CMPX Institutional Ownership & Shareholders
COMPASS THERAPEUTICS INC (CMPX) is currently held by 204 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $359.80M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Tang Capital Management Llc is currently the largest disclosed institutional shareholder of CMPX tracked by InsiderSet, reporting ownership valued at approximately $39.40M 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 $14.15M, representing an estimated loss of -64.09% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 61% of the total disclosed CMPX value among the investors covered in this analysis. Major shareholders include Tang Capital Management Llc, Orbimed Advisors Llc, Suvretta Capital Management, Llc, and several other long-term asset managers with concentrated positions in COMPASS THERAPEUTICS INC (CMPX).
This page ranks the largest institutional CMPX 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
204
Total Reported Value
$359.80M
Largest Holder
Tang Capital Management Llc
Largest Position
$39.40M
Insider Transactions (90d)
2
Latest Filing Quarter
Q2 2026
New Institutional Positions
90
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Tang Capital Management Llc | 1.79% | 17,990,782 | $39,399,813 | $14,149,750 | -$25,250,063 | -64.09% | |
| Orbimed Advisors Llc | 0.63% | 15,219,994 | $33,331,787 | $11,970,525 | -$21,361,262 | -64.09% | |
| Suvretta Capital Management, Llc | 0.65% | 14,101,159 | $30,881,538 | $11,090,562 | -$19,790,976 | -64.09% | |
| Blackrock, Inc. | 0.00% | 11,281,781 | $24,707,100 | $8,873,121 | -$15,833,979 | -64.09% | |
| State Street Corp | 0.00% | 9,953,653 | $21,798,500 | $7,828,548 | -$13,969,952 | -64.09% | |
| Enavate Sciences Gp, Llc | 4.94% | 7,788,150 | $17,056,049 | $6,125,380 | -$10,930,669 | -64.09% | |
| Vivo Capital, Llc | 1.55% | 7,757,060 | $16,987,961 | $6,100,928 | -$10,887,033 | -64.09% | |
| Vanguard Capital Management Llc | 0.00% | 6,118,782 | $13,400,133 | $4,812,422 | -$8,587,711 | -64.09% | |
| Palo Alto Investors Lp | 1.76% | 5,831,813 | $12,771,670 | $4,586,721 | -$8,184,949 | -64.09% | |
| Millennium Management Llc | 0.01% | 4,713,247 | $10,322,011 | $3,706,969 | -$6,615,042 | -64.09% | |
| Geode Capital Management, Llc | 0.00% | 3,815,189 | $8,357,450 | $3,000,646 | -$5,356,804 | -64.10% | |
| Vanguard Portfolio Management Llc | 0.00% | 3,771,032 | $8,258,560 | $2,965,917 | -$5,292,643 | -64.09% | |
| Qube Research & Technologies Ltd | 0.01% | 3,687,489 | $8,075,601 | $2,900,210 | -$5,175,391 | -64.09% | |
| Blue Owl Capital Holdings Lp | 1.21% | 3,624,076 | $7,936,726 | $2,850,336 | -$5,086,390 | -64.09% | |
| Citadel Advisors Llc | 0.00% | 3,570,674 | $7,819,776 | $2,808,335 | -$5,011,441 | -64.09% | |
| Goldman Sachs Group Inc | 0.00% | 3,531,000 | $7,732,890 | $2,777,132 | -$4,955,759 | -64.09% | |
| Rock Springs Capital Management Lp | 0.38% | 3,524,929 | $7,719,595 | $2,772,357 | -$4,947,238 | -64.09% | |
| Aqr Capital Management Llc | 0.00% | 3,509,137 | $7,685,011 | $2,759,936 | -$4,925,075 | -64.09% | |
| Birchview Capital, Lp | 1.72% | 1,675,000 | $3,668,250 | $1,317,388 | -$2,350,863 | -64.09% | |
| Kingdon Capital Management, L.L.C. | 0.41% | 1,400,000 | $3,066,000 | $1,101,100 | -$1,964,900 | -64.09% | |
| Fisher Asset Management, Llc | 0.00% | 1,391,890 | $3,048,238 | $1,094,721 | -$1,953,517 | -64.09% | |
| Royce & Associates Lp | 0.02% | 1,336,780 | $2,927,548 | $1,051,377 | -$1,876,171 | -64.09% | |
| Fmr Llc | 0.00% | 1,212,196 | $2,654,709 | $953,392 | -$1,701,317 | -64.09% | |
| Adage Capital Partners Gp, L.L.C. | 0.00% | 1,186,500 | $2,598,435 | $933,182 | -$1,665,253 | -64.09% | |
| Acadian Asset Management Llc | 0.00% | 1,161,231 | $2,537,000 | $913,308 | -$1,623,692 | -64.00% | |
| Northern Trust Corp | 0.00% | 1,140,914 | $2,498,603 | $897,329 | -$1,601,274 | -64.09% | |
| Atle Fund Management Ab | 0.62% | 1,048,593 | $2,296,418 | $824,718 | -$1,471,700 | -64.09% | |
| Nuveen, Llc | 0.00% | 1,010,562 | $2,213,130 | $794,807 | -$1,418,323 | -64.09% | |
| Squarepoint Ops Llc | 0.00% | 1,007,507 | $2,206,440 | $792,404 | -$1,414,036 | -64.09% | |
| Vanguard Fiduciary Trust Co | 0.00% | 1,000,938 | $2,192,054 | $787,238 | -$1,404,816 | -64.09% | |
| First Trust Advisors Lp | 0.00% | 807,004 | $1,767,338 | $634,709 | -$1,132,629 | -64.09% | |
| Jpmorgan Chase & Co | 0.00% | 789,399 | $1,705,102 | $620,862 | -$1,084,240 | -63.59% | |
| Kvp Capital Advisors, Lp | 1.24% | 771,000 | $1,688,490 | $606,392 | -$1,082,099 | -64.09% | |
| Morgan Stanley | 0.00% | 735,186 | $1,610,058 | $578,224 | -$1,031,834 | -64.09% | |
| Citigroup Inc | 0.00% | 713,907 | $1,563,457 | $561,488 | -$1,001,969 | -64.09% | |
| Ubs Group Ag | 0.00% | 712,763 | $1,560,951 | $560,588 | -$1,000,363 | -64.09% | |
| Burkehill Global Management, Lp | 0.06% | 700,000 | $1,533,000 | $550,550 | -$982,450 | -64.09% | |
| Point72 Asset Management, L.P. | 0.00% | 686,577 | $1,503,604 | $539,993 | -$963,611 | -64.09% | |
| Acuta Capital Partners, Llc | 0.91% | 595,213 | $1,303,516 | $468,135 | -$835,381 | -64.09% | |
| Bank Of America Corp | 0.00% | 566,919 | $1,241,553 | $445,882 | -$795,671 | -64.09% | |
| Cm Management, Llc | 0.77% | 550,000 | $1,204,500 | $432,575 | -$771,925 | -64.09% | |
| Dimensional Fund Advisors Lp | 0.00% | 541,178 | $1,184,772 | $425,636 | -$759,136 | -64.07% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | 523,777 | $1,147,072 | $411,951 | -$735,121 | -64.09% | |
| Alliancebernstein L.P. | 0.00% | 161,880 | $856,345 | $127,319 | -$729,026 | -85.13% | |
| Artia Global Partners Lp | 0.16% | 383,200 | $839,208 | $301,387 | -$537,821 | -64.09% | |
| Wellington Management Group Llp | 0.00% | 378,687 | $829,324 | $297,837 | -$531,487 | -64.09% | |
| Arrowmark Colorado Holdings Llc | 0.03% | 364,742 | $798,785 | $286,870 | -$511,915 | -64.09% | |
| Bank Of New York Mellon Corp | 0.00% | 351,032 | $768,760 | $276,087 | -$492,673 | -64.09% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 139,642 | $738,706 | $109,828 | -$628,878 | -85.13% | |
| Marshall Wace, Llp | 0.00% | 334,869 | $733,364 | $263,374 | -$469,990 | -64.09% |
Frequently asked questions about CMPX
Who are the largest institutional holders of CMPX?
The largest institutional holders of CMPX reported in the latest SEC Form 13F filings include Tang Capital Management Llc, Orbimed Advisors Llc, Suvretta Capital Management, Llc, Blackrock, Inc., and State Street Corp. InsiderSet ranks institutional holders by their latest reported CMPX position.
What is CMPX institutional ownership?
This page tracks CMPX positions reported by institutional investment managers through SEC Form 13F. COMPASS THERAPEUTICS INC (CMPX) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own CMPX?
InsiderSet currently tracks 204 institutional managers reporting CMPX 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 CMPX shareholders.
How much CMPX stock do institutions own?
Institutional investment managers disclosed approximately $359.80M in CMPX holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was CMPX institutional ownership last updated?
The latest CMPX 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 CMPX 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 CMPX position after the reporting date.
Are institutions buying or selling CMPX?
Institutional buying and selling can be analyzed by comparing CMPX positions across consecutive 13F reporting periods. InsiderSet's CMPX Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View CMPX ownership changes.
How has CMPX institutional ownership changed over time?
InsiderSet tracks CMPX institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.