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West Pharmaceutical
756 hedge funds and large institutions have $18B invested in West Pharmaceutical in 2025 Q3 according to their latest regulatory filings, with 118 funds opening new positions, 270 increasing their positions, 248 reducing their positions, and 83 closing their positions.
New
Increased
Maintained
Reduced
Closed
200% more funds holding in top 10
Funds holding in top 10: 1 → 3 (+2)
195% more call options, than puts
Call options by funds: $74.8M | Put options by funds: $25.4M
42% more first-time investments, than exits
New positions opened: 118 | Existing positions closed: 83
18% more capital invested
Capital invested by funds: $15.3B → $18B (+$2.69B)
4% more funds holding
Funds holding: 730 → 756 (+26)
9% more repeat investments, than reductions
Existing positions increased: 270 | Existing positions reduced: 248
1.85% less ownership
Funds ownership: 97.49% → 95.64% (-1.9%)
Holders
756
Holders Change
+26
Holders Change %
+3.56%
% of All Funds
9.92%
Holding in Top 10
3
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+200%
% of All Funds
0.04%
New
118
Increased
270
Reduced
248
Closed
83
Calls
$74.8M
Puts
$25.4M
Net Calls
+$49.4M
Net Calls Change
+$45K
Top Buyers
| 1 |
Citadel Advisors
Miami,
Florida
|
+$146M |
| 2 |
Artisan Partners
Milwaukee,
Wisconsin
|
+$122M |
| 3 |
SCM
Steadfast Capital Management
New York
|
+$115M |
| 4 |
AQR Capital Management
Greenwich,
Connecticut
|
+$107M |
| 5 |
Vanguard Group
Malvern,
Pennsylvania
|
+$94.3M |
Top Sellers
| 1 |
Brown Advisory
Baltimore,
Maryland
|
-$127M |
| 2 |
Two Sigma Investments
New York
|
-$117M |
| 3 |
LIP
Liontrust Investment Partners
London,
United Kingdom
|
-$92.2M |
| 4 |
William Blair Investment Management
Chicago,
Illinois
|
-$79.1M |
| 5 |
Bank of New York Mellon
New York
|
-$73.3M |