Who owns FOSTER L B CO?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of FSTR from SEC Form 13F filings across 133 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 133 institutions disclosed 8.3M shares of FOSTER L B CO worth $373.5M — about 79.9% of shares outstanding; the largest disclosed holder is BRANDES INVESTMENT PARTNERS, LP. Source: SEC Form 13F filings, parsed by EvidInvest.
133
13F holders
$373.5M
value, 2026 filers
79.9%
of shares outstanding (8.3M sh)
36
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of FSTR's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BRANDES INVESTMENT PARTNERS, LP | 1.4M | $64.6M | 0.5% | 13.8% | -3.4% |
| 2 | GAMCO INVESTORS, INC. ET AL | 885,439 | $40.0M | 0.4% | 8.6% | -1.8% |
| 3 | BlackRock, Inc. | 743,232 | $33.6M | 0.0% | 7.2% | +5.7% |
| 4 | DIMENSIONAL FUND ADVISORS LP | 677,098 | $30.6M | 0.0% | 6.5% | -2.4% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 422,980 | $19.1M | 0.0% | 4.1% | +9.9% |
| 6 | RENAISSANCE TECHNOLOGIES LLC | 356,350 | $16.1M | 0.0% | 3.4% | +12.6% |
| 7 | ACADIAN ASSET MANAGEMENT LLC | 267,997 | $12.1M | 0.0% | 2.6% | +105.7% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 246,464 | $11.1M | 0.0% | 2.4% | +7.8% |
| 9 | Hillsdale Investment Management Inc. | 218,150 | $9.9M | 0.2% | 2.1% | +1617.7% |
| 10 | AMERICAN CENTURY COMPANIES INC | 196,121 | $8.9M | 0.0% | 1.9% | +134.7% |
| 11 | STATE STREET CORP | 191,768 | $8.7M | 0.0% | 1.9% | +25.7% |
| 12 | TWO SIGMA INVESTMENTS, LPNEW | 144,194 | $6.5M | 0.0% | 1.4% | new |
| 13 | GABELLI FUNDS LLC | 124,600 | $5.6M | 0.0% | 1.2% | -6.3% |
| 14 | Bragg Financial Advisors, Inc | 113,882 | $5.1M | 0.1% | 1.1% | 0.0% |
| 15 | UBS Group AG | 108,203 | $4.9M | 0.0% | 1% | +10.2% |
| 16 | HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 91,157 | $4.1M | 0.0% | 0.9% | -33.0% |
| 17 | Teton Advisors, LLC | 84,040 | $3.8M | 2.2% | 0.8% | -14.8% |
| 18 | NORTHERN TRUST CORP | 82,120 | $3.7M | 0.0% | 0.8% | +5.0% |
| 19 | Wealthspire Advisors, LLC | 80,907 | $3.7M | 0.0% | 0.8% | 0.0% |
| 20 | Qube Research & Technologies Ltd | 73,231 | $3.3M | 0.0% | 0.7% | +45.0% |
| 21 | Minerva Advisors LLC | 67,922 | $3.1M | 1.9% | 0.7% | -19.1% |
| 22 | VANGUARD PORTFOLIO MANAGEMENT LLC | 66,408 | $3.0M | 0.0% | 0.6% | +15.9% |
| 23 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 65,397 | $3.0M | 0.1% | 0.6% | +1.8% |
| 24 | VANGUARD FIDUCIARY TRUST CO | 63,914 | $2.9M | 0.0% | 0.6% | +5.6% |
| 25 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 58,824 | $2.7M | 0.0% | 0.6% | +539.3% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.