Security key
02155H200
Altimmune, Inc. - Common stock, par value $0.0001 per share (ALT)
CUSIP: 02155H200
Q4 2023 13F Holders as of 31 Dec 2023
- Security type / class
- Equity / Common stock, par value $0.0001 per share
- Total 13F shares
- 33,518,969
- Total 13F value
- $377,122,817
- Share change
- +2,623,657
- Put/Call ratio
- 65%
- SEC-reported price per share
- $11.25
- Number of holders
- 142
- Value change
- +$87,837,677
- Number of buys
- 89
- Number of sells
- 49
- Shares outstanding
- 129,919,091
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2023
Institutions
142
Top holders
10
ALT full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2024
Previous quarter: Q3 2023
Altimmune, Inc. SEC filings
Altimmune, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 02155H200
Recent filing periods:
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
BlackRock Finance, Inc.
Disclosed value leader
BlackRock Finance, Inc.
Comparable rows
15/15
Latest evidence
30 Sep 2023
13F
Lead comparable stake: 2.9%
Showing 1-6 of 15 holder rows.
Quick read
BlackRock Finance, Inc. leads the comparable SEC ownership view at 2.9%.
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 BlackRock Finance, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock Finance, Inc.
2.9%
Nuveen Asset Management, LLC
2.7%
VANGUARD GROUP INC
2.6%
TANG CAPITAL MANAGEMENT LLC
2.1%
MARSHALL WACE, LLP
1.4%
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 |
|---|---|---|---|---|---|
| BlackRock Finance, Inc. |
13F
Company
|
2.9%
|
$9,845,982
3,786,916 shares
|
— | 30 Sep 2023 |
| Nuveen Asset Management, LLC |
13F
Company
|
2.7%
|
$8,961,622
3,446,778 shares
|
— | 30 Sep 2023 |
| VANGUARD GROUP INC |
13F
Company
|
2.6%
|
$8,695,167
3,344,295 shares
|
— | 30 Sep 2023 |
| TANG CAPITAL MANAGEMENT LLC |
13F
Company
|
2.1%
|
$7,150,000
2,750,000 shares
|
— | 30 Sep 2023 |
| MARSHALL WACE, LLP |
13F
Company
|
1.4%
|
$4,676,724
1,798,740 shares
|
— | 30 Sep 2023 |
| Avidity Partners Management LP |
13F
Company
|
0.89%
|
$3,015,740
1,159,900 shares
|
— | 30 Sep 2023 |
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 Q4 2023
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
142
Shares
33,518,969
Rows available
142
| 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 Q4 2023 vs Q3 2023 Across Filers
Q3 2023 holders
110
Q4 2023 holders
142
Holder diff
32
| Investor | Q3 2023 Shares | Q4 2023 Shares | Share Diff | Share Chg % | Q3 2023 value | Q4 2023 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend