CRBP · Corbus Pharmaceuticals Holdings, Inc. · Shareholders & Ownership

$4.13 -0.16 (-3.62%) At close · Oct 22

Russell 2000 member Rebalance outlook locked

Market Cap

$79.88M

19.34M

Volume · Oct 22 983.78K Avg daily vol (3M) 849.51K

Every disclosed holder of CRBP in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns CRBP

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

No chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	111	13,820,550	71.46%	Yes
Insiders (Forms 3, 4, 5)	13	581,560	3.01%	Yes
13D/G-only blocks	8	6,163,917	31.87%	Yes
Remaining	—	1,224,734	-6.33%	Negative
Registered funds (N-PORT, not summed)	83	3,505,699	18.13%	No

Shares outstanding: 19,341,293, the issuer's latest cover-page count restated onto today's split basis.

Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of CRBP

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	Cormorant Asset Management, LP 13F CIK 1583977 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	2,344,971	12.12%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
1.1	Cormorant Asset Management, LP Insider CIK 1583977 · Dec 11, 2025 Insider, issuer-wide, not summed	2,344,971	12.12%	-30,029	Dec 11, 2025	Insider, issuer-wide, not summed
2	RA CAPITAL MANAGEMENT, L.P. 13G CIK 1346824 · Registered investment adviser · Sep 23, 2026 Rule 13d-1(c), passive investor	1,914,788	9.90%	+1,484,606	Sep 23, 2026	Rule 13d-1(c), passive investor
3	ORBIMED ADVISORS LLC 13F CIK 1055951 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,737,287	8.98%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
4	Cormorant Global Healthcare Master Fund, LP 13G CIK 1618442 · Unknown · Jan 26, 2024 Rule 13d-1(c), passive investor	1,475,000	7.63%	—	Jan 26, 2024	Rule 13d-1(c), passive investor
5	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	1,331,135	6.88%	+1,059,499	Jun 30, 2026	carried, not yet filed for the newest quarter
5.1	BlackRock, Inc. 13G CIK 2012383 · Holding company · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	1,093,434	5.65%	+741,025	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
5.2	iShares Russell 2000 ETF Fund S000004344 · Registered fund · Jun 30, 2026 iShares Trust, not summed	406,966	2.10%	—	Jun 30, 2026	iShares Trust, not summed
5.3	iShares Russell 2000 Value ETF Fund S000004342 · Registered fund · Jun 30, 2026 iShares Trust, not summed	157,182	0.81%	—	Jun 30, 2026	iShares Trust, not summed
5.4	iShares Micro-Cap ETF Fund S000004439 · Registered fund · Jun 30, 2026 iShares Trust, not summed	55,352	0.29%	+14,193	Jun 30, 2026	iShares Trust, not summed
5.5	Master Small Cap Index Series Fund S000002716 · Registered fund · Jun 30, 2026 Quantitative Master Series LLC, not summed	30,772	0.16%	—	Jun 30, 2026	Quantitative Master Series LLC, not summed
6	Aberdeen Group plc 13F CIK 1716774 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	1,321,750	6.83%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
7	ADAGE CAPITAL PARTNERS GP, L.L.C. 13G CIK 1165408 · Registered investment adviser · Feb 2, 2024 Rule 13d-1(c), passive investor	796,392	4.12%	—	Feb 2, 2024	Rule 13d-1(c), passive investor
8	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	760,940	3.93%	+26,834	Jun 30, 2026	carried, not yet filed for the newest quarter
9	Jones Hill Capital LP 13F CIK 2102314 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	653,572	3.38%	+653,572	Jun 30, 2026	carried, not yet filed for the newest quarter
10	Prosight Management, LP 13F CIK 1617201 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	650,000	3.36%	-47,108	Jun 30, 2026	carried, not yet filed for the newest quarter
11	TANG CAPITAL MANAGEMENT LLC 13G CIK 1232621 · Unknown · Sep 30, 2024 Rule 13d-1(c), passive investor	600,000	3.10%	—	Sep 30, 2024	Rule 13d-1(c), passive investor
12	abrdn Life Sciences Investors Fund · Registered fund · Jun 30, 2026 abrdn Life Sciences Investors, not summed	543,719	2.81%	—	Jun 30, 2026	abrdn Life Sciences Investors, not summed
12.1	abrdn Healthcare Investors Fund · Registered fund · Jun 30, 2026 abrdn Healthcare Investors, not summed	778,031	4.02%	—	Jun 30, 2026	abrdn Healthcare Investors, not summed
13	VANGUARD TOTAL STOCK MARKET INDEX FUND Fund S000002848 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	533,575	2.76%	0	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
14	Adage Capital Management, L.P. 13G CIK 1535978 · Investment adviser · Sep 30, 2024 Rule 13d-1(b), qualified institution	528,937	2.73%	—	Sep 30, 2024	Rule 13d-1(b), qualified institution
15	TANG CAPITAL MANAGEMENT, LLC 13G CIK 1191935 · Unknown · Jan 26, 2024 Rule 13d-1(c), passive investor	426,220	2.20%	—	Jan 26, 2024	Rule 13d-1(c), passive investor
16	Stonepine Capital Management, LLC 13F CIK 1440771 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	425,000	2.20%	+41,538	Jun 30, 2026	carried, not yet filed for the newest quarter
17	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	423,374	2.19%	+236,345	Jun 30, 2026	carried, not yet filed for the newest quarter
18	ADAR1 Capital Management, LLC 13F CIK 1940272 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	421,787	2.18%	+90,006	Jun 30, 2026	carried, not yet filed for the newest quarter
19	Millennium Management LLC 13G CIK 1319244 · Unknown · Jan 31, 2024 Rule 13d-1(c), passive investor	419,707	2.17%	—	Jan 31, 2024	Rule 13d-1(c), passive investor
20	DIADEMA PARTNERS LP 13F CIK 2026172 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	301,264	1.56%	-138,693	Jun 30, 2026	carried, not yet filed for the newest quarter
21	SUSQUEHANNA INTERNATIONAL GROUP, LLP 13F CIK 1446194 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	293,203	1.52%	-40,212	Jun 30, 2026	carried, not yet filed for the newest quarter
22	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	254,672	1.32%	+185,800	Jun 30, 2026	carried, not yet filed for the newest quarter
22.1	STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO Fund S000050332 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	4,000	0.02%	—	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
22.2	State Street Total Return V.I.S. Fund Fund S000001637 · Registered fund · Jun 30, 2026 STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed	416	0.00%	—	Jun 30, 2026	STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
22.3	State Street Balanced Index Fund Fund S000082802 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	113	0.00%	0	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
23	VANGUARD EXTENDED MARKET INDEX FUND Fund S000002841 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	208,310	1.08%	+29,887	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
24	DIMENSIONAL FUND ADVISORS LP 13F CIK 354204 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	190,214	0.98%	+53,612	Jun 30, 2026	carried, not yet filed for the newest quarter
24.1	Dimensional U.S. Small Cap ETF Fund S000070906 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	58,383	0.30%	0	Jul 31, 2026	Dimensional ETF Trust, not summed
24.2	U.S. MICRO CAP PORTFOLIO Fund S000000948 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	31,546	0.16%	+15,136	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
24.3	U.S. SMALL CAP PORTFOLIO Fund S000000971 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	26,811	0.14%	-5,585	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
24.4	U.S. VECTOR EQUITY PORTFOLIO Fund S000000982 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	10,512	0.05%	+8,144	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
24.5	Dimensional U.S. Core Equity 2 ETF Fund S000070903 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	4,229	0.02%	0	Jul 31, 2026	Dimensional ETF Trust, not summed
25	Exome Asset Management LLC 13F CIK 2011932 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	184,914	0.96%	-49,222	Jun 30, 2026	carried, not yet filed for the newest quarter
26	Cohen Yuval Insider CIK 1626003 · Aug 7, 2026 Director, Chief Executive Officer, issuer-wide	157,316	0.81%	-17,000	Aug 7, 2026	Director, Chief Executive Officer, issuer-wide
27	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 13F CIK 1705339 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	151,640	0.78%	-8,822	Jun 30, 2026	carried, not yet filed for the newest quarter
27.1	Global X Russell 2000 ETF Fund S000085029 · Registered fund · Jul 31, 2026 GLOBAL X FUNDS, not summed	7,862	0.04%	—	Jul 31, 2026	GLOBAL X FUNDS, not summed
28	JANE STREET GROUP, LLC 13F CIK 1595888 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	139,133	0.72%	+65,940	Jun 30, 2026	carried, not yet filed for the newest quarter
29	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	124,906	0.65%	+83,402	Jun 30, 2026	carried, not yet filed for the newest quarter
29.1	Small Cap Index Fund Fund S000001245 · Registered fund · Jun 30, 2026 Northern Funds, not summed	8,618	0.04%	—	Jun 30, 2026	Northern Funds, not summed
30	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	112,397	0.58%	+16,156	Jun 30, 2026	carried, not yet filed for the newest quarter
31	VANGUARD PORTFOLIO MANAGEMENT LLC 13F CIK 2100121 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	111,302	0.58%	+86,937	Jun 30, 2026	carried, not yet filed for the newest quarter
32	RENAISSANCE TECHNOLOGIES LLC 13F CIK 1037389 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	110,822	0.57%	-236,176	Jun 30, 2026	carried, not yet filed for the newest quarter
33	DAFNA Capital Management LLC 13F CIK 1389933 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	107,773	0.56%	+107,773	Jun 30, 2026	carried, not yet filed for the newest quarter
34	CITADEL ADVISORS LLC 13F CIK 1423053 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	92,154	0.48%	-634,906	Jun 30, 2026	carried, not yet filed for the newest quarter
34.1	CITADEL ADVISORS LLC 13G CIK 1423053 · Registered investment adviser · Jun 30, 2026 Rule 13d-1(c), passive investor, not summed	206,354	1.07%	-774,256	Jun 30, 2026	Rule 13d-1(c), passive investor, not summed
35	Advisory Services Network, LLC 13F CIK 1573876 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	89,951	0.47%	+89,937	Jun 30, 2026	carried, not yet filed for the newest quarter
36	Smethurst Dominic Insider CIK 1820549 · Mar 2, 2026 Chief Medical Officer, issuer-wide	89,790	0.46%	-6,097	Mar 2, 2026	Chief Medical Officer, issuer-wide
37	Moran Sean F. Insider CIK 1451495 · Aug 7, 2026 Chief Financial Officer, issuer-wide	84,694	0.44%	-12,000	Aug 7, 2026	Chief Financial Officer, issuer-wide
38	MARSHALL WACE, LLP 13F CIK 1318757 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	79,331	0.41%	-67,265	Jun 30, 2026	carried, not yet filed for the newest quarter
39	BNP PARIBAS ARBITRAGE, SA 13F CIK 1166588 · Non-US institution · Jun 30, 2026 carried, not yet filed for the newest quarter	78,120	0.40%	+67,631	Jun 30, 2026	carried, not yet filed for the newest quarter
40	Saxena Nishant C Insider CIK 2136365 · Aug 11, 2026 Chief Business Officer, issuer-wide	77,900	0.40%	+2,600	Aug 11, 2026	Chief Business Officer, issuer-wide
41	Persistent Asset Partners Ltd 13F CIK 2056052 · Exempt reporting adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	76,919	0.40%	-34,307	Jun 30, 2026	carried, not yet filed for the newest quarter
42	Susquehanna Portfolio Strategies, LLC 13F CIK 1996449 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	75,979	0.39%	+75,979	Jun 30, 2026	carried, not yet filed for the newest quarter
43	DOLIVER ADVISORS, LP 13F CIK 938077 · Registered investment adviser · Sep 30, 2026	75,975	0.39%	+75,975	Sep 30, 2026
44	XTX Topco Ltd 13F CIK 1828301 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	67,654	0.35%	+29,631	Jun 30, 2026	carried, not yet filed for the newest quarter
45	Verdad Advisers, LP 13F CIK 1812822 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	63,603	0.33%	+13,351	Jun 30, 2026	carried, not yet filed for the newest quarter
46	GOLDMAN SACHS GROUP INC 13F CIK 886982 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	62,863	0.33%	-30,248	Jun 30, 2026	carried, not yet filed for the newest quarter
46.1	Goldman Sachs Absolute Return Tracker Fund Fund S000020314 · Registered fund · Jun 30, 2026 GOLDMAN SACHS TRUST, not summed	17,490	0.09%	+11,994	Jun 30, 2026	GOLDMAN SACHS TRUST, not summed
47	Nicacio Leonardo Viana Insider CIK 2064901 · Aug 16, 2026 Chief Medical Officer, issuer-wide	58,333	0.30%	—	Aug 16, 2026	Chief Medical Officer, issuer-wide
48	CHARLES SCHWAB INVESTMENT MANAGEMENT INC 13F CIK 884546 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	55,455	0.29%	+55,455	Jun 30, 2026	carried, not yet filed for the newest quarter
48.1	Schwab Small-Cap Index Fund Fund S000005912 · Registered fund · Jul 31, 2026 SCHWAB CAPITAL TRUST, not summed	39,702	0.21%	—	Jul 31, 2026	SCHWAB CAPITAL TRUST, not summed
48.2	Schwab Total Stock Market Index Fund Fund S000005913 · Registered fund · Jul 31, 2026 SCHWAB CAPITAL TRUST, not summed	20,000	0.10%	+15,187	Jul 31, 2026	SCHWAB CAPITAL TRUST, not summed
49	HSBC HOLDINGS PLC 13F CIK 873630 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	55,224	0.29%	+55,224	Jun 30, 2026	carried, not yet filed for the newest quarter
50	Hodgson Ian Insider CIK 2057525 · Feb 17, 2026 Chief Operating Officer, issuer-wide	51,080	0.26%	-847	Feb 17, 2026	Chief Operating Officer, issuer-wide

9 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 172 holders

Create a free account to page through every holder, filter by source and group by ultimate parent.

Key facts CIK 1595097 CUSIP 21833P301 13F (30d) 14 filings 14 filers Visit website Investor relations