Hypertension Diagnostics, Inc.
Hypertension Diagnostics, Inc. (HDII) 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 · HDII · as of Jun 9, 2026
Activity summary
Buy transactions
0
P-Purchase only
Sell transactions
2
12 Months
Buy/Sell ratio
0.00
Buy/Sell (by trades)
Overall sentiment
Hypertension Diagnostics, Inc. insiders have been primarily selling shares over the past 12 Months. Selling activity is often driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment toward the company.
▸ Source: SEC EDGAR · Form 3 & 4 · via Financial Modeling Prep · Buy = P-Purchase only · Sell = S-Sale only
As of Jun 9, 2026
HDII insider buying and selling by quarter
HDII insider selling · HDII 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 9, 2026
Recent insider transactions
HDII executive sell shares · HDII board member insider trading · HDII insider trading SEC filing
Scroll horizontally to see all columns
| Date | Insider | Type | Shares | Value | Filing |
|---|---|---|---|---|---|
| Feb 10, 2012 | BRIMMER KENNETH WILLIAM CEO and CFO · Director | Award | 9,062,907 | — | Form 4 |
| Feb 10, 2012 | BRIMMER KENNETH WILLIAM CEO and CFO · Director | Gift | 500,000 | — | Form 4 |
| Sep 2, 2010 | STERN ALAN Director | Other | 101,772 | $14K | Form 4 |
| Sep 2, 2010 | LEITNER LARRY Director | Other | 101,772 | $14K | Form 4 |
| May 28, 2010 | HOEKSTRA MARTEN 10 percent owner | Sale | 150 | $27 | Form 4 |
| May 13, 2010 | HOEKSTRA MARTEN 10 percent owner | Sale | 7,500 | $1K | Form 4 |
| Mar 3, 2010 | HOEKSTRA MARTEN 10 percent owner | Sale | 4,500 | $855 | Form 4 |
| Oct 7, 2009 | HOEKSTRA MARTEN 10 percent owner | Sale | 5,000 | $550 | Form 4 |
| Oct 9, 2009 | HOEKSTRA MARTEN 10 percent owner | Sale | 80,000 | $9K | Form 4 |
| Nov 20, 2009 | HOEKSTRA MARTEN 10 percent owner | Sale | 9,545 | $1K | Form 4 |
| Nov 27, 2009 | HOEKSTRA MARTEN 10 percent owner | Sale | 5,455 | $600 | Form 4 |
| Dec 28, 2009 | HOEKSTRA MARTEN 10 percent owner | Sale | 900 | $162 | Form 4 |
| Dec 29, 2009 | HOEKSTRA MARTEN 10 percent owner | Sale | 500 | $90 | Form 4 |
| Jan 4, 2010 | HOEKSTRA MARTEN 10 percent owner | Sale | 88,100 | $16K | Form 4 |
| Jan 5, 2010 | HOEKSTRA MARTEN 10 percent owner | Sale | 110,500 | $20K | Form 4 |
| Jan 6, 2010 | HOEKSTRA MARTEN 10 percent owner | Sale | 55,000 | $10K | Form 4 |
| Jan 7, 2010 | HOEKSTRA MARTEN 10 percent owner | Sale | 45,000 | $8K | Form 4 |
| Jan 8, 2010 | HOEKSTRA MARTEN 10 percent owner | Sale | 47,000 | $9K | Form 4 |
| Jan 11, 2010 | HOEKSTRA MARTEN 10 percent owner | Sale | 30,700 | $6K | Form 4 |
| Jan 13, 2010 | HOEKSTRA MARTEN 10 percent owner | Sale | 72,300 | $14K | Form 4 |
| Jan 14, 2010 | HOEKSTRA MARTEN 10 percent owner | Sale | 180,411 | $36K | Form 4 |
| Jan 19, 2010 | HOEKSTRA MARTEN 10 percent owner | Sale | 153,000 | $32K | Form 4 |
| Jan 20, 2010 | HOEKSTRA MARTEN 10 percent owner | Sale | 72,000 | $15K | Form 4 |
| Jan 21, 2010 | HOEKSTRA MARTEN 10 percent owner | Sale | 10,000 | $2K | Form 4 |
| Jan 22, 2010 | HOEKSTRA MARTEN 10 percent owner | Sale | 5,000 | $1K | Form 4 |
BRIMMER KENNETH WILLIAM
CEO and CFO · Director
Date
Feb 10
Shares
9,062,907
Price
—
Value
—
BRIMMER KENNETH WILLIAM
CEO and CFO · Director
Date
Feb 10
Shares
500,000
Price
—
Value
—
⚡ = value ≥ $1M · Award/Option price shows — · formType=4 · securityName=Common Stock · url → sec.gov/Archives/edgar
▸ Source: SEC EDGAR · Form 4 filings · ⚡ = value ≥ $1M · Award/Option price shows —
About HDII insider trading
HDII insider trades
Hypertension Diagnostics, Inc. (HDII) insider trading data is sourced from SEC Form 4 filings submitted by corporate insiders, including HDII. Over the past 12 months, 0 insiders have filed transactions with the SEC. HDII insiders have been primarily selling, which may reflect pre-scheduled Rule 10b5-1 plan executions.
For Hypertension Diagnostics, Inc.'s institutional ownership breakdown and insider ownership percentage, see the Ownership tab → Ownership tab →
Frequently asked questions
HDII insider trading · 5 questionsThe insiders of Hypertension Diagnostics, Inc. (HDII) include executives and directors such as HDII, 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 9, 2026