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West Pharmaceutical

712 hedge funds and large institutions have $15.6B invested in West Pharmaceutical in 2025 Q1 according to their latest regulatory filings, with 91 funds opening new positions, 273 increasing their positions, 261 reducing their positions, and 114 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more ownership

Funds ownership:

less funds holding

Funds holding:

20% less first-time investments, than exits

New positions opened: 91 | Existing positions closed: 114

32% less capital invested

Capital invested by funds: $22.9B → $15.6B (-$7.25B)

70% less funds holding in top 10

Funds holding in top 10: 103 (-7)

Holders
712
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
3
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$98M
Puts
$63M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
301
$1.29M
302
$1.29M
303
$1.27M
304
$1.25M
305
$1.25M
306
$1.21M
307
$1.21M
308
$1.19M
309
$1.18M
310
$1.16M
311
$1.15M
312
$1.15M
313
$1.14M
314
$1.13M
315
$1.13M
316
$1.13M
317
$1.12M
318
$1.11M
319
$1.1M
320
$1.1M
321
$1.08M
322
$1.07M
323
$1.06M
324
$1.02M
325
$1.02M