Latest Period
Q2 2026
Security Snapshot
Equillium, Inc. - Common Stock, par value $0.0001 per share (EQ) Institutional Ownership
CUSIP: 29446K106
13F Institutional Holders and Ownership History from Q4 2018 to Q2 2026
Institutions Reporting
60
Shares (Excl. Options)
41,595,107
Price
$3.20
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- Security type / class
- Equity / Common Stock, par value $0.0001 per share
- Symbol
- EQ on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 41,595,107
- Total 13F value
- $133,007,116
- Portfolio coverage rank
- 0%
- Share change
- +1,096,441
- Value change
- +$4,195,621
- Number of holders
- 60
- Shares outstanding
- 63,076,923
- SEC-reported price per share
- $2.19
- Insider filing price
- $2.19
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- EQ - Equillium, Inc. - Common Stock, par value $0.0001 per share is tracked under CUSIP 29446K106.
- 60 institutions reported positions in Q2 2026.
- 8 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 49 to 60 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $80,965,178 to $133,007,116.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 60 institutions filings for Q2 2026.
Security key
29446K106
Latest holder period
Q2 2026
13F holders
60
13D/G owners
8
CIK / CUSIP context first
Open Q2 2026 holders
EQ full holder history
Equillium, Inc. SEC filings
Equillium, Inc. company facts
Equillium, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 29446K106:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
8
Security
EQ
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| ADAR1 Capital Management, LLC | 9.9% | 0% | $13,735,808 | +$850,454 | 6,603,754 | +6.6% | ADAR1 Capital Management, LLC | 31 Mar 2026 |
| RA CAPITAL MANAGEMENT, L.P. | 9.9% | $11,275,564 | 6,480,209 | RA Capital Management, L.P. | 13 Mar 2026 | |||
| JANUS HENDERSON GROUP PLC | 10% | 0% | $9,429,020 | 6,083,239 | 0% | JANUS HENDERSON GROUP PLC | 30 Jan 2026 | |
| Decheng Capital Management IV (Cayman), LLC | 8.9% | $10,950,070 | 5,733,021 | Xiangmin Cui | 31 Mar 2026 | |||
| Adage Capital Management, L.P. | 7.2% | -27% | $15,223,216 | -$3,716,550 | 4,832,767 | -20% | Adage Capital Management, L.P. | 30 Jun 2026 |
| Affinity Asset Advisors, LLC | 6.5% | $12,915,000 | 4,100,000 | Affinity Asset Advisors, LLC | 30 Jun 2026 | |||
| Woodline Partners LP | 5.9% | $5,016,841 | 3,508,771 | Woodline Partners LP | 30 Sep 2025 | |||
| Aberdeen Group plc | 5.3% | $6,403,919 | 3,352,837 | Aberdeen Group plc | 01 Apr 2026 |
As of 30 Jun 2026, 60 institutional investors reported holding 41,595,107 shares of Equillium, Inc. - Common Stock, par value $0.0001 per share (EQ). This represents 66% of the company’s total 63,076,923 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
64%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| Jupiter Topco LLC | 10% | 6,494,571 | 0% | 0.01% | $20,685,209 |
| Decheng Capital LLC | 7.1% | 4,447,308 | 0% | 1.9% | $14,231,386 |
| Affinity Asset Advisors, LLC | 6.5% | 4,100,000 | +234% | 0.64% | $13,120,000 |
| ADAR1 Capital Management, LLC | 6% | 3,758,569 | +0.86% | 0.57% | $12,027,421 |
| Aberdeen Group plc | 5.8% | 3,631,659 | +8.3% | 0.02% | $11,621,309 |
| Woodline Partners LP | 5.6% | 3,500,901 | 0% | 0.03% | $11,202,883 |
| RA CAPITAL MANAGEMENT, L.P. | 4.9% | 3,096,336 | 0% | 0.09% | $9,908,275 |
| STEMPOINT CAPITAL LP | 3.2% | 2,016,607 | 1.1% | $6,453,142 | |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.9% | 1,822,812 | +2.1% | 0% | $5,832,998 |
| Eversept Partners, LP | 2.4% | 1,520,824 | +1.5% | 0.27% | $4,866,637 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 2.2% | 1,390,253 | -74% | 0.01% | $4,448,810 |
| RENAISSANCE TECHNOLOGIES LLC | 1% | 637,617 | -2.9% | 0% | $2,040,374 |
| Exome Asset Management LLC | 0.88% | 552,956 | 1.1% | $1,769,459 | |
| DG Capital Management, LLC | 0.73% | 463,396 | 0.51% | $1,482,867 | |
| DIADEMA PARTNERS LP | 0.63% | 400,282 | -7.7% | 0.48% | $1,280,902 |
| GEODE CAPITAL MANAGEMENT, LLC | 0.6% | 381,175 | +0.62% | 0% | $1,220,357 |
| Balyasny Asset Management L.P. | 0.55% | 344,409 | -79% | 0% | $1,102,109 |
| TUDOR INVESTMENT CORP ET AL | 0.51% | 320,100 | +1493% | 0% | $1,024,320 |
| Ikarian Capital, LLC | 0.48% | 303,555 | 0% | 0.16% | $971,376 |
| BlackRock, Inc. | 0.45% | 285,409 | +123% | 0% | $913,308 |
| BOOTHBAY FUND MANAGEMENT, LLC | 0.45% | 284,330 | +205% | 0.02% | $909,856 |
| TWO SIGMA INVESTMENTS, LP | 0.33% | 206,853 | -16% | 0% | $661,930 |
| VANGUARD FIDUCIARY TRUST CO | 0.3% | 190,810 | +0.68% | 0% | $610,592 |
| STATE STREET CORP | 0.28% | 174,060 | 0% | 0% | $556,992 |
| CANTOR FITZGERALD, L. P. | 0.17% | 109,062 | -58% | 0.01% | $348,998 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
31
Latest
Q2 2026
Rows shown
1-25 of 31
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q2 | 41,595,107 | $133,007,116 | +$4,195,621 | $3.20 | 60 |
| 2026 Q1 | 40,498,666 | $80,965,178 | +$10,370,999 | $2.00 | 49 |
| 2025 Q4 | 35,287,993 | $54,667,551 | +$11,793,365 | $1.55 | 36 |
| 2025 Q3 | 29,653,795 | $42,404,231 | +$30,732,112 | $1.43 | 40 |
| 2025 Q2 | 8,709,051 | $2,740,934 | +$38,410 | $0.32 | 27 |
| 2025 Q1 | 8,659,890 | $3,389,920 | -$48,129 | $0.39 | 23 |
| 2024 Q4 | 8,704,762 | $6,515,281 | -$14,852 | $0.75 | 25 |
| 2024 Q3 | 8,717,452 | $7,247,939 | -$126,669 | $0.83 | 24 |
| 2024 Q2 | 8,887,474 | $6,151,871 | -$260,570 | $0.69 | 24 |
| 2024 Q1 | 8,889,978 | $20,532,946 | -$656,679 | $2.31 | 27 |
| 2023 Q4 | 9,477,671 | $6,846,361 | -$1,084,753 | $0.72 | 24 |
| 2023 Q3 | 9,120,275 | $6,748,461 | -$594,650 | $0.74 | 24 |
| 2023 Q2 | 9,919,159 | $7,438,644 | -$617,047 | $0.75 | 26 |
| 2023 Q1 | 10,767,194 | $7,860,967 | -$1,139,318 | $0.73 | 28 |
| 2022 Q4 | 12,212,724 | $13,289,778 | -$1,560,151 | $1.06 | 30 |
| 2022 Q3 | 12,724,210 | $28,246,000 | +$582,554 | $2.22 | 27 |
| 2022 Q2 | 12,629,706 | $25,583,000 | -$257,683 | $2.04 | 22 |
| 2022 Q1 | 12,553,433 | $39,542,748 | +$2,879,189 | $3.15 | 28 |
| 2021 Q4 | 7,190,498 | $27,020,558 | -$550,876 | $3.77 | 24 |
| 2021 Q3 | 7,322,408 | $49,936,820 | +$1,714,580 | $6.82 | 21 |
| 2021 Q2 | 7,108,446 | $41,871,000 | -$4,504,229 | $5.89 | 25 |
| 2021 Q1 | 7,631,947 | $54,570,000 | +$5,601,671 | $7.15 | 31 |
| 2020 Q4 | 6,915,024 | $36,999,000 | -$4,859,884 | $5.35 | 37 |
| 2020 Q3 | 7,698,536 | $44,420,770 | +$25,109,028 | $5.77 | 29 |
| 2020 Q2 | 3,584,557 | $10,574,083 | -$1,494,121 | $2.95 | 19 |