JANE STREET GROUP, LLC

Position in REGN — Regeneron Pharmaceuticals, Inc.

CIK 1595888 NEW YORK, NY

Back to REGN Full portfolio

Position in REGN

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$3,489,329

-$662,837 QoQ

Shares Held

5,596

+4.1% QoQ

Ownership

0.005%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#428

of 1,322 holders

Holding Since

Mar 2020

26 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Common Shares in REGN Over Time

Shares Held

Position Value (USD)

Derivatives in REGN

reported options exposure · as of Jun 30, 2026

CallValue

$198,659,844

CallShares

318,600

PutValue

$112,548,970

PutShares

180,500

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Biotechnology

Healthcare · as of Jun 30, 2026

JANE STREET GROUP, LLC holds $1,364,130,252 across 291 Biotechnology names. REGN ranks #42 (0.3% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	BBIO	BridgeBio Pharma, Inc.	2,934,193	$218,538,693
2	MDGL	Madrigal Pharmaceuticals, Inc.	191,541	$102,847,939
3	AXSM	Axsome Therapeutics, Inc.	403,995	$98,885,855
4	TGTX	Tg Therapeutics, Inc.	1,752,646	$96,290,370
5	EXEL	Exelixis, Inc.	1,402,438	$76,306,651
6	QURE	uniQure N.V.	1,610,483	$74,178,846
7	HALO	Halozyme Therapeutics, Inc.	694,684	$54,372,915
8	TVTX	Travere Therapeutics, Inc.	938,699	$53,327,489

All Filings in REGN

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50 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$198,659,844	318,600	+97.3%	Call	Defined	2026-08-14
2026-06-30	$3,489,329	5,596	+4.1%	Shares	Defined	2026-08-14
2026-06-30	$112,548,970	180,500	+58.8%	Put	Defined	2026-08-14
2026-03-31	$124,781,360	161,500	-68.7%	Call	Defined	2026-05-12
2026-03-31	$87,849,168	113,700	-16.1%	Put	Defined	2026-05-12
2026-03-31	$4,152,166	5,374	-57.4%	Shares	Defined	2026-05-12
2025-12-31	$398,439,294	516,200	+15.8%	Call	Defined	2026-02-12
2025-12-31	$104,588,385	135,500	-36.6%	Put	Defined	2026-02-12
2025-12-31	$9,741,769	12,621	-86.9%	Shares	Defined	2026-02-12
2025-09-30	$54,377,131	96,710	+72.6%	Shares	Defined	2025-11-14
2025-09-30	$120,213,326	213,800	+398.4%	Put	Defined	2025-11-14
2025-09-30	$250,603,739	445,700	+471.4%	Call	Defined	2025-11-14
2025-06-30	$40,950,000	78,000	+35.7%	Call	Defined	2025-08-14
2025-06-30	$29,412,600	56,024	-41.9%	Shares	Defined	2025-08-14
2025-06-30	$22,522,500	42,900	+5.1%	Put	Defined	2025-08-14
2025-03-31	$61,177,189	96,459	+5.2%	Shares	Defined	2025-05-19
2025-03-31	$36,468,225	57,500	+44.1%	Call	Defined	2025-05-19
2025-03-31	$25,876,584	40,800	+67.2%	Put	Defined	2025-05-19
2024-12-31	$17,380,852	24,400	-14.4%	Put	Defined	2025-02-14
2024-12-31	$65,289,317	91,656	-27.8%	Shares	Defined	2025-02-14
2024-12-31	$28,421,967	39,900	-45.8%	Call	Defined	2025-02-14
2024-09-30	$77,371,264	73,600	-0.5%	Call	Defined	2024-11-15
2024-09-30	$29,960,340	28,500	-58.9%	Put	Defined	2024-11-15
2024-09-30	$133,494,864	126,988	-11.2%	Shares	Defined	2024-11-15
2024-06-30	$150,352,993	143,053	+174.2%	Shares	Defined	2024-08-15
2024-03-31	$50,216,952	52,174	-29.3%	Shares	Defined	2024-05-16
2023-12-31	$64,820,436	73,803	+87.3%	Shares	Defined	2024-02-15
2023-09-30	$32,432,852	39,410	-43.5%	Shares	Defined	2023-11-15
2023-06-30	$50,116,008	69,747	+102.1%	Shares	Defined	2023-08-14
2023-03-31	$28,355,009	34,509	-78.2%	Shares	Defined	2023-05-16
2022-12-31	$114,388,631	158,545	+29.5%	Shares	Defined	2023-02-15
2022-09-30	$84,312,865	122,393	+954.3%	Shares	Defined	2022-11-15
2022-06-30	$6,862,428	11,609	-71.8%	Shares	Defined	2022-08-16
2022-03-31	$48,400,506	69,300	-17.5%	Put	Defined	2022-05-17
2022-03-31	$51,683,080	74,000	-44.7%	Call	Defined	2022-05-17
2022-03-31	$28,705,060	41,100	+100.0%	Shares	Defined	2022-05-17
2021-12-31	$53,047,680	84,000	-12.4%	Put	Defined	2022-02-15
2021-12-31	$84,560,528	133,900	-4.6%	Call	Defined	2022-02-15
2021-12-31	$12,977,735	20,550	-51.8%	Shares	Defined	2022-02-15
2021-09-30	$25,824,240	42,672	-37.1%	Shares	Defined	2021-11-16
2021-09-30	$58,036,762	95,900	+13.5%	Put	Defined	2021-11-16
2021-09-30	$84,906,754	140,300	+4.1%	Call	Defined	2021-11-16
2021-06-30	$37,898,055	67,852	+12.5%	Shares	Defined	2021-08-16
2021-06-30	$75,291,192	134,800	+53.4%	Call	Defined	2021-08-16
2021-06-30	$47,196,630	84,500	-20.3%	Put	Defined	2021-08-16
2021-03-31	$28,542,642	60,326	—	Shares	Defined	2021-05-18
2021-03-31	$41,589,006	87,900	-3.1%	Call	Defined	2021-05-18
2021-03-31	$50,152,840	106,000	-17.4%	Put	Defined	2021-05-18
2020-12-31	$43,818,077	90,700	—	Call	Defined	2021-02-17
2020-12-31	$62,031,324	128,400	—	Put	Defined	2021-02-17
No filing history on record for this holder in this stock.