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REGN
Regeneron Pharmaceuticals Inc
stock NASDAQ

Market Open

Jul 27, 2026 2:22:25 PM EDT

673.49USD+2.665%(+17.48)354,478

640.15Bid 673.63Ask 33.48Spread

Pre-market

Jul 27, 2026 8:57:30 AM EDT

661.71USD+0.869%(+5.70)28,538

After-hours

Jul 24, 2026 4:50:30 PM EDT

656.01USD+0.030%(+0.19)0

OverviewOptionsHistoricalExchange VolumeShortsMore

REGN Volume Jul 27, 2026 2:04:55 PM EDT

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Exchange	Day%	Volume	30D%
Off Exchange¹	52.17	179,486	37.19
Nasdaq GSM	17.90	61,604	42.72
IEX	10.74	36,954	7.34
NYSE Arca	6.98	24,031	4.55
Cboe BZX	6.19	21,313	3.47
NYSE	2.05	7,047	1.02
Cboe EDGX	1.83	6,290	1.33
MEMX	1.11	3,822	0.58
Cboe BYX	0.58	1,988	0.49
Nasdaq BX	0.13	445	0.26
NYSE American	0.08	285	0.11
Cboe EDGA	0.07	239	0.24
NYSE National	0.06	222	0.20
MIAX Pearl	0.05	174	0.13
Nasdaq PHLX	0.02	84	0.11
CHX	0.02	81	0.23
24X National	0.00	0	0.01
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

0.38 servings per container

Serving size

911.31K

Calories

344.07K

% Day

% Avg

Off Exchange¹ 179K

52.17%

37.19%

Nasdaq GSM 62K

17.90%

42.72%

IEX 37K

10.74%

7.34%

NYSE Arca 24K

6.98%

4.55%

Cboe BZX 21K

6.19%

3.47%

NYSE 7K

2.05%

1.02%

Cboe EDGX 6K

1.83%

1.33%

MEMX 4K

1.11%

0.58%

Cboe BYX 2K

0.58%

0.49%

Nasdaq BX 445

0.13%

0.26%

NYSE American 285

0.08%

0.11%

Cboe EDGA 239

0.07%

0.24%

NYSE National 222

0.06%

0.20%

MIAX Pearl 174

0.05%

0.13%

Nasdaq PHLX 84

0.02%

0.11%

CHX 81

0.02%

0.23%

24X National 0

0.00%

0.01%

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 179,486, which is 52.17% of today's total volume.
Today's Lit volume is 164,579, which is 47.83%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 37.19%.
The average Lit volume has been 62.81%.

REGN Volume by Exchange

Off Exchange

Nasdaq GSM

IEX

NYSE Arca

Cboe BZX

NYSE

Cboe EDGX

MEMX

Cboe BYX

Nasdaq BX

NYSE American