SID US Equity

NATIONAL STEEL CO

NYSE+ Compare

Materials · Steel Works, Blast Furnaces & Rolling & Finishing Mills · CIK 1049659 · FYE 1231

$1.10

-0.02 (-1.79%)

USD · as of 2026-07-28 · marketstack

Switch Ticker

Institutional ownership· 13F filers holding SID · 2026-Q1 methodology → sources →

83 holders

% of shares outstanding held

2.7%

Shares held (13F)

36,320,886

Reporting holders

Top holders

largest 83 of 83 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	RENAISSANCE TECHNOLOGIES LLC	5,019,2005.0M	$6M	0.38%	ADD 42%
2	VANGUARD CAPITAL MANAGEMENT LLC	4,431,8584.4M	$5M	0.33%	NEW
3	DIMENSIONAL FUND ADVISORS LP	3,581,2643.6M	$4M	0.27%	—
4	AMERICAN CENTURY COMPANIES INC	3,112,7703.1M	$4M	0.23%	ADD 22%
5	JANE STREET GROUP, LLC	1,854,6381.9M	$2M	0.14%	TRIM -27%
6	STATE STREET CORP	1,721,9511.7M	$2M	0.13%	ADD 4%
7	Banque Cantonale Vaudoise	1,600,0001.6M	$2M	0.12%	ADD 100%
8	UBS Group AG	1,584,2411.6M	$2M	0.12%	ADD 25%
9	GOLDMAN SACHS GROUP INC	1,129,4391.1M	$1M	0.09%	TRIM -26%
10	MORGAN STANLEY	1,036,5191.0M	$1M	0.08%	TRIM -37%
11	MARSHALL WACE, LLP	988,116988,116	$1M	0.07%	ADD 70%
12	BNP PARIBAS FINANCIAL MARKETS	914,156914,156	$1M	0.07%	ADD 90%
13	TWO SIGMA INVESTMENTS, LP	861,394861,394	$1M	0.06%	TRIM -56%
14	MILLENNIUM MANAGEMENT LLC	835,553835,553	$1M	0.06%	TRIM -74%
15	JPMORGAN CHASE & CO	851,959851,959	$1M	0.06%	ADD 9%
16	CITADEL ADVISORS LLC	807,656807,656	$1M	0.06%	TRIM -60%
17	Caption Management, LLC	663,426663,426	$822,648	0.05%	NEW
18	NORTHERN TRUST CORP	558,946558,946	$693,093	0.04%	TRIM -2%
19	XTX Topco Ltd	524,057524,057	$649,831	0.04%	TRIM -30%
20	HRT FINANCIAL LP	478,898478,898	$593,000	0.04%	TRIM -15%
21	BlackRock, Inc.	418,150418,150	$518,505	0.03%	ADD 15%
22	VAN ECK ASSOCIATES CORP	388,510388,510	$482,000	0.03%	TRIM -15%
23	BAROMETER CAPITAL MANAGEMENT INC.	374,800374,800	$464,752	0.03%	ADD 2415%
24	Headlands Technologies LLC	374,740374,740	$464,678	0.03%	ADD 800%
25	VANGUARD FIDUCIARY TRUST CO	293,007293,007	$363,329	0.02%	NEW
26	STOREBRAND ASSET MANAGEMENT AS	224,830224,830	$278,789	0.02%	—
27	Stokes Family Office, LLC	160,000160,000	$198,400	0.01%	ADD 100%
28	Engineers Gate Manager LP	138,983138,983	$172,339	0.01%	NEW
29	SUSQUEHANNA INTERNATIONAL GROUP, LLP	130,906130,906	$162,324	0.01%	TRIM -11%
30	Invesco Ltd.	124,046124,046	$153,817	0.01%	TRIM -30%
31	Virtu Financial LLC	111,195111,195	$138,000	0.01%	NEW
32	Inspire Advisors, LLC	83,85383,853	$103,978	0.01%	TRIM -10%
33	TWO SIGMA SECURITIES, LLC	80,61280,612	$99,959	0.01%	NEW
34	Point72 Asset Management, L.P.	58,38958,389	$72,402	0.00%	TRIM -65%
35	LPL Financial LLC	54,26454,264	$67,287	0.00%	ADD 154%
36	Inspire Investing, LLC	52,36952,369	$64,937	0.00%	TRIM -2%
37	EntryPoint Capital, LLC	50,46750,467	$62,579	0.00%	NEW
38	SIMPLEX TRADING, LLC	44,61344,613	$55,320	0.00%	NEW
39	Scientech Research LLC	42,39342,393	$52,567	0.00%	NEW
40	D. E. Shaw & Co., Inc.	40,85540,855	$50,660	0.00%	TRIM -73%
41	Centiva Capital, LP	40,80140,801	$50,593	0.00%	NEW
42	Plan A Wealth LLC	38,27938,279	$47,466	0.00%	ADD 4%
43	First Affirmative Financial Network	36,51136,511	$45,273	0.00%	NEW
44	SmartHarvest Portfolios, LLC	33,21633,216	$41,188	0.00%	NEW
45	TUDOR INVESTMENT CORP ET AL	31,25031,250	$38,750	0.00%	NEW
46	Tower Research Capital LLC (TRC)	30,00030,000	$37,200	0.00%	NEW
47	AXQ CAPITAL, LP	27,22627,226	$33,760	0.00%	NEW
48	BANK OF AMERICA CORP /DE/	26,03326,033	$32,281	0.00%	TRIM -96%
49	R Squared Ltd	23,70523,705	$29,394	0.00%	TRIM -28%
50	LARCH CAPITAL PARTNERS LLC	23,35223,352	$28,956	0.00%	NEW
51	SG Americas Securities, LLC	19,92919,929	$25,000	0.00%	TRIM -80%
52	HSBC HOLDINGS PLC	19,77019,770	$24,148	0.00%	NEW
53	Vanguard Personalized Indexing Management, LLC	19,21819,218	$23,830	0.00%	TRIM -35%
54	MML INVESTORS SERVICES, LLC	19,14719,147	$23,743	0.00%	ADD 8%
55	Aigen Investment Management, LP	18,95918,959	$23,509	0.00%	ADD 6%
56	WELLS FARGO & COMPANY/MN	16,50016,500	$20,460	0.00%	—
57	EverSource Wealth Advisors, LLC	15,45015,450	$19,158	0.00%	ADD 1530%
58	Vident Advisory, LLC	14,08714,087	$17,468	0.00%	TRIM -21%
59	TSFG, LLC	10,66010,660	$13,000	0.00%	NEW
60	Mariner, LLC	10,11710,117	$12,545	0.00%	TRIM -30%
61	BARCLAYS PLC	9,3329,332	$11,572	0.00%	ADD 94%
62	SBI Securities Co., Ltd.	7,0817,081	$8,780	0.00%	ADD 2%
63	OSAIC HOLDINGS, INC.	4,9004,900	$6,076	0.00%	NEW
64	PNC FINANCIAL SERVICES GROUP, INC.	4,0004,000	$4,960	0.00%	—
65	GAMMA Investing LLC	2,9382,938	$3,643	0.00%	TRIM -21%
66	Lodestone Wealth Management LLC	2,0952,095	$2,598	0.00%	—
67	Triumph Capital Management	2,0002,000	$2,480	0.00%	—
68	JFS WEALTH ADVISORS, LLC	1,7161,716	$2,128	0.00%	—
69	JONES FINANCIAL COMPANIES LLLP	1,6871,687	$2,041	0.00%	—
70	FMR LLC	1,4981,498	$1,858	0.00%	TRIM -81%
71	Ancora Advisors LLC	1,0921,092	$1,354	0.00%	NEW
72	NATIONAL BANK OF CANADA /FI/	959959	$1,150	0.00%	TRIM -51%
73	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	874874	$1,084	0.00%	TRIM -55%
74	CWM, LLC	600600	$744	0.00%	—
75	Farther Finance Advisors, LLC	568568	$721	0.00%	—
76	Parallel Advisors, LLC	516516	$640	0.00%	TRIM -83%
77	Caitong International Asset Management Co., Ltd	448448	$556	0.00%	TRIM -98%
78	SIGNATUREFD, LLC	436436	$541	0.00%	TRIM -77%
79	RHUMBLINE ADVISERS	425425	$527	0.00%	TRIM -47%
80	ASSETMARK, INC	285285	$353	0.00%	TRIM -87%
81	Allworth Financial LP	200200	$248	0.00%	—
82	HUNTINGTON NATIONAL BANK	11	$1	0.00%	—
83	ROYAL BANK OF CANADA	22	$0	0.00%	TRIM -95%

Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.

Holder trends· top 15 holders · shares held over 6 quarters

green added · red trimmed

Holder

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

RENAISSANCE TECHNOLOGIES LLC

1.1M

1.2M

1.5M

1.8M

3.5M

5.0M

$6M

VANGUARD CAPITAL MANAGEMENT LLC

—

4.4M

$5M

DIMENSIONAL FUND ADVISORS LP

4.2M

4.0M

3.8M

3.6M

$4M

AMERICAN CENTURY COMPANIES INC

2.2M

2.5M

3.1M

$4M

JANE STREET GROUP, LLC

440K

231K

20K

545K

2.5M

1.9M

$2M

STATE STREET CORP

1.6M

1.3M

1.4M

1.5M

1.6M

1.7M

$2M

Banque Cantonale Vaudoise

—

800K

1.6M

$2M

UBS Group AG

529K

707K

870K

1.6M

1.3M

1.6M

$2M

GOLDMAN SACHS GROUP INC

1.3M

66K

139K

188K

1.5M

1.1M

$1M

MORGAN STANLEY

2.2M

1.1M

728K

192K

1.6M

1.0M

$1M

MARSHALL WACE, LLP

—

780K

495K

—

581K

988K

$1M

BNP PARIBAS FINANCIAL MARKETS

1.1M

612K

1.3M

730K

481K

914K

$1M

TWO SIGMA INVESTMENTS, LP

208K

53K

63K

352K

1.9M

861K

$1M

MILLENNIUM MANAGEMENT LLC

358K

2.1M

2.5M

3.8M

3.2M

836K

$1M

JPMORGAN CHASE & CO

724

780K

852K

$1M

Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.

Institutional footprint by quarter

Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding uses today's share count for every quarter (the only count stored).

Quarter	Holders	Shares held	% shares out	Value held
2026-Q1	83	36,320,886	2.7%	$45M
2025-Q4

Short interest has its own tab now — open SI →

Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.

Institutional ownership· 13F filers holding SID · 2026-Q1 methodology → sources →

83 holders

% of shares outstanding held

2.7%

Shares held (13F)

36,320,886

Reporting holders

Top holders

largest 83 of 83 · Δ vs 2025-Q4

#	Holder	Shares	Value	% of shares out	Δ QoQ
1	RENAISSANCE TECHNOLOGIES LLC	5,019,2005.0M	$6M	0.38%	ADD 42%
2	VANGUARD CAPITAL MANAGEMENT LLC	4,431,8584.4M	$5M	0.33%	NEW
3	DIMENSIONAL FUND ADVISORS LP	3,581,2643.6M	$4M	0.27%	—
4	AMERICAN CENTURY COMPANIES INC	3,112,7703.1M	$4M	0.23%	ADD 22%
5	JANE STREET GROUP, LLC	1,854,6381.9M	$2M	0.14%	TRIM -27%
6	STATE STREET CORP	1,721,9511.7M	$2M	0.13%	ADD 4%
7	Banque Cantonale Vaudoise	1,600,0001.6M	$2M	0.12%	ADD 100%
8	UBS Group AG	1,584,2411.6M	$2M	0.12%	ADD 25%
9	GOLDMAN SACHS GROUP INC	1,129,4391.1M	$1M	0.09%	TRIM -26%
10	MORGAN STANLEY	1,036,5191.0M	$1M	0.08%	TRIM -37%
11	MARSHALL WACE, LLP	988,116988,116	$1M	0.07%	ADD 70%
12	BNP PARIBAS FINANCIAL MARKETS	914,156914,156	$1M	0.07%	ADD 90%
13	TWO SIGMA INVESTMENTS, LP	861,394861,394	$1M	0.06%	TRIM -56%
14	MILLENNIUM MANAGEMENT LLC	835,553835,553	$1M	0.06%	TRIM -74%
15	JPMORGAN CHASE & CO	851,959851,959	$1M	0.06%	ADD 9%
16	CITADEL ADVISORS LLC	807,656807,656	$1M	0.06%	TRIM -60%
17	Caption Management, LLC	663,426663,426	$822,648	0.05%	NEW
18	NORTHERN TRUST CORP	558,946558,946	$693,093	0.04%	TRIM -2%
19	XTX Topco Ltd	524,057524,057	$649,831	0.04%	TRIM -30%
20	HRT FINANCIAL LP	478,898478,898	$593,000	0.04%	TRIM -15%
21	BlackRock, Inc.	418,150418,150	$518,505	0.03%	ADD 15%
22	VAN ECK ASSOCIATES CORP	388,510388,510	$482,000	0.03%	TRIM -15%
23	BAROMETER CAPITAL MANAGEMENT INC.	374,800374,800	$464,752	0.03%	ADD 2415%
24	Headlands Technologies LLC	374,740374,740	$464,678	0.03%	ADD 800%
25	VANGUARD FIDUCIARY TRUST CO	293,007293,007	$363,329	0.02%	NEW
26	STOREBRAND ASSET MANAGEMENT AS	224,830224,830	$278,789	0.02%	—
27	Stokes Family Office, LLC	160,000160,000	$198,400	0.01%	ADD 100%
28	Engineers Gate Manager LP	138,983138,983	$172,339	0.01%	NEW
29	SUSQUEHANNA INTERNATIONAL GROUP, LLP	130,906130,906	$162,324	0.01%	TRIM -11%
30	Invesco Ltd.	124,046124,046	$153,817	0.01%	TRIM -30%
31	Virtu Financial LLC	111,195111,195	$138,000	0.01%	NEW
32	Inspire Advisors, LLC	83,85383,853	$103,978	0.01%	TRIM -10%
33	TWO SIGMA SECURITIES, LLC	80,61280,612	$99,959	0.01%	NEW
34	Point72 Asset Management, L.P.	58,38958,389	$72,402	0.00%	TRIM -65%
35	LPL Financial LLC	54,26454,264	$67,287	0.00%	ADD 154%
36	Inspire Investing, LLC	52,36952,369	$64,937	0.00%	TRIM -2%
37	EntryPoint Capital, LLC	50,46750,467	$62,579	0.00%	NEW
38	SIMPLEX TRADING, LLC	44,61344,613	$55,320	0.00%	NEW
39	Scientech Research LLC	42,39342,393	$52,567	0.00%	NEW
40	D. E. Shaw & Co., Inc.	40,85540,855	$50,660	0.00%	TRIM -73%
41	Centiva Capital, LP	40,80140,801	$50,593	0.00%	NEW
42	Plan A Wealth LLC	38,27938,279	$47,466	0.00%	ADD 4%
43	First Affirmative Financial Network	36,51136,511	$45,273	0.00%	NEW
44	SmartHarvest Portfolios, LLC	33,21633,216	$41,188	0.00%	NEW
45	TUDOR INVESTMENT CORP ET AL	31,25031,250	$38,750	0.00%	NEW
46	Tower Research Capital LLC (TRC)	30,00030,000	$37,200	0.00%	NEW
47	AXQ CAPITAL, LP	27,22627,226	$33,760	0.00%	NEW
48	BANK OF AMERICA CORP /DE/	26,03326,033	$32,281	0.00%	TRIM -96%
49	R Squared Ltd	23,70523,705	$29,394	0.00%	TRIM -28%
50	LARCH CAPITAL PARTNERS LLC	23,35223,352	$28,956	0.00%	NEW
51	SG Americas Securities, LLC	19,92919,929	$25,000	0.00%	TRIM -80%
52	HSBC HOLDINGS PLC	19,77019,770	$24,148	0.00%	NEW
53	Vanguard Personalized Indexing Management, LLC	19,21819,218	$23,830	0.00%	TRIM -35%
54	MML INVESTORS SERVICES, LLC	19,14719,147	$23,743	0.00%	ADD 8%
55	Aigen Investment Management, LP	18,95918,959	$23,509	0.00%	ADD 6%
56	WELLS FARGO & COMPANY/MN	16,50016,500	$20,460	0.00%	—
57	EverSource Wealth Advisors, LLC	15,45015,450	$19,158	0.00%	ADD 1530%
58	Vident Advisory, LLC	14,08714,087	$17,468	0.00%	TRIM -21%
59	TSFG, LLC	10,66010,660	$13,000	0.00%	NEW
60	Mariner, LLC	10,11710,117	$12,545	0.00%	TRIM -30%
61	BARCLAYS PLC	9,3329,332	$11,572	0.00%	ADD 94%
62	SBI Securities Co., Ltd.	7,0817,081	$8,780	0.00%	ADD 2%
63	OSAIC HOLDINGS, INC.	4,9004,900	$6,076	0.00%	NEW
64	PNC FINANCIAL SERVICES GROUP, INC.	4,0004,000	$4,960	0.00%	—
65	GAMMA Investing LLC	2,9382,938	$3,643	0.00%	TRIM -21%
66	Lodestone Wealth Management LLC	2,0952,095	$2,598	0.00%	—
67	Triumph Capital Management	2,0002,000	$2,480	0.00%	—
68	JFS WEALTH ADVISORS, LLC	1,7161,716	$2,128	0.00%	—
69	JONES FINANCIAL COMPANIES LLLP	1,6871,687	$2,041	0.00%	—
70	FMR LLC	1,4981,498	$1,858	0.00%	TRIM -81%
71	Ancora Advisors LLC	1,0921,092	$1,354	0.00%	NEW
72	NATIONAL BANK OF CANADA /FI/	959959	$1,150	0.00%	TRIM -51%
73	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	874874	$1,084	0.00%	TRIM -55%
74	CWM, LLC	600600	$744	0.00%	—
75	Farther Finance Advisors, LLC	568568	$721	0.00%	—
76	Parallel Advisors, LLC	516516	$640	0.00%	TRIM -83%
77	Caitong International Asset Management Co., Ltd	448448	$556	0.00%	TRIM -98%
78	SIGNATUREFD, LLC	436436	$541	0.00%	TRIM -77%
79	RHUMBLINE ADVISERS	425425	$527	0.00%	TRIM -47%
80	ASSETMARK, INC	285285	$353	0.00%	TRIM -87%
81	Allworth Financial LP	200200	$248	0.00%	—
82	HUNTINGTON NATIONAL BANK	11	$1	0.00%	—
83	ROYAL BANK OF CANADA	22	$0	0.00%	TRIM -95%

Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.

Holder trends· top 15 holders · shares held over 6 quarters

green added · red trimmed

Holder

2024-Q4

2025-Q1

2025-Q2

2025-Q3

2025-Q4

2026-Q1

Latest value

RENAISSANCE TECHNOLOGIES LLC

1.1M

1.2M

1.5M

1.8M

3.5M

5.0M

$6M

VANGUARD CAPITAL MANAGEMENT LLC

—

4.4M

$5M

DIMENSIONAL FUND ADVISORS LP

4.2M

4.0M

3.8M

3.6M

$4M

AMERICAN CENTURY COMPANIES INC

2.2M

2.5M

3.1M

$4M

JANE STREET GROUP, LLC

440K

231K

20K

545K

2.5M

1.9M

$2M

STATE STREET CORP

1.6M

1.3M

1.4M

1.5M

1.6M

1.7M

$2M

Banque Cantonale Vaudoise

—

800K

1.6M

$2M

UBS Group AG

529K

707K

870K

1.6M

1.3M

1.6M

$2M

GOLDMAN SACHS GROUP INC

1.3M

66K

139K

188K

1.5M

1.1M

$1M

MORGAN STANLEY

2.2M

1.1M

728K

192K

1.6M

1.0M

$1M

MARSHALL WACE, LLP

—

780K

495K

—

581K

988K

$1M

BNP PARIBAS FINANCIAL MARKETS

1.1M

612K

1.3M

730K

481K

914K

$1M

TWO SIGMA INVESTMENTS, LP

208K

53K

63K

352K

1.9M

861K

$1M

MILLENNIUM MANAGEMENT LLC

358K

2.1M

2.5M

3.8M

3.2M

836K

$1M

JPMORGAN CHASE & CO

724

780K

852K

$1M

Institutional footprint by quarter

Line breaks are honest gaps — quarters with no 13F record, or a suppressed % — never interpolated. % of shares outstanding uses today's share count for every quarter (the only count stored).

Quarter	Holders	Shares held	% shares out	Value held
2026-Q1	83	36,320,886	2.7%	$45M
2025-Q4

Short interest has its own tab now — open SI →

SID US Equity☆

Institutional ownership· 13F filers holding SID · 2026-Q1 methodology → sources →

Top holders

Holder trends· top 15 holders · shares held over 6 quarters

Institutional footprint by quarter

Institutional ownership· 13F filers holding SID · 2026-Q1 methodology → sources →

Top holders

Holder trends· top 15 holders · shares held over 6 quarters

Institutional footprint by quarter

SID US Equity