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 Q1 2019?

13 institutional investors reported ALT - Altimmune, Inc. - Common stock, par value $0.0001 per share for Q1 2019. Use the holders table for investor-level position and value details.

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

CUSIP: 02155H200

Q1 2019 13F Holders as of 31 Mar 2019

Security type / class: Equity / Common stock, par value $0.0001 per share
Total 13F shares: 1,114,198
Total 13F value: $3,229,903
Share change: +307,396
Put/Call ratio: 103%
SEC-reported price per share: $2.90
Number of holders: 13
Value change: +$1,231,709
Number of buys: 9
Number of sells: 9
Shares outstanding: 129,919,091

Security key

02155H200

Report period

Q1 2019

Institutions

Top holders

ALT full security history Ownership snapshot Full 13F holder table Altimmune, Inc. SEC filings Altimmune, Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Ownership snapshot

Top reported holders 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. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

SABBY MANAGEMENT, LLC

Disclosed value leader

SABBY MANAGEMENT, LLC

Comparable rows

15/15

Latest evidence

31 Dec 2018

13F Lead comparable stake: 0.18% Showing 1-6 of 15 holder rows.

Quick read

SABBY MANAGEMENT, LLC leads the comparable SEC ownership view at 0.18%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens SABBY MANAGEMENT, LLC's linked filing trail.

Comparable ownership Top 5

SABBY MANAGEMENT, LLC 0.18%

RENAISSANCE TECHNOLOGIES LLC 0.15%

VANGUARD GROUP INC 0.08%

OXFORD ASSET MANAGEMENT LLP 0.07%

DIMENSIONAL FUND ADVISORS LP 0.05%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
SABBY MANAGEMENT, LLC	13F Company 13F	0.18%	$490,000 237,921 shares	—	31 Dec 2018
RENAISSANCE TECHNOLOGIES LLC	13F Company 13F	0.15%	$401,000 194,506 shares	—	31 Dec 2018
VANGUARD GROUP INC	13F Company 13F	0.08%	$227,000 110,369 shares	—	31 Dec 2018
OXFORD ASSET MANAGEMENT LLP	13F Company 13F	0.07%	$175,000 84,870 shares	—	31 Dec 2018
DIMENSIONAL FUND ADVISORS LP	13F Company 13F	0.05%	$128,000 61,906 shares	—	31 Dec 2018
BANK OF MONTREAL /CAN/	13F Company 13F	0.03%	$82,000 40,000 shares	—	31 Dec 2018

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2019

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

1,114,198

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2019 vs Q1 2019 Across Filers

Q1 2019 holders

Holder diff

Investor	Q1 2019 Shares	Q1 2019 Shares	Share Diff	Share Chg %	Q1 2019 value	Q1 2019 value	Value change	Value Chg %