STATE OF WISCONSIN INVESTMENT BOARD
Position in PRIM — Primoris Services Corp
CIK 854157
MADISON, WI
Position in PRIM
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$22,124,282
+$195,324 QoQ
Shares Held
154,672
-12.4% QoQ
Ownership
0.285%
of shares outstanding
% of Portfolio
0.06%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2021
18 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in PRIM Over Time
Shares Held
Position Value (USD)
Position in Engineering & Construction
Industrials · as of Mar 31, 2026STATE OF WISCONSIN INVESTMENT BOARD holds $268,183,993 across 31 Engineering & Construction names. PRIM ranks #3 (8.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | PWR |
Quanta Services, Inc.
|
89,988 | $49,405,211 | |
| 2 | FIX |
Comfort Systems USA Inc
|
24,526 | $33,821,108 | |
| 3 | PRIM |
Primoris Services Corp
This page
|
154,672 | $22,124,282 | |
| 4 | GVA |
Granite Construction Inc
|
183,511 | $21,999,298 | |
| 5 | EME |
EMCOR Group, Inc.
|
24,273 | $17,920,998 | |
| 6 | MTZ |
Mastec Inc
|
47,641 | $15,328,015 | |
| 7 | ROAD |
Construction Partners, Inc.
|
123,522 | $13,725,764 | |
| 8 | J |
Jacobs Solutions Inc.
|
99,260 | $12,633,812 |
All Filings in PRIM
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18 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $22,124,282 | 154,672 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $21,928,958 | 176,647 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $25,002,437 | 182,061 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $15,072,660 | 193,388 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $13,558,290 | 236,166 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $18,132,776 | 237,340 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $14,843,970 | 255,578 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $11,528,481 | 231,078 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $9,411,631 | 221,086 | Shares | Sole | 2024-05-14 | |
| 2023-12-31 | $8,269,588 | 249,009 | Shares | Sole | 2024-02-12 | |
| 2023-09-30 | $6,035,673 | 184,408 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $6,258,720 | 205,406 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $5,116,555 | 207,484 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $5,402,373 | 246,234 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $4,055,138 | 249,547 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $5,332,984 | 245,082 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $4,775,910 | 200,500 | Shares | Sole | 2022-05-13 | |
| 2021-03-31 | $308,109 | 9,300 | Shares | Sole | 2021-05-17 | |
| No filing history on record for this holder in this stock. | ||||||