Orion Group Holdings, Inc.
DE ˙ DB ˙ US68628V3087
11,80 € ↓ -0,20 (-1,67%)
2026-06-04
DEL PRIS
SecurityDE:0OM / Orion Group Holdings, Inc.
InstitutionRenaissance Technologies Llc
ManagerJames Simons
Latest Disclosed Ownership193,414 shares
Latest Disclosed Value $ 2,108,213
Renaissance Technologies Llc reports 18.80% decrease in ownership of 0OM / Orion Group Holdings, Inc.

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 193,414 shares of Orion Group Holdings, Inc. (DE:0OM) valued at $1,798,750 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 238,197 shares of Orion Group Holdings, Inc.. This represents a change in shares of -18.80% during the quarter. The current value of the position is $2,282,285 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.

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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)
2026-05-14 2026-03-31 13F ORION GROUP HLDGS COM 68628V308 193,414 -44,783 -18.80 2,108 -10.94 0.0033
2026-02-12 2025-12-31 13F ORION GROUP HLDGS COM 68628V308 238,197 -154,000 -39.27 2,368 -27.46 0.0037
2025-11-13 2025-09-30 13F ORION GROUP HLDGS COM 68628V308 392,197 2,400 0.62 3,263 -7.69 0.0043
2025-08-13 2025-06-30 13F ORION GROUP HLDGS COM 68628V308 389,797 150,700 63.03 3,535 182.80 0.0047
2025-05-14 2025-03-31 13F ORION GROUP HLDGS COM 68628V308 239,097 32,207 15.57 1,250 -17.55 0.0019
2025-02-13 2024-12-31 13F ORION GROUP HLDGS COM 68628V308 206,890 -199,727 -49.12 1,517 -35.38 0.0022
2024-11-13 2024-09-30 13F ORION GROUP HLDGS COM 68628V308 406,617 143,620 54.61 2,346 -6.20 0.0035
2024-08-09 2024-06-30 13F ORION GROUP HLDGS COM 68628V308 262,997 1,200 0.46 2,501 124,950.00 0.0042
2024-05-13 2024-03-31 13F ORION GROUP HLDGS COM 68628V308 261,797 -4,000 -1.50 2 100.00 0.0034
2024-02-13 2023-12-31 13F ORION GROUP HLDGS COM 68628V308 265,797 1,900 0.72 1 0.00 0.0020
2023-11-14 2023-09-30 13F ORION GROUP HLDGS COM 68628V308 263,897 -3,242 -1.21 1 0.0024
2023-08-11 2023-06-30 13F ORION GROUP HLDGS COM 68628V308 267,139 14,942 5.92 1 0.0011
2023-05-12 2023-03-31 13F ORION GROUP HLDGS COM 68628V308 252,197 19,900 8.57 1 0.0009
2023-02-13 2022-12-31 13F ORION GROUP HLDGS COM 68628V308 232,297 -12,500 -5.11 1 -100.00 0.0008
2022-11-14 2022-09-30 13F ORION GROUP HLDGS COM 68628V308 244,797 -17,700 -6.74 646 8.03 0.0009
2022-08-12 2022-06-30 13F ORION GROUP HLDGS COM 68628V308 262,497 -7,600 -2.81 598 -10.75 0.0007
2022-05-13 2022-03-31 13F ORION GROUP HLDGS COM 68628V308 270,097 -31,300 -10.38 670 -41.02 0.0008
2022-02-11 2021-12-31 13F ORION GROUP HLDGS COM 68628V308 301,397 -175,538 -36.81 1,136 -56.22 0.0014
2021-11-12 2021-09-30 13F ORION GROUP HLDGS COM 68628V308 476,935 -79,169 -14.24 2,595 -18.86 0.0034
2021-08-13 2021-06-30 13F ORION GROUP HLDGS COM 68628V308 556,104 -109,593 -16.46 3,198 -20.86 0.0040
2021-05-13 2021-03-31 13F ORION GROUP HLDGS COM 68628V308 665,697 -153,666 -18.75 4,041 -0.57 0.0050
2021-02-10 2020-12-31 13F ORION GROUP HOLDINGS COM 68628V308 819,363 70,166 9.37 4,064 97.28 0.0044
2020-11-13 2020-09-30 13F ORION GROUP HOLDINGS COM 68628V308 749,197 -140,000 -15.74 2,060 -26.22 0.0021
2020-08-13 2020-06-30 13F ORION GROUP HOLDINGS COM 68628V308 889,197 -50,600 -5.38 2,792 14.29 0.0024
2020-05-14 2020-03-31 13F ORION GROUP HOLDINGS COM 68628V308 939,797 268,979 40.10 2,443 -29.84 0.0024
2020-02-13 2019-12-31 13F ORION GROUP HOLDINGS COM 68628V308 670,818 224,721 50.37 3,482 73.49 0.0027
2019-11-13 2019-09-30 13F ORION GROUP HOLDINGS COM 68628V308 446,097 -164,998 -27.00 2,007 22.53 0.0017
2019-08-12 2019-06-30 13F ORION GROUP HOLDINGS COM 68628V308 611,095 144,600 31.00 1,638 20.26 0.0014
2019-05-14 2019-03-31 13F ORION GROUP HOLDINGS COM 68628V308 466,495 -5,400 -1.14 1,362 -32.71 0.0012
2019-02-12 2018-12-31 13F ORION GROUP HOLDINGS COM 68628V308 471,895 -207,394 -30.53 2,024 -60.54 0.0022
2018-11-13 2018-09-30 13F ORION GROUP HOLDINGS COM 68628V308 679,289 154,074 29.34 5,129 18.23 0.0053
2018-08-13 2018-06-30 13F/A-1 ORION GROUP HOLDINGS COM 68628V308 525,215 6,815 1.31 4,338 26.99 0.0047
2018-08-13 2018-06-30 13F ORION GROUP HOLDINGS COM 68628V308 518,400 3,416
2018-05-14 2018-03-31 13F ORION GROUP HOLDINGS COM 68628V308 518,400 4,706 0.92 3,416 -15.07 0.0037
2018-02-13 2017-12-31 13F ORION GROUP HOLDINGS COM 68628V308 513,694 -78,406 -13.24 4,022 3.55 0.0044
2017-11-13 2017-09-30 13F ORION GROUP HOLDINGS COM 68628V308 592,100 33,800 6.05 3,884 -6.88 0.0046
2017-08-11 2017-06-30 13F ORION GROUP HOLDINGS COM 68628V308 558,300 -83,400 -13.00 4,171 -12.98 0.0053
2017-05-12 2017-03-31 13F ORION GROUP HOLDINGS COM 68628V308 641,700 -19,000 -2.88 4,793 -27.09 0.0067
2017-02-13 2016-12-31 13F ORION GROUP HOLDINGS COM 68628V308 660,700 102,600 18.38 6,574 71.96 0.0104
2016-11-14 2016-09-30 13F ORION GROUP HOLDINGS COM 68628V308 558,100 11,800 2.16 3,823 31.78 0.0068
2016-08-12 2016-06-30 13F ORION GROUP HOLDINGS COM 68628V308 546,300 -1,900 -0.35 2,901 2.15 0.0055
2016-05-13 2016-03-31 13F ORION MARINE GROUP COM 68628V308 548,200 27,300 5.24 2,840 30.76 0.0054
2016-02-11 2015-12-31 13F ORION MARINE GROUP COM 68628V308 520,900 147,700 39.58 2,172 -2.69 0.0047
2015-11-12 2015-09-30 13F ORION MARINE GROUP COM 68628V308 373,200 -21,700 -5.50 2,232 -21.71 0.0053
2015-08-14 2015-06-30 13F ORION MARINE GROUP COM 68628V308 394,900 167,400 73.58 2,851 41.42 0.0065
2015-05-13 2015-03-31 13F ORION MARINE GROUP COM 68628V308 227,500 111,900 96.80 2,016 57.87 0.0043
2015-02-13 2014-12-31 13F ORION MARINE GROUP COM 68628V308 115,600 -14,200 -10.94 1,277 -1.39 0.0031
2014-11-12 2014-09-30 13F ORION MARINE GROUP COM 68628V308 129,800 47,800 58.29 1,295 45.83 0.0035
2014-08-13 2014-06-30 13F ORION MARINE GROUP COM 68628V308 82,000 49,600 153.09 888 118.18 0.0021
2014-05-14 2014-03-31 13F ORION MARINE GROUP COM 68628V308 32,400 32,400 -60.49 407 -54.17 0.0010
2014-02-14 2013-12-31 13F ORION MARINE GROUP COM 68628V308 0 -136,400 -100.00 0 -100.00
2013-11-13 2013-09-30 13F ORION MARINE GROUP COM 68628V308 136,400 -30,816 -18.43 1,420 -29.77 0.0034
2013-08-12 2013-06-30 13F ORION MARINE GROUP COM 68628V308 167,216 167,216 2,022 0.0053
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.