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Equillium Ownership | Who Owns Equillium?

OverviewForecastRevenueFinancialsChart

Equillium Ownership Summary

Equillium is owned by 83.02% institutional investors, 20.94% insiders. Adar1 capital management is the largest institutional shareholder, holding 15.57% of EQ shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 1.60% of its assets in Equillium shares.

EQ Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockEquillium83.02%20.94%-3.96%
SectorHealthcare Stocks 42.54%10.83%46.63%
IndustryBiotech Stocks 45.22%10.75%44.04%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Adar1 capital management5.56M15.57%$7.95M
Adage capital partners gp5.33M14.92%$7.62M
Decheng capital4.45M12.45%$6.36M
Woodline partners lp3.51M9.82%$5.02M
Stempoint capital lp1.91M5.34%$2.73M
Takeda pharmaceutical1.82M5.11%$2.61M
Vanguard group1.31M3.68%$1.88M
Renaissance614.92K1.72%$879.34K
Cota capital management562.28K1.58%$177.23K
Cantor fitzgerald, l. p.425.00K1.19%$607.75K

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Cota capital management562.28K100.00%$177.23K
Takeda pharmaceutical1.82M15.94%$2.61M
Decheng capital4.45M1.11%$6.36M
Adar1 capital management5.56M0.75%$7.95M
Stempoint capital lp1.91M0.55%$2.73M
Diadema partners lp300.00K0.11%$429.00K
Persistent asset partners68.99K0.07%$98.66K
Ikarian capital332.30K0.05%$475.19K
Woodline partners lp3.51M0.02%$5.02M
Adage capital partners gp5.33M0.01%$7.62M

Top Buyers

HolderShares% AssetsChange
Adar1 capital management5.56M0.75%5.56M
Adage capital partners gp5.33M0.01%5.33M
Woodline partners lp3.51M0.02%3.51M
Stempoint capital lp1.91M0.55%1.91M
Vanguard group1.31M-489.86K

Top Sellers

HolderShares% AssetsChange
Ubs group28.03K--55.52K
American century companies---40.33K
Integrated wealth concepts---40.00K
Dcf advisers---39.49K
Acadian asset management---39.48K

New Positions

HolderShares% AssetsChangeValue
Adar1 capital management5.56M0.75%5.56M$7.95M
Adage capital partners gp5.33M0.01%5.33M$7.62M
Woodline partners lp3.51M0.02%3.51M$5.02M
Stempoint capital lp1.91M0.55%1.91M$2.73M
Cantor fitzgerald, l. p.425.00K0.01%425.00K$607.75K

Sold Out

HolderChange
Jpmorgan chase-1.11K
Lazard asset management-1.59K
Citadel advisors-10.00K
Ci private wealth-11.00K
Tritonpoint wealth-13.50K

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Sep 30, 20254359.26%29,653,795240.49%8313.86%30114.29%6-
Jun 30, 20252717.39%8,709,05238.84%247.88%1475.00%620.00%
Mar 31, 202525-3.85%8,659,891-0.54%244.03%8-11.11%5-16.67%
Dec 31, 202412-47.83%3,030,505-56.03%82.26%6-33.33%2-33.33%
Sep 30, 202423-8.00%6,892,475-2.41%194.85%9-18.18%3-25.00%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
Vanguard US Total Market Shares ETF570.84K1.60%-
Vanguard Total Stock Mkt Idx Inv558.63K1.56%-12.21K
Vanguard Institutional Extnd Mkt Idx Tr169.98K0.48%-77.45K
abrdn Life Sciences Investors226.20K0.38%226.20K
Mandarine Global Microcap G EUR67.50K0.19%7.50K
Fidelity Extended Market Index99.14K0.17%-698.00
PGIM Quantitative Solutions US Micro Cap39.20K0.11%39.20K
iShares Micro-Cap ETF30.43K0.09%-
Fidelity Total Market Index35.24K0.06%-
Vanguard Instl Ttl Stck Mkt Idx Tr17.86K0.05%-

Recent Insider Transactions

DateNameRoleActivityValue
Nov 25, 2025Zedelmayer Christine Sr. Vice President and COOSell$7.60K
Nov 25, 2025Zedelmayer Christine Sr. Vice President and COOSell$98.00
Jan 23, 2025Keyes Jason A Chief Financial OfficerSell$6.50K
Nov 14, 2024Keyes Jason A Chief Financial OfficerSell$7.00K
Oct 28, 2024Zedelmayer Christine Sr. Vice President and COOSell$18.75K

Insider Transactions Trends

DateBuySell
2025 Q4-2
2025 Q3--
2025 Q2--
2025 Q1-1
2024 Q4-4

EQ Ownership FAQ

Who Owns Equillium?

Equillium shareholders are primarily institutional investors at 83.02%, followed by 20.94% insiders and -3.96% retail investors. The average institutional ownership in Equillium's industry, Biotech Stocks , is 45.22%, which Equillium exceeds.

Who owns the most shares of Equillium?

Equillium’s largest shareholders are Adar1 capital management (5.56M shares, 15.57%), Adage capital partners gp (5.33M shares, 14.92%), and Decheng capital (4.45M shares, 12.45%). Together, they hold 42.94% of Equillium’s total shares outstanding.

Does Blackrock own Equillium?

BlackRock is not among the top 10 institutional shareholders of Equillium.

Who is Equillium’s biggest shareholder by percentage of total assets invested?

Cota capital management is Equillium’s biggest shareholder by percentage of total assets invested, with 100.00% of its assets in 562.28K Equillium shares, valued at 177.23K$.

Who is the top mutual fund holder of Equillium shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of Equillium shares, with 1.60% of its total shares outstanding invested in 570.84K Equillium shares.

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