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WST in the 13F filings

West Pharmaceutical SVSC Inc · CUSIP 955306105

Sector · Medical devices and instrumentsTheme · Healthcare: biopharma and medtech· L3VLUP-definedTheme · Surgical, medical and electromedical devices
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023Q3 2023
Quarter end
30 Sep 2023
the date the book describes
Filed
5 Nov 2026
latest of these filings; the earliest 8 Nov 2023
Managers listing it
20
at least, of 95 tracked, among listed positions
Comparable managers
93
filed both Q2 2023 and Q3 2023; 14 listed it in both
Shares listed
11,489,988
combined, among listed positions
Reported value
$4.3bn
combined, at the quarter end

Managers listing WST in Q3 2023

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q2 2023, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

20 of 20 holders

ActionFiling
T. Rowe Price Associates Inc2,507,136$941m0.14%Trimmed-330,80814 Nov 2023 (the filing on sec.gov)
Artisan Partners LP1,591,271$597m1.01%Added+578,7969 Nov 2023 (the filing on sec.gov)
Citadel Advisors LLC1,551,778$582m0.12%Added+498,44714 Nov 2023 (the filing on sec.gov)
Durable Capital Partners LP1,202,069$451m4.12%Trimmed-76,50614 Nov 2023 (the filing on sec.gov)
Fidelity (FMR LLC)1,096,878$412munder 0.1%Trimmed-72,6835 Nov 2026 (the filing on sec.gov)
Invesco Ltd780,765$293m0.08%Trimmed-206,81013 Nov 2023 (the filing on sec.gov)
AllianceBernstein LP648,163$243m0.10%Trimmed-153,56114 Nov 2023 (the filing on sec.gov)
Neuberger Berman Group LLC602,992$226m0.21%Trimmed-118,85814 Nov 2023 (the filing on sec.gov)
MFS Investment Management573,043$215m0.08%Newnew8 Nov 2023 (the filing on sec.gov)
Man Group PLC243,925$92m0.28%Trimmed-7,54014 Nov 2023 (the filing on sec.gov)
Balyasny Asset Management LLC207,004$78m0.16%Newnew14 Nov 2023 (the filing on sec.gov)
Point72 Asset Management LP183,591$69m0.20%Newnew14 Nov 2023 (the filing on sec.gov)
Marshall Wace LLP153,761$58m0.12%Addedn.a.14 Nov 2023 (the filing on sec.gov)
Tudor Investment Corp54,805$21m0.21%Added+7,32815 Nov 2023 (the filing on sec.gov)
AQR Capital Management LLC53,060$20munder 0.1%Added+2,00214 Nov 2023 (the filing on sec.gov)
Holocene Advisors LP17,757$6.7munder 0.1%Newnew14 Nov 2023 (the filing on sec.gov)
Acadian Asset Management LLC14,243$5.3munder 0.1%Addedn.a.13 Nov 2023 (the filing on sec.gov)
Element Capital Management LLC3,445$1.3m0.11%Trimmed-4,79914 Nov 2023 (the filing on sec.gov)
PDT Partners LLC3,378$1.3m0.16%Added+58614 Nov 2023 (the filing on sec.gov)
Winton Group Ltd924$347kunder 0.1%Trimmed-53013 Nov 2023 (the filing on sec.gov)

Largest increases and reductions, by shares

Q2 2023 to Q3 2023, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (4)

Exited (0)

No exit shown by a manager’s own filing.

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
14 in Q3 2024 to 12 in Q2 2026

Tracked managers listing it, at least.

01020302014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
WST by quarter
QuarterHoldersReported valueBuyersSellers
Q2 20133$230mn.a.n.a.
Q3 20134$290mn.a.n.a.
Q4 20135$370mn.a.n.a.
Q1 20144$348mn.a.n.a.
Q2 20144$344mn.a.n.a.
Q3 20143$349mn.a.n.a.
Q4 20143$403mn.a.n.a.
Q1 20154$757mn.a.n.a.
Q2 20154$795mn.a.n.a.
Q3 20154$798mn.a.n.a.
Q4 20154$896mn.a.n.a.
Q1 20164$1.0bnn.a.n.a.
Q2 20166$1.0bnn.a.n.a.
Q3 20167$1.1bnn.a.n.a.
Q4 20167$1.4bnn.a.n.a.
Q1 20178$1.3bnn.a.n.a.
Q2 201712$1.4bnn.a.n.a.
Q3 20175$1.4bnn.a.n.a.
Q4 20178$1.6bnn.a.n.a.
Q1 20188$1.5bnn.a.n.a.
Q2 20188$1.7bnn.a.n.a.
Q3 201811$2.1bnn.a.n.a.
Q4 201810$1.7bnn.a.n.a.
Q1 201914$2.0bnn.a.n.a.
Q2 201912$2.2bnn.a.n.a.
Q3 201920$2.6bnn.a.n.a.
Q4 201912$2.4bnn.a.n.a.
Q1 202019$2.3bnn.a.n.a.
Q2 202016$3.2bnn.a.n.a.
Q3 202020$3.8bnn.a.n.a.
Q4 202018$3.9bnn.a.n.a.
Q1 202115$3.6bnn.a.n.a.
Q2 202116$4.9bnn.a.n.a.
Q3 202121$5.9bnn.a.n.a.
Q4 202118$6.8bnn.a.n.a.
Q1 202220$6.3bnn.a.n.a.
Q2 202219$4.4bnn.a.n.a.
Q3 202223$2.9bnn.a.n.a.
Q4 202220$2.2bnn.a.n.a.
Q1 202319$3.9bnn.a.n.a.
Q2 202319$4.1bnn.a.n.a.
Q3 202320$4.3bnn.a.n.a.
Q4 202316$3.5bn710
Q1 202417$4.1bn127
Q2 202414$3.2bn97
Q3 202414$2.9bn95
Q4 202417$3.0bn118
Q1 202512$1.4bn94
Q2 202513$1.3bn123
Q3 202513$2.1bn122
Q4 202516$1.6bn2514
Q1 202612$1.3bn2120
Q2 202612$3.1bn1520

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

WST and LLY →WST and JNJ →WST and VRTX →Choose a stock to compare with WST →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own WST, latest filings →Back to the 13F Explorer →