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DaveManuel.com · Institutional Ownership · Who Owns It

XBIOTECH INC (XBIT)

Institutional ownership reported to the SEC as of Q2 2026, across 32 quarters.

39
Reporting holders
$4.9M
Reported value
6.5%
Of shares outstanding
5.0%
Calls
2.3%
Puts
-1
Holder change

Institutions report 1,981,180 shares against 30,487,731 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.

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
BlackRock, Inc.$738.6K321,1460.00%8q+9.6%+$64.5K
GEODE CAPITAL MANAGEMENT, LLC$492.8K214,1160.00%31q-7.3%-$38.9K
VANGUARD CAPITAL MANAGEMENT LLC$460.4K200,1820.00%2qHELD
RBF Capital, LLC$456.6K198,5010.02%5qHELD
MORGAN STANLEY$340.1K147,8800.00%28q-10.7%-$40.7K
BRIDGEWAY CAPITAL MANAGEMENT, LLC$226.4K98,4470.00%17qHELD
VANGUARD FIDUCIARY TRUST CO$212.4K92,3650.00%2q+0.9%+$1.8K
JANE STREET GROUP, LLC$198.2K
incl. $171.8K options CALL
11,4760.00%5q-80.9%-$839.8K
MILLENNIUM MANAGEMENT LLC$182.5K79,3300.00%20q-24.8%-$60.3K
SUSQUEHANNA INTERNATIONAL GROUP, LLP$170.0K CALL+PUToptions only0.00%2qOPTIONS
STATE STREET CORP$167.9K73,0060.00%31qHELD
NORTHERN TRUST CORP$152.4K66,2580.00%31q-12.9%-$22.6K
Empowered Funds, LLC$137.0K59,5470.00%13qHELD
RENAISSANCE TECHNOLOGIES LLC$95.8K41,6630.00%2q+85.7%+$44.2K
Bank of New York Mellon Corp$90.5K39,3550.00%31qHELD
DIMENSIONAL FUND ADVISORS LP$83.0K36,0530.00%31qHELD
Squarepoint Ops LLC$79.9K34,7570.00%5q-15.7%-$14.9K
Qube Research & Technologies Ltd$77.2K33,5700.00%5q+79.6%+$34.2K
GSA CAPITAL PARTNERS LLP$71.0K30,6540.00%newNEW
CITADEL ADVISORS LLC$67.1K29,1920.00%newNEW
Connor, Clark & Lunn Investment Management Ltd.$64.3K27,9430.00%18q-2.5%-$1.7K
BNP PARIBAS FINANCIAL MARKETS$60.9K26,4640.00%31q-2.6%-$1.6K
NATIONAL BANK OF CANADA /FI/$57.5K25,0000.00%11qHELD
BANK OF AMERICA CORP /DE/$54.7K23,7890.00%31q-35.2%-$29.7K
AMERICAN CENTURY COMPANIES INC$42.3K18,3810.00%9q-2.6%-$1.1K
Thomasville National Bank$30.7K13,3500.00%20qHELD
XTX Topco Ltd$30.1K13,0800.00%5q-26.9%-$11.1K
Pinnacle Financial Partners, Inc.$27.1K11,7960.00%3qHELD
Vanguard Global Advisers, LLC$16.1K7,0090.00%2qHELD
UBS Group AG$11.6K5,0350.00%28qHELD
SIMPLEX TRADING, LLC$9.9K CALL+PUToptions only0.00%5qOPTIONS
GROUP ONE TRADING LLC$6.4K PUToptions only0.00%2qOPTIONS
ROYAL BANK OF CANADA$3.0K1,2060.00%2q+1.4%
JONES FINANCIAL COMPANIES LLLP$8623700.00%7qHELD
JPMORGAN CHASE & CO$224960.00%13qHELD
BARCLAYS PLC$216940.00%newNEW
SBI Securities Co., Ltd.$85370.00%7qHELD
Larson Financial Group LLC$48210.00%5qHELD
Caitong International Asset Management Co., Ltd$25110.00%2qHELD

What the company announced

Form 8-K filings from the last 120 days, showing only the items worth a reader's attention. Earnings releases, exhibit attachments and general disclosures are filed constantly and are left out. Filed is when the SEC received it; event is the date the company says the thing happened.

FiledEvent dateWhatSource
2026-10-262026-10-23Directors or officers departed or appointedfiling

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.

Ten percent owners and entities

Usually an institution that crossed a reporting threshold, or a company taking a strategic stake, rather than an individual with a view.

DateInsiderRoleSideSharesValue
2026-10-26SIMARD JOHNDirector, 10% ownerBought368,524$711.3K

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 20262$112510100.0%
Q2 202639$4.9M1,981,18035117.3%
Q1 202640$4.9M1,992,78387113.6%
Q4 202540$6.0M2,493,58259130.8%
Q3 202547$7.8M2,937,51348210.0%
Q2 202553$10.2M3,418,3591612190.0%
Q1 202554$14.5M4,477,93288210.0%
Q4 202453$18.7M4,716,0231017110.5%
Q3 202450$37.6M4,860,163102260.0%
Q2 202446$23.3M4,524,388121790.3%
Q1 202445$35.0M4,291,348101690.2%
Q4 202339$14.2M3,557,41951570.0%
Q3 202337$14.0M3,395,0543990.2%
Q2 202339$20.7M3,483,471811100.3%
Q1 202337$8.7M2,516,05428130.4%
Q4 202240$9.7M2,757,47225170.1%
Q3 202243$11.1M3,057,60269150.0%
Q2 202250$18.9M3,353,2661316170.2%
Q1 202259$147.0M17,009,054912190.0%
Q4 202160$192.7M17,211,726521140.6%
Q3 202163$282.6M21,786,03492790.2%
Q2 202157$283.0M17,020,069218230.4%
Q1 202165$298.5M17,305,829920190.5%
Q4 202068$283.6M17,979,542717240.8%
Q3 202066$166.8M8,508,194917282.7%
Q2 202063$124.8M8,864,9691723162.6%
Q1 202059$71.2M6,481,1651023263.8%
Q4 201958$233.6M12,449,3892024110.5%
Q3 201947$53.0M4,960,349122742.0%
Q2 201941$36.5M4,539,4621711105.6%
Q1 201936$30.5M2,608,01618785.8%
Q4 201823$6.8M1,253,8080005.7%