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 2021?

98 institutional investors reported ALT - Altimmune, Inc. - Common stock, par value $0.0001 per share for Q4 2021. 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 2021 13F Holders as of 31 Dec 2021

Type / Class: Equity / Common stock, par value $0.0001 per share
Shares outstanding: 129,919,091
Total 13F shares: 32,470,413
Share change: -1,053,746
Total reported value: $295,787,573
Put/Call ratio: 60%
Price per share: $9.16
Number of holders: 98
Value change: -$27,220,088
Number of buys: 52
Number of sells: 59

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 2022
Previous quarter: Q3 2021

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
VR Adviser, LLC	13F	Company	2.9%	3,800,000	$42,978,000	—	30 Sep 2021	13F
STATE STREET CORP	13F	Company	2.7%	3,524,018	$39,857,000	—	30 Sep 2021	13F
BlackRock Finance, Inc.	13F	Company	2.3%	2,941,790	$33,272,000	—	30 Sep 2021	13F
Avidity Partners Management LP	13F	Company	1.7%	2,167,900	$24,519,000	—	30 Sep 2021	13F
VANGUARD GROUP INC	13F	Company	1.3%	1,636,357	$18,507,000	—	30 Sep 2021	13F
TANG CAPITAL MANAGEMENT LLC	13F	Company	1.2%	1,600,000	$18,096,000	—	30 Sep 2021	13F
CREDIT SUISSE AG/	13F	Company	1.1%	1,410,397	$15,952,000	—	30 Sep 2021	13F
CITADEL ADVISORS LLC	13F	Company	0.84%	1,089,852	$12,326,000	—	30 Sep 2021	13F
SPHERA FUNDS MANAGEMENT LTD.	13F	Company	0.84%	1,088,854	$12,315,000	—	30 Sep 2021	13F
Nuveen Asset Management, LLC	13F	Company	0.62%	805,820	$12,281,000	—	30 Sep 2021	13F
BAKER BROS. ADVISORS LP	13F	Company	0.83%	1,072,038	$12,125,000	—	30 Sep 2021	13F
ARDSLEY ADVISORY PARTNERS LP	13F	Company	0.79%	1,027,500	$11,714,000	—	30 Sep 2021	13F
D. E. Shaw & Co., Inc.	13F	Company	0.74%	955,438	$10,806,000	—	30 Sep 2021	13F
Marshall Wace North America L.P.	13F	Company	0.61%	791,606	$8,954,000	—	30 Sep 2021	13F
MORGAN STANLEY	13F	Company	0.56%	721,804	$8,163,000	—	30 Sep 2021	13F
BRAUN STACEY ASSOCIATES INC	13F	Company	0.55%	711,818	$8,050,000	—	30 Sep 2021	13F
Logos Global Management LP	13F	Company	0.54%	700,000	$7,917,000	—	30 Sep 2021	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.51%	658,852	$7,451,000	—	30 Sep 2021	13F
MARSHALL WACE, LLP	13F	Company	0.37%	478,923	$5,416,000	—	30 Sep 2021	13F
GOLDMAN SACHS GROUP INC	13F	Company	0.37%	476,805	$5,393,000	—	30 Sep 2021	13F
NORTHERN TRUST CORP	13F	Company	0.3%	387,290	$4,381,000	—	30 Sep 2021	13F
Woodline Partners LP	13F	Company	0.27%	348,823	$3,945,000	—	30 Sep 2021	13F
CANADA PENSION PLAN INVESTMENT BOARD	13F	Company	0.23%	300,000	$3,393,000	—	30 Sep 2021	13F
BARCLAYS PLC	13F	Company	0.22%	283,019	$3,201,000	—	30 Sep 2021	13F
ALLIANCEBERNSTEIN L.P.	13F	Company	0.19%	252,810	$2,859,000	—	30 Sep 2021	13F
DCF Advisers, LLC	13F	Company	0.18%	239,200	$2,705,000	—	30 Sep 2021	13F
Parkman Healthcare Partners LLC	13F	Company	0.13%	175,000	$1,979,000	—	30 Sep 2021	13F
Rafferty Asset Management, LLC	13F	Company	0.13%	164,078	$1,856,000	—	30 Sep 2021	13F
Bank of New York Mellon Corp	13F	Company	0.12%	161,142	$1,822,000	—	30 Sep 2021	13F
ACUTA CAPITAL PARTNERS, LLC	13F	Company	0.12%	150,000	$1,697,000	—	30 Sep 2021	13F
MILLENNIUM MANAGEMENT LLC	13F	Company	0.11%	138,254	$1,564,000	—	30 Sep 2021	13F
Knoll Capital Management, LLC	13F	Company	0.1%	132,978	$1,504,000	—	30 Sep 2021	13F
Beirne Wealth Consulting Services, LLC	13F	Company	0.1%	131,940	$1,494,000	—	30 Sep 2021	13F
PRINCIPAL FINANCIAL GROUP INC	13F	Company	0.09%	113,509	$1,284,000	—	30 Sep 2021	13F
CITIGROUP INC	13F	Company	0.08%	109,065	$1,234,000	—	30 Sep 2021	13F
HAP Trading, LLC	13F	Company	0.08%	104,491	$1,182,000	—	30 Sep 2021	13F
UBS Group AG	13F	Company	0.08%	101,742	$1,151,000	—	30 Sep 2021	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.08%	98,255	$1,112,000	—	30 Sep 2021	13F
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM	13F	Company	0.07%	85,759	$970,000	—	30 Sep 2021	13F
SUSQUEHANNA INTERNATIONAL GROUP, LLP	13F	Company	0.07%	85,477	$967,000	—	30 Sep 2021	13F
VOYA INVESTMENT MANAGEMENT LLC	13F	Company	0.06%	81,353	$920,000	—	30 Sep 2021	13F
ExodusPoint Capital Management, LP	13F	Company	0.06%	74,358	$841,000	—	30 Sep 2021	13F
GROUP ONE TRADING LLC	13F	Company	0.05%	69,605	$787,000	—	30 Sep 2021	13F
NORGES BANK	13F	Company	0.05%	67,600	$765,000	—	30 Sep 2021	13F
Schonfeld Strategic Advisors LLC	13F	Company	0.05%	66,600	$754,000	—	30 Sep 2021	13F
Squarepoint Ops LLC	13F	Company	0.05%	60,608	$685,000	—	30 Sep 2021	13F
PointState Capital LP	13F	Company	0.05%	60,000	$679,000	—	30 Sep 2021	13F
ETF MANAGERS GROUP, LLC	13F	Company	0.04%	52,012	$664,000	—	30 Sep 2021	13F
Parallax Volatility Advisers, L.P.	13F	Company	0.04%	57,130	$646,000	—	30 Sep 2021	13F
Deutsche Girozentrale DekaBank	13F	Individual	0.04%	50,000	$626,000	—	30 Sep 2021	13F

Institutional Holders of Altimmune, Inc. - Common stock, par value $0.0001 per share (ALT) as of Q4 2021

As of 31 Dec 2021, Altimmune, Inc. - Common stock, par value $0.0001 per share (ALT) was held by 98 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 32,470,413 shares. The largest 10 holders included STATE STREET CORP, BlackRock Inc., Avidity Partners Management LP, Nuveen Asset Management, LLC, VANGUARD GROUP INC, TANG CAPITAL MANAGEMENT LLC, SPHERA FUNDS MANAGEMENT LTD., D. E. Shaw & Co., Inc., MORGAN STANLEY, and BARCLAYS PLC. This page lists 98 institutional shareholders reporting positions in this security for the Q4 2021 filing period.

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

Compare Q4 2021 vs Q3 2021 Across Filers

Q3 2021 holders

113

Q4 2021 holders

Holder diff

-15

Investor	Q3 2021 Shares	Q4 2021 Shares	Share Diff	Share Chg %	Q3 2021 Value $	Q4 2021 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.