ALKS · Alkermes plc.
$49.06
-0.39 (-0.79%)
At close · Aug 14
Market Cap
$8.23B
Shares
167.76M
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.
Off-Exchange Volume History
| Week Start | ATS Volume | Non-ATS OTC Volume | Total Off-Exchange | % of FINRA Weekly Volume |
|---|---|---|---|---|
| 2026-07-06 | 2,563,524 | 625,406 | 3,188,930 | 37.5% |
| 2026-06-29 | 3,036,338 | 821,322 | 3,857,660 | 42.0% |
| 2026-06-22 | 5,157,811 | 2,012,434 | 7,170,245 | 35.5% |
| 2026-06-15 | 1,585,638 | 2,632,164 | 4,217,802 | 34.0% |
| 2026-06-08 | 2,791,742 | 1,200,822 | 3,992,564 | 43.1% |
| 2026-06-01 | 3,104,700 | 1,077,073 | 4,181,773 | 41.1% |
| 2026-05-25 | 3,232,493 | 1,416,451 | 4,648,944 | 44.1% |
| 2026-05-18 | 2,496,726 | 945,412 | 3,442,138 | 42.3% |
| 2026-05-11 | 3,546,525 | 2,541,810 | 6,088,335 | 48.1% |
| 2026-05-04 | 3,515,883 | 2,093,233 | 5,609,116 | 42.7% |
| 2026-04-27 | 2,031,190 | 1,235,322 | 3,266,512 | 36.1% |
| 2026-04-20 | 1,255,865 | 555,994 | 1,811,859 | 31.5% |
| 2026-04-13 | 2,290,510 | 1,095,038 | 3,385,548 | 35.7% |
| 2026-04-06 | 3,937,082 | 996,261 | 4,933,343 | 43.0% |
| 2026-03-30 | 7,112,886 | 2,651,157 | 9,764,043 | 44.8% |
| 2026-03-23 | 2,797,624 | 1,542,265 | 4,339,889 | 35.6% |
| 2026-03-16 | 3,410,948 | 1,977,061 | 5,388,009 | 43.2% |
| 2026-03-09 | 3,356,903 | 914,526 | 4,271,429 | 36.7% |
| 2026-03-02 | 3,376,095 | 1,043,932 | 4,420,027 | 41.2% |
| 2026-02-23 | 4,128,370 | 1,273,902 | 5,402,272 | 40.4% |
| 2026-02-16 | 1,724,851 | 794,027 | 2,518,878 | 38.0% |
| 2026-02-09 | 1,630,424 | 1,017,658 | 2,648,082 | 37.2% |
| 2026-02-02 | 2,175,974 | 595,358 | 2,771,332 | 33.4% |
| 2026-01-26 | 3,230,479 | 1,453,692 | 4,684,171 | 42.8% |
| 2026-01-19 | 3,271,709 | 1,609,876 | 4,881,585 | 43.6% |
| 2026-01-12 | 3,056,538 | 991,158 | 4,047,696 | 37.0% |
| 2026-01-05 | 3,476,575 | 1,263,573 | 4,740,148 | 42.7% |
| 2025-12-29 | 1,183,849 | 507,555 | 1,691,404 | 36.1% |
| 2025-12-22 | 947,236 | 483,534 | 1,430,770 | 35.4% |
| 2025-12-15 | 2,309,468 | 1,937,738 | 4,247,206 | 37.2% |
| 2025-12-08 | 2,514,938 | 1,097,837 | 3,612,775 | 39.3% |
| 2025-12-01 | 2,773,208 | 658,926 | 3,432,134 | 42.8% |
| 2025-11-24 | 1,915,171 | 696,516 | 2,611,687 | 33.7% |
| 2025-11-17 | 3,397,745 | 1,430,029 | 4,827,774 | 43.2% |
| 2025-11-10 | 7,009,737 | 3,939,666 | 10,949,403 | 51.4% |
| 2025-11-03 | 5,898,645 | 1,399,820 | 7,298,465 | 46.0% |
| 2025-10-27 | 4,792,791 | 1,758,837 | 6,551,628 | 45.1% |
| 2025-10-20 | 4,724,006 | 1,889,833 | 6,613,839 | 47.2% |
| 2025-10-13 | 3,344,832 | 1,225,225 | 4,570,057 | 44.3% |
| 2025-10-06 | 2,231,498 | 1,385,558 | 3,617,056 | 44.8% |
| 2025-09-29 | 2,617,633 | 1,427,311 | 4,044,944 | 40.8% |
| 2025-09-22 | 2,371,990 | 923,039 | 3,295,029 | 39.7% |
| 2025-09-15 | 3,088,213 | 1,318,370 | 4,406,583 | 40.0% |
| 2025-09-08 | 4,890,678 | 1,663,824 | 6,554,502 | 41.0% |
| 2025-09-01 | 2,798,988 | 1,417,788 | 4,216,776 | 47.2% |
| 2025-08-25 | 1,664,450 | 757,648 | 2,422,098 | 39.1% |
| 2025-08-18 | 2,110,173 | 674,514 | 2,784,687 | 39.6% |
Showing 1–47 of 47 weeks
Key facts
CIK
1520262
CUSIP
G01767105
13F (30d)
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