MAIA · Insider trading · 13F holders · Congress trades
MAIA Biotechnology, Inc. (MAIA)
Who is buying and selling MAIA: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 2
- Insider buys, 90 days
- $352K
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
MAIA at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 2 MAIA insiders filed 5 open-market purchases worth $352K on SEC Form 4.
- 2 13F filers hold MAIA among their 50 largest positions, worth $5.1M combined. The biggest bets by portfolio weight are Solas Capital Management, LLC (2.3%) and Bleichroeder LP (0.1%).
- No member of Congress has disclosed a trade in MAIA.
- MAIA last closed at $1.18 on Oct 29, 2026.
MAIA insider trading
Between Aug 1, 2026 and Oct 29, 2026, 2 MAIA insiders filed 5 open-market purchases worth $352K on SEC Form 4.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Sep 15, 2026 | Vitoc Vlad | Chief Executive Officer, Director, 10% Owner | Buy | 73,000 | $1.37 | $100K | SEC |
| Sep 14, 2026 | Guerrero Ramiro | Director | Buy | 37,595 | $1.32 | $50K | SEC |
| Sep 1, 2026 | Guerrero Ramiro | Director | Buy | 133,790 | $1.38 | $184K | SEC |
| Aug 26, 2026 | Guerrero Ramiro | Director | Buy | 1,794 | $1.33 | $2K | SEC |
| Aug 24, 2026 | Guerrero Ramiro | Director | Buy | 11,899 | $1.37 | $16K | SEC |
Who owns MAIA? Hedge funds and superinvestors
2 13F filers hold MAIA among their 50 largest positions, worth $5.1M combined. The biggest bets by portfolio weight are Solas Capital Management, LLC (2.3%) and Bleichroeder LP (0.1%).
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Solas Capital Management, LLCHedge fund | 2.3% | $4.4M | 3,030,845 | -29.5% shares | Q2 2026 |
| Bleichroeder LPHedge fund | 0.1% | $720K | 500,000 | +0.0% shares | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 2). Screen MAIA in the grand portfolio →
MAIA stock trades by members of Congress
No member of Congress has disclosed a trade in MAIA.
MAIA questions and answers
Are insiders buying MAIA stock?
Between Aug 1, 2026 and Oct 29, 2026, 2 MAIA insiders filed 5 open-market purchases worth $352K on SEC Form 4.
Which hedge funds own MAIA?
2 13F filers hold MAIA among their 50 largest positions, worth $5.1M combined. The biggest bets by portfolio weight are Solas Capital Management, LLC (2.3%) and Bleichroeder LP (0.1%).
Has Congress traded MAIA?
No member of Congress has disclosed a trade in MAIA.
Who is the largest holder of MAIA?
Among 13F filers, Solas Capital Management, LLC reports the largest MAIA position, $4.4M (3,030,845 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Solas Capital Management, LLC's: 2.3% of its portfolio.
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