Equillium, Inc. - Common Stock (EQ) Institutional Ownership

13F Institutional Holders and Ownership History from Q4 2018 to Q4 2025

Type / Class
Equity / Common Stock
Symbol
EQ on Nasdaq
Shares outstanding
60,893,283
Price per share
$1.38
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
35,287,993
Total reported value
$54,667,551
% of total 13F portfolios
0%
Share change
+7,459,175
Value change
+$11,793,365
Number of holders
36
Price from insider filings
$1.38
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Equillium, Inc. - Common Stock (EQ) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
ADAR1 Capital Management, LLC 9.9% $8,857,442 6,194,882 ADAR1 Capital Management GP, LLC 30 Sep 2025
JANUS HENDERSON GROUP PLC 10% 0% $9,429,020 6,083,239 0% JANUS HENDERSON GROUP PLC 30 Jan 2026
Adage Capital Management, L.P. 10% $8,596,850 6,012,624 Adage Capital Management, L.P. 30 Sep 2025
Woodline Partners LP 5.9% $5,016,841 3,508,771 Woodline Partners LP 30 Sep 2025

As of 31 Dec 2025, 36 institutional investors reported holding 35,287,993 shares of Equillium, Inc. - Common Stock (EQ). This represents 58% of the company’s total 60,893,283 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of Equillium, Inc. - Common Stock (EQ) together control 58% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
JANUS HENDERSON GROUP PLC 9.6% 5,862,212 0% $9,057,118
ADAR1 Capital Management, LLC 9.2% 5,608,078 +0.86% 0.65% $8,692,521
ADAGE CAPITAL PARTNERS GP, L.L.C. 8.8% 5,329,416 0% 0.01% $8,260,595
Decheng Capital LLC 7.3% 4,447,308 0% 0.93% $6,893,328
Woodline Partners LP 5.7% 3,500,901 -0.22% 0.02% $5,426,397
Aberdeen Group plc 3.9% 2,366,688 +524% 0.01% $3,668,366
Balyasny Asset Management L.P. 3.4% 2,076,250 +3.6% 0.01% $3,218,188
VANGUARD GROUP INC 3.2% 1,920,423 +46% 0% $2,976,656
RENAISSANCE TECHNOLOGIES LLC 1.2% 733,226 +19% 0% $1,136,500
CANTOR FITZGERALD, L. P. 0.92% 562,643 +32% 0.03% $872,097
Hudson Bay Capital Management LP 0.7% 428,538 +54% 0% $664,234
DIADEMA PARTNERS LP 0.57% 347,393 +16% 0.32% $538,459
GEODE CAPITAL MANAGEMENT, LLC 0.57% 345,310 +11% 0% $535,289
TWO SIGMA INVESTMENTS, LP 0.53% 324,610 +144% 0% $503,146
Ikarian Capital, LLC 0.5% 303,555 -8.6% 0.06% $470,510
SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.3% 185,669 0% $287,787
STATE STREET CORP 0.26% 155,420 +13% 0% $240,901
BlackRock, Inc. 0.21% 126,053 0% 0% $195,382
JANE STREET GROUP, LLC 0.17% 100,850 0% $156,317
BOOTHBAY FUND MANAGEMENT, LLC 0.15% 93,211 -24% 0% $144,477
Persistent Asset Partners Ltd 0.15% 93,123 +35% 0.07% $144,341
NORTHERN TRUST CORP 0.15% 88,529 +153% 0% $137,220
ROYAL BANK OF CANADA 0.13% 79,734 0% $124,000
AlphaCore Capital LLC 0.09% 52,345 0% 0% $81,135
TWO SIGMA ADVISERS, LP 0.07% 44,100 0% $68,355

Institutional Holders of Equillium, Inc. - Common Stock (EQ) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
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
2020 Q1 4,090,779 $11,087,152 -$237,339 $2.71 16
2019 Q4 4,173,854 $14,111,189 -$864,475 $3.38 19
2019 Q3 4,297,052 $16,328,592 -$837,267 $3.80 17
2019 Q2 4,329,735 $24,505,860 -$1,886,020 $5.66 22
2019 Q1 4,547,834 $36,383,000 -$9,630 $8.00 30
2018 Q4 4,547,241 $37,105,000 +$36,296,000 $8.16 30