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WST · West Pharmaceutical Services Inc · Off Exchange

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$370.76 -5.87 (-1.56%) At close · Sep 30
S&P 500 member Russell 1000 member Rebalance outlook locked
Market Cap
$26.07B
Shares
70.38M
Volume · Sep 30 471.18K Avg daily vol (3M) 644.35K

Weekly off-exchange (dark pool / OTC) trading volume reported to FINRA under its OTC/ATS Transparency data. ATS volume is executed on alternating trading systems (dark pools); non-ATS OTC is other over-the-counter dealer volume. The off-exchange share is total off-exchange volume as a percentage of consolidated weekly trading volume for the same Monday–Friday week.

1M 3M 6M 1Y 5Y All

Off-Exchange Volume History

Week Start ATS Volume Non-ATS OTC Volume Total Off-Exchange % of FINRA Weekly Volume
2026-08-24 714,747 247,491 962,238 44.6%
2026-08-17 666,516 293,928 960,444 44.3%
2026-08-10 811,602 291,635 1,103,237 43.1%
2026-08-03 683,165 353,511 1,036,676 39.8%
2026-07-27 1,807,184 660,672 2,467,856 49.2%
2026-07-20 1,747,679 747,168 2,494,847 44.5%
2026-07-13 931,297 297,098 1,228,395 40.1%
2026-07-06 1,016,003 289,021 1,305,024 38.9%
2026-06-29 1,009,366 269,287 1,278,653 41.9%
2026-06-22 1,647,523 929,916 2,577,439 48.0%
2026-06-15 906,890 428,761 1,335,651 38.4%
2026-06-08 983,483 376,476 1,359,959 41.4%
2026-06-01 1,039,675 396,001 1,435,676 43.4%
2026-05-25 964,262 458,784 1,423,046 44.2%
2026-05-18 864,887 344,576 1,209,463 40.3%
2026-05-11 1,201,933 624,858 1,826,791 44.5%
2026-05-04 1,270,768 598,621 1,869,389 38.9%
2026-04-27 1,524,375 435,131 1,959,506 40.1%
2026-04-20 2,445,953 571,289 3,017,242 43.2%
2026-04-13 1,127,417 444,665 1,572,082 40.5%
2026-04-06 1,029,729 317,500 1,347,229 40.4%
2026-03-30 1,016,881 386,078 1,402,959 40.3%
2026-03-23 1,293,992 597,227 1,891,219 42.0%
2026-03-16 1,177,100 553,357 1,730,457 34.8%
2026-03-09 1,327,748 519,909 1,847,657 41.2%
2026-03-02 1,108,526 437,612 1,546,138 36.6%
2026-02-23 946,811 527,357 1,474,168 40.0%
2026-02-16 1,069,309 293,710 1,363,019 40.1%
2026-02-09 2,428,785 592,382 3,021,167 43.0%
2026-02-02 2,170,916 599,196 2,770,112 42.8%
2026-01-26 1,446,056 968,473 2,414,529 47.0%
2026-01-19 2,098,899 1,335,397 3,434,296 51.5%
2026-01-12 1,474,327 516,374 1,990,701 46.2%
2026-01-05 994,642 612,597 1,607,239 42.7%
2025-12-29 558,960 144,164 703,124 41.6%
2025-12-22 518,994 193,194 712,188 39.6%
2025-12-15 1,128,309 502,844 1,631,153 32.6%
2025-12-08 1,012,519 347,841 1,360,360 40.2%
2025-12-01 946,640 558,499 1,505,139 44.5%
2025-11-24 616,137 435,716 1,051,853 47.5%
2025-11-17 1,659,839 373,166 2,033,005 55.7%
2025-11-10 957,689 505,446 1,463,135 45.6%
2025-11-03 1,340,378 473,143 1,813,521 46.4%
2025-10-27 1,239,934 418,018 1,657,952 46.4%
2025-10-20 1,812,567 530,527 2,343,094 45.0%
2025-10-13 980,325 451,991 1,432,316 47.2%
2025-10-06 803,072 396,548 1,199,620 43.6%
Showing 1–47 of 47 weeks
Key facts CIK 105770 CUSIP 955306105 13F (30d) 19 filings 15 filers Visit website Investor relations