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Equibles

FSTR

Foster L B Co

Company with tickers: FSTR

CIK
352825
CUSIP
350060109
Shares Outstanding
10,458,680
13F Activity (30d)
75 filings 70 filers

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.

Holders: 109
Total Value: $223,243,615
Total Shares: 8,001,566
Showing 1–100 of 109 holdings by value · page 1 of 2

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 109 13F filers · Δ vs Dec 31, 2025
Top Holder
18.5%
Jun 2023 → Mar 2026 · range 15.9% – 29.6%
+1.3 pts
Top 5
60.6%
Jun 2023 → Mar 2026 · range 51.9% – 64.8%
−1.0 pts
Top 10
75.8%
Jun 2023 → Mar 2026 · range 66.9% – 80.0%
−2.9 pts
HHI
873
Jun 2023 → Mar 2026 · range 677 – 1,456
Broadly held−32

Quarterly Activity

vs Dec 31, 2025
New
20
Increased
27
Decreased
37
Sold Out
6
Unchanged
25
Holder count: +14
Institutional value: +4.6%
Shares held: +1.0%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Large BRANDES INVESTMENT PARTNERS, LP +120,908 1,481,323
Mega UBS Group AG +79,411 98,166
Large Qube Research & Technologies Ltd +15,567 50,494
Large Assenagon Asset Management S.A. +13,724 28,035
Mid Wealthspire Advisors, LLC +11,984 80,907

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Small 22NW, LP −123,860 1,067,186
Small Teton Advisors, LLC −29,537 98,641
Mid GAMCO INVESTORS, INC. ET AL −16,661 901,439
Large RENAISSANCE TECHNOLOGIES LLC −14,200 316,382
Mega BARCLAYS PLC −13,595 8,922

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 384,784 $10,735,473
Mega VANGUARD FIDUCIARY TRUST CO 60,513 $1,688,312
Mega VANGUARD PORTFOLIO MANAGEMENT LLC 57,299 $1,598,642
Large MARSHALL WACE, LLP 19,716 $550,076
Large Empowered Funds, LLC 16,665 $464,953

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 501,587 $13,517,768
Micro REDMONT WEALTH ADVISORS LLC 27,420 $738,969
Mid J.W. COLE ADVISORS, INC. 12,530 $337,683
Large COMERICA BANK 1,707 $46,003
Large AMALGAMATED BANK 317 $8,543
Filter: New 20 Increased 27 Reduced 37 Sold out 6 Unchanged 25
Showing 100 of 109
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Large BRANDES INVESTMENT PARTNERS, LP $41,328,911 18.51% 1,481,323
Small 22NW, LP $29,774,489 13.34% 1,067,186
Mid GAMCO INVESTORS, INC. ET AL $25,150,148 11.27% 901,439
Mega BlackRock, Inc. $19,609,845 8.78% 702,862
Mega DIMENSIONAL FUND ADVISORS LP $19,348,424 8.67% 693,492
Mega VANGUARD CAPITAL MANAGEMENT LLC $10,735,473 4.81% 384,784
Large RENAISSANCE TECHNOLOGIES LLC $8,827,057 3.95% 316,382
Mega GEODE CAPITAL MANAGEMENT, LLC $6,381,036 2.86% 228,711
Mega STATE STREET CORP $4,256,172 1.91% 152,551
Large HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC $3,797,106 1.70% 136,097
Large GABELLI FUNDS LLC $3,711,704 1.66% 133,036
Large ACADIAN ASSET MANAGEMENT LLC $3,635,509 1.63% 130,305
Mid Bragg Financial Advisors, Inc $3,177,335 1.42% 113,883
Small Teton Advisors, LLC $2,752,083 1.23% 98,641
Mega UBS Group AG $2,738,831 1.23% 98,166
Small Minerva Advisors LLC $2,342,623 1.05% 83,965
Mega AMERICAN CENTURY COMPANIES INC $2,331,630 1.04% 83,571
Mid Wealthspire Advisors, LLC $2,257,305 1.01% 80,907
Mega NORTHERN TRUST CORP Bank $2,181,779 0.98% 78,200
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC $1,792,993 0.80% 64,265
Mega VANGUARD FIDUCIARY TRUST CO Bank $1,688,312 0.76% 60,513
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $1,598,642 0.72% 57,299
Large Qube Research & Technologies Ltd $1,408,782 0.63% 50,494
Mega MORGAN STANLEY $1,369,467 0.61% 49,085
Mega GOLDMAN SACHS GROUP INC $1,104,784 0.49% 39,598
Mega Bank of New York Mellon Corp Bank $972,341 0.44% 34,851
Small Pitcairn Wealth Advisors LLC $886,383 0.40% 31,770
Small De Lisle Partners LLP $850,810 0.38% 30,495
Large Assenagon Asset Management S.A. $782,176 0.35% 28,035
Mega LPL Financial LLC $767,361 0.34% 27,504
Mega FMR LLC $760,079 0.34% 27,243
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $737,173 0.33% 26,422
Mega ENVESTNET ASSET MANAGEMENT INC $733,993 0.33% 26,308
Small Ascentis Wealth Management, LLC $686,702 0.31% 24,613
Large Janney Montgomery Scott LLC $635,087 0.28% 22,763
Mega AMERIPRISE FINANCIAL INC $626,996 0.28% 22,473
Mega ROYAL BANK OF CANADA Bank $601,468 0.27% 21,558
Large STRS OHIO $560,790 0.25% 20,100
Large MARSHALL WACE, LLP $550,076 0.25% 19,716
Large Russell Investments Group, Ltd. $514,446 0.23% 18,439
Large Empowered Funds, LLC $464,953 0.21% 16,665
Mega BANK OF AMERICA CORP /DE/ Bank $444,753 0.20% 15,941
Mega Nuveen, LLC $361,109 0.16% 12,943
Mid Hillsdale Investment Management Inc. $354,330 0.16% 12,700
Mega JANE STREET GROUP, LLC $350,730 0.16% 12,571
Mega Invesco Ltd. $344,118 0.15% 12,334
Mid Atria Investments, Inc $320,236 0.14% 11,478
Mid Ancora Advisors LLC $318,897 0.14% 11,430
Large &PARTNERS $318,199 0.14% 11,405
Large STIFEL FINANCIAL CORP $295,543 0.13% 10,593
Large O'SHAUGHNESSY ASSET MANAGEMENT, LLC $286,309 0.13% 10,262
Small Marion Wealth Management $267,644 0.12% 9,593
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $256,735 0.12% 9,202
Mid MARTINGALE ASSET MANAGEMENT L P $255,452 0.11% 9,156
Mega BARCLAYS PLC $248,923 0.11% 8,922
Small R Squared Ltd $241,307 0.11% 8,649
Large OSAIC HOLDINGS, INC. $239,549 0.11% 8,586
Mid RITHOLTZ WEALTH MANAGEMENT $235,001 0.11% 8,423
Mid Sanctuary Advisors, LLC $233,355 0.10% 8,364
Mega DEUTSCHE BANK AG\ Bank $228,780 0.10% 8,200
Mega RHUMBLINE ADVISERS $226,185 0.10% 8,107
Small WealthTrust Axiom LLC $225,990 0.10% 8,100
Mid BAILARD, INC. $223,200 0.10% 8,000
Mega AQR CAPITAL MANAGEMENT LLC $221,439 0.10% 7,937
Mega PRICE T ROWE ASSOCIATES INC /MD/ $212,374 0.10% 7,612
Mega MILLENNIUM MANAGEMENT LLC $210,310 0.09% 7,538
Micro Orchard Capital Management, LLC $205,874 0.09% 7,379
Mega BNP PARIBAS ARBITRAGE, SA $177,220 0.08% 6,352
Large MetLife Investment Management, LLC $158,918 0.07% 5,696
Small State of Wyoming $143,796 0.06% 5,154
Micro Roble, Belko & Company, Inc $139,500 0.06% 5,000
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $134,254 0.06% 4,812
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $131,130 0.06% 4,700
Mega JPMORGAN CHASE & CO $115,756 0.05% 4,149
Mega WELLS FARGO & COMPANY/MN $104,735 0.05% 3,754
Mega Vanguard Global Advisers, LLC $94,636 0.04% 3,392
Large TD Waterhouse Canada Inc. $80,937 0.04% 2,901
Large Police & Firemen's Retirement System of New Jersey Pension $70,921 0.03% 2,542
Mega CITIGROUP INC $55,184 0.02% 1,978
Large FIFTH THIRD BANCORP Bank $47,374 0.02% 1,698
Mid Tower Research Capital LLC (TRC) $30,606 0.01% 1,097
Small Kemnay Advisory Services Inc. $29,183 0.01% 1,046
Mid Allworth Financial LP $29,071 0.01% 1,042
Mega Legal & General Group Plc $25,807 0.01% 925
Mid Ameritas Investment Partners, Inc. $24,775 0.01% 888
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $20,813 0.01% 746
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension $15,233 0.01% 546
Mid State of Alaska, Department of Revenue $12,303 0.01% 441
Large CWM, LLC $10,211 0.00% 366
Mid Sterling Capital Management LLC $9,179 0.00% 329
Large PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO Pension $9,067 0.00% 325
Mid Optiver Holding B.V. $2,790 0.00% 100
Large NewEdge Advisors, LLC $2,706 0.00% 97
Mid MassMutual Private Wealth & Trust, FSB $1,953 0.00% 70
Mid GAMMA Investing LLC $1,674 0.00% 60
Large ASSETMARK, INC $1,506 0.00% 54
Large NISA INVESTMENT ADVISORS, LLC $1,311 0.00% 47
Mid EverSource Wealth Advisors, LLC $1,113 0.00% 40
Small Covestor Ltd $669 0.00% 24
Small Essential Partners LLC $558 0.00% 20

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