FSTR · Foster L B Co · Holdings

$37.43 -0.44 (-1.16%)

Russell 2000 member Rebalance outlook locked

Market Cap

$399.86M

10.52M

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.

Use institutional holdings through the 13F API or MCP →

Quarter:

Holders: 133

Total Value: $373,489,505

Total Shares: 8,268,532

Showing 1–100 of 133 holdings by value · page 1 of 2

Institutional Ownership Trend

26 quarters

Superinvestors Holding FSTR

All superinvestors →

Mario Gabelli $39,995,279

Holder Concentration

Across 133 13F filers · Δ vs Mar 31, 2026

Top Holder

17.3%

−1.2 pts

Top 5

50.3%

−10.3 pts

Top 10

65.8%

−9.9 pts

HHI

667

Broadly held−206

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +24

Institutional value: +67.3%

Shares held: +3.3%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mid Hillsdale Investment Management Inc.	+205,450	218,150
Large ACADIAN ASSET MANAGEMENT LLC	+137,692	267,997
Mega AMERICAN CENTURY COMPANIES INC	+112,550	196,121
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	+49,622	58,824
Mega BlackRock, Inc.	+40,370	743,232

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Large BRANDES INVESTMENT PARTNERS, LP	−50,483	1,430,840
Large HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC	−44,940	91,157
Mega DIMENSIONAL FUND ADVISORS LP	−16,394	677,098
Small Minerva Advisors LLC	−16,043	67,922
Large GAMCO INVESTORS, INC. ET AL	−16,000	885,439

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mega TWO SIGMA INVESTMENTS, LP	144,194	$6,513,242
Mid ALGERT GLOBAL LLC	44,189	$1,996,017
Large PANAGORA ASSET MANAGEMENT INC	41,295	$1,865,295
Large LAZARD ASSET MANAGEMENT LLC	40,298	$1,820,260
Small GLOBEFLEX CAPITAL L P	35,448	$1,601,186

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Small 22NW, LP	1,067,186	$29,774,489
Small Ascentis Wealth Management, LLC	24,613	$686,702
Mega JANE STREET GROUP, LLC	12,571	$350,730
Small R Squared Ltd	8,649	$241,307
Micro Roble, Belko & Company, Inc	5,000	$139,500

Filter: New 36 Increased 46 Reduced 31 Sold out 12 Unchanged 20

Showing 100 of 133

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

BRANDES INVESTMENT PARTNERS, LP

$64,631,042

17.30%

1,430,840

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.	98,754	$4,460,718	6.9%	Defined
Held directly	1,332,086	$60,170,324	93.1%	Sole

GAMCO INVESTORS, INC. ET AL

$39,995,279

10.71%

885,439

BlackRock, Inc.

$33,571,784

8.99%

743,232

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	25,847	$1,167,508	3.5%	Sole
BlackRock Asset Management Canada Ltd	5,679	$256,520	0.8%	Sole
BlackRock Investment Management, LLC	55,516	$2,507,657	7.5%	Sole
BLACKROCK ADVISORS LLC	21,693	$979,872	2.9%	Sole
BlackRock Fund Advisors	382,235	$17,265,554	51.4%	Sole
BlackRock Institutional Trust Company, N.A.	243,982	$11,020,666	32.8%	Sole
BlackRock Investment Management (UK) Ltd.	5,238	$236,600	0.7%	Sole
Aperio Group, LLC	3,042	$137,407	0.4%	Sole

DIMENSIONAL FUND ADVISORS LP

$30,584,515

8.19%

677,098

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.	1,132	$51,132	0.2%	Defined
DFA Australia Ltd.	6,827	$308,375	1.0%	Defined
Dimensional Ireland Ltd	22,639	$1,022,603	3.3%	Defined
Held directly	646,500	$29,202,405	95.5%	Sole

VANGUARD CAPITAL MANAGEMENT LLC

$19,106,006

5.12%

422,980

RENAISSANCE TECHNOLOGIES LLC

$16,096,329

4.31%

356,350

ACADIAN ASSET MANAGEMENT LLC

$12,105,424

3.24%

267,997

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

Manager	Shares	Value (USD)	% of position	Discretion
Acadian Inc	267,997	$12,105,424	100.0%	Defined

GEODE CAPITAL MANAGEMENT, LLC

$11,132,778

2.98%

246,464

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	36,728	$1,659,003	14.9%	Defined
Held directly	209,736	$9,473,775	85.1%	Defined

Hillsdale Investment Management Inc.

$9,853,835

2.64%

218,150

AMERICAN CENTURY COMPANIES INC

$8,858,785

2.37%

196,121

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	196,121	$8,858,785	100.0%	Defined

STATE STREET CORP

$8,662,160

2.32%

191,768

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	191,768	$8,662,160	100.0%	Defined

TWO SIGMA INVESTMENTS, LP

$6,513,242

1.74%

144,194

GABELLI FUNDS LLC

$5,628,182

1.51%

124,600

Bragg Financial Advisors, Inc

$5,144,049

1.38%

113,882

UBS Group AG

$4,887,529

1.31%

108,203

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	71,891	$3,247,316	66.4%	Defined
UBS AG	36,312	$1,640,213	33.6%	Defined

HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC

$4,117,561

1.10%

91,157

Teton Advisors, LLC

$3,796,086

1.02%

84,040

NORTHERN TRUST CORP

$3,709,359

0.99%

82,120

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	80,565	$3,639,120	98.1%	Defined
DWS INVESTMENT MANAGEMENT AMERICAS, INC joint	1,555	$70,239	1.9%	Other

Wealthspire Advisors, LLC

$3,654,569

0.98%

80,907

Qube Research & Technologies Ltd

$3,307,844

0.89%

73,231

Minerva Advisors LLC

$3,068,036

0.82%

67,922

VANGUARD PORTFOLIO MANAGEMENT LLC

$2,999,649

0.80%

66,408

BRIDGEWAY CAPITAL MANAGEMENT, LLC

$2,953,982

0.79%

65,397

VANGUARD FIDUCIARY TRUST CO

$2,886,995

0.77%

63,914

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

$2,657,080

0.71%

58,824

MORGAN STANLEY

$2,476,486

0.66%

54,826

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	8	$361	0.0%	Defined
MORGAN STANLEY & CO. LLC	2,723	$122,997	5.0%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	23,409	$1,057,384	42.7%	Defined
MORGAN STANLEY SMITH BARNEY LLC	24,569	$1,109,781	44.8%	Defined
Morgan Stanley Bank, N.A.	568	$25,656	1.0%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	3,549	$160,307	6.5%	Defined

MARSHALL WACE, LLP

$2,304,483

0.62%

51,018

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

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	51,018	$2,304,483	100.0%	Other

Russell Investments Group, Ltd.

$2,160,523

0.58%

47,831

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	6,542	$295,501	13.7%	Defined
Russell Investments Capital, LLC	31,068	$1,403,341	65.0%	Defined
Russell Investments France SAS	4,204	$189,894	8.8%	Defined
Russell Investments Trust Company	6,017	$271,787	12.6%	Defined

LPL Financial LLC

$2,019,189

0.54%

44,702

ALGERT GLOBAL LLC

$1,996,017

0.53%

44,189

PANAGORA ASSET MANAGEMENT INC

$1,865,295

0.50%

41,295

LAZARD ASSET MANAGEMENT LLC

$1,820,260

0.49%

40,298

Assenagon Asset Management S.A.

$1,814,749

0.49%

40,176

MARTINGALE ASSET MANAGEMENT L P

$1,740,716

0.47%

38,537

GOLDMAN SACHS GROUP INC

$1,737,283

0.47%

38,461

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	18,819	$850,054	48.9%	Defined
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	19,642	$887,229	51.1%	Defined

Bank of New York Mellon Corp

$1,729,060

0.46%

38,279

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

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Investments Corporation	14,068	$635,451	36.8%	Defined
The Bank of New York Mellon	18,868	$852,267	49.3%	Defined
BNY Mellon, NA	147	$6,639	0.4%	Defined
BNY Mellon Advisors, Inc.	5,195	$234,658	13.6%	Defined
Held directly	1	$45	0.0%	Defined

GLOBEFLEX CAPITAL L P

$1,601,186

0.43%

35,448

LOS ANGELES CAPITAL MANAGEMENT LLC

$1,471,728

0.39%

32,582

CITADEL ADVISORS LLC

$1,442,368

0.39%

31,932

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	6,802	$307,246	21.3%	Defined
Held directly	25,130	$1,135,122	78.7%	Defined

De Lisle Partners LLP

$1,377,459

0.37%

30,495

FMR LLC

$1,362,101

0.36%

30,155

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

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Management & Research Co LLC	28,553	$1,289,739	94.7%	Defined
STRATEGIC ADVISERS LLC	1,602	$72,362	5.3%	Defined

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$1,286,893

0.34%

28,490

JACOBS LEVY EQUITY MANAGEMENT, INC

$1,256,764

0.34%

27,823

Informed Momentum Co LLC

$1,199,218

0.32%

26,549

ENVESTNET ASSET MANAGEMENT INC

$1,074,278

0.29%

23,783

JPMORGAN CHASE & CO

$1,040,625

0.28%

23,038

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.	4,099	$185,151	17.8%	Defined
J.P. Morgan Investment Management Inc.	107	$4,833	0.5%	Defined
J.P. Morgan Securities LLC	18,830	$850,551	81.7%	Defined
J.P. Morgan Securities plc	2	$90	0.0%	Defined

Janney Montgomery Scott LLC

$1,037,961

0.28%

22,979

Pitcairn Wealth Advisors LLC

$1,030,192

0.28%

22,807

ROYAL BANK OF CANADA

$986,151

0.26%

21,832

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

Manager	Shares	Value (USD)	% of position	Discretion
RBC CMA LTD.	300	$13,551	1.4%	Defined
RBC Capital Markets, LLC	20,430	$922,823	93.6%	Defined
RBC Dominion Securities Inc.	1,102	$49,777	5.0%	Defined

SEI INVESTMENTS CO

$922,190

0.25%

20,416

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

Manager	Shares	Value (USD)	% of position	Discretion
SEI TRUST CO	20,416	$922,190	100.0%	Sole

Squarepoint Ops LLC

$861,979

0.23%

19,083

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

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	19,083	$861,979	100.0%	Defined

BNP PARIBAS ARBITRAGE, SA

$830,540

0.22%

18,387

AMERIPRISE FINANCIAL INC

$827,378

0.22%

18,317

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	17,917	$809,310	97.8%	Defined
Ameriprise Financial Services, LLC	400	$18,068	2.2%	Defined

S SQUARED TECHNOLOGY, LLC

$817,622

0.22%

18,101

Empowered Funds, LLC

$803,890

0.22%

17,797

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

Manager	Shares	Value (USD)	% of position	Discretion
Bridgeway Capital Management, LLC	17,797	$803,890	100.0%	Other

STATE OF WISCONSIN INVESTMENT BOARD

$720,145

0.19%

15,943

STRS OHIO

$718,203

0.19%

15,900

State of Wyoming

$707,000

0.19%

15,652

Sanctuary Advisors, LLC

$705,736

0.19%

15,624

Spire Wealth Management

$688,029

0.18%

15,232

PRUDENTIAL FINANCIAL INC

$661,740

0.18%

14,650

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

Manager	Shares	Value (USD)	% of position	Discretion
PGIM Quantitative Solutions LLC	14,650	$661,740	100.0%	Defined

Atria Investments, Inc

$650,854

0.17%

14,409

AQR CAPITAL MANAGEMENT LLC

$632,287

0.17%

13,998

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

Manager	Shares	Value (USD)	% of position	Discretion
RF&L WEALTH MANAGEMENT, LLC	7	$316	0.0%	Other
Prism Planning Partners LLC	8	$361	0.1%	Other
Compound Planning, Inc.	2	$90	0.0%	Other
Arax Advisory Partners	72	$3,252	0.5%	Other
HALBERT HARGROVE GLOBAL ADVISORS, LLC	72	$3,252	0.5%	Other
Stokes Family Office, LLC	321	$14,499	2.3%	Other
Held directly	13,516	$610,517	96.6%	Defined

Quadrature Capital Ltd

$620,680

0.17%

13,741

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

Manager	Shares	Value (USD)	% of position	Discretion
Quadrature US Inc.	13,741	$620,680	100.0%	Other

Point72 Asset Management, L.P.

$610,879

0.16%

13,524

BANK OF AMERICA CORP /DE/

$597,011

0.16%

13,217

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	13,217	$597,011	100.0%	Defined

Invesco Ltd.

$592,675

0.16%

13,121

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	1,202	$54,294	9.2%	Defined
Invesco Trust Co joint	3,924	$177,247	29.9%	Defined
Invesco Capital Management LLC	7,995	$361,134	60.9%	Defined

ZACKS INVESTMENT MANAGEMENT

$591,004

0.16%

13,084

Nuveen, LLC

$556,674

0.15%

12,324

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	28	$1,264	0.2%	Defined
TEACHERS ADVISORS, LLC joint	12,296	$555,410	99.8%	Defined

XTX Topco Ltd

$534,812

0.14%

11,840

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

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	11,840	$534,812	100.0%	Defined

Ancora Advisors LLC

$516,293

0.14%

11,430

RHUMBLINE ADVISERS

$508,026

0.14%

11,247

O'SHAUGHNESSY ASSET MANAGEMENT, LLC

$498,044

0.13%

11,026

STIFEL FINANCIAL CORP

$468,321

0.13%

10,368

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

Manager	Shares	Value (USD)	% of position	Discretion
STIFEL NICOLAUS & CO INC \MO\	10,357	$467,825	99.9%	Defined
Held directly	11	$496	0.1%	Defined

&PARTNERS

$467,825

0.13%

10,357

DEUTSCHE BANK AG\

$435,664

0.12%

9,645

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

Manager	Shares	Value (USD)	% of position	Discretion
DWS Investments UK Ltd	9,645	$435,664	100.0%	Defined

Marion Wealth Management

$433,315

0.12%

9,593

GWN SECURITIES INC.

$432,051

0.12%

9,565

RITHOLTZ WEALTH MANAGEMENT

$378,208

0.10%

8,373

BARCLAYS PLC

$375,407

0.10%

8,311

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

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS BANK PLC	8,069	$364,476	97.1%	Defined
BARCLAYS CAPITAL INC.	242	$10,931	2.9%	Defined

WELLS FARGO & COMPANY/MN

$374,052

0.10%

8,281

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	8,280	$374,007	100.0%	Defined
WELLS FARGO CLEARING SERVICES, LLC	1	$45	0.0%	Defined

OSAIC HOLDINGS, INC.

$373,194

0.10%

8,262

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

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	8,262	$373,194	100.0%	Defined

Farther Finance Advisors, LLC

$372,291

0.10%

8,242

WealthTrust Axiom LLC

$365,877

0.10%

8,100

PRICE T ROWE ASSOCIATES INC /MD/

$358,694

0.10%

7,941

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

Manager	Shares	Value (USD)	% of position	Discretion
T. Rowe Price International Ltd	7,941	$358,694	100.0%	Defined

MILLENNIUM MANAGEMENT LLC

$348,757

0.09%

7,721

Orchard Capital Management, LLC

$333,309

0.09%

7,379

MetLife Investment Management, LLC

$291,617

0.08%

6,456

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

Manager	Shares	Value (USD)	% of position	Discretion
METLIFE INC	6,456	$291,617	100.0%	Defined

BAILARD, INC.

$279,286

0.07%

6,183

Veradace Capital Management LLC

$271,020

0.07%

6,000

TWO SIGMA SECURITIES, LLC

$261,760

0.07%

5,795

Jump Financial, LLC

$247,350

0.07%

5,476

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

Manager	Shares	Value (USD)	% of position	Discretion
Leap GP LLC joint	5,476	$247,350	100.0%	Defined

Bristlecone Value Partners, LLC

$234,612

0.06%

5,194

PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO

$234,025

0.06%

5,181

J.W. COLE ADVISORS, INC.

$231,496

0.06%

5,125

CANADA PENSION PLAN INVESTMENT BOARD

$230,367

0.06%

5,100

UNITED CAPITAL FINANCIAL ADVISORS, LLC

$225,850

0.06%

5,000

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

Manager	Shares	Value (USD)	% of position	Discretion
United Capital Financial Partners, LLC	5,000	$225,850	100.0%	Defined

Moors & Cabot, Inc.

$224,540

0.06%

4,971

CITIGROUP INC

$217,267

0.06%

4,810

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	4,810	$217,267	100.0%	Defined

NEW YORK STATE COMMON RETIREMENT FUND

$212,299

0.06%

4,700

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