Security key
040334104
Aridis Pharmaceuticals, Inc. - Common Stock (ARDS)
CUSIP: 040334104
Q4 2021 13F Holders as of 31 Dec 2021
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 1,269,305
- Total 13F value
- $2,956,583
- Share change
- -722,789
- SEC-reported price per share
- $2.33
- Number of holders
- 18
- Value change
- -$3,467,952
- Number of buys
- 11
- Number of sells
- 7
- Shares outstanding
- 44,586,623
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2021
Institutions
18
Top holders
10
ARDS full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2025
Aridis Pharmaceuticals, Inc. SEC filings
Aridis Pharmaceuticals, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 040334104
Recent filing periods:
Ownership snapshot
Top reported holders of ARDS - Aridis Pharmaceuticals, Inc. - Common Stock (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
ARMISTICE CAPITAL, LLC
Disclosed value leader
ARMISTICE CAPITAL, LLC
Comparable rows
0/15
Latest evidence
30 Sep 2021
13F
Highest disclosed value: $3,932,000
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
ARMISTICE CAPITAL, LLC has the largest disclosed position value at $3.93M.
0 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 ARMISTICE CAPITAL, LLC's linked filing trail.
Disclosed position value
Top 5
ARMISTICE CAPITAL, LLC
$3.93M
Roumell Asset Management, LLC
$1.28M
VANGUARD GROUP INC
$624K
AIGH Capital Management LLC
$554K
MILLENNIUM MANAGEMENT LLC
$274K
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| ARMISTICE CAPITAL, LLC |
13F
Company
|
—
denominator unverified
|
$3,932,000
1,068,444 shares
|
— | 30 Sep 2021 |
| Roumell Asset Management, LLC |
13F
Company
|
—
denominator unverified
|
$1,279,000
347,517 shares
|
— | 30 Sep 2021 |
| VANGUARD GROUP INC |
13F
Company
|
—
denominator unverified
|
$624,000
169,537 shares
|
— | 30 Sep 2021 |
| AIGH Capital Management LLC |
13F
Company
|
—
denominator unverified
|
$554,000
150,591 shares
|
— | 30 Sep 2021 |
| MILLENNIUM MANAGEMENT LLC |
13F
Company
|
—
denominator unverified
|
$274,000
74,559 shares
|
— | 30 Sep 2021 |
| BlackRock Finance, Inc. |
13F
Company
|
—
denominator unverified
|
$156,000
42,227 shares
|
— | 30 Sep 2021 |
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 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
18
Shares
1,269,305
Rows available
18
| 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 2021 vs Q1 2026 Across Filers
Q1 2026 holders
1
Q4 2021 holders
18
Holder diff
17
| Investor | Q1 2026 Shares | Q4 2021 Shares | Share Diff | Share Chg % | Q1 2026 value | Q4 2021 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend