Monopar Therapeutics
MNPR- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001645469
In the last 90 days, Monopar Therapeutics insiders filed 0 open-market purchases and 3 sales; 95 institutions reported holding it in 13F filings for Q2 2026, worth $576.1M in total; no superinvestor holds it.
Holders of 5% or more of MNPR
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Monopar Therapeutics, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Janus Henderson Group PLC | 13G/A | 19.50%1.29M shares | +0.30 ppfrom 19.20% | Jan 8, 20254 filings | Nov 14, 2025 | SEC |
| Ra Capital Management, L.P. | 13G/A | 9.90%667.6K shares | 0.00 ppfrom 9.90% | Feb 14, 20253 filings | Feb 17, 2026 | SEC |
| AstraZeneca PLC | 13G/A | 7.80%522.7K shares | – | Feb 6, 20261 filing | Feb 6, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
16 Schedule 13D and 13G filings on Monopar Therapeutics, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| Aug 12, 20266:26 PM ET | Saturn V Capital Management LLCand 1 other | 13G/A | 4.70%313.4K shares | −0.50 ppfrom 5.20%Below 5% | Jun 30, 2026 | SEC |
| Aug 12, 202612:05 PM ET | Adage Capital Management, L.P.and 2 others | 13G/A | 4.76%324.2K shares | −1.47 ppfrom 6.23%Below 5% | Jun 30, 2026 | SEC |
| May 15, 20261:26 PM ET | Saturn V Capital Management LLCand 1 other | 13G | 5.20%345.6K shares | New | Jan 5, 2026 | SEC |
| May 13, 20269:10 AM ET | Adage Capital Management, L.P.and 2 others | 13G/A | 6.23%424.2K shares | −3.63 ppfrom 9.86% | Mar 31, 2026 | SEC |
| Feb 17, 20264:37 PM ET | Ra Capital Management, L.P.and 3 others | 13G/A | 9.90%667.6K shares | 0.00 ppfrom 9.90% | Dec 31, 2025 | SEC |
| Feb 6, 20269:54 AM ET | AstraZeneca PLCand 1 other | 13G/A | 7.80%522.7K shares | – | Dec 31, 2025 | SEC |
| Jan 30, 20262:32 PM ET | Tactic Pharma LLCand 2 others | 13D/A | 4.50%307.4K shares | −3.00 ppfrom 7.50%Below 5% | Jan 28, 2026 | SEC |
| Nov 14, 20254:16 PM ET | Ra Capital Management, L.P.and 3 others | 13G/A | 9.90%742.9K shares | 0.00 ppfrom 9.90% | Sep 30, 2025 | SEC |
| Nov 14, 202512:49 PM ET | Janus Henderson Group PLCand 1 other | 13G/A | 19.50%1.29M shares | +0.30 ppfrom 19.20% | Sep 30, 2025 | SEC |
| Sep 24, 20258:59 PM ET | Tactic Pharma LLCand 4 others | 13D/A | 7.50%506.2K shares | – | Sep 24, 2025 | SEC |
| Aug 14, 202510:58 AM ET | Janus Henderson Group PLCand 1 other | 13G/A | 19.20%1.17M shares | +0.60 ppfrom 18.60% | Jun 30, 2025 | SEC |
| May 14, 202511:59 AM ET | Janus Henderson Group PLCand 1 other | 13G/A | 18.60%1.13M shares | +1.40 ppfrom 17.20% | Mar 31, 2025 | SEC |
| Feb 14, 20256:25 PM ET | Ra Capital Management, L.P.and 3 others | 13G/A | 9.90%620.1K shares | – | Dec 31, 2024 | SEC |
| Feb 14, 20254:00 PM ET | Tang Capital Management LLCand 4 others | 13G/A | 0.00%0 shares | –Below 5% | Dec 31, 2024 | SEC |
| Feb 12, 20259:45 AM ET | Adage Capital Management, L.P.and 2 others | 13G | 9.86%599.2K shares | New | Dec 31, 2024 | SEC |
| Jan 8, 202511:38 AM ET | Janus Henderson Group PLCand 1 other | 13G/A | 17.20%1.05M shares | – | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
1 notice from officers, directors and other affiliates planning to sell Monopar Therapeutics shares, newest first.
| Filed (ET) | Seller | Shares to sell | Market value | Planned sale | Broker | Filing |
|---|---|---|---|---|---|---|
| Sep 24, 20264:40 PM ET | Chandler RobinsonDirector · Officer | 29.1K | $2.60M | Sep 24, 202610b5-1 | Morgan Stanley Smith Barney LLC Executive Financial Services | SEC |