Sterling Infrastructure, Inc.
US ˙ NasdaqGS ˙ US8592411016

SecuritySTRL / Sterling Infrastructure, Inc.
InstitutionBoston Partners
Latest Disclosed Ownership57,892 shares
Latest Disclosed Value $ 23,102,287
Boston Partners reports 34.57% decrease in ownership of STRL / Sterling Infrastructure, Inc.

On May 11, 2026 - Boston Partners filed a 13F-HR form disclosing ownership of 57,892 shares of Sterling Infrastructure, Inc. (US:STRL) valued at $23,577,675 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 88,478 shares of Sterling Infrastructure, Inc.. This represents a change in shares of -34.57% during the quarter. The current value of the position is $55,404,381 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-11 2026-03-31 13F STERLING INFRASTRUCTURE COM 859241101 57,892 -30,586 -34.57 23,102 -13.11 0.0242
2026-02-13 2025-12-31 13F STERLING INFRASTRUCTURE COM 859241101 88,478 -10,693 -10.78 26,589 -20.34 0.0275
2025-11-13 2025-09-30 13F STERLING INFRASTRUCTURE COM 859241101 99,171 -132,658 -57.22 33,379 -40.02 0.0343
2025-08-12 2025-06-30 13F/A-1 STERLING INFRASTRUCTURE COM 859241101 231,829 -29,118 -11.16 55,654 83.63 0.0618
2025-08-07 2025-06-30 13F STERLING INFRASTRUCTURE COM 859241101 231,829 -29,118 55,654 0.0256
2025-05-13 2025-03-31 13F STERLING INFRASTRUCTURE COM 859241101 260,947 78,215 42.80 30,308 -2.18 0.0367
2025-02-11 2024-12-31 13F STERLING INFRASTRUCTURE COM 859241101 182,732 4,244 2.38 30,983 17.68 0.0377
2024-11-12 2024-09-30 13F STERLING INFRASTRUCTURE COM 859241101 178,488 -23,764 -11.75 26,329 9.55 0.0311
2024-08-14 2024-06-30 13F STERLING INFRASTRUCTURE COM 859241101 202,252 181,701 884.15 24,033 1,062.65 0.0299
2024-05-28 2024-03-31 13F/A-1 STERLING INFRASTRUCTURE COM 859241101 20,551 -9,360 -31.29 2,067 -8.78 0.0025
2024-05-13 2024-03-31 13F STERLING INFRASTRUCTURE COM 859241101 20,551 -9,360 2,067 0.0010
2024-02-07 2023-12-31 13F STERLING INFRASTRUCTURE COM 859241101 29,911 -996 -3.22 2,267 26.03 0.0030
2023-11-08 2023-09-30 13F STERLING INFRASTRUCTURE COM 859241101 30,907 1,455 4.94 1,798 24.34 0.0025
2023-08-10 2023-06-30 13F STERLING INFRASTRUCTURE COM 859241101 29,452 1,761 6.36 1,447 37.98 0.0019
2023-05-09 2023-03-31 13F STERLING INFRASTRUCTURE COM 859241101 27,691 27,691 1,049 0.0014
2017-05-03 2017-03-31 13F STERLING CONSTRUCTION COM 859241101 0 -172,696 -100.00 0 -100.00
2017-02-06 2016-12-31 13F STERLING CONSTRUCTION COM 859241101 172,696 -1,063,961 -86.04 1,461 -84.74 0.0019
2016-11-09 2016-09-30 13F STERLING CONSTRUCTION COM 859241101 1,236,657 -78,899 -6.00 9,572 48.17 0.0134
2016-08-05 2016-06-30 13F STERLING CONSTRUCTION COM 859241101 1,315,556 828,616 170.17 6,460 157.58 0.0093
2016-05-12 2016-03-31 13F STERLING CONSTRUCTION COM 859241101 486,940 2,730 0.56 2,508 -14.81 0.0037
2016-02-08 2015-12-31 13F STERLING CONSTRUCTION COM 859241101 484,210 -9,014 -1.83 2,944 45.24 0.0042
2015-11-10 2015-09-30 13F STERLING CONSTRUCTION COM 859241101 493,224 143,814 41.16 2,027 44.99 0.0031
2015-08-10 2015-06-30 13F STERLING CONSTRUCTION COM 859241101 349,410 -9,250 -2.58 1,398 -13.76 0.0020
2015-05-05 2015-03-31 13F STERLING CONSTRUCTION COM 859241101 358,660 307,010 594.40 1,621 391.21 0.0024
2015-02-09 2014-12-31 13F STERLING CONSTRUCTION COM 859241101 51,650 5,750 12.53 330 -6.25 0.0005
2014-11-12 2014-09-30 13F STERLING CONSTRUCTION COM 859241101 45,900 0 0.00 352 -18.33 0.0006
2014-08-08 2014-06-30 13F STERLING CONSTRUCTION COM 859241101 45,900 0 0.00 431 8.29 0.0007
2014-05-07 2014-03-31 13F STERLING CONSTRUCTION COM 859241101 45,900 45,900 398 0.0007
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.