GHM · Graham Corp

$83.49 +0.00 (+0.00%)

Russell 2000 member Rebalance outlook locked

Market Cap

$978.40M

11.74M

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.

Quarter:

Holders: 222

Total Value: $1,305,203,488

Total Shares: 10,543,702

Showing 1–100 of 227 holdings by value · page 1 of 3

Institutional Ownership Trend

26 quarters

Superinvestors Holding GHM

All superinvestors →

Mario Gabelli $27,469,867

Holder Concentration

Across 222 13F filers · Δ vs Mar 31, 2026

Top Holder

10.2%

−2.8 pts

Top 5

33.3%

−2.1 pts

Top 10

46.8%

−3.0 pts

HHI

338

Broadly held−69

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +41

Institutional value: +83.9%

Shares held: +17.2%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mega BlackRock, Inc.	+123,823	890,500
Small INTRINSIC EDGE CAPITAL MANAGEMENT LLC	+84,870	103,998
Mega Invesco Ltd.	+73,565	124,947
Mega TWO SIGMA INVESTMENTS, LP	+69,534	77,263
Mega GEODE CAPITAL MANAGEMENT, LLC	+55,752	303,928

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Mega AMERICAN CENTURY COMPANIES INC	−102,493	28,861
Large BRANDES INVESTMENT PARTNERS, LP	−91,282	1,079,699
Large Driehaus Capital Management LLC	−49,676	293,232
Large RENAISSANCE TECHNOLOGIES LLC	−39,600	207,768
Small MIRABELLA FINANCIAL SERVICES LLP	−36,553	2,606

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mega T. Rowe Price Investment Management, Inc.	607,281	$75,175,314
Mid SEGALL BRYANT & HAMILL, LLC	180,294	$22,318,594
Large SILVERCREST ASSET MANAGEMENT GROUP LLC	142,692	$17,663,842
Mid NEXT CENTURY GROWTH INVESTORS LLC	60,499	$7,489,171
Large Allspring Global Investments Holdings, LLC	60,401	$7,477,039

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Mid CenterBook Partners LP	44,876	$3,541,613
Mega MILLENNIUM MANAGEMENT LLC	27,732	$2,188,609
Large PANAGORA ASSET MANAGEMENT INC	25,265	$1,993,913
Large ACADIAN ASSET MANAGEMENT LLC	14,362	$1,133,449
Small VARCOV Co.	13,916	$1,098,250

Filter: New 61 Increased 86 Reduced 55 Sold out 20 Unchanged 20

Showing 100 of 227

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

BRANDES INVESTMENT PARTNERS, LP

$133,655,938

10.24%

1,079,699

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Brandes Investment Partners & Co.	210,378	$26,042,692	19.5%	Defined
Held directly	869,321	$107,613,246	80.5%	Sole

BlackRock, Inc.

$110,234,990

8.45%

890,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	8,792	$1,088,361	1.0%	Sole
BlackRock Asset Management Canada Ltd	39	$4,827	0.0%	Sole
BlackRock Investment Management, LLC	31,333	$3,878,712	3.5%	Sole
BLACKROCK ADVISORS LLC	24,207	$2,996,584	2.7%	Sole
BlackRock Fund Advisors	439,545	$54,411,275	49.4%	Sole
BlackRock Institutional Trust Company, N.A.	349,904	$43,314,616	39.3%	Sole
BlackRock Fund Managers Ltd.	1,984	$245,599	0.2%	Sole
BlackRock Asset Management Ireland Ltd	5,672	$702,136	0.6%	Sole
Aperio Group, LLC	29,024	$3,592,880	3.3%	Sole

T. Rowe Price Investment Management, Inc.

$75,175,314

5.76%

607,281

VANGUARD CAPITAL MANAGEMENT LLC

$60,110,071

4.61%

485,581

ROYCE & ASSOCIATES LP

$55,258,865

4.23%

446,392

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC

$45,158,592

3.46%

364,800

GEODE CAPITAL MANAGEMENT, LLC

$37,623,246

2.88%

303,928

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	40,420	$5,003,591	13.3%	Defined
Held directly	263,508	$32,619,655	86.7%	Defined

Driehaus Capital Management LLC

$36,299,189

2.78%

293,232

STATE STREET CORP

$29,967,206

2.30%

242,081

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS EUROPE LIMITED joint	242,081	$29,967,206	100.0%	Defined

GAMCO INVESTORS, INC. ET AL

$27,469,867

2.10%

221,907

DIMENSIONAL FUND ADVISORS LP

$27,419,856

2.10%

221,503

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Dimensional Fund Advisors Ltd.	585	$72,417	0.3%	Defined
DFA Australia Ltd.	3,828	$473,868	1.7%	Defined
Dimensional Ireland Ltd	8,976	$1,111,139	4.1%	Defined
Held directly	208,114	$25,762,432	94.0%	Sole

MORGAN STANLEY

$26,427,428

2.02%

213,486

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	75	$9,284	0.0%	Defined
MORGAN STANLEY & CO. LLC	3,041	$376,445	1.4%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	104,230	$12,902,631	48.8%	Defined
MORGAN STANLEY SMITH BARNEY LLC	97,060	$12,015,056	45.5%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	9,080	$1,124,012	4.3%	Defined

RENAISSANCE TECHNOLOGIES LLC

$25,719,600

1.97%

207,768

First Eagle Investment Management, LLC

$24,029,248

1.84%

194,113

AGMAN CAPITAL LLC

$22,410,322

1.72%

181,035

SEGALL BRYANT & HAMILL, LLC

$22,318,594

1.71%

180,294

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NEW YORK LIFE INVESTMENT MANAGEMENT LLC	180,294	$22,318,594	100.0%	Sole

ROYAL BANK OF CANADA

$22,041,425

1.69%

178,055

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC CMA LTD.	326	$40,355	0.2%	Defined
RBC Capital Markets, LLC	8,948	$1,107,672	5.0%	Defined
RBC Global Asset Management (U.S.) Inc.	138,744	$17,175,119	77.9%	Defined
RBC Dominion Securities Inc.	442	$54,715	0.2%	Defined
RBC Trust Co (Delaware) Ltd	5	$618	0.0%	Defined
Alaska Permanent Fund Corp joint	29,590	$3,662,946	16.6%	Defined

VANGUARD PORTFOLIO MANAGEMENT LLC

$17,837,643

1.37%

144,096

CAPTRUST FINANCIAL ADVISORS

$17,763,122

1.36%

143,494

SILVERCREST ASSET MANAGEMENT GROUP LLC

$17,663,842

1.35%

142,692

Portolan Capital Management, LLC

$16,949,945

1.30%

136,925

KENNEDY CAPITAL MANAGEMENT LLC

$15,727,643

1.20%

127,051

Invesco Ltd.

$15,467,187

1.19%

124,947

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Invesco Advisers, Inc. joint	1,659	$205,367	1.3%	Defined
Invesco Trust Co joint	4,267	$528,211	3.4%	Defined
Invesco Capital Management LLC	119,021	$14,733,609	95.3%	Defined

Catawba River Capital

$14,552,257

1.11%

117,556

EXCHANGE TRADED CONCEPTS, LLC

$12,882,701

0.99%

104,069

INTRINSIC EDGE CAPITAL MANAGEMENT LLC

$12,873,912

0.99%

103,998

NORTHERN TRUST CORP

$12,702,212

0.97%

102,611

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	95,846	$11,864,775	93.4%	Defined
NORTHERN TRUST GLOBAL INVESTMENTS LTD	5,121	$633,927	5.0%	Defined
DWS INVESTMENT MANAGEMENT AMERICAS, INC joint	1,644	$203,510	1.6%	Other

UBS Group AG

$12,627,569

0.97%

102,008

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	42,497	$5,260,703	41.7%	Defined
UBS AG	58,941	$7,296,306	57.8%	Defined
UBS Switzerland AG	570	$70,560	0.6%	Defined

ESSEX INVESTMENT MANAGEMENT CO LLC

$11,562,604

0.89%

93,405

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$11,249,663

0.86%

90,877

De Lisle Partners LLP

$11,130,701

0.85%

89,916

WASATCH ADVISORS LP

$10,534,900

0.81%

85,103

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	85,103	$10,534,900	100.0%	Sole

Prescott Group Capital Management, L.L.C.

$9,969,551

0.76%

80,536

VANGUARD FIDUCIARY TRUST CO

$9,630,738

0.74%

77,799

TWO SIGMA INVESTMENTS, LP

$9,564,386

0.73%

77,263

DIAMOND HILL CAPITAL MANAGEMENT INC

$9,078,758

0.70%

73,340

GOLDMAN SACHS GROUP INC

$8,536,062

0.65%

68,956

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	51,773	$6,408,979	75.1%	Defined
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	17,183	$2,127,083	24.9%	Defined

Advisors Asset Management, Inc.

$8,398,656

0.64%

67,846

PHILADELPHIA TRUST CO

$7,968,857

0.61%

64,374

JANE STREET GROUP, LLC

$7,678,940

0.59%

62,032

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	17,254	$2,135,872	27.8%	Defined
Jane Street Global Trading, LLC	44,778	$5,543,068	72.2%	Defined

NEXT CENTURY GROWTH INVESTORS LLC

$7,489,171

0.57%

60,499

Allspring Global Investments Holdings, LLC

$7,477,039

0.57%

60,401

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Allspring Funds Management, LLC reporting on behalf of Morgan Stanley Smith Barney, LLC	3	$371	0.0%	Defined
Allspring Global Investments, LLC reporting on behalf of UBS ASSET MANAGEMENT AMERICAS INC	60,398	$7,476,668	100.0%	Defined

Uniplan Investment Counsel, Inc.

$7,227,974

0.55%

58,389

Russell Investments Group, Ltd.

$7,095,763

0.54%

57,321

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Russell Investment Management, LLC	25,297	$3,131,515	44.1%	Defined
Russell Investments Canada Limited	860	$106,459	1.5%	Defined
Russell Investments Capital, LLC	13,493	$1,670,298	23.5%	Defined
Russell Investments France SAS	5,407	$669,332	9.4%	Defined
Russell Investments Limited	1,206	$149,290	2.1%	Defined
Russell Investments Trust Company	11,058	$1,368,869	19.3%	Defined

Legato Capital Management LLC

$6,969,748

0.53%

56,303

Informed Momentum Co LLC

$6,835,312

0.52%

55,217

AMERICAN CAPITAL MANAGEMENT INC

$6,443,269

0.49%

52,050

SEI INVESTMENTS CO

$5,564,112

0.43%

44,948

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SEI INVESTMENTS MANAGEMENT CORP	1,230	$152,261	2.7%	Sole
SEI TRUST CO	43,718	$5,411,851	97.3%	Sole

PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC.

$5,521,652

0.42%

44,605

PEAK6 LLC

$4,951,600

0.38%

40,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PEAK6 Investments LLC joint	40,000	$4,951,600	100.0%	Defined

Lisanti Capital Growth, LLC

$4,828,428

0.37%

39,005

TRUIST FINANCIAL CORP

$4,799,090

0.37%

38,768

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Truist Advisory Services, Inc.	38,768	$4,799,090	100.0%	Defined

Moody Aldrich Partners LLC

$4,720,360

0.36%

38,132

FFG RETIREMENT ADVISORS LLC

$4,704,020

0.36%

38,000

AMERIPRISE FINANCIAL INC

$4,679,880

0.36%

37,805

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Columbia Management Investment Advisers, LLC	37,657	$4,661,560	99.6%	Defined
Ameriprise Financial Services, LLC	148	$18,320	0.4%	Defined

Bank of New York Mellon Corp

$4,598,300

0.35%

37,146

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Investments Corporation	13,010	$1,610,507	35.0%	Defined
The Bank of New York Mellon	19,615	$2,428,140	52.8%	Defined
BNY Mellon, NA joint	451	$55,829	1.2%	Defined
BNY Mellon Advisors, Inc.	4,068	$503,577	11.0%	Defined
Held directly	2	$247	0.0%	Defined

Squarepoint Ops LLC

$4,475,379

0.34%

36,153

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	36,153	$4,475,379	100.0%	Defined

Nuveen, LLC

$4,390,954

0.34%

35,471

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Nuveen Asset Management, LLC joint	14,053	$1,739,620	39.6%	Defined
TEACHERS ADVISORS, LLC joint	21,418	$2,651,334	60.4%	Defined

JPMORGAN CHASE & CO

$4,202,544

0.32%

33,949

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	4,439	$549,503	13.1%	Defined
J.P. Morgan Investment Management Inc.	247	$30,576	0.7%	Defined
J.P. Morgan Securities LLC	29,263	$3,622,465	86.2%	Defined

HERITAGE INVESTORS MANAGEMENT CORP

$4,171,846

0.32%

33,701

Annex Advisory Services, LLC

$3,857,296

0.30%

31,160

Nicholas Investment Partners, LP

$3,804,438

0.29%

30,733

AMERICAN CENTURY COMPANIES INC

$3,572,703

0.27%

28,861

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
AMERICAN CENTURY INVESTMENT MANAGEMENT INC	28,861	$3,572,703	100.0%	Defined

CREDIT AGRICOLE S A

$3,515,636

0.27%

28,400

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Credit Agricole Corporate & Investment Bank joint	28,400	$3,515,636	100.0%	Defined

LPL Financial LLC

$3,291,823

0.25%

26,592

BANK OF AMERICA CORP /DE/

$3,253,077

0.25%

26,279

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BANK OF AMERICA NA	23,204	$2,872,423	88.3%	Defined
MANAGED ACCOUNT ADVISORS LLC	3,075	$380,654	11.7%	Defined

CITADEL ADVISORS LLC

$3,155,530

0.24%

25,491

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	20,932	$2,591,172	82.1%	Defined
Held directly	4,559	$564,358	17.9%	Defined

Calamos Advisors LLC

$3,083,608

0.24%

24,910

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	16,280	$2,015,301	65.4%	Other
Held directly	8,630	$1,068,307	34.6%	Sole

CITIGROUP INC

$2,926,766

0.22%

23,643

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	23,643	$2,926,766	100.0%	Defined

Conestoga Capital Advisors, LLC

$2,629,299

0.20%

21,240

ENVESTNET ASSET MANAGEMENT INC

$2,621,995

0.20%

21,181

Creative Planning

$2,577,679

0.20%

20,823

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
CREATIVE PLANNING TRUST Co LLC	785	$97,175	3.8%	Defined
Held directly	20,038	$2,480,504	96.2%	Sole

Swiss National Bank

$2,550,074

0.20%

20,600

Connor, Clark & Lunn Investment Management Ltd.

$2,405,734

0.18%

19,434

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	19,434	$2,405,734	100.0%	Sole

Teton Advisors, LLC

$2,352,010

0.18%

19,000

PRINCIPAL FINANCIAL GROUP INC

$2,221,411

0.17%

17,945

LORD, ABBETT & CO. LLC

$2,166,325

0.17%

17,500

Mitsubishi UFJ Asset Management Co., Ltd.

$2,162,611

0.17%

17,470

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MITSUBISHI UFJ FINANCIAL GROUP INC	17,470	$2,162,611	100.0%	Defined

POLEN CAPITAL MANAGEMENT LLC

$1,962,319

0.15%

15,852

WealthTrust Axiom LLC

$1,953,406

0.15%

15,780

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$1,879,503

0.14%

15,183

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	15,183	$1,879,503	100.0%	Other

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$1,844,471

0.14%

14,900

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	14,900	$1,844,471	100.0%	Other

WELLS FARGO & COMPANY/MN

$1,696,788

0.13%

13,707

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO BANK N A	9,767	$1,209,056	71.3%	Defined
WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC	870	$107,697	6.3%	Defined
WELLS FARGO CLEARING SERVICES, LLC	3,070	$380,035	22.4%	Defined

GABELLI FUNDS LLC

$1,682,058

0.13%

13,588

TD Asset Management Inc

$1,674,878

0.13%

13,530

RHUMBLINE ADVISERS

$1,667,079

0.13%

13,467

BNP PARIBAS ARBITRAGE, SA

$1,655,319

0.13%

13,372

MML INVESTORS SERVICES, LLC

$1,573,247

0.12%

12,709

Quadrature Capital Ltd

$1,564,829

0.12%

12,641

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Quadrature US Inc.	12,641	$1,564,829	100.0%	Other

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

$1,407,616

0.11%

11,371

Pathstone Holdings, LLC

$1,403,778

0.11%

11,340

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
ADVISOR PARTNERS II, LLC	11,333	$1,402,912	99.9%	Defined
Held directly	7	$866	0.1%	Sole

ALLIANCEBERNSTEIN L.P.

$1,362,308

0.10%

11,005

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Equitable Holdings, Inc.	11,005	$1,362,308	100.0%	Defined

Auto-Owners Insurance Co

$1,361,690

0.10%

11,000

Quantbot Technologies LP

$1,341,759

0.10%

10,839

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	10,839	$1,341,759	100.0%	Sole

DEUTSCHE BANK AG\

$1,338,293

0.10%

10,811

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
DWS INVESTMENT MANAGEMENT AMERICAS, INC	202	$25,005	1.9%	Defined
DWS Investments UK Ltd	10,609	$1,313,288	98.1%	Defined

SHAKER INVESTMENTS LLC/OH

$1,324,305

0.10%

10,698

SIMPLEX TRADING, LLC

$1,302,765

0.10%

10,524

Aquatic Capital Management LLC

$1,292,367

0.10%

10,440

O'SHAUGHNESSY ASSET MANAGEMENT, LLC

$1,201,258

0.09%

9,704

AQR CAPITAL MANAGEMENT LLC

$1,176,622

0.09%

9,505

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Arax Advisory Partners	6	$742	0.1%	Other
HALBERT HARGROVE GLOBAL ADVISORS, LLC	49	$6,065	0.5%	Other
Stokes Family Office, LLC	493	$61,028	5.2%	Other
Held directly	8,957	$1,108,787	94.2%	Defined

Key facts CIK 716314 CUSIP 384556106 13F (30d) 177 filings 175 filers Visit website Investor relations