OPTIMIZERX CORP

PublicCIK: 1448431
OPRXNASDAQ
Location

WALTHAM, MA

13F Filings

Institutional Holders

OPTIMIZERX CORPOPRX— Latest position per institution from SEC 13F filings

15

Institutional holders

16.60M

Total shares held

135.86M

Estimated value

830.02K

Avg. position size

1

FIRST LIGHT ASSET MANAGEMENT, LLC

CIK 1600004

Shares

1.81M

Value

13.99M

Filed

Sep 30, 2024

2

WHETSTONE CAPITAL ADVISORS, LLC

CIK 1607278

Shares

1.51M

Value

9.47M

Filed

Mar 31, 2026

3

DIVISADERO STREET CAPITAL MANAGEMENT, LP

CIK 1901865

Shares

1.32M

Value

13.16M

Filed

Jun 30, 2024

4

BLACKROCK FINANCE, INC.

CIK 1364742

Shares

1.18M

Value

11.75M

Filed

Jun 30, 2024

5

BLACKROCK, INC.

CIK 2012383

Shares

1.16M

Value

7.31M

Filed

Mar 31, 2026

6

VANGUARD GROUP INC

CIK 102909

Shares

1.14M

Value

13.94M

Filed

Dec 31, 2025

7

SAMJO MANAGEMENT, LLC

CIK 1986590

Shares

1.04M

Value

8.07M

Filed

Sep 30, 2024

8

ROYCE & ASSOCIATES LP

CIK 906304

Shares

888.03K

Value

5.58M

Filed

Mar 31, 2026

9

PARKMAN HEALTHCARE PARTNERS LLC

CIK 1777015

Shares

729.37K

Value

4.58M

Filed

Mar 31, 2026

10

VANGUARD CAPITAL MANAGEMENT LLC

CIK 2100119

Shares

685.45K

Value

4.30M

Filed

Mar 31, 2026

11

KENNEDY CAPITAL MANAGEMENT LLC

CIK 884589

Shares

656.26K

Value

4.12M

Filed

Mar 31, 2026

12

BLAIR WILLIAM & CO/IL

CIK 902367

Shares

614.99K

Value

3.86M

Filed

Mar 31, 2026

13

RICE HALL JAMES & ASSOCIATES, LLC

CIK 1230765

Shares

601.92K

Value

3.78M

Filed

Mar 31, 2026

14

DIMENSIONAL FUND ADVISORS LP

CIK 354204

Shares

563.57K

Value

3.54M

Filed

Mar 31, 2026

15

NEXT CENTURY GROWTH INVESTORS LLC

CIK 1134007

Shares

505.41K

Value

6.20M

Filed

Dec 31, 2025

16

CASDIN CAPITAL, LLC

CIK 1534261

Shares

500K

Value

7.32M

Filed

Mar 31, 2023

17

STATE STREET CORP

CIK 93751

Shares

477.78K

Value

3M

Filed

Mar 31, 2026

18

WASATCH ADVISORS LP

CIK 814133

Shares

458.64K

Value

6.55M

Filed

Jun 30, 2023

19

GEODE CAPITAL MANAGEMENT, LLC

CIK 1214717

Shares

392.13K

Value

2.46M

Filed

Mar 31, 2026

20

JACOB ASSET MANAGEMENT OF NEW YORK LLC

CIK 1279256

Shares

370.33K

Value

2.88M

Filed

Sep 30, 2023

Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.