DMAC
DiaMedica Therapeutics Inc
NASDAQ: DMAC · HEALTHCARE · BIOTECHNOLOGY
$6.32
-3.42% today
Updated 2026-06-05
Market cap
$389.04M
P/E ratio
—
P/S ratio
66.68x
EPS (TTM)
$-0.71
Dividend yield
—
52W range
$3 – $10
Volume
0.2M
DiaMedica Therapeutics Inc (DMAC) Insider transactions
Net insider activity
Net buying (16,014,169 shares)
Buy transactions
95
Sell transactions
5
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-01 | SEMBA, CHARLES PAULING | Director | Buy | 40,412 | — | — |
| 2026-06-01 | PAULS, DIETRICH JOHN | Director, President & CEO | Buy | 380,000 | — | — |
| 2026-06-01 | PARSONS, JAMES T. | Director | Buy | 51,189 | — | — |
| 2026-06-01 | O'CONNOR, DANIEL J. | Director | Buy | 40,412 | — | — |
| 2026-06-01 | LEWIS, TANYA | Director | Buy | 40,412 | — | — |
| 2026-06-01 | KUNTZ, RICHARD | Director | Buy | 40,412 | — | — |
| 2026-06-01 | KROP, JULIE | Chief Medical Officer | Buy | 67,500 | — | — |
| 2026-06-01 | KELLEN, SCOTT | CFO & Secretary | Buy | 162,000 | — | — |
| 2026-06-01 | GIUFFRE, RANDALL MICHAEL | Director | Buy | 40,412 | — | — |
| 2026-01-02 | SEMBA, CHARLES PAULING | Director | Buy | 3,355 | $8.42 | $28249.10 |
| 2026-01-02 | PARSONS, JAMES T. | Director | Buy | 10,095 | $8.42 | $84999.90 |
| 2026-01-02 | GIUFFRE, RANDALL MICHAEL | Director | Buy | 6,175 | $8.42 | $51993.50 |
| 2025-11-25 | STAHLBERG, JAN | 10% Owner | Buy | 73,099 | $8.57 | $626816.62 |
| 2025-11-24 | STAHLBERG, JAN | 10% Owner | Buy | 40,253 | $7.89 | $317720.95 |
| 2025-11-21 | STAHLBERG, JAN | 10% Owner | Buy | 208,872 | $7.41 | $1.55M |
| 2025-11-21 | PARSONS, JAMES T. | Director | Sale | 12,000 | — | — |
| 2025-11-21 | PARSONS, JAMES T. | Director | Buy | 12,000 | $2.20 | $26400.00 |
| 2025-11-20 | STAHLBERG, JAN | 10% Owner | Buy | 128,426 | $7.41 | $951212.85 |
| 2025-11-19 | STAHLBERG, JAN | 10% Owner | Buy | 240,352 | $7.21 | $1.73M |
| 2025-11-18 | STAHLBERG, JAN | 10% Owner | Buy | 182,882 | $6.75 | $1.23M |
| 2025-11-17 | STAHLBERG, JAN | 10% Owner | Buy | 187,393 | $6.52 | $1.22M |
| 2025-08-27 | STAHLBERG, JAN | 10% Owner | Buy | 50,772 | $6.00 | $304632.00 |
| 2025-08-26 | STAHLBERG, JAN | 10% Owner | Buy | 59,648 | $6.00 | $357888.00 |
| 2025-08-25 | STAHLBERG, JAN | 10% Owner | Buy | 338,265 | $6.00 | $2.03M |
| 2025-08-22 | STAHLBERG, JAN | 10% Owner | Buy | 59,788 | $5.96 | $356575.63 |
| 2025-08-21 | STAHLBERG, JAN | 10% Owner | Buy | 48,172 | $5.96 | $287028.04 |
| 2025-08-20 | STAHLBERG, JAN | 10% Owner | Buy | 71,107 | $5.86 | $416495.03 |
| 2025-08-15 | STAHLBERG, JAN | 10% Owner | Buy | 8,233 | $6.00 | $49398.00 |
| 2025-08-14 | STAHLBERG, JAN | 10% Owner | Buy | 70,414 | $5.99 | $421920.69 |
| 2025-08-13 | STAHLBERG, JAN | 10% Owner | Buy | 293,601 | $5.91 | $1.73M |
| 2025-08-11 | KROP, JULIE | Chief Marketing Officer | Buy | 450,000 | — | — |
| 2025-07-23 | VON, KOCH THOMAS | 10% Owner | Buy | 2,857,142 | $3.50 | $10.00M |
| 2025-07-23 | STAHLBERG, JAN | 10% Owner | Buy | 1,542,857 | $3.50 | $5.40M |
| 2025-07-23 | JACINTO, RICHARD II | 10% Owner | Buy | 400,000 | $3.50 | $1.40M |
| 2025-06-01 | WAMBEKE, DAVID J. | Chief Business Officer | Buy | 250,000 | — | — |
| 2025-06-01 | SEMBA, CHARLES PAULING | Director | Buy | 32,162 | — | — |
| 2025-06-01 | PAULS, DIETRICH JOHN | Director, President & CEO | Buy | 600,000 | — | — |
| 2025-06-01 | PARSONS, JAMES T. | Director | Buy | 40,739 | — | — |
| 2025-06-01 | LEWIS, TANYA | Director | Buy | 32,162 | — | — |
| 2025-06-01 | KUNTZ, RICHARD | Director | Buy | 32,162 | — | — |
| 2025-06-01 | KELLEN, SCOTT | CFO & Secretary | Buy | 225,000 | — | — |
| 2025-06-01 | GIUFFRE, RANDALL MICHAEL | Director | Buy | 32,162 | — | — |
| 2025-04-07 | PILNIK, RICHARD D. | Director | Buy | 24,000 | $2.11 | $50640.00 |
| 2025-04-07 | PILNIK, RICHARD D. | Director | Sale | 24,000 | — | — |
| 2025-02-20 | O'CONNOR, DANIEL J. | Director | Buy | 64,242 | — | — |
| 2025-02-13 | GIUFFRE, RANDALL MICHAEL | Director | Buy | 12,000 | $2.11 | $25320.00 |
| 2025-02-13 | GIUFFRE, RANDALL MICHAEL | Director | Buy | 5,000 | $3.65 | $18250.00 |
| 2025-02-13 | GIUFFRE, RANDALL MICHAEL | Director | Sale | 12,000 | — | — |
| 2025-02-13 | GIUFFRE, RANDALL MICHAEL | Director | Sale | 5,000 | — | — |
| 2025-01-02 | SEMBA, CHARLES PAULING | Director | Buy | 5,290 | $5.34 | $28248.60 |
| 2025-01-02 | PILNIK, RICHARD D. | Director | Buy | 10,393 | $5.34 | $55498.62 |
| 2025-01-02 | PARSONS, JAMES T. | Director | Buy | 15,917 | $5.34 | $84996.78 |
| 2025-01-02 | PARSONS, JAMES T. | Director | Buy | 4,287 | — | — |
| 2025-01-02 | KUNTZ, RICHARD | Director | Buy | 9,925 | $5.34 | $52999.50 |
| 2025-01-02 | GIUFFRE, RANDALL MICHAEL | Director | Buy | 10,861 | $5.34 | $57997.74 |
| 2024-06-28 | VON, KOCH THOMAS | 10% Owner | Buy | 1,200,000 | $2.50 | $3.00M |
| 2024-06-28 | STAHLBERG, JAN | 10% Owner | Buy | 1,200,000 | $2.50 | $3.00M |
| 2024-06-01 | WAMBEKE, DAVID J. | Chief Business Officer | Buy | 130,000 | — | — |
| 2024-06-01 | SEMBA, CHARLES PAULING | Director | Buy | 28,472 | — | — |
| 2024-06-01 | PILNIK, RICHARD D. | Director | Buy | 36,065 | — | — |
| 2024-06-01 | PAULS, DIETRICH JOHN | Director, President and CEO | Buy | 300,000 | — | — |
| 2024-06-01 | PARSONS, JAMES T. | Director | Buy | 28,472 | — | — |
| 2024-06-01 | LEWIS, TANYA | Director | Buy | 28,472 | — | — |
| 2024-06-01 | KUNTZ, RICHARD | Director | Buy | 28,472 | — | — |
| 2024-06-01 | KELLEN, SCOTT | CFO and Secretary | Buy | 130,000 | — | — |
| 2024-06-01 | GIUFFRE, RANDALL MICHAEL | Director | Buy | 28,472 | — | — |
| 2024-06-01 | CUNDARI, DOMINIC R | Chief Commercial Officer | Buy | 15,000 | — | — |
| 2024-01-22 | LORIANNE, MASUOKA K. | Chief Medical Officer | Buy | 285,000 | — | — |
| 2024-01-02 | SEMBA, CHARLES PAULING | Director | Buy | 9,375 | $2.80 | $26250.00 |
| 2024-01-02 | PILNIK, RICHARD D. | Director | Buy | 30,357 | $2.80 | $84999.60 |
| 2024-01-02 | PARSONS, JAMES T. | Director | Buy | 21,428 | $2.80 | $59998.40 |
| 2024-01-02 | KUNTZ, RICHARD | Director | Buy | 14,285 | $2.80 | $39998.00 |
| 2024-01-02 | GIUFFRE, RANDALL MICHAEL | Director | Buy | 19,196 | $2.80 | $53748.80 |
| 2023-11-16 | WAMBEKE, DAVID J. | Chief Business Officer | Buy | 20,000 | $2.46 | $49200.00 |
| 2023-06-23 | WAMBEKE, DAVID J. | Chief Business Officer | Buy | 38,364 | $3.91 | $150003.24 |
| 2023-06-23 | VON, KOCH THOMAS | 10% Owner | Buy | 1,470,588 | $3.40 | $5.00M |
| 2023-06-23 | SEMBA, CHARLES PAULING | Director | Buy | 12,787 | $3.91 | $49997.17 |
| 2023-06-23 | PILNIK, RICHARD D. | Director | Buy | 38,363 | $3.91 | $149999.33 |
| 2023-06-23 | PAULS, DIETRICH JOHN | Director, President and CEO | Buy | 12,787 | $3.91 | $49997.17 |
| 2023-06-23 | KELLEN, SCOTT | CFO and Secretary | Buy | 10,000 | $3.91 | $39100.00 |
| 2023-06-23 | GIUFFRE, RANDALL MICHAEL | Director | Buy | 65,000 | $3.91 | $254150.00 |
| 2023-06-23 | GIUFFRE, RANDALL MICHAEL | Director | Sale | 15,000 | — | — |
| 2023-06-01 | SEMBA, CHARLES PAULING | Director | Buy | 16,968 | — | — |
| 2023-06-01 | PILNIK, RICHARD D. | Director | Buy | 22,355 | — | — |
| 2023-06-01 | PAULS, DIETRICH JOHN | Director, President and CEO | Buy | 181,000 | — | — |
| 2023-06-01 | PARSONS, JAMES T. | Director | Buy | 16,968 | — | — |
| 2023-06-01 | LEWIS, TANYA | Director | Buy | 7,493 | — | — |
| 2023-06-01 | KELLEN, SCOTT | CFO and Secretary | Buy | 67,000 | — | — |
| 2023-06-01 | GRUIS, KIRSTEN L | Chief Medical Officer | Buy | 67,000 | — | — |
| 2023-06-01 | GIUFFRE, RANDALL MICHAEL | Director | Buy | 16,968 | — | — |
| 2023-06-01 | DAVES, JULIE VANORSDEL | SVP Clinical Development Oper. | Buy | 54,000 | — | — |
| 2023-06-01 | CUNDARI, DOMINIC R | Chief Commercial Officer | Buy | 27,000 | — | — |
| 2023-05-30 | KUNTZ, RICHARD | Director | Buy | 32,320 | — | — |
| 2023-04-10 | WAMBEKE, DAVID J. | Chief Business Officer | Buy | 468,750 | $1.60 | $750000.00 |
| 2023-04-10 | WAMBEKE, DAVID J. | Chief Business Officer | Buy | 140,000 | — | — |
| 2023-03-01 | LEWIS, TANYA | Director | Buy | 26,443 | — | — |
| 2023-01-03 | SEMBA, CHARLES PAULING | Director | Buy | 17,156 | $1.53 | $26248.68 |
| 2023-01-03 | PILNIK, RICHARD D. | Director | Buy | 55,555 | $1.53 | $84999.15 |
| 2023-01-03 | GIUFFRE, RANDALL MICHAEL | Director | Buy | 35,130 | $1.53 | $53748.90 |
| 2023-01-03 | BURROUGHS, AMY L. | Director | Buy | 17,156 | $1.53 | $26248.68 |
Frequently asked questions
Are DMAC insiders buying or selling?
Over the transactions on record, DMAC insiders have been net buyers, with about $0.00 in stock sold across 5 sales, against 51 open-market purchases.
Does insider selling at DMAC mean the stock will fall?
Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.
Which DMAC insiders are selling the most?
Recent selling is concentrated in a few names. PARSONS, JAMES T. accounts for the largest share on record, with about $0.00 sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.