Vault-13

EQUILLIUM INC EQ

COM · Common Stock · CUSIP 29446K106

29 institutional holders +3 vs Q4 2023
9,039,7389.0m shares reported held*
25.6% of all shares outstanding*
$20.9mreported value*
8 new 6 added 10 reduced 5 sold out net sold ≈ $1.8m (-788.1k 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: 35.3m as of 2024-03-20, 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 ≈ $2.31. Options: 5 managers hold calls ($82.2k notional), 3 hold puts ($462).

Trends to Q1 2024

Institutional holders

Managers reporting a position, each quarter

02040Q3 22: 31Q4 22: 31Q1 23: 29Q2 23: 28Q3 23: 26Q4 23: 26Q1 24: 2929Q3 22Q1 23Q3 23Q1 24
Numbers
QuarterHolders
Q3 202231
Q4 202231
Q1 202329
Q2 202328
Q3 202326
Q4 202326
Q1 202429

Buyers vs sellers

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

Bought or addedCut or sold out
20020Q4 22: 19 bought or addedQ4 22: 9 cut or sold outQ4 22Q1 23: 6 bought or addedQ1 23: 14 cut or sold outQ1 23Q2 23: 9 bought or addedQ2 23: 10 cut or sold outQ2 23Q3 23: 7 bought or addedQ3 23: 9 cut or sold outQ3 23Q4 23: 7 bought or addedQ4 23: 11 cut or sold outQ4 23Q1 24: 14 bought or addedQ1 24: 15 cut or sold outQ1 24
Numbers
QuarterBought or addedCut or sold out
Q4 2022199
Q1 2023614
Q2 2023910
Q3 202379
Q4 2023711
Q1 20241415

Calls vs puts

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

CallsPuts
$0$25k$50k$75k$100kQ2 23 calls: $17.0kQ2 23 puts: $4.9kQ2 23P/C 0.29Q3 23 calls: $16.5kQ3 23 puts: $4.1kQ3 23P/C 0.25Q4 23 calls: $13.8kQ4 23 puts: $0Q4 23P/C 0.00Q1 24 calls: $82.2kQ1 24 puts: $462Q1 24P/C 0.01
Numbers
QuarterCallsPutsP/C
Q2 2023$17.0k$4.9k0.29
Q3 2023$16.5k$4.1k0.25
Q4 2023$13.8k$00.00
Q1 2024$82.2k$4620.01

Biggest buyers

ADAR1 Capital Management, LLC Added +192,275+192.3k
ACADIAN ASSET MANAGEMENT LLC New +108,691+108.7k
Callan Capital, LLC Added +99,688+99.7k
AMERICAN CENTURY COMPANIES INC New +40,332+40.3k
JANE STREET GROUP, LLC Added +29,716+29.7k
GEODE CAPITAL MANAGEMENT, LLC Added +27,341+27.3k
PRELUDE CAPITAL MANAGEMENT, LLC New +15,500+15.5k
SUSQUEHANNA INTERNATIONAL GROUP, LLP New +14,654+14.7k
MARSHALL WACE, LLP New +11,897+11.9k
Ground Swell Capital, LLC New +11,433+11.4k

Biggest sellers

JPMORGAN CHASE & CO Reduced -599,976-600.0k
TANG CAPITAL MANAGEMENT LLC Sold out -400,000-400.0k
RENAISSANCE TECHNOLOGIES LLC Reduced -138,300-138.3k
COMMONWEALTH EQUITY SERVICES, LLC Reduced -75,000-75.0k
CITADEL ADVISORS LLC Reduced -62,693-62.7k
PRUDENTIAL FINANCIAL INC Reduced -34,200-34.2k
MILLENNIUM MANAGEMENT LLC Sold out -24,692-24.7k
Capital CS Group, LLC Sold out -19,000-19.0k
STATE STREET CORP Reduced -3,600-3.6k
Tower Research Capital LLC (TRC) Reduced -2,023-2.0k

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $36.0k15.6k shares
CITADEL ADVISORS LLC Added $23.1k10.0k shares
ADAR1 Capital Management, LLC New $23.1k10.0k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares
SIMPLEX TRADING, LLC New $0400 shares

Biggest puts

CITADEL ADVISORS LLC New $462200 shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares
SIMPLEX TRADING, LLC New $0200 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 in Q1 2024

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
101Q2 22: 0 buyingQ2 22: 1 sellingQ3 22: 0 buyingQ3 22: 1 sellingQ3 22Q4 22: 0 buyingQ4 22: 0 sellingQ1 23: 0 buyingQ1 23: 0 sellingQ1 23Q2 23: 0 buyingQ2 23: 0 sellingQ3 23: 0 buyingQ3 23: 0 sellingQ3 23Q4 23: 0 buyingQ4 23: 0 sellingQ1 24: 0 buyingQ1 24: 0 sellingQ1 24
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q2 20220—1$38.0k—
Q3 20220—1$19.8k—
Q4 20220—0——
Q1 20230—0——
Q2 20230—0——
Q3 20230—0——
Q4 20230—0——
Q1 20240—0——

None reported in Q1 2024.

Holders, Q1 2024

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Decheng Capital LLC 1.38% of their portfolio MENLO PARK, CA 4,447,3084.4m $10.3m $10.3m 1.38% Unchanged
2 TAKEDA PHARMACEUTICAL CO LTD 1.46% of their portfolio Tokyo, M0 1,824,9771.8m $4.2m $4.2m 1.46% Unchanged
3 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 841,948841.9k $1.9m $1.9m 0.00% Added +5.0k +5,018
4 Cota Capital Management, LLC 3.44% of their portfolio SAN FRANCISCO, CA 562,278562.3k $1.3m $1.3m 3.44% Unchanged
5 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 209,200209.2k $483.0k $483.0k 0.00% Reduced -138.3k -138,300
6 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 199,728199.7k $461.5k $461.5k 0.00% Added +27.3k +27,341
7 Callan Capital, LLC 0.02% of their portfolio LA JOLLA, CA 199,376199.4k $460.6k $460.6k 0.02% Added +99.7k +99,688
8 ADAR1 Capital Management, LLC 0.13% of their portfolio AUSTIN, TX 198,775198.8k $459.2k $459.2k 0.13% Added +192.3k +192,275
9 ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio Boston, MA 108,691108.7k $249.0k $249.0k 0.00% New
10 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 100,086100.1k $231.2k $231.2k 0.00% Reduced -600.0k -599,976
11 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 52,62052.6k $121.6k $121.6k 0.00% Reduced -3.6k -3,600
12 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 41,75641.8k $96.5k $96.5k 0.00% Added +29.7k +29,716
13 AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio KANSAS CITY, MO 40,33240.3k $93.2k $93.2k 0.00% New
14 Integrated Wealth Concepts LLC 0.00% of their portfolio WALTHAM, MA 40,00040.0k $92.4k $92.4k 0.00% Unchanged
15 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 35,04935.0k $81.0k $81.0k 0.00% Reduced -106 -106
16 PRUDENTIAL FINANCIAL INC 0.00% of their portfolio NEWARK, NJ 31,20031.2k $72.1k $72.1k 0.00% Reduced -34.2k -34,200
17 COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio WALTHAM, MA 25,00025.0k $58.0k $58.0k 0.00% Reduced -75.0k -75,000
18 PRELUDE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio NEW YORK, NY 15,50015.5k $35.8k $35.8k 0.00% New
19 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 14,65414.7k $33.9k $33.9k 0.00% New
20 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 11,89711.9k $27.5k $27.5k 0.00% New
21 Ground Swell Capital, LLC 0.03% of their portfolio FOLLY BEACH, SC 11,43311.4k $26.4k $26.4k 0.03% New
22 STIFEL FINANCIAL CORP 0.00% of their portfolio ST. LOUIS, MO 10,11910.1k $23.4k $23.4k 0.00% New
23 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 7,3597.4k $17.0k $17.0k 0.00% Reduced -2.0k -2,023
24 SIMPLEX TRADING, LLC 0.00% of their portfolio CHICAGO, IL 5,1555.2k $11.0k $11.0k 0.00% New
25 BlackRock Inc. 0.00% of their portfolio New York, NY 3,8113.8k $8.8k $8.8k 0.00% Reduced -12 -12
26 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 1,1511.2k $2.7k $2.7k 0.00% Added +2 +2
27 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 306306 $707 $707 0.00% Reduced -62.7k -62,693
28 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 2929 $0 $0 0.00% Reduced -114 -114
29 CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio BIRMINGHAM, AL 00 $0 $0 0.00% Unchanged