Vault-13

ALX ONCOLOGY HLDGS INC ALXO

COM · Common Stock · CUSIP 00166B105

94 institutional holders +25 vs Q1 2026
105,938,046105.9m shares reported held*
76.6% of all shares outstanding*
$219.4mreported value*
37 new 29 added 10 reduced 11 sold out net bought ≈ $24.2m (+11.7m 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: 138.3m as of 2026-07-30, 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 ≈ $2.07. Options: 4 managers hold calls ($181.5k notional), 1 hold puts ($1.0k).

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

050100150Q3 22: 99Q4 22: 88Q1 23: 87Q2 23: 76Q3 23: 77Q4 23: 94Q1 24: 107Q2 24: 114Q3 24: 93Q4 24: 88Q1 25: 86Q2 25: 62Q3 25: 61Q4 25: 57Q1 26: 69Q2 26: 9494Q3 22Q3 23Q3 24Q3 25Q2 26
Numbers
QuarterHolders
Q3 202299
Q4 202288
Q1 202387
Q2 202376
Q3 202377
Q4 202394
Q1 2024107
Q2 2024114
Q3 202493
Q4 202488
Q1 202586
Q2 202562
Q3 202561
Q4 202557
Q1 202669
Q2 202694

Buyers vs sellers

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

Bought or addedCut or sold out
1000100Q3 24: 56 bought or addedQ3 24: 58 cut or sold outQ4 24: 48 bought or addedQ4 24: 46 cut or sold outQ4 24Q1 25: 33 bought or addedQ1 25: 38 cut or sold outQ2 25: 19 bought or addedQ2 25: 66 cut or sold outQ2 25Q3 25: 18 bought or addedQ3 25: 39 cut or sold outQ4 25: 25 bought or addedQ4 25: 25 cut or sold outQ4 25Q1 26: 37 bought or addedQ1 26: 24 cut or sold outQ2 26: 66 bought or addedQ2 26: 21 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q3 20245658
Q4 20244846
Q1 20253338
Q2 20251966
Q3 20251839
Q4 20252525
Q1 20263724
Q2 20266621

Calls vs puts

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

CallsPuts
$0$200k$400k$600kQ3 25 calls: $431.1kQ3 25 puts: $8.0kQ3 25P/C 0.02Q4 25 calls: $240.5kQ4 25 puts: $96.2kQ4 25P/C 0.40Q1 26 calls: $155.7kQ1 26 puts: $100.5kQ1 26P/C 0.65Q2 26 calls: $181.5kQ2 26 puts: $1.0kQ2 26P/C 0.01
Numbers
QuarterCallsPutsP/C
Q3 2025$431.1k$8.0k0.02
Q4 2025$240.5k$96.2k0.40
Q1 2026$155.7k$100.5k0.65
Q2 2026$181.5k$1.0k0.01

Biggest buyers

BlackRock, Inc. Added +6,951,731+7.0m
SILVERARC CAPITAL MANAGEMENT, LLC New +5,744,757+5.7m
GEODE CAPITAL MANAGEMENT, LLC Added +2,294,372+2.3m
Nantahala Capital Management, LLC New +1,500,000+1.5m
STATE STREET CORP Added +1,323,077+1.3m
JPMORGAN CHASE & CO Added +1,044,629+1.0m
NORTHERN TRUST CORP Added +798,705+798.7k
VANGUARD CAPITAL MANAGEMENT LLC Added +793,700+793.7k
Blackstone Inc. Added +766,999+767.0k
VANGUARD PORTFOLIO MANAGEMENT LLC Added +651,348+651.3k

Biggest sellers

TCG Crossover Management, LLC Reduced -7,356,362-7.4m
ADAGE CAPITAL PARTNERS GP, L.L.C. Sold out -2,000,000-2.0m
Squadron Capital Management LLC Sold out -1,460,000-1.5m
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced -1,205,750-1.2m
MARSHALL WACE, LLP Reduced -685,720-685.7k
Redmile Group, LLC Reduced -571,684-571.7k
BANK OF AMERICA CORP /DE/ Reduced -501,751-501.8k
UBS Group AG Reduced -451,811-451.8k
MILLENNIUM MANAGEMENT LLC Reduced -444,965-445.0k
Almitas Capital LLC Reduced -235,403-235.4k

Biggest calls

CITADEL ADVISORS LLC Reduced $74.9k36.2k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $51.3k24.8k shares
GROUP ONE TRADING LLC Added $44.1k21.3k shares
SIMPLEX TRADING, LLC Unchanged $11.2k5.4k shares

Biggest puts

SIMPLEX TRADING, LLC Reduced $1.0k500 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
venBio Global Strategic Fund, L.P. 13D · may seek influence no change · filed 2026-10-16
Stated purposeItem 4 of the Schedule 13D is hereby amended and supplemented as follows: The responses to Items 3 and 6 of this Amendment No. 2 are incorporated by reference herein. Mr. Goodman resigned from the Issuer's board of directors effective June 29, 2026. Full filing
10.0% no change 12.9m≈ $26.8m 2026-10-16
RA CAPITAL MANAGEMENT, L.P. 13G · passive investor new · filed 2026-02-09 9.9% new 13.1m≈ $27.2m 2026-02-09
HBM Healthcare Investments (Cayman) Ltd. 13G · passive investor -1.9 pts · filed 2026-05-15 6.5% -1.9 pts 8.6m≈ $17.8m 2026-05-15
TANG CAPITAL PARTNERS LP 13G · passive investor filed 2025-02-14 6.3% 3.3m≈ $6.8m 2025-02-14
BlackRock, Inc. 13G · institution new · filed 2026-07-27 5.4% new 7.3m≈ $15.2m 2026-07-27

Fell to 5% or below in the last year: TCG Crossover GP II, LLC (4.2%, 2026-08-14), LSV Associates, LLC (2.2%, 2026-05-27), Redmile Group, LLC (6.8%, 2026-05-15), MILLENNIUM MANAGEMENT LLC (1.5%, 2026-04-28), TANG CAPITAL MANAGEMENT LLC (0.0%, 2025-11-14)

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: 1 buyingQ4 24: 2 sellingQ1 25: 0 buyingQ1 25: 3 sellingQ1 25Q2 25: 0 buyingQ2 25: 1 sellingQ3 25: 2 buyingQ3 25: 2 sellingQ3 25Q4 25: 0 buyingQ4 25: 0 sellingQ1 26: 1 buyingQ1 26: 2 sellingQ1 26Q2 26: 0 buyingQ2 26: 0 sellingQ3 26: 0 buyingQ3 26: 2 sellingQ3 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20241$46.5k2$19.3k—
Q1 20250—3$8.6k—
Q2 20250—1$659—
Q3 20252$157.9k2$2.8k—
Q4 20250—0——
Q1 20261$5.0m2$34.3k—
Q2 20260—0——
Q3 20260—2$8.3k—
DateInsiderTradeSharesPrice ValueTheir holding
2026-08-17 Lettmann Jason CHIEF EXECUTIVE OFFICER, director Sold 2,230 $1.93 $4.3k2.2k shares -1%
2026-08-17 Wong Shelly SVP, FINANCE AND CAO Sold 573 $1.93 $1.1k573 shares -1%
2026-07-01 Wong Shelly SVP, FINANCE AND CAO Sold 1,404 $2.04 $2.9k1.4k shares -2%

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 RA CAPITAL MANAGEMENT, L.P. 0.23% of their portfolio BOSTON, MA 13,011,84913.0m $26.9m $26.9m 0.23% Unchanged
2 venBio Partners LLC 5.14% of their portfolio SAN FRANCISCO, CA 12,884,63812.9m $26.7m $26.7m 5.14% Unchanged
3 BlackRock, Inc. 0.00% of their portfolio New York, NY 7,399,5307.4m $15.3m $15.3m 0.00% Added +7.0m +6,951,731
4 Redmile Group, LLC 1.03% of their portfolio LARKSPUR, CA 7,392,5047.4m $15.3m $15.3m 1.03% Reduced -571.7k -571,684
5 Blackstone Inc. 0.04% of their portfolio NEW YORK, NY 6,593,5436.6m $13.6m $13.6m 0.04% Added +767.0k +766,999
6 Driehaus Capital Management LLC 0.07% of their portfolio Chicago, IL 6,025,2406.0m $12.5m $12.5m 0.07% Added +290.6k +290,620
7 SILVERARC CAPITAL MANAGEMENT, LLC 1.32% of their portfolio BOSTON, MA 5,744,7575.7m $11.9m $11.9m 1.32% New
8 TCG Crossover Management, LLC 0.28% of their portfolio PALO ALTO, CA 5,655,4875.7m $11.7m $11.7m 0.28% Reduced -7.4m -7,356,362
9 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 4,973,4365.0m $10.3m $10.3m 0.00% Added +793.7k +793,700
10 Vivo Capital, LLC 0.60% of their portfolio Palo Alto, CA 3,184,7133.2m $6.6m $6.6m 0.60% Unchanged
11 MARSHALL WACE, LLP 0.01% of their portfolio LONDON, X0 3,071,4963.1m $6.4m $6.4m 0.01% Reduced -685.7k -685,720
12 5AM Venture Management, LLC 2.20% of their portfolio SAN FRANCISCO, CA 3,057,3253.1m $6.3m $6.3m 2.20% Unchanged
13 Almitas Capital LLC 1.46% of their portfolio SANTA MONICA, CA 2,938,4312.9m $6.1m $6.1m 1.46% Reduced -235.4k -235,403
14 ORBIMED ADVISORS LLC 0.11% of their portfolio New York, NY 2,866,2562.9m $5.9m $5.9m 0.11% Unchanged
15 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 2,787,8092.8m $5.8m $5.8m 0.00% Added +2.3m +2,294,372
16 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 2,178,1762.2m $4.5m $4.5m 0.00% Added +590.3k +590,343
17 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 1,543,5941.5m $3.2m $3.2m 0.00% Reduced -445.0k -444,965
18 Nantahala Capital Management, LLC 0.09% of their portfolio NEW CANAAN, CT 1,500,0001.5m $3.1m $3.1m 0.09% New
19 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 1,498,9051.5m $3.1m $3.1m 0.00% Added +1.3m +1,323,077
20 ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio Boston, MA 1,313,4901.3m $2.7m $2.7m 0.00% Added +212.5k +212,465
21 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 1,044,7281.0m $2.3m $2.3m 0.00% Added +1.0m +1,044,629
22 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 935,669935.7k $1.9m $1.9m 0.00% Added +798.7k +798,705
23 Ensign Peak Advisors, Inc 0.00% of their portfolio SALT LAKE CITY, UT 810,297810.3k $1.7m $1.7m 0.00% Reduced -140.3k -140,253
24 VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 749,229749.2k $1.6m $1.6m 0.00% Added +651.3k +651,348
25 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 743,491743.5k $1.5m $1.5m 0.00% Added +449.0k +449,013
26 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 742,331742.3k $1.5m $1.5m 0.00% Added +603.7k +603,738
27 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 603,797603.8k $1.2m $1.2m 0.00% Reduced -128.8k -128,802
28 ADAR1 Capital Management, LLC 0.05% of their portfolio AUSTIN, TX 533,660533.7k $1.1m $1.1m 0.05% New
29 UBS Group AG 0.00% of their portfolio ZURICH, V8 462,943462.9k $958.3k $958.3k 0.00% Reduced -451.8k -451,811
30 GSA CAPITAL PARTNERS LLP 0.05% of their portfolio LONDON, X0 413,545413.5k $856.0k $856.0k 0.05% Added +344.6k +344,558
31 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 241,113241.1k $499.1k $499.1k 0.00% New
32 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 238,447238.4k $493.6k $493.6k 0.00% New
33 BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio HOUSTON, TX 226,072226.1k $468.0k $468.0k 0.01% Added +150.0k +150,000
34 Atom Investors LP 0.04% of their portfolio AUSTIN, TX 219,382219.4k $454.1k $454.1k 0.04% New
35 IEQ CAPITAL, LLC 0.00% of their portfolio Foster City, CA 175,382175.4k $363.0k $363.0k 0.00% Added +83.1k +83,149
36 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 157,873157.9k $326.8k $326.8k 0.00% Added +59.0k +59,038
37 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 149,923149.9k $310.3k $310.3k 0.00% Added +138.9k +138,943
38 Nuveen, LLC 0.00% of their portfolio CHARLOTTE, NC 143,645143.6k $297.3k $297.3k 0.00% New
39 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 123,157123.2k $254.9k $254.9k 0.00% Reduced -1.2m -1,205,750
40 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 107,902107.9k $223.3k $223.3k 0.00% New
41 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 107,428107.4k $222.4k $222.4k 0.00% New
42 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 99,92699.9k $206.8k $206.8k 0.00% New
43 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 89,77989.8k $186.0k $186.0k 0.00% New
44 Verdad Advisers, LP 0.16% of their portfolio BOSTON, MA 82,20082.2k $170.2k $170.2k 0.16% New
45 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 76,03276.0k $157.4k $157.4k 0.00% Reduced -501.8k -501,751
46 Graham Capital Management, L.P. 0.00% of their portfolio ROWAYTON, CT 74,82174.8k $154.9k $154.9k 0.00% Added +37.1k +37,082
47 XTX Topco Ltd 0.00% of their portfolio LONDON, X0 69,65769.7k $144.2k $144.2k 0.00% Added +25.5k +25,516
48 MetLife Investment Management, LLC 0.00% of their portfolio Whippany, NJ 64,95965.0k $134.5k $134.5k 0.00% New
49 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 50,63550.6k $104.8k $104.8k 0.00% Added +50.6k +50,618
50 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio CAUSEWAY BAY, K3 49,68249.7k $102.8k $102.8k 0.00% New
51 Squarepoint Ops LLC 0.00% of their portfolio NEW YORK, NY 46,86946.9k $97.0k $97.0k 0.00% New
52 Vanguard Global Advisers, LLC 0.00% of their portfolio MALVERN, PA 43,03843.0k $89.1k $89.1k 0.00% Added +33.1k +33,070
53 AXQ CAPITAL, LP 0.01% of their portfolio JERSEY CITY, NJ 40,55340.6k $83.9k $83.9k 0.01% New
54 WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 0.00% of their portfolio PLYMOUTH, MN 38,01138.0k $80.8k $80.8k 0.00% Added +14 +14
55 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 33,10033.1k $68.5k $68.5k 0.00% New
56 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 32,88432.9k $68.1k $68.1k 0.00% Added +22.4k +22,369
57 Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio TRENTON, NJ 31,82231.8k $65.9k $65.9k 0.00% New
58 MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio Toronto, A6 30,99731.0k $64.2k $64.2k 0.00% New
59 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 26,34026.3k $52.8k $52.8k 0.00% New
60 JACOBS LEVY EQUITY MANAGEMENT, INC 0.00% of their portfolio FLORHAM PARK, NJ 25,50725.5k $52.8k $52.8k 0.00% New
61 HC Advisors, LLC 0.03% of their portfolio SANDY SPRINGS, GA 22,90022.9k $47.4k $47.4k 0.03% Unchanged
62 Callan Family Office, LLC 0.00% of their portfolio RADNOR, PA 22,41922.4k $46.4k $46.4k 0.00% Unchanged
63 VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio ATLANTA, GA 21,46121.5k $44.4k $44.4k 0.00% New
64 AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio KANSAS CITY, MO 21,43421.4k $44.4k $44.4k 0.00% New
65 CAXTON CORP 2.34% of their portfolio Princeton, NJ 20,94620.9k $43.4k $43.4k 2.34% Unchanged
66 INTECH INVESTMENT MANAGEMENT LLC 0.00% of their portfolio WEST PALM BEACH, FL 19,42419.4k $40.2k $40.2k 0.00% New
67 COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio WALTHAM, MA 18,45118.5k $38.2k $38.2k 0.00% New
68 Bronte Capital Management Pty Ltd. 0.00% of their portfolio Bondi Junction, C3 18,09518.1k $37.5k $37.5k 0.00% New
69 JSF Financial, LLC 0.01% of their portfolio LOS ANGELES, CA 17,50017.5k $36.2k $36.2k 0.01% Unchanged
70 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 16,61616.6k $34.4k $34.4k 0.00% Added +16.1k +16,150
71 PRUDENTIAL FINANCIAL INC 0.00% of their portfolio NEWARK, NJ 16,38516.4k $33.9k $33.9k 0.00% New
72 MONETA GROUP INVESTMENT ADVISORS LLC 0.00% of their portfolio ST LOUIS, MO 15,19615.2k $31.5k $31.5k 0.00% Unchanged
73 ProShare Advisors LLC 0.00% of their portfolio BETHESDA, MD 14,12514.1k $29.2k $29.2k 0.00% New
74 FMR LLC 0.00% of their portfolio BOSTON, MA 13,24213.2k $27.4k $27.4k 0.00% Added +256 +256
75 Lido Advisors, LLC 0.00% of their portfolio Los Angeles, CA 13,22013.2k $27.4k $27.4k 0.00% Unchanged
76 Abel Hall, LLC 0.00% of their portfolio BATON ROUGE, LA 12,73112.7k $26.4k $26.4k 0.00% Added +133 +133
77 Beacon Pointe Advisors, LLC 0.00% of their portfolio NEWPORT BEACH, CA 12,50012.5k $25.9k $25.9k 0.00% Unchanged
78 China Universal Asset Management Co., Ltd. 0.00% of their portfolio SHANGHAI, F4 12,50012.5k $25.9k $25.9k 0.00% New
79 Legal & General Group Plc 0.00% of their portfolio London, X0 10,48310.5k $21.7k $21.7k 0.00% New
80 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 10,39710.4k $21.5k $21.5k 0.00% New
81 XPONANCE LLC 0.00% of their portfolio PHILADELPHIA, PA 10,17910.2k $21.1k $21.1k 0.00% New
82 HSBC HOLDINGS PLC 0.00% of their portfolio LONDON, X0 10,10510.1k $21.6k $21.6k 0.00% Unchanged
83 Ameritas Investment Partners, Inc. 0.00% of their portfolio LINCOLN, NE 9,7929.8k $20.3k $20.3k 0.00% New
84 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 8,6288.6k $17.9k $17.9k 0.00% New
85 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 6,1566.2k $13.0k $13.0k 0.00% Added +4.3k +4,277
86 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 1,4861.5k $3.1k $3.1k 0.00% New
87 NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio ST. LOUIS, MO 1,1061.1k $2.3k $2.3k 0.00% Unchanged
88 Bradley & Co. Private Wealth Management, LLC 0.00% of their portfolio MIAMI, FL 1,0001.0k $2.1k $2.1k 0.00% Unchanged
89 EverSource Wealth Advisors, LLC 0.00% of their portfolio BIRMINGHAM, AL 905905 $1.9k $1.9k 0.00% Unchanged
90 Sterling Capital Management LLC 0.00% of their portfolio CHARLOTTE, NC 379379 $785 $785 0.00% New
91 Integrated Wealth Concepts LLC 0.00% of their portfolio WALTHAM, MA 130130 $270 $270 0.00% New
92 PNC Financial Services Group, Inc. 0.00% of their portfolio Pittsburgh, PA 100100 $207 $207 0.00% Unchanged
93 Caitong International Asset Management Co., Ltd 0.00% of their portfolio HONG KONG, K3 3636 $75 $75 0.00% Added +30 +30
94 SBI Securities Co., Ltd. 0.00% of their portfolio TOKYO, M0 1414 $29 $29 0.00% Unchanged