OMER

Omeros Corp

Insider trading activity for Omeros Corp, straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

-$2.2M

net selling

Bought(0 · 0 insiders): $0
Sold(11 · 4 insiders): $2.2M

Past 6 months

-$2.3M

net selling

Bought(0 · 0 insiders): $0
Sold(12 · 4 insiders): $2.3M

Past 12 months

-$3M

net selling

Bought(0 · 0 insiders): $0
Sold(14 · 4 insiders): $3M

Transaction history

The 73 most recent Form 4 transactions.

Open in screener →

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Sep 23	Borges David J.	VP, Finance & CAO	MEXER◷◆	10,000	—	—	—	Open the original filing on SEC.gov
Sep 23	Borges David J.	VP, Finance & CAO	SSELL◷	10,000	$20.95	$209.5K	-100.0%	Open the original filing on SEC.gov
Sep 23	Borges David J.	VP, Finance & CAO	MEXER◷	10,000	$15.58	$155.8K	—	Open the original filing on SEC.gov
Sep 22	Borges David J.	VP, Finance & CAO	MEXER◷◆	5,000	—	—	—	Open the original filing on SEC.gov
Sep 22	Borges David J.	VP, Finance & CAO	MEXER◷◆	5,000	—	—	—	Open the original filing on SEC.gov
Sep 22	Borges David J.	VP, Finance & CAO	SSELL◷	10,000	$20.95	$209.5K	-100.0%	Open the original filing on SEC.gov
Sep 22	Borges David J.	VP, Finance & CAO	MEXER◷	5,000	$2.94	$14.7K	+100.0%	Open the original filing on SEC.gov
Sep 22	Borges David J.	VP, Finance & CAO	MEXER◷	5,000	$3.93	$19.7K	—	Open the original filing on SEC.gov
Aug 31	Cancelmo Peter B	VP, General Counsel	MEXER◆	25,000	—	—	—	Open the original filing on SEC.gov
Aug 31	Cancelmo Peter B	VP, General Counsel	SSELL	25,000	$18.54	$463.5K	-99.2%	Open the original filing on SEC.gov
Aug 31	Cancelmo Peter B	VP, General Counsel	MEXER	25,000	$2.94	$73.5K	+12,500%	Open the original filing on SEC.gov
Aug 28	Cancelmo Peter B	VP, General Counsel	MEXER◆	25,000	—	—	—	Open the original filing on SEC.gov
Aug 28	Cancelmo Peter B	VP, General Counsel	SSELL	25,000	$18.65	$466.1K	-99.2%	Open the original filing on SEC.gov
Aug 28	Cancelmo Peter B	VP, General Counsel	MEXER	25,000	$2.94	$73.5K	+12,500%	Open the original filing on SEC.gov
Aug 27	Hanish Arnold C	Director	MEXER◆	7,500	—	—	—	Open the original filing on SEC.gov
Aug 27	Hanish Arnold C	Director	MEXER◆	2,500	—	—	—	Open the original filing on SEC.gov
Aug 27	Hanish Arnold C	Director	SSELL	5,000	$19.02	$95.1K	-100.0%	Open the original filing on SEC.gov
Aug 27	Hanish Arnold C	Director	SSELL	5,000	$18.88	$94.4K	-50.0%	Open the original filing on SEC.gov
Aug 27	Hanish Arnold C	Director	MEXER	7,500	$14.66	$110K	+300.0%	Open the original filing on SEC.gov
Aug 27	Hanish Arnold C	Director	MEXER	2,500	$15.81	$39.5K	—	Open the original filing on SEC.gov
Aug 26	Hanish Arnold C	Director	MEXER◆	5,000	—	—	—	Open the original filing on SEC.gov
Aug 26	Hanish Arnold C	Director	SSELL	5,000	$18.53	$92.6K	-100.0%	Open the original filing on SEC.gov
Aug 26	Hanish Arnold C	Director	MEXER	5,000	$15.81	$79.1K	—	Open the original filing on SEC.gov
Aug 24	Borges David J.	VP, Finance & CAO	MEXER◷◆	906	—	—	—	Open the original filing on SEC.gov
Aug 24	Borges David J.	VP, Finance & CAO	SSELL◷	906	$19.10	$17.3K	-100.0%	Open the original filing on SEC.gov
Aug 24	Borges David J.	VP, Finance & CAO	MEXER◷	906	$2.94	$2.7K	—	Open the original filing on SEC.gov
Aug 21	Borges David J.	VP, Finance & CAO	MEXER◷◆	4,094	—	—	—	Open the original filing on SEC.gov
Aug 21	Borges David J.	VP, Finance & CAO	MEXER◷◆	5,906	—	—	—	Open the original filing on SEC.gov
Aug 21	Borges David J.	VP, Finance & CAO	SSELL◷	10,000	$18.95	$189.5K	-100.0%	Open the original filing on SEC.gov
Aug 21	Borges David J.	VP, Finance & CAO	MEXER◷	4,094	$2.94	$12K	+69.3%	Open the original filing on SEC.gov
Aug 21	Borges David J.	VP, Finance & CAO	MEXER◷	5,906	$3.93	$23.2K	—	Open the original filing on SEC.gov
Aug 20	Cable Thomas J.	Director	MEXER◆	7,500	—	—	—	Open the original filing on SEC.gov
Aug 20	Cable Thomas J.	Director	MEXER◆	7,500	—	—	—	Open the original filing on SEC.gov
Aug 20	Cable Thomas J.	Director	SSELL	15,000	$18.45	$276.8K	-30.0%	Open the original filing on SEC.gov
Aug 20	Cable Thomas J.	Director	MEXER	7,500	$3.93	$29.5K	+17.6%	Open the original filing on SEC.gov
Aug 20	Cable Thomas J.	Director	MEXER	7,500	$2.00	$15K	+21.4%	Open the original filing on SEC.gov
Aug 13	Borges David J.	VP, Finance & CAO	MEXER◷◆	5,000	—	—	—	Open the original filing on SEC.gov
Aug 13	Borges David J.	VP, Finance & CAO	SSELL◷	5,000	$16.95	$84.8K	-100.0%	Open the original filing on SEC.gov
Aug 13	Borges David J.	VP, Finance & CAO	MEXER◷	5,000	$3.93	$19.7K	—	Open the original filing on SEC.gov
Aug 12	Schocken Joseph L	Director	AGRANT◆	30,000	—	—	—	Open the original filing on SEC.gov
Jul 22	Demopulos Gregory A MD	Chairman, CEO &…	AGRANT◆	1M	—	—	—	Open the original filing on SEC.gov
Jul 22	Cancelmo Peter B	VP, General Counsel	AGRANT◆	105,000	—	—	—	Open the original filing on SEC.gov
Jul 22	Borges David J.	VP, Finance & CAO	AGRANT◆	105,000	—	—	—	Open the original filing on SEC.gov
Jun 18	Shah Rajiv	Director	AGRANT◆	15,000	—	—	—	Open the original filing on SEC.gov
Jun 18	Perkinson Diana T.	Director	AGRANT◆	15,000	—	—	—	Open the original filing on SEC.gov
Jun 18	Hood Leroy E. MD PhD	Director	AGRANT◆	15,000	—	—	—	Open the original filing on SEC.gov
Jun 18	Hanish Arnold C	Director	AGRANT◆	15,000	—	—	—	Open the original filing on SEC.gov
Jun 18	Demopulos Peter A MD	Director	AGRANT◆	15,000	—	—	—	Open the original filing on SEC.gov
Jun 18	Cable Thomas J.	Director	AGRANT◆	15,000	—	—	—	Open the original filing on SEC.gov
Jun 18	Bumol Thomas F.	Director	AGRANT◆	15,000	—	—	—	Open the original filing on SEC.gov
May 22	Cable Thomas J.	Director	MEXER◷◆	7,500	—	—	—	Open the original filing on SEC.gov
May 22	Cable Thomas J.	Director	SSELL◷	7,500	$11.61	$87K	-17.6%	Open the original filing on SEC.gov
May 22	Cable Thomas J.	Director	MEXER◷	7,500	$10.84	$81.3K	+21.4%	Open the original filing on SEC.gov
Feb 18	Demopulos Gregory A MD	Chairman, CEO &…	MEXER◆	400,000	—	—	—	Open the original filing on SEC.gov
Feb 18	Demopulos Gregory A MD	Chairman, CEO &…	FTAX	357,678	$11.93	$4.3M	-19.6%	Open the original filing on SEC.gov
Feb 18	Demopulos Gregory A MD	Chairman, CEO &…	MEXER	400,000	$10.27	$4.1M	+28.0%	Open the original filing on SEC.gov
Jan 13	Borges David J.	VP, Finance & CAO	MEXER◆	30,000	—	—	—	Open the original filing on SEC.gov
Jan 13	Borges David J.	VP, Finance & CAO	SSELL	30,000	$12.31	$369.3K	-100.0%	Open the original filing on SEC.gov
Jan 13	Borges David J.	VP, Finance & CAO	MEXER	30,000	$3.06	$91.8K	—	Open the original filing on SEC.gov
Jan 12	Borges David J.	VP, Finance & CAO	SSELL	30,000	$12.72	$381.6K	-100.0%	Open the original filing on SEC.gov
Oct 13, 2025	Demopulos Gregory A MD	Chairman, CEO &…	GGIFT	300,000	—	—	—	Open the original filing on SEC.gov
Oct 13, 2025	Demopulos Gregory A MD	Chairman, CEO &…	GGIFT	300,000	—	—	—	Open the original filing on SEC.gov
Oct 13, 2025	Demopulos Gregory A MD	Chairman, CEO &…	GGIFT	600,000	—	—	-29.6%	Open the original filing on SEC.gov
Jun 30, 2025	Demopulos Gregory A MD	Chairman, CEO &…	AGRANT◆	865,000	—	—	—	Open the original filing on SEC.gov
Jun 30, 2025	Cancelmo Peter B	VP, General Counsel	AGRANT◆	100,000	—	—	—	Open the original filing on SEC.gov
Jun 30, 2025	Borges David J.	VP, Finance & CAO	AGRANT◆	95,000	—	—	—	Open the original filing on SEC.gov
Jun 27, 2025	Shah Rajiv	Director	AGRANT◆	15,000	—	—	—	Open the original filing on SEC.gov
Jun 27, 2025	Perkinson Diana T.	Director	AGRANT◆	15,000	—	—	—	Open the original filing on SEC.gov
Jun 27, 2025	Hood Leroy E. MD PhD	Director	AGRANT◆	15,000	—	—	—	Open the original filing on SEC.gov
Jun 27, 2025	Hanish Arnold C	Director	AGRANT◆	15,000	—	—	—	Open the original filing on SEC.gov
Jun 27, 2025	Demopulos Peter A MD	Director	AGRANT◆	15,000	—	—	—	Open the original filing on SEC.gov
Jun 27, 2025	Cable Thomas J.	Director	AGRANT◆	15,000	—	—	—	Open the original filing on SEC.gov
Jun 27, 2025	Bumol Thomas F.	Director	AGRANT◆	15,000	—	—	—	Open the original filing on SEC.gov

MEXER◷◆—

Borges David J. · VP, Finance & CAOSep 23

10,000 sh

SSELL◷$209.5K

Borges David J. · VP, Finance & CAOSep 23

10,000 sh @ $20.95 · -100.0% own

MEXER◷$155.8K

Borges David J. · VP, Finance & CAOSep 23

10,000 sh @ $15.58

MEXER◷◆—

Borges David J. · VP, Finance & CAOSep 22

5,000 sh

MEXER◷◆—

Borges David J. · VP, Finance & CAOSep 22

5,000 sh

SSELL◷$209.5K

Borges David J. · VP, Finance & CAOSep 22

10,000 sh @ $20.95 · -100.0% own

MEXER◷$14.7K

Borges David J. · VP, Finance & CAOSep 22

5,000 sh @ $2.94 · +100.0% own

MEXER◷$19.7K

Borges David J. · VP, Finance & CAOSep 22

5,000 sh @ $3.93

MEXER◆—

Cancelmo Peter B · VP, General…Aug 31

25,000 sh

SSELL$463.5K

Cancelmo Peter B · VP, General…Aug 31

25,000 sh @ $18.54 · -99.2% own

MEXER$73.5K

Cancelmo Peter B · VP, General…Aug 31

25,000 sh @ $2.94 · +12,500% own

MEXER◆—

Cancelmo Peter B · VP, General…Aug 28

25,000 sh

SSELL$466.1K

Cancelmo Peter B · VP, General…Aug 28

25,000 sh @ $18.65 · -99.2% own

MEXER$73.5K

Cancelmo Peter B · VP, General…Aug 28

25,000 sh @ $2.94 · +12,500% own

MEXER◆—

Hanish Arnold C · DirectorAug 27

7,500 sh

MEXER◆—

Hanish Arnold C · DirectorAug 27

2,500 sh

SSELL$95.1K

Hanish Arnold C · DirectorAug 27

5,000 sh @ $19.02 · -100.0% own

SSELL$94.4K

Hanish Arnold C · DirectorAug 27

5,000 sh @ $18.88 · -50.0% own

MEXER$110K

Hanish Arnold C · DirectorAug 27

7,500 sh @ $14.66 · +300.0% own

MEXER$39.5K

Hanish Arnold C · DirectorAug 27

2,500 sh @ $15.81

MEXER◆—

Hanish Arnold C · DirectorAug 26

5,000 sh

SSELL$92.6K

Hanish Arnold C · DirectorAug 26

5,000 sh @ $18.53 · -100.0% own

MEXER$79.1K

Hanish Arnold C · DirectorAug 26

5,000 sh @ $15.81

MEXER◷◆—

Borges David J. · VP, Finance & CAOAug 24

906 sh

SSELL◷$17.3K

Borges David J. · VP, Finance & CAOAug 24

906 sh @ $19.10 · -100.0% own

MEXER◷$2.7K

Borges David J. · VP, Finance & CAOAug 24

906 sh @ $2.94

MEXER◷◆—

Borges David J. · VP, Finance & CAOAug 21

4,094 sh

MEXER◷◆—

Borges David J. · VP, Finance & CAOAug 21

5,906 sh

SSELL◷$189.5K

Borges David J. · VP, Finance & CAOAug 21

10,000 sh @ $18.95 · -100.0% own

MEXER◷$12K

Borges David J. · VP, Finance & CAOAug 21

4,094 sh @ $2.94 · +69.3% own

MEXER◷$23.2K

Borges David J. · VP, Finance & CAOAug 21

5,906 sh @ $3.93

MEXER◆—

Cable Thomas J. · DirectorAug 20

7,500 sh

MEXER◆—

Cable Thomas J. · DirectorAug 20

7,500 sh

SSELL$276.8K

Cable Thomas J. · DirectorAug 20

15,000 sh @ $18.45 · -30.0% own

MEXER$29.5K

Cable Thomas J. · DirectorAug 20

7,500 sh @ $3.93 · +17.6% own

MEXER$15K

Cable Thomas J. · DirectorAug 20

7,500 sh @ $2.00 · +21.4% own

MEXER◷◆—

Borges David J. · VP, Finance & CAOAug 13

5,000 sh

SSELL◷$84.8K

Borges David J. · VP, Finance & CAOAug 13

5,000 sh @ $16.95 · -100.0% own

MEXER◷$19.7K

Borges David J. · VP, Finance & CAOAug 13

5,000 sh @ $3.93

AGRANT◆—

Schocken Joseph L · DirectorAug 12

30,000 sh

AGRANT◆—

Demopulos Gregory A MD · Chairman, CEO &…Jul 22

1M sh

AGRANT◆—

Cancelmo Peter B · VP, General…Jul 22

105,000 sh

AGRANT◆—

Borges David J. · VP, Finance & CAOJul 22

105,000 sh

AGRANT◆—

Shah Rajiv · DirectorJun 18

15,000 sh

AGRANT◆—

Perkinson Diana T. · DirectorJun 18

15,000 sh

AGRANT◆—

Hood Leroy E. MD PhD · DirectorJun 18

15,000 sh

AGRANT◆—

Hanish Arnold C · DirectorJun 18

15,000 sh

AGRANT◆—

Demopulos Peter A MD · DirectorJun 18

15,000 sh

AGRANT◆—

Cable Thomas J. · DirectorJun 18

15,000 sh

AGRANT◆—

Bumol Thomas F. · DirectorJun 18

15,000 sh

MEXER◷◆—

Cable Thomas J. · DirectorMay 22

7,500 sh

SSELL◷$87K

Cable Thomas J. · DirectorMay 22

7,500 sh @ $11.61 · -17.6% own

MEXER◷$81.3K

Cable Thomas J. · DirectorMay 22

7,500 sh @ $10.84 · +21.4% own

MEXER◆—

Demopulos Gregory A MD · Chairman, CEO &…Feb 18

400,000 sh

FTAX$4.3M

Demopulos Gregory A MD · Chairman, CEO &…Feb 18

357,678 sh @ $11.93 · -19.6% own

MEXER$4.1M

Demopulos Gregory A MD · Chairman, CEO &…Feb 18

400,000 sh @ $10.27 · +28.0% own

MEXER◆—

Borges David J. · VP, Finance & CAOJan 13

30,000 sh

SSELL$369.3K

Borges David J. · VP, Finance & CAOJan 13

30,000 sh @ $12.31 · -100.0% own

MEXER$91.8K

Borges David J. · VP, Finance & CAOJan 13

30,000 sh @ $3.06

SSELL$381.6K

Borges David J. · VP, Finance & CAOJan 12

30,000 sh @ $12.72 · -100.0% own

GGIFT—

Demopulos Gregory A MD · Chairman, CEO &…Oct 13, 2025

300,000 sh

GGIFT—

Demopulos Gregory A MD · Chairman, CEO &…Oct 13, 2025

300,000 sh

GGIFT—

Demopulos Gregory A MD · Chairman, CEO &…Oct 13, 2025

600,000 sh · -29.6% own

AGRANT◆—

Demopulos Gregory A MD · Chairman, CEO &…Jun 30, 2025

865,000 sh

AGRANT◆—

Cancelmo Peter B · VP, General…Jun 30, 2025

100,000 sh

AGRANT◆—

Borges David J. · VP, Finance & CAOJun 30, 2025

95,000 sh

AGRANT◆—

Shah Rajiv · DirectorJun 27, 2025

15,000 sh

AGRANT◆—

Perkinson Diana T. · DirectorJun 27, 2025

15,000 sh

AGRANT◆—

Hood Leroy E. MD PhD · DirectorJun 27, 2025

15,000 sh

AGRANT◆—

Hanish Arnold C · DirectorJun 27, 2025

15,000 sh

AGRANT◆—

Demopulos Peter A MD · DirectorJun 27, 2025

15,000 sh

AGRANT◆—

Cable Thomas J. · DirectorJun 27, 2025

15,000 sh

AGRANT◆—

Bumol Thomas F. · DirectorJun 27, 2025

15,000 sh

Filing record

How quickly insiders here report their trades. Section 16 allows two business days from the transaction.

1 of 31 filings we hold was filed after the two-business-day deadline. The furthest past the deadline was 2 business days late.

Form 4 filings made after the two-business-day deadline, with the transaction date, the filing date and the number of business days between them.
Traded	Filed	Insider	Past deadline	Largest line	Source
Aug 12	Aug 18	Schocken Joseph LDirector	2days	—	Filing ↗

Schocken Joseph LDirector

2days

Traded Aug 12 · filed Aug 18Filing ↗

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Insiders at this company

Everyone who has filed a Form 4 for this issuer.

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