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REGN
Regeneron Pharmaceuticals Inc
stock NASDAQ

At Close

Sep 11, 2026 3:59:56 PM EDT

781.52USD-1.480%(-11.74)443,987

0.00Bid 0.00Ask 0.00Spread

Pre-market

Sep 10, 2026 8:55:30 AM EDT

805.01USD+1.481%(+11.75)0

After-hours

Sep 11, 2026 4:33:30 PM EDT

781.49USD-0.004%(-0.03)5,045

OverviewOptionsHistoricalExchange VolumeShortsMore

REGN Volume Sep 11, 2026

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	54.29	160,441	47.86
Nasdaq GSM	22.80	67,367	35.97
NYSE Arca	8.33	24,627	4.05
IEX	5.21	15,382	4.13
Cboe BZX	4.15	12,258	3.04
Cboe EDGX	1.58	4,661	1.41
NYSE	1.38	4,090	1.02
MEMX	0.65	1,919	0.63
Cboe BYX	0.61	1,788	0.46
Cboe EDGA	0.26	758	0.24
Nasdaq BX	0.24	714	0.22
NYSE National	0.17	488	0.13
MIAX Pearl	0.14	414	0.17
Nasdaq PHLX	0.10	295	0.13
CHX	0.05	136	0.44
Texas Stock Exchange LLC	0.03	80	0.01
NYSE American	0.02	65	0.10
24X National	0.01	40	0.00
LTSE	0.00	0	0.00

chartexchange.com

¹ A) Dark Pool or Off Exchange? B) Venues explained. C) All trades that update volume from the CTA.

REGN Nutrition Facts

0.43 servings per container

Serving size

694.71K

Calories

295.52K

% Day

% Avg

Off Exchange¹ 160K

54.29%

47.86%

Nasdaq GSM 67K

22.80%

35.97%

NYSE Arca 25K

8.33%

4.05%

IEX 15K

5.21%

4.13%

Cboe BZX 12K

4.15%

3.04%

Cboe EDGX 5K

1.58%

1.41%

NYSE 4K

1.38%

1.02%

MEMX 2K

0.65%

0.63%

Cboe BYX 2K

0.61%

0.46%

Cboe EDGA 758

0.26%

0.24%

Nasdaq BX 714

0.24%

0.22%

NYSE National 488

0.17%

0.13%

MIAX Pearl 414

0.14%

0.17%

Nasdaq PHLX 295

0.10%

0.13%

CHX 136

0.05%

0.44%

Texas Stock Exchange LLC 80

0.03%

0.01%

NYSE American 65

0.02%

0.10%

24X National 40

0.01%

0.00%

LTSE 0

0.00%

¹ A) Dark Pool or Off Exchange? B) Venues explained. C) All trades that update volume from the CTA.

chartexchange.com

REGN Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 160,441, which is 54.29% of today's total volume.
Today's Lit volume is 135,082, which is 45.71%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 47.86%.
The average Lit volume has been 52.14%.

REGN Volume by Exchange

Off Exchange

Nasdaq GSM

NYSE Arca

IEX

Cboe BZX

Cboe EDGX

NYSE

MEMX

Cboe BYX

Cboe EDGA

Nasdaq BX