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IMPP

Imperial Petroleum Inc./Marshall Islands
$4.87 +0.01 (+0.21%) At close · Jul 7
Market Cap
$220.19M
Shares
45,213,658

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 60
Total Value: $93,481,550
Total Shares: 21,841,490

Institutional Ownership Trend

12 quarters

Holder Concentration

Across 60 13F filers · Δ vs Dec 31, 2025
Top Holder
21.6%
Jun 2023 → Mar 2026 · range 20.3% – 58.0%
−4.2 pts
Top 5
56.3%
Jun 2023 → Mar 2026 · range 56.3% – 92.2%
−12.5 pts
Top 10
77.5%
Jun 2023 → Mar 2026 · range 77.5% – 98.5%
−6.9 pts
HHI
918
Jun 2023 → Mar 2026 · range 918 – 3,693
Broadly held−380

Quarterly Activity

vs Dec 31, 2025
New
21
Increased
21
Decreased
16
Sold Out
13
Unchanged
2
Holder count: +8
Institutional value: +52.7%
Shares held: +29.2%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Small Anson Funds Management LP +2,573,601 6,933,360
Large MARSHALL WACE, LLP +777,234 806,621
Large ACADIAN ASSET MANAGEMENT LLC +662,885 1,836,743
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP +558,015 1,868,997
Large RENAISSANCE TECHNOLOGIES LLC +314,796 549,140

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Micro Deuterium Capital Management, LLC −772,332 826,754
Mega UBS Group AG −196,342 207,405
Mid Susquehanna Portfolio Strategies, LLC −169,026 84,144
Mid SIMPLEX TRADING, LLC −133,614 39,892
Mega MILLENNIUM MANAGEMENT LLC −77,456 118,153

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Large Caption Management, LLC 1,000,000 $4,280,000
Small COMMONS CAPITAL, LLC 71,000 $303,880
Small Headlands Technologies LLC 58,411 $249,999
Large Schonfeld Strategic Advisors LLC 56,298 $240,955
Mid IMC-Chicago, LLC 54,119 $231,629

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Small WEXFORD CAPITAL LP 1,129,717 $4,089,575
Micro Nipun Capital, L.P. 30,300 $109,686
Mid Virtu Financial LLC 28,288 $102,402
Large Tidal Investments LLC 27,054 $97,935
Small Revisor Wealth Management LLC 23,370 $84,599
Filter: New 21 Increased 21 Reduced 16 Sold out 13 Unchanged 2
Showing 70 of 70
All Common Calls Puts
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Holder Value (USD) % of 13F Shares Open
Small Anson Funds Management LP $14,837,390 15.87% 3,466,680
Small Anson Funds Management LP $14,837,390 15.87% 3,466,680
Micro Empery Asset Management, LP $9,839,257 10.53% 2,298,892
Large ACADIAN ASSET MANAGEMENT LLC $7,861,260 8.41% 1,836,743
Micro Empery Asset Management, LP $3,756,320 4.02% 877,645
Micro Deuterium Capital Management, LLC $3,538,507 3.79% 826,754
Large MARSHALL WACE, LLP $3,452,336 3.69% 806,621
Large PEAK6 LLC $3,244,659 3.47% 758,098
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $3,198,872 3.42% 747,400
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $3,169,768 3.39% 740,600
Large RENAISSANCE TECHNOLOGIES LLC $2,350,319 2.51% 549,140
Large Caption Management, LLC $2,140,000 2.29% 500,000
Large Caption Management, LLC $2,140,000 2.29% 500,000
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,630,667 1.74% 380,997
Large Squarepoint Ops LLC $1,525,469 1.63% 356,418
Large Empowered Funds, LLC $1,409,190 1.51% 329,250
Large Point72 Asset Management, L.P. $1,095,525 1.17% 255,964
Mega CITADEL ADVISORS LLC $945,452 1.01% 220,900
Mega UBS Group AG $887,693 0.95% 207,405
Mid GROUP ONE TRADING LLC $817,471 0.87% 190,998
Small TOWERVIEW LLC $813,200 0.87% 190,000
Mega JANE STREET GROUP, LLC $742,338 0.79% 173,444
Mega CITADEL ADVISORS LLC $688,823 0.74% 160,940
Mid Jump Financial, LLC $655,550 0.70% 153,166
Large Centiva Capital, LP $644,670 0.69% 150,624
Mega MORGAN STANLEY $611,054 0.65% 142,770
Mega BNP PARIBAS ARBITRAGE, SA $533,823 0.57% 124,725
Mega MILLENNIUM MANAGEMENT LLC $505,694 0.54% 118,153
Mega TWO SIGMA INVESTMENTS, LP $456,312 0.49% 106,615
Mega GOLDMAN SACHS GROUP INC $421,378 0.45% 98,453
Small Allegheny Financial Group $411,051 0.44% 96,040
Mega CITADEL ADVISORS LLC $386,484 0.41% 90,300
Mid Susquehanna Portfolio Strategies, LLC $360,136 0.39% 84,144
Small COMMONS CAPITAL, LLC $303,880 0.33% 71,000
Small Headlands Technologies LLC $249,999 0.27% 58,411
Large Schonfeld Strategic Advisors LLC $240,955 0.26% 56,298
Mid IMC-Chicago, LLC $231,629 0.25% 54,119
Large Walleye Capital LLC $228,980 0.24% 53,500
Mega JPMORGAN CHASE & CO $225,299 0.24% 52,640
Mega JANE STREET GROUP, LLC $184,468 0.20% 43,100
Mid SIMPLEX TRADING, LLC $170,737 0.18% 39,892
Large Walleye Trading LLC $169,916 0.18% 39,700
Mid Quadrature Capital Ltd $167,788 0.18% 39,203
Small AXQ CAPITAL, LP $144,321 0.15% 33,720
Mid Engineers Gate Manager LP $140,114 0.15% 32,737
Mid Independent Advisor Alliance $117,747 0.13% 27,511
Mega LPL Financial LLC $104,539 0.11% 24,425
Mega GEODE CAPITAL MANAGEMENT, LLC $97,271 0.10% 22,727
Mid KESTRA PRIVATE WEALTH SERVICES, LLC $84,102 0.09% 19,650
Mid MANGROVE PARTNERS IM, LLC $83,194 0.09% 19,438
Small R Squared Ltd $77,052 0.08% 18,003
Mega JANE STREET GROUP, LLC $74,900 0.08% 17,500
Small State of Wyoming $70,470 0.08% 16,465
Large SEI INVESTMENTS CO $62,774 0.07% 14,667
Mid XTX Topco Ltd $55,978 0.06% 13,079
Large Cetera Investment Advisers $55,353 0.06% 12,933
Small INVESTMENT MANAGEMENT ASSOCIATES INC /ADV $51,360 0.05% 12,000
Large Qube Research & Technologies Ltd $48,415 0.05% 11,312
Micro PharVision Advisers, LLC $44,477 0.05% 10,392
Mid Quantbot Technologies LP $44,229 0.05% 10,334
Mid IFP Advisors, Inc $18,044 0.02% 4,216
Mega BlackRock, Inc. $8,932 0.01% 2,087
Large Walleye Trading LLC $7,704 0.01% 1,800
Mega WELLS FARGO & COMPANY/MN $4,695 0.01% 1,097
Small MCGUIRE CAPITAL ADVISORS INC $3,847 0.00% 899
Mid SBI Securities Co., Ltd. Broker-Dealer $231 0.00% 54
Mid Clearstead Advisors, LLC $55 0.00% 13
Micro VANGUARD ADVISERS INC $21 0.00% 5
Micro Moisand Fitzgerald Tamayo, LLC $8 0.00% 2
Small Caitong International Asset Management Co., Ltd $8 0.00% 2
Key facts CIK 1876581 CUSIP Y3894J187 13F (30d) 1 filings 1 filers Visit website Investor relations

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