WST β€” WEST PHARMACEUTICAL SVSC INC

Ownership history in BROOKTREE CAPITAL MANAGEMENT  Β·  16 quarters on record

AI Ownership Summary

BROOKTREE CAPITAL MANAGEMENT reported WEST PHARMACEUTICAL SVSC INC (WST) in 16 quarterly 13F filings from 2023 Q3 through 2025 Q4. Peak portfolio weight reached 1.49% in 2023 Q3. The latest visible filing shows WST at 0.94% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this WST ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was BROOKTREE CAPITAL MANAGEMENT's position in WEST PHARMACEUTICAL SVSC INC, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2025 Q4

WST was reported at 0.94% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
1.49% in 2023 Q3

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q3 to 2025 Q4

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

WST stock page BROOKTREE CAPITAL MANAGEMENT fund profile BROOKTREE CAPITAL MANAGEMENT full holdings
How BROOKTREE CAPITAL MANAGEMENT held WST β€” position size vs. price
% of Fund (quarterly)    WST price (quarter-end, indexed to 100)
πŸ“‹ Quarterly Holdings History 10 quarters  β–Ύ
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 REDUCED 5,159 -140 -2.6% 0.94% $1.4M 2026-02-14 (Est.) $250.49
2025 Q3 ADDED 5,299 +374 +7.6% 0.88% $1.4M 2025-11-07 $270.58
2025 Q2 ADDED 4,925 +185 +3.9% 0.70% $1.1M 2025-08-06 $236.87
2025 Q1 ADDED 4,740 +154 +3.4% 0.80% $1.1M 2025-05-06 $204.84
2024 Q4 REDUCED 4,586 -18 -0.4% 1.11% $1.5M 2025-02-10 $322.99
2024 Q3 ADDED 4,604 +139 +3.1% 1.12% $1.4M 2024-11-06 $327.80
2024 Q2 REDUCED 4,465 -198 -4.2% 1.26% $1.5M 2024-08-05 $300.16
2024 Q1 ADDED 4,663 +187 +4.2% 1.42% $1.8M 2024-05-06 $364.54
2023 Q4 REDUCED 4,476 -265 -5.6% 1.27% $1.6M 2024-02-05 $395.24
2023 Q3 ADDED 4,741 +141 +3.1% 1.49% $1.8M 2023-11-06 $330.66
6 older quarters hidden  β€”  Sign in free or upgrade to Premium to see full history

🏒 Other funds also holding WST

As of 2025 Q4 β€” sorted by position size

Alpine Peaks Capital, LP 3Y 6.94% Seilern Investment Management Ltd 5.94% McCollum Christoferson Group LLC 3Y 7Y 3.27% Longview Partners (Guernsey) LTD 3Y 7Y 3.25% GENERATION INVESTMENT MANAGEMENT LLP 3Y 7Y 2.98% AMI ASSET MANAGEMENT CORP 3Y 7Y 2.48% Findlay Park Partners LLP 3Y 7Y 2.34% GRACE & WHITE INC /NY 3Y 7Y 2.14% William Allan Corp 3Y 2.05% STEADFAST CAPITAL MANAGEMENT LP 3Y 7Y 2.03%

FAQ About BROOKTREE CAPITAL MANAGEMENT and WST

These are the practical questions this page is built to answer before you even open the full history table.

How long has BROOKTREE CAPITAL MANAGEMENT reported owning WST?

BROOKTREE CAPITAL MANAGEMENT reported WST across 10 quarterly 13F filings, from 2023 Q3 through 2025 Q4.

What was the largest reported WST position in BROOKTREE CAPITAL MANAGEMENT's portfolio?

The largest reported portfolio weight for WST was 1.49% in 2023 Q3.

What is the latest reported WST position on this page?

The most recent filing on this page is 2025 Q4, when BROOKTREE CAPITAL MANAGEMENT reported 5,159 shares, equal to 0.94% of portfolio, with an estimated market value of $1.4M.

What does the chart on this WST ownership page compare?

The chart compares BROOKTREE CAPITAL MANAGEMENT's quarterly WST portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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