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Equibles

CITADEL ADVISORS LLC

Position in WST — West Pharmaceutical Services Inc

CIK 1423053 MIAMI, FL
Back to WST Full portfolio

Position in WST

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$81,103,845
+$13,518,456 QoQ
Shares Held
323,587
+31.7% QoQ
Ownership
0.458%
of shares outstanding
% of Portfolio
0.06%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
24 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in WST Over Time

Shares Held

Position Value (USD)

Derivatives in WST

reported options exposure · as of Mar 31, 2026
CallValue
$7,694,648
CallShares
30,700
PutValue
$2,907,424
PutShares
11,600

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Medical Instruments & Supplies

Healthcare · as of Mar 31, 2026

CITADEL ADVISORS LLC holds $1,983,617,750 across 42 Medical Instruments & Supplies names. WST ranks #8 (4.1% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 ISRG
Intuitive Surgical Inc
 1,356,011 $625,107,510
2 TFX
Teleflex Inc
 1,171,096 $140,074,791
3 BDX
Becton Dickinson & Co
 829,501 $130,422,441
4 RGEN
Repligen Corp
 1,099,181 $129,505,505
5 ALGN
Align Technology Inc
 730,025 $125,148,185
6 NVST
Envista Holdings Corp
 4,584,572 $116,310,591
7 HOLX
HOLOGIC INC
 1,090,660 $82,442,989
8 WST
West Pharmaceutical Services Inc
This page 		323,587 $81,103,845

All Filings in WST

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $2,907,424 11,600
2026-03-31 $81,103,845 323,587
2026-03-31 $7,694,648 30,700
2025-12-31 $3,081,568 11,200
2025-12-31 $3,136,596 11,400
2025-12-31 $67,585,389 245,640
2025-09-30 $12,460,675 47,500
2025-09-30 $190,854,781 727,537
2025-09-30 $2,072,407 7,900
2025-06-30 $28,178,376 128,786
2025-06-30 $5,513,760 25,200
2025-06-30 $11,552,640 52,800
2025-03-31 $19,790,992 88,400
2025-03-31 $6,649,236 29,700
2025-03-31 $62,849,160 280,727
2024-12-31 $219,752,797 670,878
2024-12-31 $13,823,032 42,200
2024-12-31 $7,435,612 22,700
2024-09-30 $14,467,712 48,200
2024-09-30 $14,445,499 48,126
2024-09-30 $13,357,120 44,500
2024-06-30 $92,342,509 280,344
2024-06-30 $15,481,330 47,000
2024-06-30 $12,154,491 36,900
2024-03-31 $99,164,926 250,600
2024-03-31 $419,510,373 1,060,146
2024-03-31 $12,939,717 32,700
2023-12-31 $327,125,465 929,017
2023-12-31 $14,507,344 41,200
2023-12-31 $7,324,096 20,800
2023-09-30 $9,605,376 25,600
2023-09-30 $582,242,623 1,551,778
2023-09-30 $8,667,351 23,100
2023-06-30 $4,513,146 11,800
2023-06-30 $402,867,507 1,053,331
2023-06-30 $3,824,700 10,000
2023-03-31 $380,833,587 1,099,182
2023-03-31 $1,455,174 4,200
2023-03-31 $3,222,171 9,300
2022-12-31 $4,330,440 18,400
2022-12-31 $2,259,360 9,600
2022-12-31 $37,911,119 161,084
2022-09-30 $1,747,168 7,100
2022-09-30 $3,592,768 14,600
2022-09-30 $53,374,505 216,899
2022-06-30 $2,751,567 9,100
2022-06-30 $40,799,690 134,933
2022-06-30 $3,749,388 12,400
2022-03-31 $162,284,253 395,131
2022-03-31 $9,692,756 23,600

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