Company · Ownership research

Seanergy Maritime Holdings Corp. SHIP

CIK 0001448397 · CUSIP Y73760400

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP Y73760400 (SHIP), not CUSIP Y73760900 (SHIP), CUSIP Y73760950 (SHIP), and does not merge CUSIPs.

This page lists the top 20 of 46 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$4.62M 559,700 shares	0.01%	+17.40K(+3.20%)Added	SEC filing ↗ Nov 13, 2025	▾
02	GOLDMAN SACHS GROUP INC CIK 886982 · View history	$1.95M 236,084 shares	0.00%	+90.84K(+62.50%)Added	SEC filing ↗ Nov 14, 2025	▾
03	MORGAN STANLEY CIK 895421 · Amended · View history	$1.26M 152,544 shares	0.00%	-1.23K(-0.80%)Reduced	SEC filing ↗ May 27, 2026	▾
04	SUSQUEHANNA INTERNATIONAL GROUP, LLP CIK 1446194 · View history	$1.11M 134,316 shares	0.00%	+56.16K(+71.90%)Added	SEC filing ↗ Nov 14, 2025	▾
05	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$762.58K 92,322 shares	0.00%	-10.82K(-10.50%)Reduced	SEC filing ↗ Nov 14, 2025	▾
06	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history	$695.94K 84,254 shares	0.00%	-2.31K(-2.70%)Reduced	SEC filing ↗ Nov 13, 2025	▾
07	CITADEL ADVISORS LLC CIK 1423053 · View history	$672.00K 81,356 shares	0.00%	+56.07K(+221.70%)Added	SEC filing ↗ Nov 14, 2025	▾
08	BlackRock, Inc. CIK 2012383 · View history	$619.84K 75,041 shares	0.00%	+536(+0.70%)Added	SEC filing ↗ Nov 12, 2025	▾
09	TWO SIGMA ADVISERS, LP CIK 1478735 · View history	$515.80K 62,446 shares	0.00%	-45.50K(-42.20%)Reduced	SEC filing ↗ Nov 14, 2025	▾
10	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$483.61K 58,548 shares	0.00%	+58.55KNew	SEC filing ↗ Nov 14, 2025	▾
11	JPMORGAN CHASE & CO CIK 19617 · Amended · View history	$367.30K 44,467 shares	0.00%	+15.99K(+56.20%)Added	SEC filing ↗ Nov 26, 2025	▾
12	Triumph Capital Management CIK 1730765 · Amended · View history	$354.51K 42,919 shares	0.10%	+42.92KNew	SEC filing ↗ Dec 23, 2025	▾
13	MACKENZIE FINANCIAL CORP CIK 919859 · View history	$344.64K 41,724 shares	0.00%	+41.72KNew	SEC filing ↗ Nov 13, 2025	▾
14	GSA CAPITAL PARTNERS LLP CIK 1362033 · View history	$324.00K 39,177 shares	0.03%	+39.18KNew	SEC filing ↗ Nov 7, 2025	▾
15	Walleye Capital LLC CIK 1758720 · View history	$314.14K 38,031 shares	0.00%	+38.03KNew	SEC filing ↗ Nov 14, 2025	▾
16	Cubist Systematic Strategies, LLC CIK 1603465 · View history	$307.87K 37,272 shares	0.00%	+37.27KNew	SEC filing ↗ Nov 14, 2025	▾
17	Jump Financial, LLC CIK 1831577 · Amended · View history	$289.10K 35,000 shares	0.00%	+24.00K(+218.30%)Added	SEC filing ↗ Aug 13, 2026	▾
18	SIMPLEX TRADING, LLC CIK 1488542 · View history	$257.00K 31,233 shares	0.01%	+14.53K(+87.00%)Added	SEC filing ↗ Nov 12, 2025	▾
19	JANE STREET GROUP, LLC CIK 1595888 · View history	$246.83K 29,882 shares	0.00%	+10.23K(+52.10%)Added	SEC filing ↗ Nov 14, 2025	▾
20	STATE STREET CORP CIK 93751 · View history	$240.84K 28,982 shares	0.00%	+622(+2.20%)Added	SEC filing ↗ Nov 14, 2025	▾

Showing 20 / 46 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

2,175,339

Not deduplicated across managers

Disclosed value

$17.97M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Seanergy Maritime Holdings Corp. · Q3 2025

Explore all 46 reporting institutions.

This page includes 20 of 46 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.