Aridis Pharmaceuticals, Inc.
Aridis Pharmaceuticals, Inc. (ARDS) Insider Trading
Form 4 buy vs sell counts, ratio, and sentiment — switch this quarter or last 12 months; chart and transactions below.
SEC EDGAR · FMP · ARDS · as of Jun 8, 2026
Activity summary
Buy transactions
2
P-Purchase only
Sell transactions
0
12 Months
Buy/Sell ratio
∞
Buy/Sell (by trades)
Overall sentiment
Aridis Pharmaceuticals, Inc. insiders have been net buyers of shares over the past 12 Months, which may signal confidence in the company's outlook.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 8, 2026
ARDS insider buying and selling by quarter
ARDS insider selling · ARDS insider buying stocks · quarterly insider activity
Mobile shows last 4Q · Desktop shows full 8Q
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · last 8 quarters
As of Jun 8, 2026
Recent insider transactions
ARDS executive sell shares · ARDS board member insider trading · ARDS insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| Jun 5, 2023 | Patzer Eric Executive Chairman · Director | Option | 12,000 | — | Form 4 |
| Jun 5, 2023 | HAMILTON JOHN F Director | Option | 5,000 | — | Form 4 |
| Jun 5, 2023 | Truong Vu CEO and Director | Option | 15,000 | — | Form 4 |
| Jun 5, 2023 | Windham-Bannister Susan Richards Director | Option | 5,000 | — | Form 4 |
| Jun 5, 2023 | Jafri Hasan Chief Medical Officer | Option | 10,000 | — | Form 4 |
| Jun 5, 2023 | KURLAND FRED CFO | Option | 4,000 | — | Form 4 |
| Sep 7, 2021 | Jafri Hasan Chief Medical Officer | Purchase | 100 | $397 | Form 4 |
| Sep 7, 2021 | Jafri Hasan Chief Medical Officer | Purchase | 1,991 | $8K | Form 4 |
| Sep 3, 2021 | Jafri Hasan Chief Medical Officer | Purchase | 3,009 | $12K | Form 4 |
| Jul 27, 2021 | HAMILTON JOHN F Director | Purchase | 2,000 | $10K | Form 4 |
| Jul 27, 2021 | Truong Vu CEO · Director | Purchase | 5,000 | $26K | Form 4 |
| Jul 27, 2021 | Patzer Eric Director | Purchase | 5,175 | $25K | Form 4 |
| Dec 22, 2020 | Patzer Eric Chairman · Director | Gift | 16,000 | — | Form 4 |
Patzer Eric
Executive Chairman · Director
Date
Jun 5
Shares
12,000
Price
—
Value
—
Windham-Bannister Susan Richards
Director
Date
Jun 5
Shares
5,000
Price
—
Value
—
Jafri Hasan
Chief Medical Officer
Date
Sep 7
Shares
1,991
Price
$4.15
Value
$8K
Jafri Hasan
Chief Medical Officer
Date
Sep 3
Shares
3,009
Price
$4.15
Value
$12K
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About ARDS insider trading
ARDS insider trades
Aridis Pharmaceuticals, Inc. (ARDS) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including ARDS. Over the past 12 months, 0 insiders have filed transactions with the SEC. ARDS insiders have been primarily buying, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For Aridis Pharmaceuticals, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
ARDS insider trading · 5 questionsThe insiders of Aridis Pharmaceuticals, Inc. (ARDS) include executives and directors such as ARDS, among others. Over the past 12 months, 0 insiders have filed Form 4 transactions with the SEC. Insider transactions are required to be reported within 2 business days of the trade date.
▸ Source: FMP /stable/insider-trading/search · SEC EDGAR Form 3 & 4 · acquisitionOrDisposition A=Buy, D=Sell · RSU vesting (M-Exempt) excluded from sentiment bar · As of Jun 8, 2026