Corbus Pharmaceuticals Holdings CRBP Insider Ownership

NASDAQ CRBP

$4.48 +0.06 (+1.36%)

As of: Oct 21, 2026 · 10:23 AM EDT

Insider Holdings by Owner

2.99Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

15.08%

▲+0.154% pp QoQ

Shares Held by Insiders

2.93Mn

filed for Sep 2026

▲+1.03% QoQ

Shares Outstanding

19.41Mn

19,407,688 shares

Direct Holdings

581.56K

Indirect: 2.34Mn

Net Shares Traded (QoQ)

+29.93K

net buying in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 10, 2026

Over the past year, CRBP insiders bought $126,255 of stock (16.1K shares) and sold $1.69 million (143.16K shares) on the open market.

Corbus Pharmaceuticals Holdings' open-market purchases in the past 12 months came from one insider, and its sales from 9 insiders.
Among CRBP insiders, Nishant C. Saxena (Chief Business Officer) bought the most stock on the open market in the past 12 months: $126,255 (16.1K shares), most recently on August 11, 2026.
On the selling side, Yuval Cohen (Chief Executive Officer) sold the most Corbus Pharmaceuticals Holdings stock on the open market over the past 12 months, $750,552 (58.5K shares), most recently on August 7, 2026.
The latest open-market trade on record is a sale of 2K shares for $15,683 by Yong Ben (Director) on September 14, 2026.
Beyond open-market trades, insiders at Corbus Pharmaceuticals Holdings received 234.38K shares in stock awards and acquired 41.67K shares through option exercises and conversions in the last 12 months.
According to Business Quant data, insiders at Corbus Pharmaceuticals Holdings reported 2.93Mn shares in total in their latest Form 4 filings, up 1.03% from 2.9Mn shares at the end of Q2 2026 and up 7.93% from 2.71Mn shares at the end of Q3 2025.
Corbus Pharmaceuticals Holdings insiders hold 581.56K shares directly (19.87% of their total) and 2.34Mn shares (80.13%) indirectly, through entities such as trusts and partnerships.
Per Business Quant, 14 insiders of CRBP hold shares, counting officers, directors and 10% owners who have filed a Form 4 in the past two years.
CRBP's three largest insider shareholders, per their latest Form 4 filings, are Cormorant Asset Management, LP (10% owner, 2.34Mn shares), Yuval Cohen (Chief Executive Officer, 157.32K shares) and Dominic Smethurst (Chief Medical Officer, 89.79K shares).
The largest insider, Cormorant Asset Management, LP, holds 80.13% of CRBP's insider total.
Institutional investors held 71.02% of Corbus Pharmaceuticals Holdings stock at the end of Q2 2026, while the latest Form 4 filings of its insiders account for about 15.08%; other investors, including the public, hold roughly 13.90%.
Over the past 12 months, 13 insiders reported transactions in Corbus Pharmaceuticals Holdings stock in 30 Form 4 filings.
The insider holdings and trades above for Corbus Pharmaceuticals Holdings reflect Form 4 filings through September 15, 2026.

Form 4 Holdings

Insiders Holding CRBP

Insiders 17

Shares held 2.99Mn

Of outstanding 15.42%

#	Insider	Position	Direct	Indirect	Total	Share of Insiders	Last Filed
1	Asset Management, Lp Cormorant	TenPercentOwner	0	2,344,971	2,344,971	78.4%	15 Dec, 2025
2	Yuval Cohen	Chief Executive Officer	164,495	0	164,495	5.5%	10 Aug, 2026
3	Sean F. Moran	Chief Financial Officer	133,299	0	133,299	4.5%	10 Aug, 2026
4	Dominic Smethurst	Chief Medical Officer	89,790	0	89,790	3.0%	04 Mar, 2026
5	Nishant C Saxena	Chief Business Officer	77,900	0	77,900	2.6%	12 Aug, 2026
6	Leonardo Viana Nicacio	Chief Medical Officer	58,333	0	58,333	1.9%	17 Aug, 2026
7	Ian Hodgson	Chief Operating Officer	51,080	0	51,080	1.7%	18 Feb, 2026
8	Winston Kung	Director	12,140	0	12,140	0.4%	11 Jun, 2026
9	Alan F Holmer	Director	12,008	0	12,008	0.4%	02 Jun, 2025
10	Rachelle Suzanne Jacques	Director	11,383	0	11,383	0.4%	21 May, 2026
11	Yong Ben	Director	9,383	0	9,383	0.3%	15 Sep, 2026
12	Anne Altmeyer	Director	7,579	0	7,579	0.3%	11 Jun, 2026
13	Brent Pfeiffenberger	Director	7,500	0	7,500	0.3%	21 May, 2026
14	Avery W Catlin	Director	4,350	0	4,350	0.1%	03 Jun, 2024
15	John Kenneth Jenkins	Director	3,833	0	3,833	0.1%	11 Jun, 2026
16	Peter Salzmann	Director	2,783	0	2,783	0.1%	03 Jun, 2024
17	Craig Stuart Millian	Chief Operating Officer	900	0	900	0.0%	12 Aug, 2022

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

457 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
14 Sep, 2026	Yong Ben	Director	Disposed S	2,000	$7.84	$15.68K	9,383	Direct
16 Aug, 2026	Leonardo Viana Nicacio	Chief Medical Officer	Acquired A	58,333	$0.00	$0	58,333	Direct
16 Aug, 2026	Leonardo Viana Nicacio	Chief Medical Officer	Acquired A	191,676	$0.00	$0	191,676	Direct
11 Aug, 2026	Nishant C Saxena	Chief Business Officer	Acquired P	2,600	$9.63	$25.04K	77,900	Direct
07 Aug, 2026	Sean F. Moran	Chief Financial Officer	Disposed S	12,000	$10.08	$120.97K	84,694	Direct
07 Aug, 2026	Yuval Cohen	Chief Executive Officer	Disposed S	17,000	$10.08	$171.40K	157,316	Direct
10 Jun, 2026	Winston Kung	Director	Disposed S	2,026	$7.91	$16.03K	12,140	Direct
10 Jun, 2026	John Kenneth Jenkins	Director	Disposed S	4,800	$7.91	$37.99K	3,833	Direct
10 Jun, 2026	Anne Altmeyer	Director	Disposed S	2,412	$7.91	$19.09K	7,579	Direct
02 Jun, 2026	Nishant C Saxena	Chief Business Officer	Acquired P	4,500	$7.33	$33.00K	66,300	Direct
03 Jun, 2026	Nishant C Saxena	Chief Business Officer	Acquired P	9,000	$7.58	$68.22K	75,300	Direct
21 May, 2026	Nishant C Saxena	Chief Business Officer	Acquired A	58,300	$0.00	$0	61,800	Direct
21 May, 2026	Nishant C Saxena	Chief Business Officer	Acquired A	192,300	$0.00	$0	192,300	Direct
19 May, 2026	Brent Pfeiffenberger	Director	Acquired A	7,500	$0.00	$0	7,500	Direct
19 May, 2026	Anne Altmeyer	Director	Acquired A	3,800	$0.00	$0	9,991	Direct
19 May, 2026	John Kenneth Jenkins	Director	Acquired A	3,800	$0.00	$0	8,633	Direct
19 May, 2026	Winston Kung	Director	Acquired A	3,800	$0.00	$0	14,166	Direct
19 May, 2026	Rachelle Suzanne Jacques	Director	Acquired A	3,800	$0.00	$0	11,383	Direct
19 May, 2026	Yong Ben	Director	Acquired A	3,800	$0.00	$0	11,383	Direct
19 May, 2026	Rachelle Suzanne Jacques	Director	Acquired A	12,300	$0.00	$0	12,300	Direct

Showing 1 to 20 of 457 transactions