MILLENNIUM MANAGEMENT LLC

Position in ALT — Altimmune, Inc.

CIK 1273087 NEW YORK, NY

Back to ALT Full portfolio

Position in ALT

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$10,035,228

+$9,286,576 QoQ

Shares Held

3,258,191

+1471.1% QoQ

Ownership

1.68%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Jun 2020

24 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in ALT Over Time

Shares Held

Position Value (USD)

Derivatives in ALT

reported options exposure · as of Jun 30, 2025

CallValue

$63,855

CallShares

16,500

PutValue

$387,000

PutShares

100,000

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 Mar 31, 2026

MILLENNIUM MANAGEMENT LLC holds $4,565,450,068 across 341 Biotechnology names. ALT ranks #107 (0.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	JAZZ	Jazz Pharmaceuticals plc	1,262,511	$238,677,704
2	INSM	INSMED Inc	1,157,786	$189,321,166
3	BMRN	Biomarin Pharmaceutical Inc	3,010,308	$170,052,298
4	TERN	Terns Pharmaceuticals, Inc.	3,011,558	$158,769,337
5	ALNY	Alnylam Pharmaceuticals, Inc.	447,887	$148,192,371
6	FOLD	AMICUS THERAPEUTICS, INC.	7,908,459	$114,356,317
7	ARDX	Ardelyx, Inc.	17,842,370	$106,875,796
8	BLTE	Belite Bio, Inc	570,088	$90,894,830

All Filings in ALT

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36 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$10,035,228	3,258,191	+1471.1%	Shares	Sole	2026-05-15
2025-12-31	$748,652	207,383	-43.6%	Shares	Sole	2026-02-17
2025-09-30	$1,385,784	367,582	+267.6%	Shares	Sole	2025-11-14
2025-06-30	$387,000	100,000	+27.7%	Put	Sole	2025-08-14
2025-06-30	$302,997	78,294	+374.5%	Shares	Sole	2025-08-14
2025-06-30	$63,855	16,500	-98.5%	Call	Sole	2025-08-14
2025-03-31	$5,556,495	1,111,299	+344.5%	Shares	Sole	2025-05-15
2025-03-31	$1,250,000	250,000	+400.0%	Call	Sole	2025-05-15
2025-03-31	$250,000	50,000	-85.5%	Put	Sole	2025-05-15
2024-12-31	$2,492,042	345,637	+764.1%	Shares	Sole	2025-02-14
2024-09-30	$245,600	40,000	-61.6%	Call	Sole	2024-11-14
2024-09-30	$639,499	104,153	+679.9%	Shares	Sole	2024-11-14
2024-06-30	$88,810	13,355	-99.2%	Shares	Sole	2024-08-14
2024-03-31	$16,187,727	1,590,150	+813.1%	Shares	Sole	2024-05-15
2023-12-31	$1,959,086	174,141	+79.1%	Shares	Sole	2024-02-14
2023-09-30	$252,805	97,233	-89.7%	Shares	Sole	2023-11-14
2023-06-30	$3,325,591	942,094	-11.9%	Shares	Sole	2023-08-14
2023-03-31	$4,510,103	1,068,745	+228.8%	Shares	Sole	2023-05-15
2023-03-31	$1,371,500	325,000	+983.3%	Call	Sole	2023-05-15
2023-03-31	$126,600	30,000	-79.3%	Put	Sole	2023-05-15
2022-12-31	$2,380,940	144,738	-71.4%	Shares	Sole	2023-02-14
2022-09-30	$6,458,133	505,727	-38.7%	Shares	Sole	2022-11-14
2022-06-30	$9,648,381	824,648	+18.3%	Shares	Sole	2022-08-15
2022-03-31	$4,245,704	697,160	+540.4%	Shares	Sole	2022-05-16
2021-12-31	$997,139	108,858	+81.4%	Shares	Sole	2022-02-14
2021-09-30	$678,600	60,000	-56.6%	Call	Sole	2021-11-15
2021-09-30	$1,563,652	138,254	-21.0%	Shares	Sole	2021-11-15
2021-06-30	$1,723,750	175,000	+775.0%	Put	Sole	2021-08-16
2021-06-30	$197,000	20,000	-60.0%	Call	Sole	2021-08-16
2021-03-31	$706,500	50,000	-64.3%	Call	Sole	2021-05-17
2021-03-31	$1,978,200	140,000	-80.9%	Put	Sole	2021-05-17
2021-03-31	$10,353,644	732,742	+94.3%	Shares	Sole	2021-05-17
2020-12-31	$4,254,680	377,188	+35.6%	Shares	Sole	2021-02-16
2020-09-30	$3,672,807	278,243	+85.5%	Shares	Sole	2020-11-16
2020-06-30	$1,606,500	150,000	-70.4%	Call	Sole	2020-08-14
2020-06-30	$5,424,872	506,524	—	Shares	Sole	2020-08-14
No filing history on record for this holder in this stock.