Equillium Ownership | Who Owns Equillium?
Equillium Ownership Summary
Equillium is owned by 6.21% institutional investors, 16.41% insiders, and 77.38% retail investors. Adar1 capital management is the largest institutional shareholder, holding 15.57% of EQ shares. abrdn Life Sciences Investors is the top mutual fund, with 5.30% of its assets in Equillium shares.
EQ Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Equillium | 6.21% | 16.41% | 77.38% |
| Sector | Healthcare Stocks | 35.34% | 11.88% | 52.77% |
| Industry | Biotech Stocks | 35.37% | 11.83% | 52.80% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Adar1 capital management | 5.56M | 15.57% | $7.95M |
| Janus henderson group | 6.49M | 7.07% | $12.96M |
| Adage capital partners gp | 5.33M | 5.80% | $10.66M |
| Vanguard group | 1.92M | 5.38% | $2.98M |
| Stempoint capital lp | 1.91M | 5.34% | $2.73M |
| Takeda pharmaceutical | 1.82M | 5.11% | $2.61M |
| Decheng capital | 4.45M | 4.84% | $8.89M |
| Woodline partners lp | 3.50M | 3.81% | $7.00M |
| Abrdn | 3.35M | 3.65% | $6.71M |
| Ra capital management | 3.10M | 3.37% | $6.19M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Cota capital management | 562.28K | 100.00% | $177.23K |
| Takeda pharmaceutical | 1.82M | 15.94% | $2.61M |
| Decheng capital | 4.45M | 1.34% | $8.89M |
| Adar1 capital management | 5.56M | 0.75% | $7.95M |
| Stempoint capital lp | 1.91M | 0.55% | $2.73M |
| Eversept partners, lp | 1.50M | 0.16% | $3.00M |
| Diadema partners lp | 433.84K | 0.15% | $867.69K |
| Affinity asset advisors | 1.23M | 0.13% | $2.45M |
| Persistent asset partners | 110.12K | 0.08% | $220.23K |
| Ra capital management | 3.10M | 0.07% | $6.19M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Adar1 capital management | 5.56M | 0.75% | 5.56M |
| Ra capital management | 3.10M | 0.07% | 3.10M |
| Stempoint capital lp | 1.91M | 0.55% | 1.91M |
| Eversept partners, lp | 1.50M | 0.16% | 1.50M |
| Affinity asset advisors | 1.23M | 0.13% | 1.23M |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Balyasny asset management | 1.64M | 0.00% | -437.48K |
| Cantor fitzgerald, l. p. | 262.64K | 0.01% | -300.00K |
| Royal bank of canada | - | - | -79.73K |
| Two sigma investments, lp | 246.17K | 0.00% | -78.44K |
| Renaissance | 656.96K | 0.00% | -76.26K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Adar1 capital management | 5.56M | 0.75% | 5.56M | $7.95M |
| Ra capital management | 3.10M | 0.07% | 3.10M | $6.19M |
| Stempoint capital lp | 1.91M | 0.55% | 1.91M | $2.73M |
| Eversept partners, lp | 1.50M | 0.16% | 1.50M | $3.00M |
| Affinity asset advisors | 1.23M | 0.13% | 1.23M | $2.45M |
Sold Out
| Holder | Change |
|---|---|
| Rise advisors | -263.00 |
| Jpmorgan chase | -1.11K |
| Lazard asset management | -1.59K |
| Simplex trading | -1.92K |
| Coastal bridge advisors | -10.50K |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 13 | -68.29% | 5,708,124 | -83.82% | 6 | 0.06% | 10 | -54.55% | 1 | -88.89% |
| Dec 31, 2025 | 16 | -62.79% | 10,727,973 | -63.82% | 30 | 0.44% | 8 | -73.33% | 2 | -66.67% |
| Sep 30, 2025 | 43 | 59.26% | 29,653,795 | 240.49% | 83 | 13.86% | 30 | 114.29% | 6 | - |
| Jun 30, 2025 | 27 | 17.39% | 8,709,052 | 38.84% | 24 | 7.88% | 14 | 75.00% | 6 | 20.00% |
| Mar 31, 2025 | 25 | -3.85% | 8,659,891 | -0.54% | 24 | 4.03% | 8 | -11.11% | 5 | -16.67% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| abrdn Life Sciences Investors | 3.35M | 5.30% | - |
| Vanguard Total Stock Mkt Idx Inv | 1.40M | 2.28% | - |
| Vanguard US Total Market Shares ETF | 570.84K | 1.60% | - |
| Vanguard Institutional Extnd Mkt Idx Tr | 345.77K | 0.56% | 59.12K |
| Fidelity Extended Market Index | 174.78K | 0.28% | 10.36K |
| Blackrock Extended Mkt Fund CF | 126.05K | 0.21% | - |
| Extended Equity Market Fund E | 126.05K | 0.20% | - |
| Extended Equity Market Fund B | 126.05K | 0.20% | - |
| Mandarine Global Microcap G EUR | 67.50K | 0.19% | 7.50K |
| BlackRock Extended Equity Market Fund K | 107.33K | 0.17% | -786.00 |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Mar 13, 2026 | Zedelmayer Christine | Sr. Vice President and COO | Sell | $300.82K |
| Feb 19, 2026 | Zedelmayer Christine | Sr. Vice President and COO | Sell | $194.84K |
| Feb 19, 2026 | Zedelmayer Christine | Sr. Vice President and COO | Sell | $133.26K |
| Mar 09, 2026 | Zedelmayer Christine | Sr. Vice President and COO | Sell | $362.44K |
| Feb 19, 2026 | Zedelmayer Christine | Sr. Vice President and COO | Sell | $133.26K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q1 | - | 6 |
| 2025 Q4 | - | 5 |
| 2025 Q3 | - | - |
| 2025 Q2 | - | - |
| 2025 Q1 | - | 1 |
EQ Ownership FAQ
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