DiaMedica Therapeutics Inc. (DMAC) Insider Ownership

Historic Insider Ownership Trends

DMAC's three largest insider shareholders as of April 28, 2026 are Jan Stahlberg (TenPercentOwner, 8.83Mn shares), Koch Thomas Von (TenPercentOwner, 8.38Mn shares), Jan Stahlberg (TenPercentOwner, 6.76Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Jan Stahlberg - 0 8,825,742 08 Dec, 2025
Koch Thomas Von - 0 8,383,577 25 Jul, 2025
Jan Stahlberg - 0 6,764,465 25 Jul, 2025
Koch Thomas Von - 0 2,855,847 06 Dec, 2022
Koch Thomas Von - 0 2,855,827 21 Jul, 2022
David J. Wambeke Chief Business Officer 527,114 0 16 Nov, 2023
Randall Michael Giuffre - 398,587 0 06 Jan, 2026
Randall Michael Giuffre - 392,412 0 18 Feb, 2025
Richard D. Pilnik - 312,995 0 08 Apr, 2025
Amy L. Burroughs - 73,288 0 03 Jan, 2023
Dietrich John Pauls President And Ceo 68,591 0 26 Jun, 2023
Charles Pauling Semba - 47,963 0 06 Jan, 2026
Charles Pauling Semba - 44,608 0 03 Jan, 2025
Harry W Jr Alcorn Svp, Clinical Operations 43,582 0 15 Sep, 2021
Richard Kuntz - 24,210 0 03 Jan, 2025
Harry W Jr Alcorn Senior Vp, Clinical Operations 0 399 16 Aug, 2021

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
02 Jan, 2026 Randall Michael Giuffre Common Stock A 6,175 $8.42 398,587 D A
02 Jan, 2026 Charles Pauling Semba Common Stock A 3,355 $8.42 47,963 D A
17 Nov, 2025 Jan Stahlberg Common Shares A 187,393 $6.52 7,951,858 I P
18 Nov, 2025 Jan Stahlberg Common Shares A 182,882 $6.75 8,134,740 I P
19 Nov, 2025 Jan Stahlberg Common Shares A 240,352 $7.21 8,375,092 I P
20 Nov, 2025 Jan Stahlberg Common Shares A 128,426 $7.41 8,503,518 I P
21 Nov, 2025 Jan Stahlberg Common Shares A 208,872 $7.41 8,712,390 I P
24 Nov, 2025 Jan Stahlberg Common Shares A 40,253 $7.89 8,752,643 I P
25 Nov, 2025 Jan Stahlberg Common Shares A 73,099 $8.57 8,825,742 I P
13 Aug, 2025 Jan Stahlberg Common Shares A 293,601 $5.91 7,058,066 I P
14 Aug, 2025 Jan Stahlberg Common Shares A 70,414 $5.99 7,128,480 I P
15 Aug, 2025 Jan Stahlberg Common Shares A 8,233 $6.00 7,136,713 I P
20 Aug, 2025 Jan Stahlberg Common Shares A 71,107 $5.86 7,207,820 I P
21 Aug, 2025 Jan Stahlberg Common Shares A 48,172 $5.96 7,255,992 I P
22 Aug, 2025 Jan Stahlberg Common Shares A 59,788 $5.96 7,315,780 I P
25 Aug, 2025 Jan Stahlberg Common Shares A 338,265 $6.00 7,654,045 I P
26 Aug, 2025 Jan Stahlberg Common Shares A 59,648 $6.00 7,713,693 I P
27 Aug, 2025 Jan Stahlberg Common Shares A 50,772 $6.00 7,764,465 I P
23 Jul, 2025 Koch Thomas Von Common Shares A 2,857,142 $3.50 8,383,577 I P
23 Jul, 2025 Jan Stahlberg Common Shares A 1,542,857 $3.50 6,764,465 I P