CITIGROUP INC

Position in BIIB — Biogen Inc.

CIK 831001 NEW YORK, NY

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Position in BIIB

as of Jun 30, 2026 · filed Aug 3, 2026 Compact

Position Value

$158,699,741

+$66,941,794 QoQ

Shares Held

734,517

+46.8% QoQ

Ownership

0.498%

of shares outstanding

% of Portfolio

0.08%

of 13F equity value

Holder Rank

#34

of 1,037 holders

Holding Since

Mar 2020

26 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Common Shares in BIIB Over Time

Shares Held

Position Value (USD)

Derivatives in BIIB

reported options exposure · as of Jun 30, 2026

CallValue

$16,485,378

CallShares

76,300

PutValue

PutShares

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 Drug Manufacturers - General

Healthcare · as of Jun 30, 2026

CITIGROUP INC holds $6,106,168,968 across 18 Drug Manufacturers - General names. BIIB ranks #10 (2.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	LLY	ELI LILLY & Co	1,199,053	$1,438,180,257
2	JNJ	Johnson & Johnson	3,925,186	$996,879,486
3	AZN	Astrazeneca PLC	4,895,753	$928,332,681
4	ABBV	AbbVie Inc.	2,327,207	$585,618,368
5	MRK	Merck & Co., Inc.	3,614,905	$464,515,291
6	PFE	Pfizer Inc	19,228,115	$463,013,007
7	GILD	Gilead Sciences, Inc.	2,969,159	$375,123,546
8	AMGN	Amgen Inc	1,020,869	$369,677,081

All Filings in BIIB

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50 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$16,485,378	76,300	+259.9%	Call	Defined	2026-08-03
2026-06-30	$158,699,741	734,517	+46.8%	Shares	Defined	2026-08-03
2026-03-31	$3,886,596	21,200	-73.2%	Call	Defined	2026-05-11
2026-03-31	$91,757,947	500,507	-12.8%	Shares	Defined	2026-05-11
2025-12-31	$13,920,809	79,100	0.0%	Call	Defined	2026-02-13
2025-12-31	$100,990,805	573,844	+183.7%	Shares	Defined	2026-02-13
2025-12-31	$2,569,454	14,600	0.0%	Put	Defined	2026-02-13
2025-09-30	$11,080,328	79,100	0.0%	Call	Defined	2025-11-10
2025-09-30	$28,338,042	202,299	-9.4%	Shares	Defined	2025-11-10
2025-09-30	$2,045,168	14,600	0.0%	Put	Defined	2025-11-10
2025-06-30	$1,833,614	14,600	-50.5%	Put	Defined	2025-08-11
2025-06-30	$9,934,169	79,100	-15.9%	Call	Defined	2025-08-11
2025-06-30	$28,036,709	223,240	-26.2%	Shares	Defined	2025-08-11
2025-03-31	$4,036,780	29,500	+10.1%	Put	Defined	2025-05-12
2025-03-31	$41,409,834	302,615	+14.5%	Shares	Defined	2025-05-12
2025-03-31	$12,862,960	94,000	-42.8%	Call	Defined	2025-05-12
2024-12-31	$40,422,717	264,339	+11.0%	Shares	Defined	2025-02-12
2024-12-31	$4,098,256	26,800	+458.3%	Put	Defined	2025-02-12
2024-12-31	$25,124,756	164,300	+5034.4%	Call	Defined	2025-02-12
2024-09-30	$46,162,606	238,148	+6.6%	Shares	Defined	2024-11-12
2024-09-30	$930,432	4,800	-75.8%	Put	Defined	2024-11-12
2024-09-30	$620,288	3,200	-82.4%	Call	Defined	2024-11-12
2024-06-30	$51,776,301	223,347	+2.1%	Shares	Defined	2024-08-12
2024-06-30	$4,219,124	18,200	+468.8%	Call	Defined	2024-08-12
2024-06-30	$4,590,036	19,800	+312.5%	Put	Defined	2024-08-12
2024-03-31	$47,161,943	218,717	-0.9%	Shares	Defined	2024-05-10
2024-03-31	$1,035,024	4,800	-88.5%	Put	Defined	2024-05-10
2024-03-31	$690,016	3,200	-93.3%	Call	Defined	2024-05-10
2023-12-31	$10,790,709	41,700	-37.6%	Put	Defined	2024-02-09
2023-12-31	$57,098,373	220,653	-0.5%	Shares	Defined	2024-02-09
2023-12-31	$12,446,837	48,100	-40.0%	Call	Defined	2024-02-09
2023-09-30	$56,994,020	221,758	-5.6%	Shares	Defined	2023-12-06
2023-09-30	$20,612,202	80,200	+99.5%	Call	Defined	2023-12-06
2023-09-30	$17,168,268	66,800	+21.9%	Put	Defined	2023-12-06
2023-06-30	$15,609,780	54,800	+66.1%	Put	Defined	2023-08-10
2023-06-30	$66,911,831	234,902	+2.1%	Shares	Defined	2023-08-10
2023-06-30	$11,450,970	40,200	-38.2%	Call	Defined	2023-08-10
2023-03-31	$63,937,444	229,966	+16.8%	Shares	Defined	2023-05-11
2023-03-31	$9,174,990	33,000	+46.7%	Put	Defined	2023-05-11
2023-03-31	$18,071,950	65,000	+62.5%	Call	Defined	2023-05-11
2022-12-31	$54,505,052	196,826	-22.9%	Shares	Defined	2023-02-09
2022-12-31	$6,230,700	22,500	-60.9%	Put	Defined	2023-02-09
2022-09-30	$15,352,500	57,500	—	Put	Defined	2022-11-10
2022-09-30	$10,680,000	40,000	+60.0%	Call	Defined	2022-11-10
2022-09-30	$68,141,070	255,210	+37.0%	Shares	Defined	2022-11-10
2022-06-30	$37,998,709	186,323	-9.5%	Shares	Defined	2022-08-10
2022-06-30	$5,098,500	25,000	-59.0%	Call	Defined	2022-08-10
2022-03-31	$43,336,845	205,778	-46.2%	Shares	Defined	2022-05-12
2021-12-31	$14,635,120	61,000	—	Call	Defined	2022-02-10
2021-12-31	$91,825,538	382,734	—	Shares	Defined	2022-02-10
No filing history on record for this holder in this stock.