ALXO
Alx Oncology Holdings Inc
$2.19
+0.12 (+5.80%)
At close · Jul 6
Market Cap
$314.20M
Shares
134,562,917
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 70
Total Value: $206,179,315
Total Shares: 102,832,596
Institutional Ownership Trend
23 quarters
Holder Concentration
Across 69 13F filers · Δ vs Dec 31, 2025Top Holder
13.8%
−19.1 pts
Top 5
55.9%
−13.4 pts
Top 10
77.2%
−9.2 pts
HHI
814
Broadly held−700
Quarterly Activity
vs Dec 31, 2025
New
25
Increased
18
Decreased
12
Sold Out
12
Unchanged
15
Holder count:
+13
Institutional value:
+519.0%
Shares held:
+248.9%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mid Redmile Group, LLC | +4,699,470 | 7,964,188 | |
| Large Driehaus Capital Management LLC | +4,311,738 | 5,734,620 | |
| Large MARSHALL WACE, LLP | +3,730,840 | 3,757,216 | |
| Small venBio Partners LLC | +3,184,713 | 12,884,638 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | +1,178,380 | 1,362,707 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mega MILLENNIUM MANAGEMENT LLC | −1,316,060 | 1,988,559 | |
| Large ACADIAN ASSET MANAGEMENT LLC | −273,248 | 1,101,025 | |
| Mega CITADEL ADVISORS LLC | −133,432 | 37,000 | |
| Mega JANE STREET GROUP, LLC | −111,360 | 95,101 | |
| Mid GSA CAPITAL PARTNERS LLP | −23,667 | 68,987 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mid RA CAPITAL MANAGEMENT, L.P. | 13,011,849 | $26,088,757 | |
| Mid TCG Crossover Management, LLC | 13,011,849 | $26,088,757 | |
| — HBM Healthcare Investments (Cayman) Ltd. | 8,590,692 | $17,224,337 | |
| Large Blackstone Inc. | 5,826,544 | $11,682,220 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC | 4,179,736 | $8,380,370 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD GROUP INC | 1,630,940 | $1,842,961 | |
| Large TWO SIGMA ADVISERS, LP | 710,400 | $802,752 | |
| Mega BANK OF MONTREAL /CAN/ | 474,781 | $536,502 | |
| Small Seven Fleet Capital Management LP | 117,817 | $133,133 | |
| Small NAN FUNG TRINITY (HK) LTD | 41,950 | $47,403 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Mid TCG Crossover Management, LLC | $26,088,757 | 12.65% | 13,011,849 | Shares | Sole | 2026-05-15 | ||||
| Mid RA CAPITAL MANAGEMENT, L.P. | $26,088,757 | 12.65% | 13,011,849 | Shares | Sole | 2026-05-15 | ||||
| Small venBio Partners LLC | $25,833,699 | 12.53% | 12,884,638 | Shares | Sole | 2026-05-15 | ||||
| — HBM Healthcare Investments (Cayman) Ltd. | $17,224,337 | 8.35% | 8,590,692 | Shares | Sole | 2026-05-15 | ||||
| Mid Redmile Group, LLC | $15,968,196 | 7.74% | 7,964,188 | Shares | Sole | 2026-05-15 | ||||
| Large Blackstone Inc. | $11,682,220 | 5.67% | 5,826,544 | Shares | Other | 2026-05-15 | ||||
| Large Driehaus Capital Management LLC | $11,497,913 | 5.58% | 5,734,620 | Shares | Sole | 2026-05-15 | ||||
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $8,380,370 | 4.06% | 4,179,736 | Shares | Defined | 2026-05-15 | ||||
| Large MARSHALL WACE, LLP | $7,533,216 | 3.65% | 3,757,216 | Shares | Other | 2026-05-15 | ||||
| Mid Vivo Capital, LLC | $6,385,349 | 3.10% | 3,184,713 | Shares | Sole | 2026-05-20 | ||||
| Small Almitas Capital LLC | $6,363,537 | 3.09% | 3,173,834 | Shares | Sole | 2026-05-15 | ||||
| Small 5AM Venture Management, LLC | $6,129,936 | 2.97% | 3,057,325 | Shares | Sole | 2026-05-15 | ||||
| Mid ORBIMED ADVISORS LLC | $5,746,843 | 2.79% | 2,866,256 | Shares | Defined | 2026-05-15 | ||||
| Large ADAGE CAPITAL PARTNERS GP, L.L.C. | $4,010,000 | 1.94% | 2,000,000 | Shares | Sole | 2026-05-15 | ||||
| Mega MILLENNIUM MANAGEMENT LLC | $3,987,060 | 1.93% | 1,988,559 | Shares | Sole | 2026-05-15 | ||||
| Mega TWO SIGMA INVESTMENTS, LP | $3,183,605 | 1.54% | 1,587,833 | Shares | Sole | 2026-05-15 | ||||
| Small Squadron Capital Management LLC | $2,927,300 | 1.42% | 1,460,000 | Shares | Sole | 2026-05-15 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $2,664,458 | 1.29% | 1,328,907 | Shares | Other | 2026-05-15 | ||||
| Large ACADIAN ASSET MANAGEMENT LLC | $2,207,555 | 1.07% | 1,101,025 | Shares | Defined | 2026-05-13 | ||||
| Large Ensign Peak Advisors, Inc | $1,905,852 | 0.92% | 950,550 | Shares | Sole | 2026-05-13 | ||||
| Mega UBS Group AG | $1,834,080 | 0.89% | 914,754 | Shares | Defined | 2026-05-05 | ||||
| Large RENAISSANCE TECHNOLOGIES LLC | $1,468,860 | 0.71% | 732,599 | Shares | Sole | 2026-05-14 | ||||
| Mega BANK OF AMERICA CORP /DE/ Bank | $1,158,454 | 0.56% | 577,783 | Shares | Defined | 2026-05-18 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $989,341 | 0.48% | 493,437 | Shares | Defined | 2026-05-15 | ||||
| Mega BlackRock, Inc. | $897,835 | 0.44% | 447,799 | Shares | Sole | 2026-05-13 | ||||
| Mega VANGUARD FIDUCIARY TRUST CO Bank | $590,428 | 0.29% | 294,478 | Shares | Defined | 2026-05-08 | ||||
| Mega STATE STREET CORP | $352,535 | 0.17% | 175,828 | Shares | Defined | 2026-05-15 | ||||
| Mega GOLDMAN SACHS GROUP INC | $277,878 | 0.13% | 138,593 | Shares | Defined | 2026-05-15 | ||||
| Mega NORTHERN TRUST CORP Bank | $274,612 | 0.13% | 136,964 | Shares | Defined | 2026-05-14 | ||||
| Large Qube Research & Technologies Ltd | $215,832 | 0.10% | 107,647 | Shares | Sole | 2026-05-15 | ||||
| Large BANK OF NOVA SCOTIA Bank | $212,245 | 0.10% | 105,858 | Shares | Sole | 2026-05-14 | ||||
| Mega MORGAN STANLEY | $198,162 | 0.10% | 98,835 | Shares | Defined | 2026-05-15 | ||||
| Mega JANE STREET GROUP, LLC | $190,677 | 0.09% | 95,101 | Shares | Defined | 2026-05-12 | ||||
| Large IEQ CAPITAL, LLC | $184,927 | 0.09% | 92,233 | Shares | Sole | 2026-05-15 | ||||
| Mid Brevan Howard Capital Management LP | $159,174 | 0.08% | 79,389 | Shares | Defined | 2026-05-15 | ||||
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC | $152,524 | 0.07% | 76,072 | Shares | Sole | 2026-05-15 | ||||
| Large OMERS ADMINISTRATION Corp | $150,375 | 0.07% | 75,000 | Shares | Sole | 2026-05-15 | ||||
| Mid GSA CAPITAL PARTNERS LLP | $138,318 | 0.07% | 68,987 | Shares | Sole | 2026-05-08 | ||||
| Mid XTX Topco Ltd | $88,502 | 0.04% | 44,141 | Shares | Defined | 2026-05-15 | ||||
| Large Point72 Asset Management, L.P. | $82,395 | 0.04% | 41,095 | Shares | Defined | 2026-05-15 | ||||
| Large WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | $76,183 | 0.04% | 37,997 | Shares | Sole | 2026-04-08 | ||||
| Mid Graham Capital Management, L.P. | $75,666 | 0.04% | 37,739 | Shares | Sole | 2026-05-15 | ||||
| Mega CITADEL ADVISORS LLC | $74,185 | 0.04% | 37,000 | Call | Defined | 2026-05-15 | ||||
| Micro HC Advisors, LLC | $45,914 | 0.02% | 22,900 | Shares | Sole | 2026-05-05 | ||||
| Mid Callan Family Office, LLC Family Office | $44,950 | 0.02% | 22,419 | Shares | Sole | 2026-05-13 | ||||
| Micro CAXTON CORP | $41,996 | 0.02% | 20,946 | Shares | Sole | 2026-05-14 | ||||
| Mid NINE MASTS CAPITAL Ltd | $41,349 | 0.02% | 20,623 | Shares | Sole | 2026-05-13 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $39,498 | 0.02% | 19,700 | Put | Other | 2026-05-15 | ||||
| Small JSF Financial, LLC | $35,087 | 0.02% | 17,500 | Shares | Sole | 2026-05-07 | ||||
| Mid MONETA GROUP INVESTMENT ADVISORS LLC | $30,467 | 0.01% | 15,196 | Shares | Sole | 2026-05-12 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $28,270 | 0.01% | 14,100 | Call | Other | 2026-05-15 | ||||
| Large Lido Advisors, LLC | $26,506 | 0.01% | 13,220 | Shares | Sole | 2026-05-13 | ||||
| Mega FMR LLC | $26,036 | 0.01% | 12,986 | Shares | Defined | 2026-05-15 | ||||
| Small Abel Hall, LLC | $25,258 | 0.01% | 12,598 | Shares | Sole | 2026-04-28 | ||||
| Mid Beacon Pointe Advisors, LLC | $25,062 | 0.01% | 12,500 | Shares | Sole | 2026-05-15 | ||||
| Small TWO SIGMA SECURITIES, LLC Broker-Dealer | $22,040 | 0.01% | 10,993 | Shares | Sole | 2026-05-15 | ||||
| Mega Invesco Ltd. | $22,014 | 0.01% | 10,980 | Shares | Defined | 2026-05-12 | ||||
| Mega BARCLAYS PLC | $21,082 | 0.01% | 10,515 | Shares | Defined | 2026-05-15 | ||||
| Mega HSBC HOLDINGS PLC | $20,260 | 0.01% | 10,105 | Shares | Defined | 2026-04-30 | ||||
| Mega Vanguard Global Advisers, LLC | $19,985 | 0.01% | 9,968 | Shares | Defined | 2026-05-08 | ||||
| Mega ROYAL BANK OF CANADA Bank | $3,767 | 0.00% | 1,879 | Shares | Defined | 2026-05-15 | ||||
| Large NISA INVESTMENT ADVISORS, LLC | $2,217 | 0.00% | 1,106 | Shares | Sole | 2026-04-30 | ||||
| Small Bradley & Co. Private Wealth Management, LLC | $2,005 | 0.00% | 1,000 | Shares | Sole | 2026-05-13 | ||||
| Mid EverSource Wealth Advisors, LLC | $1,814 | 0.00% | 905 | Shares | Sole | 2026-05-18 | ||||
| Mega BNP PARIBAS ARBITRAGE, SA | $934 | 0.00% | 466 | Shares | Defined | 2026-05-12 | ||||
| Mega PNC FINANCIAL SERVICES GROUP, INC. | $200 | 0.00% | 100 | Shares | Defined | 2026-05-08 | ||||
| Mega JPMORGAN CHASE & CO | $198 | 0.00% | 99 | Shares | Defined | 2026-05-13 | ||||
| Large CWM, LLC | $130 | 0.00% | 65 | Shares | Sole | 2026-05-14 | ||||
| Mid Optiver Holding B.V. | $54 | 0.00% | 27 | Shares | Defined | 2026-05-15 | ||||
| Mega CITIGROUP INC | $34 | 0.00% | 17 | Shares | Defined | 2026-05-11 | ||||
| Mid SBI Securities Co., Ltd. Broker-Dealer | $28 | 0.00% | 14 | Shares | Defined | 2026-04-28 | ||||
| Small Caitong International Asset Management Co., Ltd | $12 | 0.00% | 6 | Shares | Sole | 2026-05-11 | ||||
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