DFTX
Definium Therapeutics, Inc.
NASDAQ · Healthcare · Medical - Pharmaceuticals · US
$35.28
+7.00%0
Insider buys (3m)
6
Insider sells (3m)
-$3.0M
Net value (3m)
-23.0%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Sep 29, 2026 | Wiley Matthew T. · officer: Chief Commercial Officer | Sale | 3,097 | $37 |
| Sep 29, 2026 | Roberts Brandi · officer: Chief Financial Officer | Sale | 3,377 | $37 |
| Sep 29, 2026 | Sullivan Mark · officer: Chief Legal Officer | Sale | 14,051 | $37 |
| Sep 29, 2026 | Barrow Robert · director, officer: Chief Executive Officer | Sale | 31,550 | $37 |
| Sep 29, 2026 | Karlin Daniel · director, officer: Chief Medical Officer | Sale | 10,853 | $37 |
| Sep 18, 2026 | Vallone Carol A · director | M-Exempt | 1,086 | $36 |
| Sep 18, 2026 | Krebs Andreas · director | M-Exempt | 1,629 | $36 |
| Sep 14, 2026 | Wiley Matthew T. · officer: Chief Commercial Officer | A-Award | 125,000 | $0.00 |
| Sep 14, 2026 | Barrow Robert · director, officer: Chief Executive Officer | A-Award | 750,000 | $0.00 |
| Sep 14, 2026 | Roberts Brandi · officer: Chief Financial Officer | A-Award | 125,000 | $0.00 |
| Sep 14, 2026 | Sullivan Mark · officer: Chief Legal Officer | A-Award | 125,000 | $0.00 |
| Sep 14, 2026 | Karlin Daniel · officer: Chief Medical Officer | A-Award | 200,000 | $0.00 |
| Sep 4, 2026 | Barrow Robert · director, officer: Chief Executive Officer | Sale | 19,023 | $38 |
| Sep 4, 2026 | Barrow Robert · director, officer: Chief Executive Officer | A-Award | 40,000 | $0.00 |
| Aug 12, 2026 | Karlin Daniel · officer: Chief Medical Officer | A-Award | 100,000 | $0.00 |
| Aug 12, 2026 | Roberts Brandi · officer: Chief Financial Officer | A-Award | 62,500 | $0.00 |
| Aug 12, 2026 | Wiley Matthew T. · officer: Chief Commercial Officer | A-Award | 62,500 | $0.00 |
| Aug 12, 2026 | Sullivan Mark · officer: Chief Legal Officer | A-Award | 62,500 | $0.00 |
| Aug 12, 2026 | Barrow Robert · director, officer: Chief Executive Officer | A-Award | 375,000 | $0.00 |
| Jun 26, 2026 | Barrow Robert · director, officer: Chief Executive Officer | Sale | 29,208 | $45 |
| Jun 26, 2026 | Sullivan Mark · officer: Chief Legal Officer | Sale | 13,008 | $45 |
| Jun 26, 2026 | Roberts Brandi · officer: Chief Financial Officer | Sale | 3,013 | $45 |
| Jun 26, 2026 | Karlin Daniel · officer: Chief Medical Officer | Sale | 10,035 | $45 |
| Jun 26, 2026 | Wiley Matthew T. · officer: Chief Commercial Officer | Sale | 2,867 | $45 |
| Jun 22, 2026 | Sullivan Mark · officer: Chief Legal Officer | A-Award | 62,500 | $0.00 |
| Jun 22, 2026 | Roberts Brandi · officer: Chief Financial Officer | A-Award | 62,500 | $0.00 |
| Jun 22, 2026 | Barrow Robert · director, officer: Chief Executive Officer | A-Award | 375,000 | $0.00 |
| Jun 22, 2026 | Wiley Matthew T. · officer: Chief Commercial Officer | A-Award | 62,500 | $0.00 |
| Jun 22, 2026 | Karlin Daniel · officer: Chief Medical Officer | A-Award | 100,000 | $0.00 |
| Jun 15, 2026 | Krebs Andreas · director | A-Award | 19,188 | $24 |
Institutional positioning
13F filings over the trailing two quarters
New 391Increased 130Reduced 69Sold out 33
| Filer | Action | Shares | Filed |
|---|---|---|---|
| BlackRock, Inc. | Increased | 11,232,834 | Aug 7, 2026 |
| BLACKROCK, INC. | New Position | 8,480,230 | May 13, 2026 |
| Avoro Capital Advisors LLC | Increased | 7,188,888 | Aug 14, 2026 |
| DRIEHAUS CAPITAL MANAGEMENT LLC | Increased | 6,845,276 | Aug 14, 2026 |
| DRIEHAUS CAPITAL MANAGEMENT LLC | Reduced | 5,911,889 | May 15, 2026 |
| Jupiter Topco LLC | New Position | 5,615,645 | Aug 14, 2026 |
| Capital World Investors | New Position | 5,367,723 | Aug 12, 2026 |
| AVORO CAPITAL ADVISORS LLC | New Position | 5,000,000 | May 15, 2026 |
| FMR LLC | Increased | 4,752,921 | Aug 13, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 4,652,032 | Aug 14, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 3,644,813 | Aug 12, 2026 |
| JANUS HENDERSON GROUP PLC | New Position | 3,556,041 | May 18, 2026 |
| STATE STREET CORP | Increased | 3,065,390 | Sep 22, 2026 |
| DEEP TRACK CAPITAL, LP | New Position | 3,000,000 | May 15, 2026 |
| Capital International Investors | New Position | 2,963,410 | Aug 12, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Sep 29, 2026