ETONEton Pharmaceuticals, Inc.
- Market cap
- $1.43B
- as of 2026-10-23
- Latest close
- $50.00
- as of 2026-10-23
- Sector
- Healthcare
- as of 2026-10-24
- Industry
- Drug Manufacturers - Specialty & Generic
- as of 2026-10-24
Cluster
No cluster in the last 90 days under the default rule (14d · ≥2 insiders · all roles).
Form 4 historysince 2024-02-15
Dashed line = amended filing (Form 4/A)
| Insider | Traded | Filed | Type | Shares | Price | Value | Owned after | 10b5-1 plan | Filing |
|---|---|---|---|---|---|---|---|---|---|
| Krempa DavidChief Business Officer | Oct 6 | Oct 6 | S | 4,166 | $55.07 | Sale −$229,406 | 43,381 | No | Form 4 |
| Krempa DavidChief Business Officer | Oct 2 | Oct 6 | M | 10,522 | not reported | not reported | 47,547 | No | Form 4 |
| Krempa DavidChief Business Officer | Oct 2 | Oct 6 | M · derivative | 10,522 | $0.00 | $0 | 21,044 | No | Form 4 |
| Maier Paul V | Aug 28 | Aug 314/A | M | 50,000 | $3.78 | $189,000 | 109,745 | No | Form 4/A |
| Maier Paul V | Aug 28 | Aug 314/A | S | 36,387 | $58.64 | Sale −$2,133,734 | 73,358 | No | Form 4/A |
| Maier Paul V | Aug 28 | Aug 314/A | S | 13,485 | $60.21 | Sale −$811,932 | 59,873 | No | Form 4/A |
| Maier Paul V | Aug 28 | Aug 314/A | S | 128 | $61.77 | Sale −$7,907 | 59,745 | No | Form 4/A |
| Maier Paul V | Aug 28 | Aug 314/A | M | 12,500 | $7.31 | $91,375 | 72,245 | No | Form 4/A |
| Maier Paul V | Aug 28 | Aug 314/A | M · derivative | 50,000 | $3.78 | $189,000 | not reported | No | Form 4/A |
| Maier Paul V | Aug 28 | Aug 314/A | M · derivative | 12,500 | $7.31 | $91,375 | not reported | No | Form 4/A |
| Krempa DavidChief Business Officer | Aug 24 | Aug 24 | M | 25,000 | $7.31 | $182,750 | 62,025 | No | Form 4 |
| Krempa DavidChief Business Officer | Aug 24 | Aug 24 | S | 25,000 | $65.07 | Sale −$1,626,750 | 37,025 | No | Form 4 |
| Krempa DavidChief Business Officer | Aug 24 | Aug 24 | M · derivative | 25,000 | $7.31 | $182,750 | 70,000 | No | Form 4 |
| Brynjelsen SeanPresident & CEO | Aug 20 | Aug 20 | S | 47,307 | $60.17 | Sale −$2,846,462 | 1,004,909 | No | Form 4 |
| Brynjelsen SeanPresident & CEO | Aug 20 | Aug 20 | S | 36,373 | $61.11 | Sale −$2,222,754 | 968,536 | No | Form 4 |
| Brynjelsen SeanPresident & CEO | Aug 20 | Aug 20 | S | 7,342 | $62.12 | Sale −$456,085 | 961,194 | No | Form 4 |
| Brynjelsen SeanPresident & CEO | Aug 19 | Aug 20 | S | 8,978 | $62.65 | Sale −$562,472 | 1,052,216 | No | Form 4 |
| Adams Jennifer McKie | Jul 31 | Aug 4 | A · derivative | 10,000 | $0.00 | $0 | 10,000 | No | Form 4 |
| Riedel Norbert G | Jul 31 | Aug 4 | A · derivative | 10,000 | $0.00 | $0 | 10,000 | No | Form 4 |
| Maier Paul V | Jul 31 | Aug 4 | A · derivative | 10,000 | $0.00 | $0 | 10,000 | No | Form 4 |
| Krempa DavidChief Business Officer | Jul 31 | Aug 4 | A · derivative | 128,985 | $0.00 | $0 | 128,985 | No | Form 4 |
| Brynjelsen SeanPresident & CEO | Jul 31 | Aug 4 | A · derivative | 128,985 | $0.00 | $0 | 128,985 | No | Form 4 |
| Erdogan-Trinkaus IpekChief Commercial Officer | Jul 31 | Aug 4 | A · derivative | 80,000 | $0.00 | $0 | 80,000 | No | Form 4 |
| Matthews Judith M.Chief Financial Officer | Jul 31 | Aug 4 | A · derivative | 32,246 | $0.00 | $0 | 32,246 | No | Form 4 |
| Casamento Charles J | Jul 31 | Aug 4 | A · derivative | 10,000 | $0.00 | $0 | 10,000 | No | Form 4 |
| Opaleye Management Inc. | Jul 14 | Jul 174/A | S | 15,000 | $37.54 | Sale −$563,100 | 2,665,000 | No | Form 4/A |
| Opaleye Management Inc. | Jul 14 | Jul 174/A | S | 13,315 | $37.54 | Sale −$499,845 | 40,000 | No | Form 4/A |
| Brynjelsen SeanPresident & CEO | Jul 14 | Jul 14 | M | 200,000 | $1.37 | $274,000 | 1,061,194 | No | Form 4 |
| Brynjelsen SeanPresident & CEO | Jul 14 | Jul 14 | M · derivative | 200,000 | $1.37 | $274,000 | not reported | No | Form 4 |
| Brynjelsen SeanPresident & CEO | Jul 12 | Jul 14 | M | 27,500 | not reported | not reported | 861,194 | No | Form 4 |
| Brynjelsen SeanPresident & CEO | Jul 12 | Jul 14 | M · derivative | 27,500 | $0.00 | $0 | not reported | No | Form 4 |
| Krempa DavidChief Business Officer | Jul 12 | Jul 13 | M | 10,000 | not reported | not reported | 37,025 | No | Form 4 |
| Krempa DavidChief Business Officer | Jul 12 | Jul 13 | M · derivative | 10,000 | $0.00 | $0 | not reported | No | Form 4 |
| Opaleye Management Inc. | Jul 7 | Jul 7 | S | 20,000 | $38.37 | Sale −$767,400 | 2,680,000 | No | Form 4 |
| Opaleye Management Inc. | Jul 7 | Jul 7 | S | 6,685 | $38.37 | Sale −$256,503 | 53,315 | No | Form 4 |
| Opaleye Management Inc. | Jul 6 | Jul 7 | S | 10,000 | $38.00 | Sale −$380,000 | 2,700,000 | No | Form 4 |
| Opaleye Management Inc. | Jul 2 | Jul 7 | S | 65,000 | $37.39 | Sale −$2,430,350 | 2,710,000 | No | Form 4 |
| Opaleye Management Inc. | Jul 2 | Jul 7 | S | 25,000 | $37.39 | Sale −$934,750 | 60,000 | No | Form 4 |
| Krempa DavidChief Business Officer | Jun 26 | Jun 30 | A · derivative | 10,000 | $0.00 | $0 | 96,829 | No | Form 4 |
| Adams Jennifer McKie | Jun 17 | Jun 17 | M | 50,000 | $3.78 | $189,000 | 50,000 | No | Form 4 |
| Adams Jennifer McKie | Jun 17 | Jun 17 | S | 50,000 | $32.48 | Sale −$1,624,000 | not reported | No | Form 4 |
| Adams Jennifer McKie | Jun 17 | Jun 17 | M · derivative | 50,000 | $3.78 | $189,000 | not reported | No | Form 4 |
| Brynjelsen SeanPresident & CEO | May 28 | May 29 | S | 119,852 | $31.88 | Sale −$3,820,882 | 833,842 | No | Form 4 |
| Brynjelsen SeanPresident & CEO | May 28 | May 29 | S | 148 | $32.67 | Sale −$4,835 | 833,694 | No | Form 4 |
| Krempa DavidChief Business Officer | May 27 | May 27 | M | 12,476 | $1.37 | $17,092 | 37,725 | No | Form 4 |
| Krempa DavidChief Business Officer | May 27 | May 27 | M | 7,203 | $3.58 | $25,787 | 44,928 | No | Form 4 |
| Krempa DavidChief Business Officer | May 27 | May 27 | S | 19,679 | $31.47 | Sale −$619,298 | 25,249 | No | Form 4 |
| Krempa DavidChief Business Officer | May 27 | May 27 | M · derivative | 12,476 | $1.37 | $17,092 | not reported | No | Form 4 |
| Krempa DavidChief Business Officer | May 27 | May 27 | M · derivative | 7,203 | $3.58 | $25,787 | 118,406 | No | Form 4 |
| Krempa DavidChief Business Officer | May 26 | May 27 | M | 25,000 | $1.38 | $34,500 | 50,249 | No | Form 4 |
| Krempa DavidChief Business Officer | May 26 | May 27 | M | 12,524 | $1.37 | $17,158 | 62,773 | No | Form 4 |
| Krempa DavidChief Business Officer | May 26 | May 27 | S | 37,524 | $31.49 | Sale −$1,181,631 | 25,249 | No | Form 4 |
| Krempa DavidChief Business Officer | May 26 | May 27 | M · derivative | 25,000 | $1.38 | $34,500 | not reported | No | Form 4 |
| Krempa DavidChief Business Officer | May 26 | May 27 | M · derivative | 12,524 | $1.37 | $17,158 | 12,476 | No | Form 4 |
| Krempa DavidChief Business Officer | May 22 | May 27 | M | 30,591 | $3.58 | $109,516 | 68,046 | No | Form 4 |
| Krempa DavidChief Business Officer | May 22 | May 27 | S | 32,963 | $33.22 | Sale −$1,095,031 | 35,083 | No | Form 4 |
| Krempa DavidChief Business Officer | May 22 | May 27 | S | 9,315 | $33.88 | Sale −$315,592 | 25,768 | No | Form 4 |
| Krempa DavidChief Business Officer | May 22 | May 27 | S | 519 | $35.00 | Sale −$18,165 | 25,249 | No | Form 4 |
| Krempa DavidChief Business Officer | May 22 | May 27 | M · derivative | 30,591 | $3.58 | $109,516 | 125,609 | No | Form 4 |
| Riedel Norbert G | Apr 21 | Apr 22 | M | 12,500 | $7.31 | $91,375 | 47,500 | No | Form 4 |
| Riedel Norbert G | Apr 21 | Apr 22 | M | 19,655 | $8.61 | $169,230 | 67,155 | No | Form 4 |
| Riedel Norbert G | Apr 21 | Apr 22 | M · derivative | 12,500 | $7.31 | $91,375 | not reported | No | Form 4 |
| Riedel Norbert G | Apr 21 | Apr 22 | M · derivative | 19,655 | $8.61 | $169,230 | not reported | No | Form 4 |
| Riedel Norbert G | Feb 3 | Feb 5 | X | 30,000 | $4.42 | $132,600 | 35,000 | No | Form 4 |
| Riedel Norbert G | Feb 3 | Feb 5 | X · derivative | 30,000 | $4.42 | $132,600 | not reported | No | Form 4 |
| Gruber James R.Chief Financial Officer | Jan 14 | Jan 14 | F | 2,293 | $15.47 | $35,473 | 213,420 | No | Form 4 |
| Krempa DavidChief Business Officer | Jan 14 | Jan 14 | F | 1,942 | $15.62 | $30,334 | 630,238 | No | Form 4 |
| Gruber James R.Chief Financial Officer | Jan 12 | Jan 14 | A · derivative | 40,655 | $15.47 | $628,933 | 254,075 | No | Form 4 |
| Gruber James R.Chief Financial Officer | Jan 12 | Jan 14 | A · derivative | 25,856 | $0.00 | $0 | 279,931 | No | Form 4 |
| Krempa DavidChief Business Officer | Jan 12 | Jan 14 | A · derivative | 40,655 | $15.47 | $628,933 | 670,893 | No | Form 4 |
| Krempa DavidChief Business Officer | Jan 12 | Jan 14 | A · derivative | 25,856 | $0.00 | $0 | 696,749 | No | Form 4 |
| Brynjelsen SeanPresident & CEO | Jan 12 | Jan 14 | A · derivative | 158,046 | $15.47 | $2,444,972 | 3,047,312 | No | Form 4 |
| Brynjelsen SeanPresident & CEO | Jan 12 | Jan 14 | A · derivative | 100,517 | $0.00 | $0 | 3,147,829 | No | Form 4 |
| Erdogan-Trinkaus IpekChief Commercial Officer | Jan 12 | Jan 14 | A · derivative | 40,655 | $15.47 | $628,933 | 123,878 | No | Form 4 |
| Erdogan-Trinkaus IpekChief Commercial Officer | Jan 12 | Jan 14 | A · derivative | 25,856 | $0.00 | $0 | 149,734 | No | Form 4 |
| Maier Paul V | Jan 12 | Jan 14 | A · derivative | 12,196 | $15.47 | $188,672 | 286,496 | No | Form 4 |
| Maier Paul V | Jan 12 | Jan 14 | A · derivative | 7,757 | $0.00 | $0 | 294,253 | No | Form 4 |
| Casamento Charles J | Jan 12 | Jan 14 | A · derivative | 12,196 | $15.47 | $188,672 | 295,171 | No | Form 4 |
| Casamento Charles J | Jan 12 | Jan 14 | A · derivative | 7,757 | $0.00 | $0 | 302,928 | No | Form 4 |
| Adams Jennifer McKie | Jan 12 | Jan 14 | A · derivative | 12,196 | $15.47 | $188,672 | 170,329 | No | Form 4 |
| Adams Jennifer McKie | Jan 12 | Jan 14 | A · derivative | 7,757 | $0.00 | $0 | 178,086 | No | Form 4 |
| Riedel Norbert G | Jan 12 | Jan 14 | A · derivative | 12,196 | $15.47 | $188,672 | 286,496 | No | Form 4 |
| Riedel Norbert G | Jan 12 | Jan 14 | A · derivative | 7,757 | $0.00 | $0 | 294,253 | No | Form 4 |
| Brynjelsen SeanPresident & CEO | Jan 1 | Jan 14 | F | 5,015 | $15.39 | $77,181 | 2,889,266 | No | Form 4 |
| Brynjelsen SeanPresident & CEO | Dec 12, 2025 | Dec 12, 2025 | F | 6,732 | $16.83 | $113,300 | 2,894,281 | No | Form 4 |
| Gruber James R.Chief Financial Officer | Dec 12, 2025 | Dec 12, 2025 | F | 4,542 | $16.99 | $77,169 | 215,713 | No | Form 4 |
| Krempa DavidChief Business Officer | Dec 12, 2025 | Dec 12, 2025 | F | 6,264 | $17.00 | $106,488 | 632,180 | No | Form 4 |
| Erdogan-Trinkaus IpekChief Commercial Officer | Dec 12, 2025 | Dec 12, 2025 | F | 85 | $16.90 | $1,437 | 2,403 | No | Form 4 |
| Gruber James R.Chief Financial Officer | Dec 11, 2025 | Dec 12, 2025 | A · derivative | 5,502 | $0.00 | $0 | 210,255 | No | Form 4 |
| Krempa DavidChief Business Officer | Dec 11, 2025 | Dec 12, 2025 | A · derivative | 5,300 | $0.00 | $0 | 638,468 | No | Form 4 |
| Gruber James R.Chief Financial Officer | Aug 20, 2025 | Aug 20, 2025 | S | 2,631 | $16.02 | Sale −$42,149 | 204,753 | No | Form 4 |
| Gruber James R.Chief Financial Officer | Aug 19, 2025 | Aug 20, 2025 | S | 39,082 | $16.16 | Sale −$631,565 | 205,299 | No | Form 4 |
| Krempa DavidChief Business Officer | Jun 16, 2025 | Jun 16, 2025 | S | 10,223 | $14.73 | Sale −$150,585 | 612,646 | No | Form 4 |
| Krempa DavidChief Business Officer | Jun 13, 2025 | Jun 16, 2025 | S | 6,800 | $14.77 | Sale −$100,436 | 622,869 | No | Form 4 |
| Krempa DavidChief Business Officer | Jun 12, 2025 | Jun 16, 2025 | S | 16,977 | $14.92 | Sale −$253,297 | 629,669 | No | Form 4 |
| Opaleye Management Inc. | Jun 10, 2025 | Jun 12, 2025 | P | 5,000 | $15.82 | Purchase +$79,100 | 2,770,000 | No | Form 4 |
| Opaleye Management Inc. | Jun 10, 2025 | Jun 12, 2025 | P | 2,930 | $15.82 | Purchase +$46,353 | 85,000 | No | Form 4 |
| Brynjelsen SeanPresident & CEO | Jun 5, 2025 | Jun 5, 2025 | S | 70,000 | $16.81 | Sale −$1,176,700 | 2,873,513 | No | Form 4 |
| Brynjelsen SeanPresident & CEO | Jun 4, 2025 | Jun 5, 2025 | S | 70,000 | $17.00 | Sale −$1,190,000 | 2,943,513 | No | Form 4 |
| Brynjelsen SeanPresident & CEO | Jun 3, 2025 | Jun 5, 2025 | S | 60,945 | $17.38 | Sale −$1,059,224 | 3,022,568 | No | Form 4 |
| Brynjelsen SeanPresident & CEO | Jun 3, 2025 | Jun 5, 2025 | S | 8,655 | $18.38 | Sale −$159,079 | 3,013,913 | No | Form 4 |
| Brynjelsen SeanPresident & CEO | Jun 3, 2025 | Jun 5, 2025 | S | 400 | $19.02 | Sale −$7,608 | 3,013,513 | No | Form 4 |
| Gruber James R.Chief Financial Officer | Jan 3, 2025 | Jan 6, 2025 | A · derivative | 38,621 | $13.00 | $502,073 | 38,621 | No | Form 4 |
| Gruber James R.Chief Financial Officer | Jan 3, 2025 | Jan 6, 2025 | A · derivative | 25,876 | $0.00 | $0 | 25,876 | No | Form 4 |
| Krempa DavidChief Business Officer | Jan 3, 2025 | Jan 6, 2025 | A · derivative | 38,621 | $13.00 | $502,073 | 38,621 | No | Form 4 |
| Krempa DavidChief Business Officer | Jan 3, 2025 | Jan 6, 2025 | A · derivative | 25,876 | $0.00 | $0 | 25,876 | No | Form 4 |
| Brynjelsen SeanPresident & CEO | Jan 3, 2025 | Jan 6, 2025 | A · derivative | 107,469 | $13.00 | $1,397,097 | 107,469 | No | Form 4 |
| Brynjelsen SeanPresident & CEO | Jan 3, 2025 | Jan 6, 2025 | A · derivative | 72,004 | $0.00 | $0 | 72,004 | No | Form 4 |
| Maier Paul V | Jan 3, 2025 | Jan 6, 2025 | A · derivative | 25,000 | $13.00 | $325,000 | 25,000 | No | Form 4 |
| Riedel Norbert G | Jan 3, 2025 | Jan 6, 2025 | A · derivative | 25,000 | $13.00 | $325,000 | 25,000 | No | Form 4 |
| Casamento Charles J | Jan 3, 2025 | Jan 6, 2025 | A · derivative | 25,000 | $13.00 | $325,000 | 25,000 | No | Form 4 |
| Riedel Norbert G | Jan 3, 2025 | Jan 6, 2025 | M | 27,400 | $3.58 | $98,092 | 87,145 | No | Form 4 |
| Riedel Norbert G | Jan 3, 2025 | Jan 6, 2025 | M | 50,000 | $3.78 | $189,000 | 137,145 | No | Form 4 |
| Riedel Norbert G | Jan 3, 2025 | Jan 6, 2025 | M | 25,000 | $3.47 | $86,750 | 162,145 | No | Form 4 |
| Riedel Norbert G | Jan 3, 2025 | Jan 6, 2025 | M · derivative | 27,400 | $3.58 | $98,092 | not reported | No | Form 4 |
| Riedel Norbert G | Jan 3, 2025 | Jan 6, 2025 | M · derivative | 50,000 | $3.78 | $189,000 | not reported | No | Form 4 |
| Riedel Norbert G | Jan 3, 2025 | Jan 6, 2025 | M · derivative | 25,000 | $3.47 | $86,750 | not reported | No | Form 4 |
| Adams Jennifer McKie | Jan 3, 2025 | Jan 6, 2025 | A · derivative | 25,000 | $13.00 | $325,000 | 25,000 | No | Form 4 |
| Opaleye Management Inc. | Oct 23, 2024 | Oct 25, 2024 | P | 10,000 | $7.98 | Purchase +$79,800 | 2,770,000 | No | Form 4 |
| Opaleye Management Inc. | Oct 8, 2024 | Oct 8, 2024 | P | 30,000 | $7.03 | Purchase +$210,900 | 2,760,000 | No | Form 4 |
| Opaleye Management Inc. | Oct 8, 2024 | Oct 8, 2024 | P | 3,970 | $7.03 | Purchase +$27,909 | 82,070 | No | Form 4 |
| Opaleye Management Inc. | Oct 7, 2024 | Oct 8, 2024 | P | 10,000 | $7.22 | Purchase +$72,200 | 2,730,000 | No | Form 4 |
| Opaleye Management Inc. | Oct 7, 2024 | Oct 8, 2024 | P | 1,248 | $7.22 | Purchase +$9,011 | 78,100 | No | Form 4 |
| Opaleye Management Inc. | Oct 4, 2024 | Oct 8, 2024 | P | 15,000 | $6.77 | Purchase +$101,550 | 2,720,000 | No | Form 4 |
| Opaleye Management Inc. | Oct 4, 2024 | Oct 8, 2024 | P | 1,852 | $6.77 | Purchase +$12,538 | 76,852 | No | Form 4 |
| Krempa DavidChief Business Officer | Oct 2, 2024 | Oct 4, 2024 | A · derivative | 42,088 | $0.00 | $0 | 861,374 | No | Form 4 |
| Opaleye Management Inc. | Sep 11, 2024 | Sep 12, 2024 | P | 45,000 | $4.75 | Purchase +$213,750 | 2,705,000 | No | Form 4 |
| Opaleye Management Inc. | Sep 11, 2024 | Sep 12, 2024 | P | 5,000 | $4.75 | Purchase +$23,750 | 75,000 | No | Form 4 |
| Opaleye Management Inc. | Sep 10, 2024 | Sep 12, 2024 | P | 50,000 | $4.65 | Purchase +$232,500 | 2,660,000 | No | Form 4 |
| Opaleye Management Inc. | Sep 10, 2024 | Sep 12, 2024 | P | 7,500 | $4.65 | Purchase +$34,875 | 70,000 | No | Form 4 |
| Riedel Norbert G | Feb 13, 2024 | Feb 15, 2024 | A · derivative | 30,000 | $4.42 | $132,600 | 164,555 | No | Form 4 |
| Maier Paul V | Feb 13, 2024 | Feb 15, 2024 | A · derivative | 30,000 | $4.42 | $132,600 | 164,555 | No | Form 4 |
| Krempa DavidChief Business Officer | Feb 13, 2024 | Feb 15, 2024 | A · derivative | 144,677 | $4.42 | $639,472 | 813,430 | No | Form 4 |
| Casamento Charles J | Feb 13, 2024 | Feb 15, 2024 | A · derivative | 30,000 | $4.42 | $132,600 | 164,555 | No | Form 4 |
| Brynjelsen SeanPresident & CEO | Feb 13, 2024 | Feb 15, 2024 | A · derivative | 438,633 | $4.42 | $1,938,758 | 2,473,014 | No | Form 4 |
| Adams Jennifer McKie | Feb 13, 2024 | Feb 15, 2024 | A · derivative | 30,000 | $4.42 | $132,600 | 133,133 | No | Form 4 |
| Gruber James R.Chief Financial Officer | Feb 13, 2024 | Feb 15, 2024 | A · derivative | 144,677 | $4.42 | $639,472 | 374,763 | No | Form 4 |