Latest Period
Q4 2025
Security Snapshot
Imperial Petroleum Inc./Marshall Islands - Common Stock, $0.01 par value per share (IMPP) Institutional Ownership
CUSIP: Y3894J187
13F Institutional Holders and Ownership History from Q2 2023 to Q1 2026
Institutions Reporting
51
Shares (Excl. Options)
15,577,988
Price
$3.62
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- Type / Class
- Equity / Common Stock, $0.01 par value per share
- Symbol
- IMPP on Nasdaq
- Shares outstanding
- 46,069,980
- Price per share
- $4.29
- All holders as of 31 Dec 2025
- Q4 2025
- Total 13F shares
- 15,577,988
- Total reported value
- $56,386,048
- % of total 13F portfolios
- 0%
- Share change
- +5,632,892
- Value change
- +$20,233,501
- Number of holders
- 51
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Quick Takeaways
- IMPP - Imperial Petroleum Inc./Marshall Islands - Common Stock, $0.01 par value per share is tracked under CUSIP Y3894J187.
- 51 institutions reported positions in Q4 2025.
- 4 significant owners is listed from Schedule 13D/13G reporting.
What Changed
- Holder count moved from 51 to 12 between Q4 2025 and Q1 2026.
- Reported value moved from $56,386,048 to $2,931,487.
Why This Matters
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Source Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 51 institutions filings for Q4 2025.
Investment Quick Answers
What is CUSIP Y3894J187?
CUSIP Y3894J187 identifies IMPP - Imperial Petroleum Inc./Marshall Islands - Common Stock, $0.01 par value per share in SEC 13F datasets.
Where can I see the latest institutional holders?
Review the Q4 2025 holders report and the ownership history table below.
Next ownership checks
Use the next link that matches the question you still need to answer about this security.
- Latest 13F filings when you want to inspect fresh institutional portfolio moves.
- Latest Schedule 13D/13G reports when you need large-owner changes outside the 13F cycle.
- All institutional ownership pages to compare this security with other holder-history pages.
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP Y3894J187:
Significant Owners of Imperial Petroleum Inc./Marshall Islands - Common Stock, $0.01 par value per share (IMPP) based on Schedule 13D/G filings
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Flawless Management Inc. | 30% | -20% | $78,309,641 | +$2,049,509 | 13,205,673 | +2.7% | Harry N. Vafias | 01 Dec 2025 |
| Anson Funds Management LP | 6.8% | $16,349,096 | 4,359,759 | Anson Funds Management LP | 31 Dec 2025 | |||
| Empery Asset Management, LP | 5% | -31% | $10,091,906 | -$3,880,931 | 2,298,892 | -28% | Empery Asset Management, LP | 31 Mar 2026 |
| WEXFORD CAPITAL LP | 4.8% | -18% | $5,600,614 | -$392,227 | 1,681,866 | -6.5% | WEXFORD CAPITAL LP | 24 Sep 2025 |
As of 31 Dec 2025, 51 institutional investors reported holding 15,577,988 shares of Imperial Petroleum Inc./Marshall Islands - Common Stock, $0.01 par value per share (IMPP). This represents 34% of the company’s total 46,069,980 outstanding shares.
Top 25 Institutional Shareholders
The largest institutional shareholders of Imperial Petroleum Inc./Marshall Islands - Common Stock, $0.01 par value per share (IMPP) together control 33% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| Anson Funds Management LP | 9.5% | 4,359,759 | 2.2% | $15,782,328 | |
| Empery Asset Management, LP | 6.9% | 3,182,951 | 0% | 10% | $11,522,283 |
| Deuterium Capital Management, LLC | 3.5% | 1,599,086 | -0.17% | 8.4% | $5,788,691 |
| ACADIAN ASSET MANAGEMENT LLC | 2.5% | 1,173,858 | +90% | 0.01% | $4,244,000 |
| WEXFORD CAPITAL LP | 2.5% | 1,129,717 | -29% | 1.1% | $4,089,580 |
| PEAK6 LLC | 1.2% | 573,278 | +1555% | 0.06% | $2,075,266 |
| UBS Group AG | 0.88% | 403,747 | +1945% | 0% | $1,461,564 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0.85% | 392,282 | -17% | 0% | $1,420,061 |
| GROUP ONE TRADING LLC | 0.56% | 256,561 | -11% | 0.03% | $928,751 |
| JANE STREET GROUP, LLC | 0.55% | 253,978 | +3.7% | 0% | $919,400 |
| Susquehanna Portfolio Strategies, LLC | 0.55% | 253,170 | 0.01% | $916,475 | |
| RENAISSANCE TECHNOLOGIES LLC | 0.51% | 234,344 | +4.8% | 0% | $848,325 |
| TOWERVIEW LLC | 0.43% | 200,000 | -29% | 0.53% | $724,000 |
| Squarepoint Ops LLC | 0.43% | 198,144 | 0% | $717,281 | |
| MILLENNIUM MANAGEMENT LLC | 0.42% | 195,609 | 0% | $708,105 | |
| SIMPLEX TRADING, LLC | 0.38% | 173,506 | -32% | 0.02% | $628,091 |
| Empowered Funds, LLC | 0.3% | 137,670 | 0.01% | $498,365 | |
| Jump Financial, LLC | 0.21% | 97,537 | +164% | 0% | $353,083 |
| MORGAN STANLEY | 0.16% | 74,371 | +30% | 0% | $269,223 |
| Point72 Asset Management, L.P. | 0.16% | 74,172 | 0% | $268,503 | |
| BNP PARIBAS FINANCIAL MARKETS | 0.14% | 66,593 | 0% | 0% | $241,067 |
| CITADEL ADVISORS LLC | 0.14% | 62,721 | -65% | 0% | $227,050 |
| Allegheny Financial Group | 0.13% | 58,052 | -31% | 0.03% | $210,148 |
| GOLDMAN SACHS GROUP INC | 0.08% | 38,126 | -75% | 0% | $138,016 |
| PharVision Advisers, LLC | 0.07% | 30,876 | 0.06% | $111,771 |
Institutional Holders of Imperial Petroleum Inc./Marshall Islands - Common Stock, $0.01 par value per share (IMPP) across Reporting Periods
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 684,927 | $2,931,487 | -$357,608 | $4.28 | 12 |
| 2025 Q4 | 15,577,988 | $56,386,048 | +$20,233,501 | $3.62 | 51 |
| 2025 Q3 | 6,727,563 | $32,051,254 | +$6,958,374 | $4.78 | 31 |
| 2025 Q2 | 5,274,750 | $16,245,456 | -$2,176,881 | $3.08 | 25 |
| 2025 Q1 | 5,996,216 | $14,689,023 | +$1,759,395 | $2.45 | 25 |
| 2024 Q4 | 5,266,931 | $15,851,921 | +$380,314 | $3.01 | 28 |
| 2024 Q3 | 5,063,570 | $21,005,892 | +$11,172,761 | $4.15 | 25 |
| 2024 Q2 | 2,383,767 | $9,236,600 | +$4,748,607 | $3.88 | 26 |
| 2024 Q1 | 1,161,911 | $3,639,927 | +$49,127 | $3.13 | 19 |
| 2023 Q4 | 1,179,778 | $3,112,656 | -$1,835,223 | $2.64 | 21 |
| 2023 Q3 | 2,493,552 | $3,938,376 | +$3,620,885 | $1.58 | 19 |
| 2023 Q2 | 150,088 | $460,640 | +$460,640 | $3.08 | 14 |