MAIA BIOTECHNOLOGY INC MAIA
COM · Common Stock · CUSIP 552641102
- SectorHealth care
- IndustryPharmaceutical Preparations
- HeadquartersChicago, IL
- FilingsSEC EDGAR
* 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: 60.8m as of 2026-08-10, 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 ≈ $1.44.
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 10 |
| Q4 2022 | 7 |
| Q1 2023 | 7 |
| Q2 2023 | 13 |
| Q3 2023 | 15 |
| Q4 2023 | 23 |
| Q1 2024 | 21 |
| Q2 2024 | 22 |
| Q3 2024 | 18 |
| Q4 2024 | 21 |
| Q1 2025 | 21 |
| Q2 2025 | 21 |
| Q3 2025 | 19 |
| Q4 2025 | 26 |
| Q1 2026 | 33 |
| Q2 2026 | 36 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 7 | 8 |
| Q4 2024 | 12 | 6 |
| Q1 2025 | 9 | 8 |
| Q2 2025 | 14 | 4 |
| Q3 2025 | 8 | 7 |
| Q4 2025 | 16 | 2 |
| Q1 2026 | 18 | 8 |
| Q2 2026 | 22 | 13 |
Biggest buyers
| RENAISSANCE TECHNOLOGIES LLC | New | +415.7k |
| VANGUARD CAPITAL MANAGEMENT LLC | Added | +339.2k |
| BlackRock, Inc. | Added | +275.0k |
| Bleakley Financial Group, LLC | New | +181.6k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +143.9k |
| VANGUARD FIDUCIARY TRUST CO | Added | +137.4k |
| MORGAN STANLEY | Added | +90.2k |
| NORTHERN TRUST CORP | Added | +72.6k |
| STATE STREET CORP | Added | +62.8k |
| TWO SIGMA INVESTMENTS, LP | New | +50.4k |
Biggest sellers
| Solas Capital Management, LLC | Reduced | -1.3m |
| Cable Car Capital, LP | Reduced | -133.9k |
| CORSAIR CAPITAL MANAGEMENT, L.P. | Sold out | -100.0k |
| Creative Planning | Sold out | -28.6k |
| RITHOLTZ WEALTH MANAGEMENT | Sold out | -23.1k |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | Sold out | -20.1k |
| UBS Group AG | Reduced | -18.5k |
| Catalyst Funds Management Pty Ltd | Sold out | -10.8k |
| Cambridge Investment Research Advisors, Inc. | Sold out | -10.6k |
| CURIO WEALTH, LLC | Sold out | -2.0k |
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.
| Holder | Stake |
|---|---|
| FGMK Business Holdings, LLC 13G · passive investor new · filed 2025-03-03 | 10.0% |
Vitoc Vlad
13D · may seek influence
filed 2025-12-04
Stated purposeThe Reporting Person acquired the Common Stock reported in this Statement for investment purposes. The Reporting Person may in the future acquire additional Common Stock or dispose of some or all of the Common Stock held by the Reporting Person in open-market transactions or privately negotiated transactions, on such terms and at such times as the Reporting Person may deem advisable. The Reporting Person may engage in short selling or hedging or similar transactions with respect to the Common Stock, on such terms and at such times as the Reporting Person may deem advisable, subject to applicable law. The Reporting Person has no present plan or proposal that would result in any of the actions described in paragraphs (a) through (j) of Item 4 of Schedule 13D. The Reporting Person reserves t… Full filing |
9.7% |
Fell to 5% or below in the last year: Solas Capital Management, LLC (4.9%, 2026-08-14)
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)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 4 | $675.4k | 0 | — | — |
| Q1 2025 | 2 | $272.5k | 0 | — | — |
| Q2 2025 | 2 | $180.0k | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 5 | $444.4k | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 3 | $204.3k | 0 | — | — |
| Q3 2026 | 2 | $352.4k | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-09-14 | Vitoc Vlad Chief Executive Officer, director | Bought | $100.0k73.0k shares |
| 2026-09-10 | Guerrero Ramiro Director | Bought | $49.6k37.6k shares |
| 2026-08-28 | Guerrero Ramiro Director | Bought | $62.9k46.6k shares |
| 2026-08-27 | Guerrero Ramiro Director | Bought | $108.8k78.2k shares |
| 2026-08-26 | Guerrero Ramiro Director | Bought | $12.4k8.9k shares |
| 2026-08-24 | Guerrero Ramiro Director | Bought | $2.4k1.8k shares |
| 2026-08-20 | Guerrero Ramiro Director | Bought | $16.3k11.9k shares |
| 2026-06-01 | Vitoc Vlad Chief Executive Officer, director | Bought | $101.1k72.7k shares |
| 2026-06-01 | Smith Stan Director · See Footnote | Bought | $100.5k75.0k shares |
| 2026-06-01 | Gryaznov Sergei Chief Scientific Officer | Bought | $2.7k2.0k shares |
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
| Manager | Shares | Change |
|---|---|---|
| Solas Capital Management, LLC 2.34% of their portfolio | 3.0m $4.4m | Reduced -1.3m |
| Alyeska Investment Group, L.P. 0.01% of their portfolio | 2.5m $3.6m | Unchanged |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 2.4m $3.5m | Added +339.2k |
| 683 Capital Management, LLC 0.14% of their portfolio | 1.1m $1.5m | Unchanged |
| Centric Wealth Management 0.17% of their portfolio | 796.7k $1.1m | Unchanged |
| Cable Car Capital, LP 0.03% of their portfolio | 514.6k $741.0k | Reduced -133.9k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 504.4k $726.6k | Added +143.9k |
| Bleichroeder LP 0.13% of their portfolio | 500.0k $720.0k | Unchanged |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 415.7k $598.6k | New |
| BlackRock, Inc. 0.00% of their portfolio | 403.0k $580.3k | Added +275.0k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 336.7k $484.8k | Added +137.4k |
| STATE STREET CORP 0.00% of their portfolio | 201.8k $290.5k | Added +62.8k |
| Bleakley Financial Group, LLC 0.00% of their portfolio | 181.6k $261.5k | New |
| NORTHERN TRUST CORP 0.00% of their portfolio | 125.2k $180.2k | Added +72.6k |
| MORGAN STANLEY 0.00% of their portfolio | 104.0k $149.8k | Added +90.2k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 76.0k $109.4k | Added +40.0k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 50.4k $72.6k | New |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 44.3k $63.9k | New |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 35.2k $50.7k | New |
| PVG ASSET MANAGEMENT CORP 0.03% of their portfolio | 34.1k $49.2k | Unchanged |
| UBS Group AG 0.00% of their portfolio | 33.4k $48.1k | Reduced -18.5k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 24.9k $35.8k | New |
| Cetera Investment Advisers 0.00% of their portfolio | 22.7k $32.8k | New |
| LAZARI CAPITAL MANAGEMENT, INC. 0.01% of their portfolio | 21.8k $31.3k | New |
| Atria Investments, Inc 0.00% of their portfolio | 21.1k $30.4k | New |
| Centerpoint Advisory Group 0.01% of their portfolio | 15.7k $22.7k | Unchanged |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC 0.00% of their portfolio | 14.8k $21.3k | Unchanged |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 11.4k $16.4k | Unchanged |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 8.3k $12.0k | Unchanged |
| Daytona Street Capital LLC 0.01% of their portfolio | 7.5k $10.8k | Unchanged |
| BARCLAYS PLC 0.00% of their portfolio | 4.2k $6.0k | New |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 3.2k $4.6k | New |
| JONES FINANCIAL COMPANIES LLLP 0.00% of their portfolio | 228 $321 | Unchanged |
| Caitong International Asset Management Co., Ltd 0.00% of their portfolio | 210 $302 | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 200 $288 | New |
| CITIGROUP INC 0.00% of their portfolio | 150 $216 | Added +128 |