Latest Period
Q1 2026
Security Snapshot
Imperial Petroleum Inc./Marshall Islands - Common Stock, par value $0.01 per share (IMPP) Institutional Ownership
CUSIP: Y3894J187
13F Institutional Holders and Ownership History from Q2 2023 to Q1 2026
Institutions Reporting
57
Shares (Excl. Options)
13,121,118
Price
$4.28
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- Security type / class
- Equity / Common Stock, par value $0.01 per share
- Symbol
- IMPP on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 13,121,118
- Total 13F value
- $56,157,437
- Portfolio coverage rank
- 0%
- Share change
- -2,514,807
- Value change
- -$9,901,617
- Number of holders
- 57
- Shares outstanding
- 44,723,834
- SEC-reported price per share
- $5.34
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
2 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- IMPP - Imperial Petroleum Inc./Marshall Islands - Common Stock, par value $0.01 per share is tracked under CUSIP Y3894J187.
- 57 institutions reported positions in Q1 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 51 to 57 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $56,386,048 to $56,157,437.
Research use
- 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.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 57 institutions filings for Q1 2026.
Security key
Y3894J187
Latest holder period
Q1 2026
13F holders
57
13D/G owners
4
CIK / CUSIP context first
Open Q1 2026 holders
IMPP full holder history
Imperial Petroleum Inc./Marshall Islands SEC filings
Imperial Petroleum Inc./Marshall Islands company facts
Imperial Petroleum Inc./Marshall Islands insider transactions
Imperial Petroleum Inc./Marshall Islands 13D/G history
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP Y3894J187:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
4
Security
IMPP
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Flawless Management Inc. | 32% | +7.7% | $76,185,262 | +$5,666,968 | 14,266,903 | +8% | Harry N. Vafias | 22 Jun 2026 |
| Anson Funds Management LP | 7.8% | +14% | $14,872,057 | -$3,831,309 | 3,466,680 | -20% | Anson Funds Management LP | 31 Mar 2026 |
| 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 Mar 2026, 57 institutional investors reported holding 13,121,118 shares of Imperial Petroleum Inc./Marshall Islands - Common Stock, par value $0.01 per share (IMPP). This represents 29% of the company’s total 44,723,834 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
28%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| Anson Funds Management LP | 7.8% | 3,466,680 | -20% | 2% | $14,837,390 |
| ACADIAN ASSET MANAGEMENT LLC | 4.1% | 1,836,743 | +56% | 0.01% | $7,854,000 |
| Empery Asset Management, LP | 2% | 877,645 | -72% | 4.5% | $3,756,321 |
| Deuterium Capital Management, LLC | 1.8% | 826,754 | -48% | 4.1% | $3,538,507 |
| MARSHALL WACE, LLP | 1.8% | 806,621 | +2645% | 0% | $3,452,337 |
| PEAK6 LLC | 1.7% | 758,098 | +32% | 0.09% | $3,244,659 |
| RENAISSANCE TECHNOLOGIES LLC | 1.2% | 549,140 | +134% | 0% | $2,350,319 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0.85% | 380,997 | -2.9% | 0% | $1,630,667 |
| Squarepoint Ops LLC | 0.8% | 356,418 | +80% | 0% | $1,525,469 |
| Empowered Funds, LLC | 0.74% | 329,250 | +139% | 0.01% | $1,409,190 |
| Point72 Asset Management, L.P. | 0.57% | 255,964 | +245% | 0% | $1,095,526 |
| UBS Group AG | 0.46% | 207,405 | -49% | 0% | $887,693 |
| GROUP ONE TRADING LLC | 0.43% | 190,998 | -26% | 0.03% | $817,471 |
| TOWERVIEW LLC | 0.42% | 190,000 | -5% | 0.53% | $813,200 |
| JANE STREET GROUP, LLC | 0.39% | 173,444 | -32% | 0% | $742,340 |
| CITADEL ADVISORS LLC | 0.36% | 160,940 | +157% | 0% | $688,823 |
| Jump Financial, LLC | 0.34% | 153,166 | +57% | 0.01% | $655,550 |
| Centiva Capital, LP | 0.34% | 150,624 | +693% | 0.03% | $644,671 |
| MORGAN STANLEY | 0.32% | 142,770 | +92% | 0% | $611,056 |
| BNP PARIBAS FINANCIAL MARKETS | 0.28% | 124,725 | 0% | 0% | $533,823 |
| MILLENNIUM MANAGEMENT LLC | 0.26% | 118,153 | -40% | 0% | $505,695 |
| TWO SIGMA INVESTMENTS, LP | 0.24% | 106,615 | +273% | 0% | $456,312 |
| GOLDMAN SACHS GROUP INC | 0.22% | 98,453 | +158% | 0% | $421,379 |
| Allegheny Financial Group | 0.21% | 96,040 | +65% | 0.06% | $411,051 |
| Susquehanna Portfolio Strategies, LLC | 0.19% | 84,144 | -67% | 0.01% | $360,136 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
12
Latest
Q1 2026
Rows shown
1-12 of 12
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 13,121,118 | $56,157,437 | -$9,901,617 | $4.28 | 57 |
| 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 |