West Pharmaceutical Services: which funds bought and sold
Institutions that bought and sold West Pharmaceutical Services shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 446 institutions that filed 13F reports for both quarters added to or opened positions in West Pharmaceutical Services, and 318 cut or closed them. Together they sold a net 1.4M shares, −2.0% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 501K shares (−2.7%); index fund managers were net sellers of 367K shares (−1.6%). 143 opened a new position and 61 sold out entirely.
Bought, Q2 2026 446 institutions, 143 of them new holders Sold, Q2 2026 318 institutions, 61 of them sold out
Net change, all compared −1.4M shares (−2.0%)
Net change, active managers −501K shares (−2.7%), 38 bought, 38 sold
Buyers versus sellers
446 bought 118 318 sold
Active managers and hedge funds 38 bought · 38 sold · −501K
Index fund managers 4 bought · 8 sold · −367K
Other institutions 404 bought · 272 sold · −521K
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| FMR LLC Active manager | +2.3M +186.0% | 3.6M | $1.3B |
| William Blair Investment Management, LLC Active manager | +378K +950.5% | 417K | $150M |
| Lord, Abbett & Co. LLC | +181K New position | 181K | $65.1M |
| Quantinno Capital Management LP | +147K +90.8% | 308K | $111M |
| Los Angeles Capital Management LLC Active manager | +126K +206.9% | 186K | $66.9M |
| Morgan Stanley | +124K +8.5% | 1.6M | $568M |
| Point72 Asset Management, L.P. Hedge fund | +124K +77.8% | 283K | $102M |
| National Pension Service | +122K +3080.6% | 126K | $45.3M |
| Jpmorgan Chase & Co | +121K +11.6% | 1.2M | $413M |
| State Farm Mutual Automobile Insurance Co | +107K +27.6% | 495K | $178M |
| BNP Paribas Asset Management Holding S.A. | +105K +233.6% | 150K | $53.8M |
| USS Investment Management Ltd | +104K +542.2% | 123K | $44.3M |
| UBS Group AG | +99K +35.9% | 374K | $134M |
| Candriam S.C.A. | +87K +956.0% | 96K | $34.6M |
| Goldman Sachs Group Inc | +87K +12.0% | 815K | $293M |
| Stonehage Fleming Financial Services Holdings Ltd | +85K +33.5% | 340K | $122M |
| Marshall Wace, LLP Hedge fund | +82K +5213.3% | 84K | $30M |
| Boston Trust Walden Corp | +81K New position | 81K | $29.2M |
| First Trust Advisors LP | +81K +289.6% | 109K | $39M |
| Russell Investments Group, Ltd. | +77K +39.2% | 272K | $97.5M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| FMR LLC Active manager | +2.3M +186.0% | 3.6M | $1.3B |
| William Blair Investment Management, LLC Active manager | +378K +950.5% | 417K | $150M |
| Los Angeles Capital Management LLC Active manager | +126K +206.9% | 186K | $66.9M |
| Point72 Asset Management, L.P. Hedge fund | +124K +77.8% | 283K | $102M |
| Marshall Wace, LLP Hedge fund | +82K +5213.3% | 84K | $30M |
| Holocene Advisors, LP Hedge fund | +72K +35.3% | 275K | $98.9M |
| Clough Capital Partners L P Hedge fund | +66K New position | 66K | $23.8M |
| Liontrust Investment Partners LLP Active manager | +65K +19.4% | 402K | $144M |
| Balyasny Asset Management L.P. Hedge fund | +45K +3982.6% | 46K | $16.4M |
| Alyeska Investment Group, L.P. Hedge fund | +31K New position | 31K | $11.1M |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| APG Asset Management N.V. | −707K −55.8% | 561K | $176M |
| T. Rowe Price Investment Management, Inc. Active manager | −535K −22.9% | 1.8M | $648M |
| Bank Of New York Mellon Corp | −422K −17.1% | 2.0M | $734M |
| Viking Global Investors LP Hedge fund | −417K Sold out | 0 | — |
| American Century Companies Inc Active manager | −300K −75.1% | 100K | $35.7M |
| Longview Partners (Guernsey) Ltd | −282K −21.4% | 1.0M | $371M |
| Brown Advisory Inc Active manager | −266K −19.8% | 1.1M | $386M |
| Worldquant Millennium Advisors LLC Hedge fund | −260K −96.9% | 8,421 | $3M |
| Amundi | −259K −40.2% | 385K | $138M |
| Artisan Partners Limited Partnership Active manager | −246K −9.3% | 2.4M | $866M |
| Generation Investment Management LLP Active manager | −216K −9.6% | 2.0M | $728M |
| AQR Capital Management LLC Hedge fund | −209K −78.4% | 58K | $20.3M |
| Two Sigma Investments, LP Hedge fund | −207K −91.9% | 18K | $6.5M |
| Champlain Investment Partners, LLC Active manager | −206K Sold out | 0 | — |
| Jacobs Levy Equity Management, Inc Active manager | −198K −28.0% | 508K | $182M |
| Blackrock, Inc. Index funds | −185K −2.7% | 6.7M | $2.4B |
| Renaissance Technologies LLC Hedge fund | −179K −85.3% | 31K | $11.1M |
| Neuberger Berman Group LLC Active manager | −141K −77.8% | 40K | $14.5M |
| Df Dent & Co Inc | −116K −96.2% | 4,552 | $1.6M |
| Canada Pension Plan Investment Board | −112K −83.0% | 23K | $8.3M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| T. Rowe Price Investment Management, Inc. Active manager | −535K −22.9% | 1.8M | $648M |
| Viking Global Investors LP Hedge fund | −417K Sold out | 0 | — |
| American Century Companies Inc Active manager | −300K −75.1% | 100K | $35.7M |
| Brown Advisory Inc Active manager | −266K −19.8% | 1.1M | $386M |
| Worldquant Millennium Advisors LLC Hedge fund | −260K −96.9% | 8,421 | $3M |
| Artisan Partners Limited Partnership Active manager | −246K −9.3% | 2.4M | $866M |
| Generation Investment Management LLP Active manager | −216K −9.6% | 2.0M | $728M |
| AQR Capital Management LLC Hedge fund | −209K −78.4% | 58K | $20.3M |
| Two Sigma Investments, LP Hedge fund | −207K −91.9% | 18K | $6.5M |
| Champlain Investment Partners, LLC Active manager | −206K Sold out | 0 | — |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Lord, Abbett & Co. LLC | 181K | $65.1M |
| Boston Trust Walden Corp | 81K | $29.2M |
| Orbimed Advisors LLC | 71K | $25.3M |
| Clough Capital Partners L PHedge fund | 66K | $23.8M |
| Ossiam | 53K | $18.9M |
| Janney Montgomery Scott LLC | 50K | $18M |
| Capitolis Liquid Global Markets LLC | 36K | $12.8M |
| Dakota Wealth Management | 33K | $11.7M |
| Alyeska Investment Group, L.P.Hedge fund | 31K | $11.1M |
| Madison Asset Management, LLC | 28K | $9.9M |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Viking Global Investors LPHedge fund | 417K | $105M |
| Champlain Investment Partners, LLCActive manager | 206K | $51.6M |
| Vestal Point Capital, LPHedge fund | 75K | $18.8M |
| Aware Super Pty Ltd As Trustee Of Aware Super | 62K | $15.4M |
| Taproot Management LP | 44K | $10.9M |
| Capital Fund Management S.A.Hedge fund | 32K | $8.1M |
| Qube Research & Technologies LtdHedge fund | 22K | $5.6M |
| Natixis | 18K | $4.4M |
| Commonwealth Of Pennsylvania Public School Empls Retrmt Sys | 17K | $4.2M |
| Quantitative Investment Management, LLC | 15K | $3.6M |
Who holds the shares
- Institutions reporting
- 830
- Ten largest holders
- 45.9% of 13F-reported shares
- Index fund managers
- 32.7% of 13F-reported shares
- Active managers and hedge funds
- 25.9% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 38 | 38 | 13 | 7 | −501K | −2.7% |
| Index fund managers | 4 | 8 | 0 | 0 | −367K | −1.6% |
| Other institutions | 404 | 272 | 130 | 54 | −521K | −1.8% |
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