HolderBook

INHIBRX BIOSCIENCES INC (INBX)

Institutional ownership reported to the SEC as of Q3 2026, across 25 quarters.

5
Reporting holders
$719.9K
Reported value
0.0%
Calls
0.0%
Puts
-163
Holder change

Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.

Holders

Download these holders as CSV

FilerValueShares Their book Held Change
Persium Advisors, LLC$487.9K4,8750.26%2q-50.0%-$487.9K
Farther Finance Advisors, LLC$186.9K1,8680.00%10q+10888.2%+$185.2K
GAMMA Investing LLC$27.9K2790.00%10q+54.1%+$9.8K
Versant Capital Management, Inc$16.8K1680.00%7qHELD
CoreCap Advisors, LLC$30030.00%newNEW

Five percent filings

Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →

FiledFormFiler % of class
2026-08-1413G/AVIKING GLOBAL INVESTORS LPwith 10 co-filers9.3%
2026-08-1413G/APerceptive Advisors LLCwith 2 co-filers10.0%
2026-08-1413GSchonfeld Strategic Advisors LLC5.3%
2026-08-0313GBANK OF AMERICA CORP /DE/5.9%

What the insiders did

Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.

Officers and directors

DateInsiderRoleSideSharesValue
2026-09-08Lappe MarkChief Executive OfficerBought25,000$2.6M ×6
2026-09-08Kayyem Jon FaizDirectorBought5,000$567.6K
2026-09-25Lappe MarkChief Executive OfficerBought5,500$545.4K ×2
2026-09-16Kayyem Jon FaizDirectorBought5,000$500.0K
2026-09-23Kayyem Jon FaizDirectorBought5,000$500.0K
2026-09-28Lappe MarkChief Executive OfficerBought4,500$453.4K ×2
2026-09-08FORSYTH DOUGLASDirectorBought2,500$286.6K

Quarter by quarter

Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.

QuarterHoldersValue SharesNewAdded TrimmedOptions
Q3 20265$719.9K7,1931210.0%
Q2 2026168$1.5B15,048,9565255412.8%
Q1 2026138$880.8M12,718,6591654332.9%
Q4 2025142$1.1B12,798,2794638389.0%
Q3 2025104$356.5M10,502,1652722350.8%
Q2 202589$148.9M10,437,006821350.0%
Q1 202593$152.2M10,790,279716350.8%
Q4 2024103$174.1M11,197,736830261.0%
Q3 202498$145.6M8,934,6542335173.9%
Q2 202489$142.5M9,740,07888012.6%
Q1 2024127$1.4B39,520,0782838370.5%
Q4 2023127$1.6B40,961,3032732383.0%
Q3 2023110$717.5M39,098,3151340300.0%
Q2 2023107$938.5M36,024,1791537280.4%
Q1 2023110$726.3M38,279,6711636320.6%
Q4 2022116$890.0M35,963,4862250300.4%
Q3 2022103$525.2M28,538,2291546252.5%
Q2 202299$297.5M26,172,1811738220.1%
Q1 202298$551.0M24,598,3701637270.5%
Q4 2021101$1.1B24,641,0663826230.5%
Q3 202166$681.6M20,451,488923190.0%
Q2 202161$563.7M20,484,814142880.0%
Q1 202155$326.3M16,259,697823110.0%
Q4 202051$513.3M15,567,803281070.0%
Q3 202032$248.8M13,823,44332000.0%