Who owns FOSTER L B CO?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from SEC filings.
Institutional ownership of FSTR from SEC Form 13F filings across 94 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, 94 institutions disclosed 5.0M shares of FOSTER L B CO worth $212.3M — about 48.3% of shares outstanding; the largest disclosed holder is BRANDES INVESTMENT PARTNERS, LP. Source: SEC Form 13F filings, parsed by EvidInvest.
94
13F holders
$212.3M
value, 2026 filers
48.3%
of shares outstanding (5.0M sh)
22
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 | BlackRock, Inc. | 743,232 | $33.6M | 0.0% | 7.2% | +5.7% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 422,980 | $19.1M | 0.0% | 4.1% | -45.0% |
| 4 | ACADIAN ASSET MANAGEMENT LLC | 267,997 | $12,096 | 0.0% | 2.6% | +105.7% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | 246,464 | $11.1M | 0.0% | 2.4% | +7.8% |
| 6 | AMERICAN CENTURY COMPANIES INC | 196,121 | $8.9M | 0.0% | 1.9% | +134.7% |
| 7 | TWO SIGMA INVESTMENTS, LPNEW | 144,194 | $6.5M | 0.0% | 1.4% | new |
| 8 | UBS Group AG | 108,203 | $4.9M | 0.0% | 1% | +10.2% |
| 9 | NORTHERN TRUST CORP | 82,120 | $3.7M | 0.0% | 0.8% | +5.0% |
| 10 | Wealthspire Advisors, LLC | 80,907 | $3.7M | 0.0% | 0.8% | 0.0% |
| 11 | Qube Research & Technologies Ltd | 73,231 | $3.3M | 0.0% | 0.7% | +45.0% |
| 12 | VANGUARD PORTFOLIO MANAGEMENT LLC | 66,408 | $3.0M | 0.0% | 0.6% | +15.9% |
| 13 | VANGUARD FIDUCIARY TRUST CO | 63,914 | $2.9M | 0.0% | 0.6% | +5.6% |
| 14 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 58,824 | $2.7M | 0.0% | 0.6% | +539.3% |
| 15 | MORGAN STANLEY | 54,826 | $2.5M | 0.0% | 0.5% | +11.7% |
| 16 | MARSHALL WACE, LLP | 51,018 | $2.3M | 0.0% | 0.5% | +158.8% |
| 17 | Russell Investments Group, Ltd. | 47,831 | $2.2M | 0.0% | 0.5% | +159.4% |
| 18 | LPL Financial LLC | 44,702 | $2.0M | 0.0% | 0.4% | +62.5% |
| 19 | LAZARD ASSET MANAGEMENT LLCNEW | 40,298 | $1.8M | 0.0% | 0.4% | new |
| 20 | Assenagon Asset Management S.A. | 40,176 | $1.8M | 0.0% | 0.4% | +43.3% |
| 21 | GOLDMAN SACHS GROUP INC | 38,461 | $1.7M | 0.0% | 0.4% | -2.9% |
| 22 | Bank of New York Mellon Corp | 38,279 | $1.7M | 0.0% | 0.4% | +9.8% |
| 23 | LOS ANGELES CAPITAL MANAGEMENT LLCNEW | 32,582 | $1.5M | 0.0% | 0.3% | new |
| 24 | CITADEL ADVISORS LLCNEW | 31,932 | $1.4M | 0.0% | 0.3% | new |
| 25 | FMR LLC | 30,155 | $1.4M | 0.0% | 0.3% | +10.7% |
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.