West Pharmaceutical Services Inc.

WST

Held by 0 specialist biotech funds

Short interest: 4.1% of float.

Share

Signal Score

0.0/10

No fund positions

●●

No recent insider activity●●

No upcoming catalysts●●

Not held by tracked funds●●

See how each signal contributes— fund overlap, insider activity, catalyst timing, short interest (free trial)

Fund Holdings

WST is not currently held by any of our tracked specialist biotech funds.

Fund positions update quarterly with new 13F filings. Explore fund convergence to see which tickers multiple funds hold.

Short Interest

Short Shares

2.56M

Change

+14.4%

Days to Cover

3.1

% of Float

4.1%

Settlement

Mar 13, 2026

Short interest over 2 periods

Catalysts

No catalysts tracked.

Position Details

No position data available.

Know which insider moves are real

See who's buying with their own money vs. routine exercises
AI explains why each move matters right now

Start 14-Day Free Trial — $29/mo

Insider Signals

No insider purchases or sales detected in the past 90 days.

Research Links

Yahoo Finance →SEC EDGAR →ClinicalTrials.gov →

Related Research

Short Interest, Days to Cover, and Why Short Sellers Are the Third Expert Signal in Biotech

7 min read

Biotech Short Squeeze Indicators: How to Find and Evaluate Squeeze Candidates

8 min read

Track specialist biotech funds, insider signals, and AI analysis

Start 14-Day Free Trial

Get free weekly alerts on fund moves and catalysts:

Terms

Privacy

Disclaimer