WST
West Pharmaceutical Services IncCompany with tickers: WST
Market Cap
$24.42B
Shares Outstanding
70,647,595
CIK
105770
CUSIP
955306105
13F Activity (30d)
30 filings
6 filers
Website
Visit website
Total shares sold short and not yet covered, reported to FINRA by broker-dealers and published twice a month (bi-monthly). Days to cover divides the short position by average daily volume; a high value (above 5) can signal short-squeeze potential.
Short Squeeze Score
71/100
Short interest 3.2% of shares — P61
Days to cover 3.5 — P59
Short-volume trend +18.0% — P92
Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-06-15). Equal-weight mean of the available factors.
Short Interest History
| Settlement Date | Current Position | Previous Position | Change | Days to Cover |
|---|---|---|---|---|
| 2026-06-15 | 2,288,165 | 2,326,364 | -38,199 | 3.52 |
| 2026-05-29 | 2,326,364 | 2,282,225 | +44,139 | 3.37 |
| 2026-05-15 | 2,282,225 | 2,425,762 | -143,537 | 2.63 |
| 2026-04-30 | 2,425,762 | 2,662,538 | -236,776 | 2.06 |
| 2026-04-15 | 2,662,538 | 2,926,073 | -263,535 | 3.61 |
| 2026-03-31 | 2,926,073 | 2,563,364 | +362,709 | 3.17 |
| 2026-03-13 | 2,563,364 | 2,372,676 | +190,688 | 2.94 |
| 2026-02-27 | 2,372,676 | 2,240,980 | +131,696 | 3.02 |
| 2026-02-13 | 2,240,980 | 2,560,146 | -319,166 | 1.66 |
| 2026-01-30 | 2,560,146 | 1,918,949 | +641,197 | 1.92 |
| 2026-01-15 | 1,918,949 | 1,774,094 | +144,855 | 2.67 |
| 2025-12-31 | 1,774,094 | 2,062,111 | -288,017 | 2.72 |
| 2025-12-15 | 2,062,111 | 2,064,220 | -2,109 | 3.04 |
| 2025-11-28 | 2,064,220 | 1,874,904 | +189,316 | 3.17 |
| 2025-11-14 | 1,874,904 | 1,433,848 | +441,056 | 2.63 |
| 2025-10-31 | 1,433,848 | 1,517,842 | -83,994 | 1.68 |
| 2025-10-15 | 1,517,842 | 1,674,945 | -157,103 | 2.64 |
| 2025-09-30 | 1,674,945 | 1,678,327 | -3,382 | 2.46 |
| 2025-09-15 | 1,678,327 | 1,534,953 | +143,374 | 2.74 |
| 2025-08-29 | 1,534,953 | 1,793,550 | -258,597 | 2.99 |
| 2025-08-15 | 1,793,550 | 2,166,506 | -372,956 | 3.26 |
| 2025-07-31 | 2,166,506 | 1,831,553 | +334,953 | 1.98 |
| 2025-07-15 | 1,831,553 | 2,143,817 | -312,264 | 3.51 |
| 2025-06-30 | 2,143,817 | 2,082,235 | +61,582 | 2.92 |
Showing 1–24 of 24 settlements