HolderBook

EQUILLIUM INC (EQ)

Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.

62
Reporting holders
$135.4M
Reported value
66.2%
Of shares outstanding
0.3%
Calls
0.6%
Puts
+12
Holder change

Institutions report 41,977,993 shares against 63,408,082 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
Jupiter Topco LLC$20.7M6,494,5710.01%newFIRST
Decheng Capital LLC$14.2M4,447,3081.94%11qHELD
Affinity Asset Advisors, LLC$13.1M4,100,0000.59%2q+234.3%+$9.2M
ADAR1 Capital Management, LLC$12.0M3,758,5690.55%4q+0.9%+$102.1K
Aberdeen Group plc$11.6M3,631,6590.02%4q+8.3%+$892.2K
Woodline Partners LP$11.2M3,500,9010.03%4qHELD
RA CAPITAL MANAGEMENT, L.P.$9.9M3,096,3360.09%2qHELD
STEMPOINT CAPITAL LP$6.5M2,016,6071.11%newNEW
VANGUARD CAPITAL MANAGEMENT LLC$5.8M1,822,8120.00%2q+2.1%+$122.7K
Eversept Partners, LP$4.9M1,520,8240.25%2q+1.5%+$69.9K
ADAGE CAPITAL PARTNERS GP, L.L.C.$4.4M1,390,2530.01%4q-73.9%-$12.6M
RENAISSANCE TECHNOLOGIES LLC$2.0M637,6170.00%17q-2.9%-$61.9K
Exome Asset Management LLC$1.8M552,9561.09%newNEW
DG Capital Management, LLC$1.5M463,3960.31%newNEW
DIADEMA PARTNERS LP$1.3M400,2820.16%4q-7.7%-$107.4K
GEODE CAPITAL MANAGEMENT, LLC$1.2M381,1750.00%24q+0.6%+$7.6K
STATE STREET CORP$1.1M348,1200.00%21q+100.0%+$557.0K
Balyasny Asset Management L.P.$1.1M344,4090.00%4q-79.0%-$4.1M
TUDOR INVESTMENT CORP ET AL$1.0M320,1000.00%3q+1492.5%+$960.0K
Ikarian Capital, LLC$971.4K303,5550.10%4qHELD
BlackRock, Inc.$913.3K285,4090.00%4q+123.2%+$504.2K
BOOTHBAY FUND MANAGEMENT, LLC$909.9K284,3300.01%4q+205.0%+$611.6K
CITADEL ADVISORS LLC$742.8K199,3240.00%6q+25.6%+$151.3K
CANTOR FITZGERALD, L. P.$698.0K218,1240.00%4q-17.0%-$142.5K
TWO SIGMA INVESTMENTS, LP$661.9K206,8530.00%4q-16.0%-$125.8K
SUSQUEHANNA INTERNATIONAL GROUP, LLP$657.0K21,2110.00%5q-81.6%-$2.9M
VANGUARD FIDUCIARY TRUST CO$610.6K190,8100.00%2q+0.7%+$4.1K
JANE STREET GROUP, LLC$595.2K95,2140.00%4q-57.0%-$787.9K
Persistent Asset Partners Ltd$326.4K102,0100.10%4q-7.4%-$25.9K
Soleus Capital Management, L.P.$288.0K90,0000.01%newNEW
RAYMOND JAMES FINANCIAL INC$240.8K75,2600.00%newNEW
NORTHERN TRUST CORP$229.0K71,5590.00%24q+2.0%+$4.5K
SIMPLEX TRADING, LLC$218.6Koptions only0.00%4qOPTIONS
AlphaCore Capital LLC$167.5K52,3450.00%5qHELD
ExodusPoint Capital Management, LP$141.4K44,1890.00%newNEW
MILLENNIUM MANAGEMENT LLC$137.1K42,8380.00%newNEW
XTX Topco Ltd$125.6K39,2630.00%2q-61.9%-$204.3K
Invesco Ltd.$116.1K36,2910.00%newNEW
BARCLAYS PLC$112.0K35,0000.00%newNEW
Jefferies Financial Group Inc.$109.1K34,1000.00%newNEW
High Net Worth Advisory Group LLC$107.2K33,5000.02%newNEW
CITIGROUP INC$104.6K32,6950.00%2q+3269400.0%+$104.6K
MORGAN STANLEY$95.6K29,8870.00%7q+61.4%+$36.4K
Quadrature Capital Ltd$91.7K28,6550.00%2qHELD
HRT FINANCIAL LP$86.0K26,9780.00%newNEW
AMERICAN CENTURY COMPANIES INC$82.9K25,8950.00%newNEW
China Universal Asset Management Co., Ltd.$80.0K25,0000.00%newNEW
UBS Group AG$73.4K22,9320.00%9q+66.9%+$29.4K
Chung Wu Investment Group, LLC$52.8K16,5000.03%newNEW
DIMENSIONAL FUND ADVISORS LP$49.1K15,3330.00%2qHELD
Coastal Bridge Advisors, LLC$48.0K15,0000.00%newNEW
Apollon Wealth Management, LLC$44.4K13,8750.00%5qHELD
Focus Partners Wealth$41.6K13,0130.00%newNEW
TWO SIGMA SECURITIES, LLC$34.5K10,7970.00%newNEW
Vanguard Global Advisers, LLC$18.6K5,8260.00%2qHELD
GROUP ONE TRADING LLC$8.8K2,2380.00%2q-82.2%-$40.4K
Tower Research Capital LLC (TRC)$7.6K2,3850.00%7q+84.7%+$3.5K
WELLS FARGO & COMPANY/MN$3.2K1,0000.00%22q-50.0%-$3.2K
JONES FINANCIAL COMPANIES LLLP$1.5K5000.00%3q+100.0%
Caitong International Asset Management Co., Ltd$7492340.00%2q+917.4%
MERCER GLOBAL ADVISORS INC /ADV$3261020.00%newNEW
SBI Securities Co., Ltd.$218680.00%7q-47.3%

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
2026-08-1313GAffinity Asset Advisors, LLCwith 1 co-filers6.5%
2026-08-1213G/AAdage Capital Management, L.P.with 2 co-filers7.2%

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
2026-06-04Connelly StephenPresident and CSOSold200,000$632.8K
2026-05-28Zedelmayer ChristineSr. Vice President and COOSold86,012$240.7K ×3
2026-05-28Tom PennyPrincipal Accounting OfficerSold65,000$191.8K

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
Q2 202662$135.4M41,977,9931919130.9%
Q1 202650$81.8M40,499,6661610101.0%
Q4 202539$55.4M35,287,99361571.4%
Q3 202543$42.7M29,653,79524770.8%
Q2 202526$2.6M8,146,7737560.1%
Q1 202523$3.2M8,097,6122550.3%
Q4 202425$6.1M8,144,5757260.1%
Q3 202425$7.2M8,717,5996340.0%
Q2 202424$6.2M8,987,2066630.5%
Q1 202427$21.0M9,039,7097570.4%
Q4 202325$7.1M9,827,7023450.2%
Q3 202325$6.8M9,120,2752450.3%
Q2 202326$7.5M9,919,1594450.3%
Q1 202329$7.9M10,767,1944290.2%
Q4 202230$13.4M12,212,72461020.8%
Q3 202230$28.9M12,900,5206711.8%
Q2 202225$25.6M12,631,0432350.1%
Q1 202229$39.7M12,730,1255680.1%
Q4 202124$27.1M7,190,4985460.3%
Q3 202121$49.9M7,322,5204530.0%
Q2 202126$41.9M7,108,9005750.0%
Q1 202133$54.6M7,632,2227690.0%
Q4 202039$37.0M6,915,48619650.0%
Q3 202031$44.4M7,698,69819530.0%
Q2 202020$10.6M3,584,8574380.0%
Q1 202017$17.0M6,289,1171350.0%
Q4 201921$14.1M4,174,5545540.0%
Q3 201919$16.3M4,297,5412580.0%
Q2 201923$24.5M4,330,0646490.0%
Q1 201930$36.4M4,548,15249110.0%
Q4 201830$37.2M4,564,8493000.0%