ALXO Institutional Ownership & Shareholders
ALX ONCOLOGY HOLDINGS INC (ALXO) is currently held by 98 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $204.42M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Ra Capital Management, L.P. is currently the largest disclosed institutional shareholder of ALXO tracked by InsiderSet, reporting ownership valued at approximately $26.93M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $16.79M, representing an estimated loss of -37.68% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 70% of the total disclosed ALXO value among the investors covered in this analysis. Major shareholders include Ra Capital Management, L.P., Venbio Partners Llc, Blackrock, Inc., and several other long-term asset managers with concentrated positions in ALX ONCOLOGY HOLDINGS INC (ALXO).
This page ranks the largest institutional ALXO shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
98
Total Reported Value
$204.42M
Largest Holder
Ra Capital Management, L.P.
Largest Position
$26.93M
Insider Transactions (90d)
2
Latest Filing Quarter
Q2 2026
New Institutional Positions
122
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Ra Capital Management, L.P. | 0.23% | 13,011,849 | $26,934,527 | $16,785,285 | -$10,149,242 | -37.68% | |
| Venbio Partners Llc | 5.14% | 12,884,638 | $26,671,201 | $16,621,183 | -$10,050,018 | -37.68% | |
| Blackrock, Inc. | 0.00% | 7,399,530 | $15,317,028 | $9,545,394 | -$5,771,634 | -37.68% | |
| Redmile Group, Llc | 1.03% | 7,392,504 | $15,302,483 | $9,536,330 | -$5,766,153 | -37.68% | |
| Driehaus Capital Management Llc | 0.07% | 6,025,240 | $12,472,247 | $7,772,560 | -$4,699,687 | -37.68% | |
| Silverarc Capital Management, Llc | 1.32% | 5,744,757 | $11,891,647 | $7,410,737 | -$4,480,910 | -37.68% | |
| Tcg Crossover Management, Llc | 0.28% | 5,655,487 | $11,706,858 | $7,295,578 | -$4,411,280 | -37.68% | |
| Vanguard Capital Management Llc | 0.00% | 4,973,436 | $10,295,013 | $6,415,732 | -$3,879,281 | -37.68% | |
| Vivo Capital, Llc | 0.60% | 3,184,713 | $6,592,356 | $4,108,280 | -$2,484,076 | -37.68% | |
| Marshall Wace, Llp | 0.01% | 3,071,496 | $6,357,997 | $3,962,230 | -$2,395,767 | -37.68% | |
| 5Am Venture Management, Llc | 2.20% | 3,057,325 | $6,328,663 | $3,943,949 | -$2,384,714 | -37.68% | |
| Almitas Capital Llc | 1.46% | 2,938,431 | $6,082,552 | $3,790,576 | -$2,291,976 | -37.68% | |
| Orbimed Advisors Llc | 0.11% | 2,866,256 | $5,933,150 | $3,697,470 | -$2,235,680 | -37.68% | |
| Geode Capital Management, Llc | 0.00% | 2,787,809 | $5,771,224 | $3,596,274 | -$2,174,950 | -37.69% | |
| Two Sigma Investments, Lp | 0.00% | 2,178,176 | $4,508,824 | $2,809,847 | -$1,698,977 | -37.68% | |
| Millennium Management Llc | 0.00% | 1,543,594 | $3,195,240 | $1,991,236 | -$1,204,004 | -37.68% | |
| State Street Corp | 0.00% | 1,498,905 | $3,102,733 | $1,933,587 | -$1,169,146 | -37.68% | |
| Acadian Asset Management Llc | 0.00% | 1,313,490 | $2,713,000 | $1,694,402 | -$1,018,598 | -37.55% | |
| Jpmorgan Chase & Co | 0.00% | 1,044,728 | $2,298,401 | $1,347,699 | -$950,702 | -41.36% | |
| Northern Trust Corp | 0.00% | 935,669 | $1,936,835 | $1,207,013 | -$729,822 | -37.68% | |
| Ensign Peak Advisors, Inc | 0.00% | 950,550 | $1,905,853 | $1,226,210 | -$679,644 | -35.66% | |
| Nantahala Capital Management, Llc | 0.09% | 750,000 | $1,552,500 | $967,500 | -$585,000 | -37.68% | |
| Vanguard Portfolio Management Llc | 0.00% | 749,229 | $1,550,904 | $966,505 | -$584,399 | -37.68% | |
| Vanguard Fiduciary Trust Co | 0.00% | 743,491 | $1,539,026 | $959,103 | -$579,923 | -37.68% | |
| Goldman Sachs Group Inc | 0.00% | 742,331 | $1,536,625 | $957,607 | -$579,018 | -37.68% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 603,797 | $1,249,860 | $778,898 | -$470,962 | -37.68% |
| Adar1 Capital Management, Llc | 0.05% | 533,660 | $1,104,676 | $688,421 | -$416,255 | -37.68% | |
| Ubs Group Ag | 0.00% | 462,943 | $958,292 | $597,196 | -$361,096 | -37.68% | |
| Gsa Capital Partners Llp | 0.05% | 413,545 | $856,000 | $533,473 | -$322,527 | -37.68% | |
| Charles Schwab Investment Management Inc | 0.00% | 241,113 | $499,104 | $311,036 | -$188,068 | -37.68% | |
| Bank Of New York Mellon Corp | 0.00% | 238,447 | $493,585 | $307,597 | -$185,988 | -37.68% | |
| Bridgeway Capital Management, Llc | 0.01% | 226,072 | $467,969 | $291,633 | -$176,336 | -37.68% | |
| Atom Investors Lp | 0.04% | 219,382 | $454,121 | $283,003 | -$171,118 | -37.68% | |
| Ieq Capital, Llc | 0.00% | 175,382 | $363,041 | $226,243 | -$136,798 | -37.68% | |
| Morgan Stanley | 0.00% | 157,873 | $326,798 | $203,656 | -$123,142 | -37.68% | |
| Invesco Ltd. | 0.00% | 149,923 | $310,341 | $193,401 | -$116,940 | -37.68% | |
| Nuveen, Llc | 0.00% | 143,645 | $297,345 | $185,302 | -$112,043 | -37.68% | |
| Susquehanna International Group, Llp | 0.00% | 123,157 | $254,935 | $158,873 | -$96,062 | -37.68% | |
| Rhumbline Advisers | 0.00% | 107,902 | $223,350 | $139,194 | -$84,156 | -37.68% | |
| Deutsche Bank Ag\ | 0.00% | 107,428 | $222,376 | $138,582 | -$83,794 | -37.68% | |
| Wells Fargo & Company/Mn | 0.00% | 99,926 | $206,847 | $128,905 | -$77,942 | -37.68% | |
| Price T Rowe Associates Inc | 0.00% | 89,779 | $186,000 | $115,815 | -$70,185 | -37.73% | |
| Verdad Advisers, Lp | 0.16% | 82,200 | $170,154 | $106,038 | -$64,116 | -37.68% | |
| Bank Of America Corp | 0.00% | 76,032 | $157,386 | $98,081 | -$59,305 | -37.68% | |
| Graham Capital Management, L.P. | 0.00% | 74,821 | $154,879 | $96,519 | -$58,360 | -37.68% | |
| Xtx Topco Ltd | 0.00% | 69,657 | $144,190 | $89,858 | -$54,332 | -37.68% | |
| Metlife Investment Management, Llc | 0.00% | 64,959 | $134,465 | $83,797 | -$50,668 | -37.68% | |
| Dimensional Fund Advisors Lp | 0.00% | 95,158 | $131,835 | $122,754 | -$9,081 | -6.89% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.00% | 49,682 | $102,842 | $64,090 | -$38,752 | -37.68% | |
| Squarepoint Ops Llc | 0.00% | 46,869 | $97,019 | $60,461 | -$36,558 | -37.68% |
Frequently asked questions about ALXO
Who are the largest institutional holders of ALXO?
The largest institutional holders of ALXO reported in the latest SEC Form 13F filings include Ra Capital Management, L.P., Venbio Partners Llc, Blackrock, Inc., Redmile Group, Llc, and Driehaus Capital Management Llc. InsiderSet ranks institutional holders by their latest reported ALXO position.
What is ALXO institutional ownership?
This page tracks ALXO positions reported by institutional investment managers through SEC Form 13F. ALX ONCOLOGY HOLDINGS INC (ALXO) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own ALXO?
InsiderSet currently tracks 98 institutional managers reporting ALXO holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of ALXO shareholders.
How much ALXO stock do institutions own?
Institutional investment managers disclosed approximately $204.42M in ALXO holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was ALXO institutional ownership last updated?
The latest ALXO institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional ALXO holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its ALXO position after the reporting date.
Are institutions buying or selling ALXO?
Institutional buying and selling can be analyzed by comparing ALXO positions across consecutive 13F reporting periods. InsiderSet's ALXO Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View ALXO ownership changes.
How has ALXO institutional ownership changed over time?
InsiderSet tracks ALXO institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.