COHEN YUVAL (Chief Executive Officer) sold 16.7% of their position (27.63K shares) of CORBUS PHARMACEUTICALS HOLDINGS, INC. on the open market

Open‑market sale worth $471.2K — a significant reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 2 sales

COHEN YUVAL

Filed: 10/27/2025ACC: 0001193125-25-251639

InsiderCOHEN YUVALCIK 1626003

→

IssuerCORBUS PHARMACEUTICALS HOLDINGS, INC.CIK 1595097

DirectorOfficer· Chief Executive Officer

Since Jan 2019

-27.63K

Net shares

Net seller

$471.2K

Total sold

Open market trades

0B · 2S

Total transactions

27.63K acquired · 55.27K disposed

Non-Derivative Transactions4

Common Stock, par value $0.0001 per share

Direct

M · Option Exercise

+18.66K

Price / share

$4.26

Trade value

$79.49K

% of position

13.5%

10/24/2025

138.19K→156.85K

Common Stock, par value $0.0001 per share

Direct

S · Sale

−18.66K

Price / share

$17.01

Trade value

$317.41K

% of position

11.9%

10/24/2025

156.85K→138.19K

Common Stock, par value $0.0001 per share

Direct

M · Option Exercise

+8.97K

Price / share

$4.26

Trade value

$38.22K

% of position

6.5%

10/27/2025

138.19K→147.16K

Common Stock, par value $0.0001 per share

Direct

S · Sale

−8.97K

Price / share

$17.14

Trade value

$153.80K

% of position

6.1%

10/27/2025

147.16K→138.19K

Total

Net shares

+0.00

Net value

-$353.49K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock, par value $0.0001 per share Direct	10/24/2025	M · Option Exercise	+18.66K	$4.26	$79.49K	13.5%	138.19K	156.85K
Common Stock, par value $0.0001 per share Direct	10/24/2025	S · Sale	−18.66K	$17.01	$317.41K	11.9%	156.85K	138.19K
Common Stock, par value $0.0001 per share Direct	10/27/2025	M · Option Exercise	+8.97K	$4.26	$38.22K	6.5%	138.19K	147.16K
Common Stock, par value $0.0001 per share Direct	10/27/2025	S · Sale	−8.97K	$17.14	$153.80K	6.1%	147.16K	138.19K
Total			+0.00		-$353.49K

Derivative Transactions2

Stock options (right to buy)

Direct

M · Option Exercise

Converts to

Common Stock

18.66K shares

−18.66K

Strike price

4.26

Held after

31.08K

Exercisable

—

10/24/2025

Stock options (right to buy)

Direct

M · Option Exercise

Converts to

Common Stock

8.97K shares

−8.97K

Strike price

4.26

Held after

22.11K

Exercisable

—

10/27/2025

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Stock options (right to buy) Direct	Common Stock18.66K shares	10/24/2025	M · Option Exercise	−18.66K	4.26	—	31.08K
Stock options (right to buy) Direct	Common Stock8.97K shares	10/27/2025	M · Option Exercise	−8.97K	4.26	—	22.11K