REGN
Regeneron Pharmaceuticals, Inc.Company with tickers: REGN
CIK
872589
CUSIP
75886F107
Shares Outstanding
93,955,110
Website
https://www.regeneron.com
13F Activity (30d)
64 filings
16 filers
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 |
|---|---|---|---|---|
| 2026-06-01 | 1,417,601 | 614,846 | 2,032,447 | 40.0% |
| 2026-05-25 | 1,494,042 | 1,592,662 | 3,086,704 | 50.0% |
| 2026-05-18 | 2,408,725 | 955,317 | 3,364,042 | 46.0% |
| 2026-05-11 | 1,071,499 | 1,269,774 | 2,341,273 | 74.8% |
| 2026-05-04 | 823,054 | 648,985 | 1,472,039 | 50.5% |
| 2026-04-27 | 1,376,944 | 631,114 | 2,008,058 | 45.8% |
| 2026-04-20 | 1,015,919 | 677,037 | 1,692,956 | 52.7% |
| 2026-04-13 | 758,992 | 495,189 | 1,254,181 | 52.4% |
| 2026-04-06 | 778,304 | 578,144 | 1,356,448 | 45.1% |
| 2026-03-30 | 815,079 | 365,174 | 1,180,253 | 40.7% |
| 2026-03-23 | 537,685 | 331,859 | 869,544 | 33.7% |
| 2026-03-16 | 678,955 | 567,417 | 1,246,372 | 35.7% |
| 2026-03-09 | 663,946 | 328,086 | 992,032 | 37.5% |
| 2026-03-02 | 724,707 | 599,361 | 1,324,068 | 40.2% |
| 2026-02-23 | 824,479 | 658,524 | 1,483,003 | 43.8% |
| 2026-02-16 | 568,192 | 464,073 | 1,032,265 | 40.6% |
| 2026-02-09 | 1,042,924 | 997,749 | 2,040,673 | 47.5% |
| 2026-02-02 | 1,126,651 | 588,925 | 1,715,576 | 42.2% |
| 2026-01-26 | 1,374,072 | 818,664 | 2,192,736 | 47.1% |
| 2026-01-19 | 805,016 | 507,455 | 1,312,471 | 42.8% |
| 2026-01-12 | 1,512,145 | 959,221 | 2,471,366 | 45.1% |
| 2026-01-05 | 1,508,946 | 604,578 | 2,113,524 | 44.1% |
| 2025-12-29 | 398,017 | 315,101 | 713,118 | 40.8% |
| 2025-12-22 | 607,038 | 533,700 | 1,140,738 | 51.0% |
| 2025-12-15 | 1,266,524 | 1,200,104 | 2,466,628 | 42.5% |
| 2025-12-08 | 1,288,396 | 872,011 | 2,160,407 | 44.2% |
| 2025-12-01 | 1,385,324 | 922,647 | 2,307,971 | 46.0% |
| 2025-11-24 | 925,650 | 965,036 | 1,890,686 | 45.7% |
| 2025-11-17 | 2,419,781 | 1,044,931 | 3,464,712 | 45.5% |
| 2025-11-10 | 1,432,076 | 1,024,007 | 2,456,083 | 45.3% |
| 2025-11-03 | 1,029,312 | 648,732 | 1,678,044 | 39.3% |
| 2025-10-27 | 1,848,254 | 1,346,691 | 3,194,945 | 45.4% |
| 2025-10-20 | 1,093,911 | 495,027 | 1,588,938 | 43.7% |
| 2025-10-13 | 1,423,265 | 775,459 | 2,198,724 | 44.4% |
| 2025-10-06 | 1,462,359 | 913,618 | 2,375,977 | 43.3% |
| 2025-09-29 | 2,382,374 | 894,099 | 3,276,473 | 47.4% |
| 2025-09-22 | 1,635,078 | 785,252 | 2,420,330 | 45.9% |
| 2025-09-15 | 1,367,703 | 935,961 | 2,303,664 | 38.0% |
| 2025-09-08 | 1,216,385 | 606,321 | 1,822,706 | 40.8% |
| 2025-09-01 | 1,315,934 | 791,777 | 2,107,711 | 49.9% |
| 2025-08-25 | 1,084,147 | 862,249 | 1,946,396 | 45.6% |
| 2025-08-18 | 1,853,158 | 807,101 | 2,660,259 | 49.5% |
| 2025-08-11 | 1,437,757 | 883,583 | 2,321,340 | 45.8% |
| 2025-08-04 | 1,581,003 | 903,225 | 2,484,228 | 49.1% |
| 2025-07-28 | 1,613,192 | 589,319 | 2,202,511 | 43.7% |
| 2025-07-21 | 1,124,157 | 924,537 | 2,048,694 | 46.9% |
| 2025-07-14 | 1,465,886 | 544,606 | 2,010,492 | 39.4% |
| 2025-07-07 | 1,116,935 | 675,608 | 1,792,543 | 41.5% |
| 2025-06-30 | 1,009,922 | 502,268 | 1,512,190 | 43.3% |
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