
-$529M |
| 2 |
Citadel Advisors
Miami,
Florida
|
-$428M |
| 3 |
Assenagon Asset Management
Senningerberg,
Luxembourg
|
-$260M |
| 4 |
Fidelity Investments
Boston,
Massachusetts
|
-$242M |
| 5 |
Bank of Montreal
Toronto,
Ontario, Canada
|
-$222M |
BSX Hedge Fund Activity: Q4 2024 in Review
1,521 of the 7,607 institutional investors tracked by Wall St. Rank reported a position in Boston Scientific (BSX) for Q4 2024, worth a combined $120B — up 7.9% from $111B a quarter earlier.
Buyers outnumbered sellers: 221 funds opened new BSX positions and 83 closed out — a net gain of 138 holders — while 618 added to existing stakes and 492 trimmed.
The largest buyer was BlackRock, adding an estimated $909M. The largest seller was Massachusetts Financial Services, cutting an estimated $529M.
- 1,521 institutional investors held Boston Scientific (BSX) as of Q4 2024, up from 1,401 in Q3 2024.
- Funds reported $120B of Boston Scientific stock for Q4 2024, up 7.9% quarter-over-quarter.
- 221 funds opened new Boston Scientific positions in Q4 2024 and 83 closed out, a net change of +138 holders.
- The largest Boston Scientific buyer in Q4 2024 was BlackRock, an estimated $909M added.
- The largest Boston Scientific seller in Q4 2024 was Massachusetts Financial Services, an estimated $529M sold.
Based on aggregated 13F filings for Q4 2024.