Security Snapshot

Seanergy Maritime Holdings Corp. - Common Stock, par value $0.0001 per share (SHIP) Institutional Ownership

CUSIP: Y73760400

13F Institutional Holders and Ownership History from Q1 2023 to Q1 2026

Latest Period

Q1 2026

Institutions Reporting

66

Shares (Excl. Options)

5,330,412

Price

$12.91

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Security type / class
Equity / Common Stock, par value $0.0001 per share
Symbol
SHIP on Nasdaq
All holders as of 31 Mar 2026
Q1 2026
Total 13F shares
5,330,412
Latest holder snapshot 5 signals
Total 13F value
$68,775,912
Portfolio coverage rank
0%
Share change
+2,088,806
Value change
+$27,134,015
Number of holders
66
Issuer context Names, identifiers, and filing context for this profile. 2 identity fields
Shares outstanding
21,605,039
SEC-reported price per share
$15.47
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors

Key facts

  • SHIP - Seanergy Maritime Holdings Corp. - Common Stock, par value $0.0001 per share is tracked under CUSIP Y73760400.
  • 66 institutions reported positions in Q1 2026.
  • 3 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 48 to 66 between Q4 2025 and Q1 2026.
  • SEC-reported value moved from $29,259,085 to $68,775,912.

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 66 institutions filings for Q1 2026.

Open SEC evidence

Security key

Y73760400

Latest holder period

Q1 2026

13F holders

66

13D/G owners

3

CIK / CUSIP context first

Open Q1 2026 holders SHIP full holder history Seanergy Maritime Holdings Corp. SEC filings Seanergy Maritime Holdings Corp. company facts Seanergy Maritime Holdings Corp. insider transactions

Broader feeds

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

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
3
Security
SHIP
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Konstantakopoulos Konstantinos 10% -23% $29,860,325 -$7,586,401 2,203,714 -20% Konstantakopoulos Konstantinos 31 Mar 2026
Tsantanis Stamatios 9.6% +16% $28,785,605 +$5,358,280 2,084,403 +23% Tsantanis Stamatios 06 Mar 2026
Economou George 8.8% $21,017,832 1,848,534 Sphinx Investment Corp. 16 Mar 2026

As of 31 Mar 2026, 66 institutional investors reported holding 5,330,412 shares of Seanergy Maritime Holdings Corp. - Common Stock, par value $0.0001 per share (SHIP). This represents 25% of the company’s total 21,605,039 outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
22%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
GOLDMAN SACHS GROUP INC 3.8% 814,553 +252% 0% $10,515,879
RENAISSANCE TECHNOLOGIES LLC 3% 652,300 +16% 0.01% $8,421,193
TWO SIGMA INVESTMENTS, LP 2.6% 556,456 +300% 0.01% $7,183,847
ACADIAN ASSET MANAGEMENT LLC 1.6% 335,588 +3969% 0.01% $4,323,000
Walleye Capital LLC 1.3% 287,509 -2.4% 0.02% $3,711,741
MORGAN STANLEY 1.1% 233,686 +28% 0% $3,016,887
MARSHALL WACE, LLP 0.81% 174,347 0% $2,250,820
Point72 Asset Management, L.P. 0.8% 172,601 +11% 0% $2,228,279
BANK OF AMERICA CORP /DE/ 0.74% 159,972 +5.8% 0% $2,065,239
JANE STREET GROUP, LLC 0.57% 123,113 +23% 0% $1,589,389
SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.52% 112,679 -46% 0% $1,454,686
Jump Financial, LLC 0.51% 111,100 +47% 0.02% $1,434,301
Numerai GP LLC 0.5% 109,068 0.14% $1,408,068
BNP PARIBAS FINANCIAL MARKETS 0.44% 96,135 0% 0% $1,241,103
D. E. Shaw & Co., Inc. 0.42% 90,352 +119% 0% $1,166,444
MILLENNIUM MANAGEMENT LLC 0.42% 89,846 -69% 0% $1,159,912
Qube Research & Technologies Ltd 0.41% 89,255 +371% 0% $1,152,282
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.38% 82,557 +26% 0% $1,065,811
RAYMOND JAMES FINANCIAL INC 0.38% 81,320 0% $1,049,841
Engineers Gate Manager LP 0.37% 79,359 +81% 0.01% $1,024,525
Squarepoint Ops LLC 0.35% 75,383 +186% 0% $973,195
PDT Partners, LLC 0.32% 68,506 +304% 0.05% $884,412
Centiva Capital, LP 0.29% 62,521 +301% 0.04% $807,146
CITADEL ADVISORS LLC 0.23% 49,459 -12% 0% $638,516
JPMORGAN CHASE & CO 0.21% 44,487 +598% 0% $534,289

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
13
Latest
Q1 2026
Rows shown
1-13 of 13
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q1 5,330,412 $68,775,912 +$27,134,015 $12.91 66
2025 Q4 3,169,221 $29,259,085 +$9,443,450 $9.23 48
2025 Q3 2,175,339 $17,967,650 +$3,891,941 $8.26 46
2025 Q2 1,723,994 $10,879,030 -$3,816,516 $6.31 33
2025 Q1 2,322,256 $14,865,074 -$12,785,440 $6.40 38
2024 Q4 4,298,389 $29,878,552 +$1,996,878 $6.95 57
2024 Q3 3,766,992 $46,791,321 -$6,551,129 $12.42 53
2024 Q2 4,355,327 $42,987,378 +$22,303,409 $9.87 56
2024 Q1 2,107,408 $18,335,648 +$8,551,951 $8.70 44
2023 Q4 1,197,259 $9,374,631 +$6,145,888 $7.83 32
2023 Q3 416,369 $2,307,343 +$615,701 $5.52 22
2023 Q2 311,656 $1,504,086 -$1,156,467 $4.82 20
2023 Q1 536,725 $2,719,664 +$2,719,610 $5.06 20
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