Inhibrx Biosciences, Inc. (INBX) Institutional Ownership

Institutions by Trading Activity

15,478,000Shares Outstanding

12,791,852Shares held by institutions

$1,190,665,584Value of institutional holdings

82.65%Institutional ownership %

25.05%Shares Changed QoQ

135No. of institutional investors

Inhibrx Biosciences, Inc. (NASDAQ:INBX) has 135 institutional investors that have filed 13F reports for the period ending December 2025.

These investors held 82.6% of outstanding shares in December 2025, up from 68.0% in September 2025.
They increased total shares held in Inhibrx Biosciences by 25.05% from the prior quarter, while the number of investors in INBX increased 32.35% year over year.
During the quarter, 81 of these 135 funds increased positions in INBX, 38 reduced exposure, and 16 held steady.
Institutional investors collectively held 12.79Mn shares in Inhibrx Biosciences as of December 2025, up by 2.56Mn shares quarter on quarter, and up 1.45Mn shares year over year.
GAMMA Investing LLC is the top holder of Inhibrx Biosciences as of December 31, 2025, with 10 shares representing 0.0% of outstanding stock.
Business Quant data shows the 1 biggest positions in Inhibrx Biosciences as of December 2025 are held by GAMMA Investing LLC (10).

12,791,852 Total Shares Held

Rows:

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
PERCEPTIVE ADVISORS LLC	31 Dec, 2025	1,452,707	125,000	9.41%	$114,763,853.00
VIKING GLOBAL INVESTORS LP	31 Dec, 2025	1,437,705	-350,000	-19.58%	$113,578,695.00
Morgan Stanley	31 Dec, 2025	1,167,728	724,872	163.68%	$92,250,538.00
Sanofi	31 Dec, 2025	1,157,926	0	0.00%	$91,476,154.00
HighTower Advisors, LLC	31 Dec, 2025	870,507	-1,252	-0.14%	$68,770,053.00
BlackRock, Inc.	31 Dec, 2025	777,383	92,637	13.53%	$61,413,257.00
VANGUARD GROUP INC	31 Dec, 2025	623,084	28,166	4.73%	$49,223,636.00
Sofinnova Investments, Inc.	31 Dec, 2025	454,657	14,565	3.31%	$35,917,903.00
Capital Research Global Investors	31 Dec, 2025	421,575	421,575	0.00%	$33,304,425.00
State Street Corp	31 Dec, 2025	374,961	171,038	83.87%	$29,621,919.00
Caligan Partners LP	31 Dec, 2025	323,565	87,182	36.88%	$25,561,635.00
SUSQUEHANNA INTERNATIONAL GROUP, LLP	31 Dec, 2025	297,116	297,116	0.00%	$23,472,164.00
MILLENNIUM MANAGEMENT LLC	31 Dec, 2025	275,917	-21,903	-7.35%	$21,797,443.00
PFM Health Sciences, LP	31 Dec, 2025	265,517	25,873	10.80%	$20,975,843.00
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND	31 Dec, 2025	264,000	264,000	0.00%	$20,856,000.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	226,009	4,089	1.84%	$17,858,743.00
Schonfeld Strategic Advisors LLC	31 Dec, 2025	214,725	117,343	120.50%	$16,963,275.00
Goldman Sachs Group Inc	31 Dec, 2025	201,234	175,268	674.99%	$15,897,486.00
Woodline Partners LP	31 Dec, 2025	139,479	-197,111	-58.56%	$11,018,841.00
NORGES BANK	31 Dec, 2025	133,300	133,300	0.00%	$10,530,700.00

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