What does CUSIP 02155H200 represent in this 13F holders report?

CUSIP 02155H200 is the security identifier for ALT - Altimmune, Inc. - Common Stock, par value $0.0001 per share used to aggregate holder disclosures.

How many institutions held ALT - Altimmune, Inc. - Common Stock, par value $0.0001 per share in Q4 2023?

142 institutional investors reported ALT - Altimmune, Inc. - Common Stock, par value $0.0001 per share for Q4 2023. Use the holders table for investor-level position and value details.

Altimmune, Inc. - Common Stock, par value $0.0001 per share (ALT)

CUSIP: 02155H200

Q4 2023 13F Holders as of 31 Dec 2023

Type / Class: Equity / Common Stock, par value $0.0001 per share
Shares outstanding: 200,000,000
Total 13F shares: 33,518,969
Share change: +2,623,657
Total reported value: $377,122,817
Put/Call ratio: 65%
Price per share: $11.25
Number of holders: 142
Value change: +$87,837,677
Number of buys: 89
Number of sells: 49

Quarterly Holders Quick Answers

What is CUSIP 02155H200?
CUSIP 02155H200 identifies ALT - Altimmune, Inc. - Common Stock, par value $0.0001 per share in SEC institutional holdings data.

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Explore More Reporting Periods

Jump to adjacent filing periods for faster comparison and easier crawl discovery.

Newer quarter: Q1 2024
Previous quarter: Q3 2023

Recent filing periods for CUSIP 02155H200:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Top shareholders of ALT - Altimmune, Inc. - Common Stock, par value $0.0001 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
BlackRock Finance, Inc.	13F	Company	1.9%	3,786,916	$9,845,982	—	30 Sep 2023	13F
Nuveen Asset Management, LLC	13F	Company	1.7%	3,446,778	$8,961,622	—	30 Sep 2023	13F
VANGUARD GROUP INC	13F	Company	1.7%	3,344,295	$8,695,167	—	30 Sep 2023	13F
TANG CAPITAL MANAGEMENT LLC	13F	Company	1.4%	2,750,000	$7,150,000	—	30 Sep 2023	13F
MARSHALL WACE, LLP	13F	Company	0.9%	1,798,740	$4,676,724	—	30 Sep 2023	13F
Avidity Partners Management LP	13F	Company	0.58%	1,159,900	$3,015,740	—	30 Sep 2023	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.53%	1,053,336	$2,739,031	—	30 Sep 2023	13F
ARDSLEY ADVISORY PARTNERS LP	13F	Company	0.5%	992,050	$2,579,330	—	30 Sep 2023	13F
BALYASNY ASSET MANAGEMENT L.P.	13F	Company	0.47%	947,578	$2,463,703	—	30 Sep 2023	13F
TWO SIGMA ADVISERS, LP	13F	Company	0.47%	937,000	$2,436,200	—	30 Sep 2023	13F
STATE STREET CORP	13F	Company	0.44%	870,881	$2,264,291	—	30 Sep 2023	13F
Laurion Capital Management LP	13F	Company	0.4%	809,685	$2,105,181	—	30 Sep 2023	13F
D. E. Shaw & Co., Inc.	13F	Company	0.37%	730,732	$1,899,903	—	30 Sep 2023	13F
TWO SIGMA INVESTMENTS, LP	13F	Company	0.33%	667,420	$1,735,292	—	30 Sep 2023	13F
MORGAN STANLEY	13F	Company	0.24%	484,058	$1,258,550	—	30 Sep 2023	13F
NORTHERN TRUST CORP	13F	Company	0.23%	450,410	$1,171,066	—	30 Sep 2023	13F
GSA CAPITAL PARTNERS LLP	13F	Company	0.22%	445,868	$1,159,000	—	30 Sep 2023	13F
Beirne Wealth Consulting Services, LLC	13F	Company	0.12%	249,420	$880,452	—	30 Sep 2023	13F
PRUDENTIAL FINANCIAL INC	13F	Company	0.17%	333,255	$866,463	—	30 Sep 2023	13F
RENAISSANCE TECHNOLOGIES LLC	13F	Company	0.17%	330,900	$860,000	—	30 Sep 2023	13F
Ensign Peak Advisors, Inc	13F	Company	0.16%	326,777	$849,620	—	30 Sep 2023	13F
NOMURA HOLDINGS INC	13F	Company	0.14%	273,100	$710,060	—	30 Sep 2023	13F
DARK FOREST CAPITAL MANAGEMENT LP	13F	Company	0.12%	230,353	$598,918	—	30 Sep 2023	13F
XTX Topco Ltd	13F	Company	0.1%	204,998	$532,995	—	30 Sep 2023	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	0.09%	189,251	$491,947	—	30 Sep 2023	13F
BARCLAYS PLC	13F	Company	0.09%	180,409	$469,064	—	30 Sep 2023	13F
Bank of New York Mellon Corp	13F	Company	0.09%	178,907	$465,158	—	30 Sep 2023	13F
Qube Research & Technologies Ltd	13F	Company	0.09%	178,697	$464,612	—	30 Sep 2023	13F
GROUP ONE TRADING LLC	13F	Company	0.08%	166,650	$433,290	—	30 Sep 2023	13F
WELLS FARGO & COMPANY/MN	13F	Company	0.07%	141,651	$368,292	—	30 Sep 2023	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.07%	133,395	$346,827	—	30 Sep 2023	13F
BRIDGEWAY CAPITAL MANAGEMENT, LLC	13F	Company	0.07%	131,700	$342,420	—	30 Sep 2023	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.06%	122,483	$318,456	—	30 Sep 2023	13F
DCF Advisers, LLC	13F	Company	0.06%	119,975	$311,935	—	30 Sep 2023	13F
CITADEL ADVISORS LLC	13F	Company	0.06%	119,404	$310,450	—	30 Sep 2023	13F
SUSQUEHANNA INTERNATIONAL GROUP, LLP	13F	Company	0.06%	113,766	$295,792	—	30 Sep 2023	13F
GAGNON SECURITIES LLC	13F	Company	0.06%	111,522	$289,957	—	30 Sep 2023	13F
SILVERCREST ASSET MANAGEMENT GROUP LLC	13F	Company	0.05%	103,500	$269,100	—	30 Sep 2023	13F
ORBIMED ADVISORS LLC	13F	Company	0.05%	100,000	$260,000	—	30 Sep 2023	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.05%	97,233	$252,806	—	30 Sep 2023	13F
PLATINUM INVESTMENT MANAGEMENT LTD	13F	Company	0.05%	95,081	$247,211	—	30 Sep 2023	13F
Graham Capital Management, L.P.	13F	Company	0.05%	94,105	$244,673	—	30 Sep 2023	13F
RHUMBLINE ADVISERS	13F	Company	0.04%	77,363	$201,137	—	30 Sep 2023	13F
William Michael Brown	3/4/5	Chief Financial Officer	— class O/S missing	17,721	$199,361	—	31 Jul 2021	3/4/5
SIMPLEX TRADING, LLC	13F	Company	0.03%	68,998	$179,000	—	30 Sep 2023	13F
FMR LLC	13F	Company	0.03%	67,047	$174,322	—	30 Sep 2023	13F
BANK OF AMERICA CORP /DE/	13F	Company	0.03%	60,499	$157,298	—	30 Sep 2023	13F
JPMORGAN CHASE & CO	13F	Company	0.03%	60,328	$156,853	—	30 Sep 2023	13F
JANE STREET GROUP, LLC	13F	Company	0.03%	58,949	$153,268	—	30 Sep 2023	13F
ALLIANCEBERNSTEIN L.P.	13F	Company	0.02%	47,140	$122,564	—	30 Sep 2023	13F

Institutional Holders of Altimmune, Inc. - Common Stock, par value $0.0001 per share (ALT) as of Q4 2023

As of 31 Dec 2023, Altimmune, Inc. - Common Stock, par value $0.0001 per share (ALT) was held by 142 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 33,518,969 shares. The largest 10 holders included AMERIPRISE FINANCIAL INC, BlackRock Inc., VANGUARD GROUP INC, TANG CAPITAL MANAGEMENT LLC, Nuveen Asset Management, LLC, Point72 Asset Management, L.P., GEODE CAPITAL MANAGEMENT, LLC, MORGAN STANLEY, STATE STREET CORP, and Timelo Investment Management Inc.. This page lists 143 institutional shareholders reporting positions in this security for the Q4 2023 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q4 2023 vs Q3 2023 Across Filers

Q3 2023 holders

110

Q4 2023 holders

142

Holder diff

Investor	Q3 2023 Shares	Q4 2023 Shares	Share Diff	Share Chg %	Q3 2023 Value $	Q4 2023 Value $	Value Diff $	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.