Vault-13

IMMIX BIOPHARMA INC IMMX

COM · Common Stock · CUSIP 45258H106

109 institutional holders +32 vs Q1 2026
56,221,76056.2m shares reported held*
78.6% of all shares outstanding*
$579.6mreported value*
43 new 35 added 13 reduced 11 sold out net bought ≈ $249.0m (+24.2m 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: 71.5m as of 2026-08-03, 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 ≈ $10.31. Options: 3 managers hold calls ($1.0m notional), 2 hold puts ($308.3k).

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

050100150Q3 22: 13Q4 22: 19Q1 23: 13Q2 23: 19Q3 23: 17Q4 23: 29Q1 24: 36Q2 24: 32Q3 24: 26Q4 24: 24Q1 25: 23Q2 25: 24Q3 25: 31Q4 25: 67Q1 26: 77Q2 26: 109109Q3 22Q3 23Q3 24Q3 25Q2 26
Numbers
QuarterHolders
Q3 202213
Q4 202219
Q1 202313
Q2 202319
Q3 202317
Q4 202329
Q1 202436
Q2 202432
Q3 202426
Q4 202424
Q1 202523
Q2 202524
Q3 202531
Q4 202567
Q1 202677
Q2 2026109

Buyers vs sellers

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

Bought or addedCut or sold out
1000100Q3 24: 6 bought or addedQ3 24: 10 cut or sold outQ4 24: 8 bought or addedQ4 24: 13 cut or sold outQ4 24Q1 25: 7 bought or addedQ1 25: 13 cut or sold outQ2 25: 10 bought or addedQ2 25: 8 cut or sold outQ2 25Q3 25: 18 bought or addedQ3 25: 8 cut or sold outQ4 25: 56 bought or addedQ4 25: 11 cut or sold outQ4 25Q1 26: 49 bought or addedQ1 26: 25 cut or sold outQ2 26: 78 bought or addedQ2 26: 24 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q3 2024610
Q4 2024813
Q1 2025713
Q2 2025108
Q3 2025188
Q4 20255611
Q1 20264925
Q2 20267824

Calls vs puts

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

CallsPuts
$0$500k$1m$1.5mQ3 25 calls: $0Q3 25 puts: $0Q3 25P/C —Q4 25 calls: $224.9kQ4 25 puts: $435.7kQ4 25P/C 1.94Q1 26 calls: $236.9kQ1 26 puts: $947.4kQ1 26P/C 4.00Q2 26 calls: $1.0mQ2 26 puts: $308.3kQ2 26P/C 0.30
Numbers
QuarterCallsPutsP/C
Q3 2025$0$0—
Q4 2025$224.9k$435.7k1.94
Q1 2026$236.9k$947.4k4.00
Q2 2026$1.0m$308.3k0.30

Biggest buyers

STATE STREET CORP Added +2,805,025+2.8m
Deep Track Capital, LP New +2,775,000+2.8m
BlackRock, Inc. Added +2,521,595+2.5m
Opaleye Management Inc. New +2,345,000+2.3m
UBS Group AG Added +1,864,985+1.9m
WELLINGTON MANAGEMENT GROUP LLP New +1,473,409+1.5m
EVENTIDE ASSET MANAGEMENT, LLC Added +1,342,000+1.3m
PRICE T ROWE ASSOCIATES INC /MD/ Added +1,324,918+1.3m
Saturn V Capital Management LP Added +964,844+964.8k
GREAT POINT PARTNERS LLC Added +927,642+927.6k

Biggest sellers

SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced -432,663-432.7k
Logos Global Management LP Reduced -225,000-225.0k
Blue Owl Capital Holdings LP Reduced -110,000-110.0k
SEI INVESTMENTS CO Reduced -79,792-79.8k
Hudson Bay Capital Management LP Sold out -63,501-63.5k
Brevan Howard Capital Management LP Sold out -57,508-57.5k
Palumbo Wealth Management LLC Sold out -55,232-55.2k
Qube Research & Technologies Ltd Reduced -45,711-45.7k
XTX Topco Ltd Reduced -40,556-40.6k
JANE STREET GROUP, LLC Sold out -35,164-35.2k

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $676.3k65.6k shares
CITADEL ADVISORS LLC New $325.8k31.6k shares
SIMPLEX TRADING, LLC New $13.4k1.3k shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced $226.8k22.0k shares
SIMPLEX TRADING, LLC Reduced $81.4k7.9k 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 Ltd. 13G · institution +1.0 pts · filed 2026-08-13 14.0% +1.0 pts 9.8m≈ $100.9m 2026-08-13
Saturn V Capital Management LP 13G · institution new · filed 2026-02-17 7.0% new 3.7m≈ $38.1m 2026-02-17
EVENTIDE ASSET MANAGEMENT, LLC 13G · institution new · filed 2026-08-14 5.6% new 3.9m≈ $40.1m 2026-08-14
BlackRock, Inc. 13G · institution new · filed 2026-10-27 5.5% new 4.5m≈ $44.6m 2026-10-27

Fell to 5% or below in the last year: MILLENNIUM MANAGEMENT LLC (3.3%, 2026-05-04)

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
202Q4 24: 1 buyingQ4 24: 0 sellingQ1 25: 0 buyingQ1 25: 0 sellingQ1 25Q2 25: 2 buyingQ2 25: 0 sellingQ3 25: 2 buyingQ3 25: 0 sellingQ3 25Q4 25: 2 buyingQ4 25: 0 sellingQ1 26: 0 buyingQ1 26: 0 sellingQ1 26Q2 26: 0 buyingQ2 26: 0 sellingQ3 26: 0 buyingQ3 26: 0 sellingQ3 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20241$104.3k0——
Q1 20250—0——
Q2 20252$10.1k0——
Q3 20252$10.2k0——
Q4 20252$10.0k0——
Q1 20260—0——
Q2 20260—0——
Q3 20260—0——

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Jupiter Topco LLC 0.04% of their portfolio NEW YORK, NY 9,783,1929.8m $100.8m $100.8m 0.04% First filing
2 Saturn V Capital Management LP 6.89% of their portfolio AUSTIN, TX 4,658,4294.7m $48.0m $48.0m 6.89% Added +964.8k +964,844
3 EVENTIDE ASSET MANAGEMENT, LLC 0.54% of their portfolio Boston, MA 3,891,0193.9m $40.1m $40.1m 0.54% Added +1.3m +1,342,000
4 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 2,996,9353.0m $30.9m $30.9m 0.00% Added +2.8m +2,805,025
5 BlackRock, Inc. 0.00% of their portfolio New York, NY 2,989,9723.0m $30.8m $30.8m 0.00% Added +2.5m +2,521,595
6 Deep Track Capital, LP 0.42% of their portfolio GREENWICH, CT 2,775,0002.8m $28.6m $28.6m 0.42% New
7 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 2,507,1222.5m $25.8m $25.8m 0.00% Added +719.1k +719,128
8 Opaleye Management Inc. 2.19% of their portfolio BOSTON, MA 2,345,0002.3m $24.2m $24.2m 2.19% New
9 MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 2,066,4262.1m $21.3m $21.3m 0.01% Added +316.2k +316,226
10 UBS Group AG 0.00% of their portfolio ZURICH, V8 1,941,8171.9m $20.0m $20.0m 0.00% Added +1.9m +1,864,985
11 MARSHALL WACE, LLP 0.02% of their portfolio LONDON, X0 1,794,9081.8m $18.5m $18.5m 0.02% Added +153.4k +153,356
12 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 1,739,9191.7m $17.9m $17.9m 0.00% Added +1.3m +1,324,918
13 WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio Boston, MA 1,473,4091.5m $15.2m $15.2m 0.00% New
14 GREAT POINT PARTNERS LLC 3.10% of their portfolio Greenwich, CT 1,277,6421.3m $13.2m $13.2m 3.10% Added +927.6k +927,642
15 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 1,201,0971.2m $12.4m $12.4m 0.00% Added +737.7k +737,713
16 Velan Capital Investment Management LP 6.85% of their portfolio ALPHARETTA, GA 1,085,0001.1m $11.2m $11.2m 6.85% Added +345.0k +345,000
17 Bleichroeder LP 1.84% of their portfolio NEW YORK, NY 1,000,0001.0m $10.3m $10.3m 1.84% Unchanged
18 Logos Global Management LP 0.44% of their portfolio San Francisco, CA 1,000,0001.0m $10.3m $10.3m 0.44% Reduced -225.0k -225,000
19 FRANKLIN RESOURCES INC 0.00% of their portfolio San Mateo, CA 969,120969.1k $10.0m $10.0m 0.00% Added +54 +54
20 Burkehill Global Management, LP 0.20% of their portfolio NEW YORK, NY 544,118544.1k $5.6m $5.6m 0.20% Added +250.0k +250,000
21 AMERIPRISE FINANCIAL INC 0.00% of their portfolio MINNEAPOLIS, MN 518,881518.9k $5.3m $5.3m 0.00% New
22 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 506,157506.2k $5.2m $5.2m 0.00% Added +459.0k +458,984
23 Blue Owl Capital Holdings LP 0.69% of their portfolio New York, NY 437,552437.6k $4.5m $4.5m 0.69% Reduced -110.0k -110,000
24 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 418,051418.1k $4.3m $4.3m 0.00% Added +279.8k +279,819
25 Balyasny Asset Management L.P. 0.01% of their portfolio Chicago, IL 417,227417.2k $4.3m $4.3m 0.01% New
26 LGT Fund Management Co Ltd. 0.18% of their portfolio VADUZ, N2 416,594416.6k $4.3m $4.3m 0.18% Unchanged
27 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 413,145413.1k $4.3m $4.3m 0.00% Added +372.0k +372,014
28 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 406,032406.0k $4.2m $4.2m 0.00% Added +153.1k +153,118
29 Institute for Wealth Management, LLC. 0.31% of their portfolio DENVER, CO 337,552337.6k $3.5m $3.5m 0.31% Unchanged
30 VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 283,711283.7k $2.9m $2.9m 0.00% New
31 SPHERA FUNDS MANAGEMENT LTD. 0.40% of their portfolio TEL AVIV, L3 270,000270.0k $2.8m $2.8m 0.40% New
32 SEVEN GRAND MANAGERS, LLC 0.11% of their portfolio BRONXVILLE, NY 255,000255.0k $2.6m $2.6m 0.11% New
33 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 235,720235.7k $2.4m $2.4m 0.00% Added +152.1k +152,109
34 KVP Capital Advisors, LP 1.74% of their portfolio SAN FRANCISCO, CA 230,423230.4k $2.4m $2.4m 1.74% Unchanged
35 TD Asset Management Inc 0.00% of their portfolio Toronto, A6 214,090214.1k $2.2m $2.2m 0.00% Added +160.9k +160,890
36 J. Goldman & Co LP 0.07% of their portfolio NEW YORK, NY 198,732198.7k $2.0m $2.0m 0.07% Reduced -29.4k -29,357
37 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 174,107174.1k $1.8m $1.8m 0.00% Added +78.7k +78,703
38 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 159,474159.5k $1.6m $1.6m 0.00% Added +19.6k +19,588
39 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 146,854146.9k $1.5m $1.5m 0.00% Added +117.9k +117,890
40 Qube Research & Technologies Ltd 0.00% of their portfolio LONDON, X0 141,964142.0k $1.5m $1.5m 0.00% Reduced -45.7k -45,711
41 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 127,256127.3k $1.3m $1.3m 0.00% Added +99.8k +99,794
42 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 113,320113.3k $1.2m $1.2m 0.00% Added +96.2k +96,171
43 Nuveen, LLC 0.00% of their portfolio CHARLOTTE, NC 102,979103.0k $1.1m $1.1m 0.00% New
44 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 93,10693.1k $959.9k $959.9k 0.00% New
45 Informed Momentum Co LLC 0.09% of their portfolio SOLANA BEACH, CA 92,82592.8k $957.0k $957.0k 0.09% Reduced -28.0k -28,031
46 TOCQUEVILLE ASSET MANAGEMENT L.P. 0.01% of their portfolio New York, NY 88,55088.5k $913.0k $913.0k 0.01% Reduced -1.0k -1,000
47 BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio HOUSTON, TX 80,00080.0k $824.8k $824.8k 0.01% Unchanged
48 UNITED CAPITAL FINANCIAL ADVISORS, LLC 0.00% of their portfolio IRVING, TX 70,68270.7k $728.7k $728.7k 0.00% Unchanged
49 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 70,65470.7k $728.4k $728.4k 0.00% Added +68.2k +68,190
50 Squarepoint Ops LLC 0.00% of their portfolio NEW YORK, NY 70,06270.1k $722.3k $722.3k 0.00% Added +25.6k +25,572
51 SEI INVESTMENTS CO 0.00% of their portfolio OAKS, PA 67,34867.3k $694.4k $694.4k 0.00% Reduced -79.8k -79,792
52 Rafferty Asset Management, LLC 0.00% of their portfolio New York, NY 58,48658.5k $603.0k $603.0k 0.00% New
53 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 53,05653.1k $547.0k $547.0k 0.00% Added +1.3k +1,288
54 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 50,94450.9k $525.2k $525.2k 0.00% New
55 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 40,86140.9k $421.3k $421.3k 0.00% New
56 XTX Topco Ltd 0.01% of their portfolio LONDON, X0 40,49540.5k $417.5k $417.5k 0.01% Reduced -40.6k -40,556
57 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 40,18140.2k $414.3k $414.3k 0.00% New
58 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 39,29039.3k $357.9k $357.9k 0.00% New
59 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 38,73138.7k $399.3k $399.3k 0.00% Reduced -432.7k -432,663
60 Virtus Investment Advisers, LLC 0.09% of their portfolio HARTFORD, CT 38,72138.7k $399.2k $399.2k 0.09% New
61 Quadrature Capital Ltd 0.00% of their portfolio LONDON, X0 37,63737.6k $388.0k $388.0k 0.00% New
62 Private Advisor Group, LLC 0.00% of their portfolio MORRISTOWN, NJ 35,32535.3k $364.2k $364.2k 0.00% Added +600 +600
63 CERTUITY, LLC 0.02% of their portfolio NORTH PALM BEACH, FL 35,00035.0k $360.9k $360.9k 0.02% Unchanged
64 PROFUND ADVISORS LLC 0.01% of their portfolio BETHESDA, MD 29,30529.3k $302.1k $302.1k 0.01% New
65 Imprint Wealth LLC 1.10% of their portfolio MOUNT PLEASANT, SC 26,23326.2k $270.5k $270.5k 1.10% Reduced -5.0k -5,015
66 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio CAUSEWAY BAY, K3 25,62925.6k $265.5k $265.5k 0.00% New
67 MetLife Investment Management, LLC 0.00% of their portfolio Whippany, NJ 24,93224.9k $257.0k $257.0k 0.00% New
68 TritonPoint Partners, LLC 0.02% of their portfolio CHEVY CHASE, MD 24,52624.5k $252.9k $252.9k 0.02% Unchanged
69 Concurrent Investment Advisors, LLC 0.00% of their portfolio Tampa, FL 24,00024.0k $247.4k $247.4k 0.00% Reduced -251 -251
70 Virtu Financial LLC 0.01% of their portfolio New York, NY 23,84723.8k $246.0k $246.0k 0.01% Reduced -24.3k -24,262
71 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 22,31822.3k $230.1k $230.1k 0.00% New
72 Vanguard Global Advisers, LLC 0.00% of their portfolio MALVERN, PA 22,09522.1k $227.8k $227.8k 0.00% Added +2.4k +2,353
73 Quent Capital, LLC 0.01% of their portfolio NEW YORK, NY 20,00020.0k $206.2k $206.2k 0.01% New
74 GSA CAPITAL PARTNERS LLP 0.01% of their portfolio LONDON, X0 19,87319.9k $205.0k $205.0k 0.01% Added +2.1k +2,056
75 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 19,57519.6k $205.3k $205.3k 0.00% Added +17.0k +17,038
76 Engineers Gate Manager LP 0.00% of their portfolio NEW YORK, NY 17,83017.8k $183.8k $183.8k 0.00% New
77 DRW Securities, LLC 0.01% of their portfolio CHICAGO, IL 16,40216.4k $169.1k $169.1k 0.01% New
78 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 14,40014.4k $148.5k $148.5k 0.00% New
79 State of Wyoming 0.01% of their portfolio CHEYENNE, WY 13,58913.6k $140.1k $140.1k 0.01% New
80 Scientech Research LLC 0.11% of their portfolio JERSEY CITY, NJ 13,52413.5k $139.4k $139.4k 0.11% New
81 Kera Capital Partners, Inc. 0.01% of their portfolio SACRAMENTO, CA 13,00013.0k $134.0k $134.0k 0.01% Unchanged
82 COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio WALTHAM, MA 12,82012.8k $132.2k $132.2k 0.00% Unchanged
83 Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio TRENTON, NJ 12,11512.1k $124.9k $124.9k 0.00% New
84 Magnetar Financial LLC 0.00% of their portfolio EVANSTON, IL 10,95411.0k $112.9k $112.9k 0.00% New
85 Mathes Company, Inc. 0.03% of their portfolio New York, NY 10,65010.7k $110.0k $110.0k 0.03% Unchanged
86 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 10,55210.6k $108.8k $108.8k 0.00% New
87 SBI Securities Co., Ltd. 0.00% of their portfolio TOKYO, M0 10,00010.0k $103.1k $103.1k 0.00% Unchanged
88 Everhart Financial Group, Inc. 0.01% of their portfolio Dublin, OH 10,00010.0k $103.1k $103.1k 0.01% New
89 Snowden Capital Advisors LLC 0.00% of their portfolio New York, NY 10,00010.0k $103.1k $103.1k 0.00% Unchanged
90 STRS OHIO 0.00% of their portfolio COLUMBUS, OH 8,1008.1k $83.5k $83.5k 0.00% New
91 Allworth Financial LP 0.00% of their portfolio FOLSOM, CA 7,2457.2k $74.7k $74.7k 0.00% Unchanged
92 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 6,2756.3k $64.7k $64.7k 0.00% Added +3.5k +3,501
93 COMPASS FINANCIAL MANAGEMENT LLC 0.01% of their portfolio TAMPA, FL 6,0006.0k $56.0k $56.0k 0.01% First filing
94 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 4,0004.0k $41.2k $41.2k 0.00% Unchanged
95 Legal & General Group Plc 0.00% of their portfolio London, X0 3,9854.0k $41.1k $41.1k 0.00% New
96 SIMPLEX TRADING, LLC 0.00% of their portfolio CHICAGO, IL 3,8113.8k $39.3k $39.3k 0.00% Reduced -444 -444
97 Ameritas Investment Partners, Inc. 0.00% of their portfolio LINCOLN, NE 3,7283.7k $38.4k $38.4k 0.00% New
98 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 3,2843.3k $33.9k $33.9k 0.00% New
99 US BANCORP \DE\ 0.00% of their portfolio MINNEAPOLIS, MN 3,1403.1k $32.4k $32.4k 0.00% New
100 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 2,9292.9k $30.2k $30.2k 0.00% New