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

Latest Period

Q1 2026

Institutions Reporting

57

Shares (Excl. Options)

13,121,118

Price

$4.28

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Type / Class
Equity / Common Stock, $0.01 par value per share
Symbol
IMPP on Nasdaq
Shares outstanding
44,444,615
Price per share
$4.81
All holders as of 31 Mar 2026
Q1 2026
Total 13F shares
13,121,118
Total reported value
$56,157,437
% of total 13F portfolios
0%
Share change
-2,514,807
Value change
-$9,901,617
Number of holders
57
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Key facts

  • IMPP - Imperial Petroleum Inc./Marshall Islands - Common Stock, $0.01 par value 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.
  • 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

Latest holder context comes from 57 institutions filings for Q1 2026.

Open SEC Evidence

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

Latest 13F filings Latest 13D/G filings All securities

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 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, $0.01 par value per share (IMPP). This represents 30% of the company’s total 44,444,615 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 28% 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 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 1.9% 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 0.86% 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. 0.58% 255,964 +245% 0% $1,095,526
UBS Group AG 0.47% 207,405 -49% 0% $887,693
GROUP ONE TRADING LLC 0.43% 190,998 -26% 0.03% $817,471
TOWERVIEW LLC 0.43% 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 0.27% 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 0.22% 96,040 +65% 0.06% $411,051
Susquehanna Portfolio Strategies, LLC 0.19% 84,144 -67% 0.01% $360,136

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 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
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