Vault-13

EQUILLIUM INC EQ

COM · Common Stock · CUSIP 29446K106

60 institutional holders +10 vs Q1 2026
41,704,16941.7m shares reported held*
65.8% of all shares outstanding*
$133.4mreported value*
18 new 17 added 14 reduced 8 sold out net bought ≈ $3.9m (+1.2m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 63.4m as of 2026-08-07, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $3.20. Options: 3 managers hold calls ($371.8k notional), 5 hold puts ($780.5k).

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

0204060Q3 22: 31Q4 22: 31Q1 23: 29Q2 23: 28Q3 23: 26Q4 23: 26Q1 24: 29Q2 24: 26Q3 24: 27Q4 24: 27Q1 25: 25Q2 25: 28Q3 25: 40Q4 25: 36Q1 26: 50Q2 26: 6060Q3 22Q3 23Q3 24Q3 25Q2 26
Numbers
QuarterHolders
Q3 202231
Q4 202231
Q1 202329
Q2 202328
Q3 202326
Q4 202326
Q1 202429
Q2 202426
Q3 202427
Q4 202427
Q1 202525
Q2 202528
Q3 202540
Q4 202536
Q1 202650
Q2 202660

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
40040Q3 24: 9 bought or addedQ3 24: 10 cut or sold outQ4 24: 8 bought or addedQ4 24: 12 cut or sold outQ4 24Q1 25: 8 bought or addedQ1 25: 10 cut or sold outQ2 25: 12 bought or addedQ2 25: 8 cut or sold outQ2 25Q3 25: 28 bought or addedQ3 25: 13 cut or sold outQ4 25: 23 bought or addedQ4 25: 18 cut or sold outQ4 25Q1 26: 25 bought or addedQ1 26: 15 cut or sold outQ2 26: 35 bought or addedQ2 26: 22 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q3 2024910
Q4 2024812
Q1 2025810
Q2 2025128
Q3 20252813
Q4 20252318
Q1 20262515
Q2 20263522

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$200k$400k$600k$800kQ3 25 calls: $324.3kQ3 25 puts: $12.0kQ3 25P/C 0.04Q4 25 calls: $648.7kQ4 25 puts: $123.8kQ4 25P/C 0.19Q1 26 calls: $611.4kQ1 26 puts: $239.8kQ1 26P/C 0.39Q2 26 calls: $371.8kQ2 26 puts: $780.5kQ2 26P/C 2.10
Numbers
QuarterCallsPutsP/C
Q3 2025$324.3k$12.0k0.04
Q4 2025$648.7k$123.8k0.19
Q1 2026$611.4k$239.8k0.39
Q2 2026$371.8k$780.5k2.10

Biggest buyers

Affinity Asset Advisors, LLC Added +2,873,690+2.9m
STEMPOINT CAPITAL LP New +2,016,607+2.0m
Exome Asset Management LLC New +552,956+553.0k
DG Capital Management, LLC New +463,396+463.4k
TUDOR INVESTMENT CORP ET AL Added +300,000+300.0k
Aberdeen Group plc Added +278,822+278.8k
BOOTHBAY FUND MANAGEMENT, LLC Added +191,119+191.1k
BlackRock, Inc. Added +157,557+157.6k
Soleus Capital Management, L.P. New +90,000+90.0k
RAYMOND JAMES FINANCIAL INC New +75,260+75.3k

Biggest sellers

ADAGE CAPITAL PARTNERS GP, L.L.C. Reduced -3,939,163-3.9m
Balyasny Asset Management L.P. Reduced -1,294,361-1.3m
Hudson Bay Capital Management LP Sold out -428,538-428.5k
JANE STREET GROUP, LLC Reduced -126,027-126.0k
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced -94,324-94.3k
XTX Topco Ltd Reduced -63,842-63.8k
CITADEL ADVISORS LLC Reduced -59,071-59.1k
MARSHALL WACE, LLP Sold out -57,632-57.6k
OMERS ADMINISTRATION Corp Sold out -50,037-50.0k
CANTOR FITZGERALD, L. P. Reduced -44,519-44.5k

Biggest calls

JANE STREET GROUP, LLC New $141.1k44.1k shares
SIMPLEX TRADING, LLC Reduced $119.7k37.4k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $111.0k34.7k shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $478.1k149.4k shares
JANE STREET GROUP, LLC New $149.4k46.7k shares
SIMPLEX TRADING, LLC Reduced $98.9k30.9k shares
CITADEL ADVISORS LLC Reduced $52.5k16.4k shares
GROUP ONE TRADING LLC Reduced $1.6k500 shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
JANUS HENDERSON GROUP PLC 13G · institution no change · filed 2026-02-06 10.0% no change 6.1m≈ $19.5m 2026-02-06
ADAR1 Capital Management, LLC 13G · institution no change · filed 2026-05-15 9.9% no change 6.6m≈ $21.1m 2026-05-15
RA CAPITAL MANAGEMENT, L.P. 13G · passive investor new · filed 2026-03-20 9.9% new 6.5m≈ $20.7m 2026-03-20
Decheng Capital Management IV (Cayman), LLC 13G · passive investor filed 2026-05-15 8.9% 5.7m≈ $18.3m 2026-05-15
Adage Capital Management, L.P. 13G · institution -2.7 pts · filed 2026-08-12 7.2% -2.7 pts 4.8m≈ $15.5m 2026-08-12
Affinity Asset Advisors, LLC 13G · institution new · filed 2026-08-13 6.5% new 4.1m≈ $13.1m 2026-08-13
Woodline Partners LP 13G · institution new · filed 2025-11-14 5.9% new 3.5m≈ $11.2m 2025-11-14
Aberdeen Group plc 13G · institution new · filed 2026-05-07 5.3% new 3.4m≈ $10.7m 2026-05-07

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
404Q4 24: 0 buyingQ4 24: 3 sellingQ1 25: 0 buyingQ1 25: 1 sellingQ1 25Q2 25: 0 buyingQ2 25: 0 sellingQ3 25: 0 buyingQ3 25: 0 sellingQ3 25Q4 25: 0 buyingQ4 25: 1 sellingQ1 26: 0 buyingQ1 26: 2 sellingQ1 26Q2 26: 0 buyingQ2 26: 3 sellingQ3 26: 0 buyingQ3 26: 0 sellingQ3 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20240—3$30.1k$30.1k
Q1 20250—1$6.5k$6.5k
Q2 20250—0——
Q3 20250—0——
Q4 20250—1$205.2k$205.2k
Q1 20260—2$999.6k$999.6k
Q2 20260—3$1.2m$501.7k
Q3 20260—0——
DateInsiderTradeSharesPrice ValueTheir holding
2026-06-05 Connelly Stephen President and CSO Sold 30,975 $2.94 $91.1k31.0k shares -4%
2026-06-05 Zedelmayer Christine Sr. Vice President and COO Sold plan 14,584 $2.93 $42.7k14.6k shares -19%
2026-06-04 Connelly Stephen President and CSO Sold 200,000 $3.16 $632.0k200.0k shares -20%
2026-05-28 Zedelmayer Christine Sr. Vice President and COO Sold plan 86,012 $2.80 $240.7k86.0k shares -58%
2026-05-28 Tom Penny Principal Accounting Officer Sold plan 65,000 $2.95 $191.8k65.0k shares -100%
2026-05-27 Zedelmayer Christine Sr. Vice President and COO Sold plan 9,821 $2.70 $26.5k9.8k shares -14%

Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Jupiter Topco LLC 0.01% of their portfolio NEW YORK, NY 6,494,5716.5m $20.7m $20.7m 0.01% First filing
2 Decheng Capital LLC 1.94% of their portfolio MENLO PARK, CA 4,447,3084.4m $14.2m $14.2m 1.94% Unchanged
3 Affinity Asset Advisors, LLC 0.64% of their portfolio NEW YORK, NY 4,100,0004.1m $13.1m $13.1m 0.64% Added +2.9m +2,873,690
4 ADAR1 Capital Management, LLC 0.57% of their portfolio AUSTIN, TX 3,758,5693.8m $12.0m $12.0m 0.57% Added +31.9k +31,910
5 Aberdeen Group plc 0.02% of their portfolio EDINBURGH, X0 3,631,6593.6m $11.6m $11.6m 0.02% Added +278.8k +278,822
6 Woodline Partners LP 0.03% of their portfolio San Francisco, CA 3,500,9013.5m $11.2m $11.2m 0.03% Unchanged
7 RA CAPITAL MANAGEMENT, L.P. 0.09% of their portfolio BOSTON, MA 3,096,3363.1m $9.9m $9.9m 0.09% Unchanged
8 STEMPOINT CAPITAL LP 1.12% of their portfolio NEW YORK, NY 2,016,6072.0m $6.5m $6.5m 1.12% New
9 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 1,822,8121.8m $5.8m $5.8m 0.00% Added +38.3k +38,340
10 Eversept Partners, LP 0.27% of their portfolio NEW YORK, NY 1,520,8241.5m $4.9m $4.9m 0.27% Added +21.8k +21,831
11 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.01% of their portfolio Boston, MA 1,390,2531.4m $4.4m $4.4m 0.01% Reduced -3.9m -3,939,163
12 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 637,617637.6k $2.0m $2.0m 0.00% Reduced -19.3k -19,347
13 Exome Asset Management LLC 1.09% of their portfolio NEW YORK, NY 552,956553.0k $1.8m $1.8m 1.09% New
14 DG Capital Management, LLC 0.51% of their portfolio NEW YORK, NY 463,396463.4k $1.5m $1.5m 0.51% New
15 DIADEMA PARTNERS LP 0.45% of their portfolio MORRISTOWN, NJ 400,282400.3k $1.3m $1.3m 0.45% Reduced -33.6k -33,562
16 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 381,175381.2k $1.2m $1.2m 0.00% Added +2.4k +2,362
17 Balyasny Asset Management L.P. 0.00% of their portfolio Chicago, IL 344,409344.4k $1.1m $1.1m 0.00% Reduced -1.3m -1,294,361
18 TUDOR INVESTMENT CORP ET AL 0.00% of their portfolio STAMFORD, CT 320,100320.1k $1.0m $1.0m 0.00% Added +300.0k +300,000
19 Ikarian Capital, LLC 0.16% of their portfolio DALLAS, TX 303,555303.6k $971.4k $971.4k 0.16% Unchanged
20 BlackRock, Inc. 0.00% of their portfolio New York, NY 285,409285.4k $913.3k $913.3k 0.00% Added +157.6k +157,557
21 BOOTHBAY FUND MANAGEMENT, LLC 0.02% of their portfolio NEW YORK, NY 284,330284.3k $909.9k $909.9k 0.02% Added +191.1k +191,119
22 CANTOR FITZGERALD, L. P. 0.01% of their portfolio NEW YORK, NY 218,124218.1k $698.0k $698.0k 0.01% Reduced -44.5k -44,519
23 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 206,853206.9k $661.9k $661.9k 0.00% Reduced -39.3k -39,320
24 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 190,810190.8k $610.6k $610.6k 0.00% Added +1.3k +1,280
25 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 174,060174.1k $557.0k $557.0k 0.00% Unchanged
26 Persistent Asset Partners Ltd 0.10% of their portfolio HONG KONG, K3 102,010102.0k $326.4k $326.4k 0.10% Reduced -8.1k -8,107
27 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 99,66299.7k $318.9k $318.9k 0.00% Reduced -59.1k -59,071
28 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 95,21495.2k $304.7k $304.7k 0.00% Reduced -126.0k -126,027
29 Soleus Capital Management, L.P. 0.01% of their portfolio GREENWICH, CT 90,00090.0k $288.0k $288.0k 0.01% New
30 RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio ST. PETERSBURG, FL 75,26075.3k $240.8k $240.8k 0.00% New
31 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 71,55971.6k $229.0k $229.0k 0.00% Added +1.4k +1,401
32 AlphaCore Capital LLC 0.00% of their portfolio LA JOLLA, CA 52,34552.3k $167.5k $167.5k 0.00% Unchanged
33 ExodusPoint Capital Management, LP 0.00% of their portfolio NEW YORK, NY 44,18944.2k $141.4k $141.4k 0.00% New
34 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 42,83842.8k $137.1k $137.1k 0.00% New
35 XTX Topco Ltd 0.00% of their portfolio LONDON, X0 39,26339.3k $125.6k $125.6k 0.00% Reduced -63.8k -63,842
36 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 36,29136.3k $116.1k $116.1k 0.00% New
37 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 35,00035.0k $112.0k $112.0k 0.00% New
38 Jefferies Financial Group Inc. 0.00% of their portfolio NEW YORK, NY 34,10034.1k $109.1k $109.1k 0.00% New
39 High Net Worth Advisory Group LLC 0.02% of their portfolio NAPLES, FL 33,50033.5k $107.2k $107.2k 0.02% New
40 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 32,69532.7k $104.6k $104.6k 0.00% Added +32.7k +32,694
41 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 29,88729.9k $95.6k $95.6k 0.00% Added +11.4k +11,367
42 Quadrature Capital Ltd 0.00% of their portfolio LONDON, X0 28,65528.7k $91.7k $91.7k 0.00% Reduced -105 -105
43 HRT FINANCIAL LP 0.00% of their portfolio NEW YORK, NY 26,97827.0k $86.0k $86.0k 0.00% New
44 AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio KANSAS CITY, MO 25,89525.9k $82.9k $82.9k 0.00% New
45 China Universal Asset Management Co., Ltd. 0.00% of their portfolio SHANGHAI, F4 25,00025.0k $80.0k $80.0k 0.00% New
46 UBS Group AG 0.00% of their portfolio ZURICH, V8 22,93222.9k $73.4k $73.4k 0.00% Added +9.2k +9,192
47 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 21,21121.2k $67.9k $67.9k 0.00% Reduced -94.3k -94,324
48 Chung Wu Investment Group, LLC 0.03% of their portfolio SUGAR LAND, TX 16,50016.5k $52.8k $52.8k 0.03% New
49 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 15,33315.3k $49.1k $49.1k 0.00% Unchanged
50 Coastal Bridge Advisors, LLC 0.00% of their portfolio WESTPORT, CT 15,00015.0k $48.0k $48.0k 0.00% New
51 Apollon Wealth Management, LLC 0.00% of their portfolio MOUNT PLEASANT, SC 13,87513.9k $44.4k $44.4k 0.00% Unchanged
52 Focus Partners Wealth 0.00% of their portfolio ST LOUIS, MO 13,01313.0k $41.6k $41.6k 0.00% New
53 TWO SIGMA SECURITIES, LLC 0.00% of their portfolio NEW YORK, NY 10,79710.8k $34.5k $34.5k 0.00% New
54 Vanguard Global Advisers, LLC 0.00% of their portfolio MALVERN, PA 5,8265.8k $18.6k $18.6k 0.00% Unchanged
55 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 2,3852.4k $7.6k $7.6k 0.00% Added +1.1k +1,094
56 GROUP ONE TRADING LLC 0.00% of their portfolio CHICAGO, IL 2,2382.2k $7.2k $7.2k 0.00% Reduced -10.3k -10,315
57 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 1,0001.0k $3.2k $3.2k 0.00% Unchanged
58 JONES FINANCIAL COMPANIES LLLP 0.00% of their portfolio DES PERES, MO 500500 $1.5k $1.5k 0.00% Added +250 +250
59 Caitong International Asset Management Co., Ltd 0.00% of their portfolio HONG KONG, K3 234234 $749 $749 0.00% Added +211 +211
60 SBI Securities Co., Ltd. 0.00% of their portfolio TOKYO, M0 6868 $218 $218 0.00% Reduced -61 -61