Delek US Holdings, Inc.
US ˙ NYSE ˙ US24665A1034

SecurityDK / Delek US Holdings, Inc.
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership249,518 shares
Latest Disclosed Value $ 11,245,777
Marshall Wace, Llp ownership in DK / Delek US Holdings, Inc.

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 249,518 shares of Delek US Holdings, Inc. (US:DK) valued at $11,245,776 USD as of March 31, 2026. The entity filed a previous 13F-HR on August 13, 2025 disclosing 0 shares of Delek US Holdings, Inc.. The current value of the position is $11,772,259 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 DELEK US HOLDING COMMON STOCK 24665A103 249,518 249,518 11,246 0.0053
2025-08-13 2025-06-30 13F DELEK US HOLDING COMMON STOCK 24665A103 0 -51,978 -100.00 0 -100.00
2025-05-15 2025-03-31 13F DELEK US HOLDING COMMON STOCK 24665A103 51,978 20,973 67.64 783 36.65 0.0010
2025-02-13 2024-12-31 13F DELEK US HOLDING COMMON STOCK 24665A103 31,005 -28,714 -48.08 574 -48.79 0.0007
2024-11-14 2024-09-30 13F DELEK US HOLDING COMMON STOCK 24665A103 59,719 51,219 602.58 1,120 432.86 0.0014
2024-08-14 2024-06-30 13F DELEK US HOLDING COMMON STOCK 24665A103 8,500 -26,975 -76.04 210 -80.73 0.0003
2024-05-15 2024-03-31 13F DELEK US HOLDING COMMON STOCK 24665A103 35,475 35,475 1,091 0.0017
2024-02-14 2023-12-31 13F DELEK US HOLDING COMMON STOCK 24665A103 0 -29,763 -100.00 0 -100.00
2023-11-14 2023-09-30 13F DELEK US HOLDING COMMON STOCK 24665A103 29,763 29,763 846 0.0017
2022-11-14 2022-09-30 13F DELEK US HOLDING COMMON STOCK 24665A103 0 -589,186 -100.00 0 -100.00
2022-08-15 2022-06-30 13F DELEK US HOLDING COMMON STOCK 24665A103 589,186 589,186 15,226 0.0313
2020-02-14 2019-12-31 13F DELEK US HOLDING COMMON STOCK 24665A103 0 -10,786 -100.00 0 -100.00
2019-11-14 2019-09-30 13F DELEK US HOLDING COMMON STOCK 24665A103 10,786 -58,273 -84.38 392 -85.99 0.0031
2019-08-14 2019-06-30 13F DELEK US HOLDING COMMON STOCK 24665A103 69,059 69,059 2,798 0.0230
2019-05-14 2019-03-31 13F DELEK US HOLDING COMMON STOCK 24665A103 0 -148,536 -100.00 0 -100.00
2019-02-14 2018-12-31 13F DELEK US HOLDING COMMON STOCK 24665A103 148,536 46,748 45.93 4,829 11.81 0.0493
2018-12-06 2018-09-30 13F/A-1 DELEK US HOLDING COMMON STOCK 24665A103 101,788 5,230 5.42 4,319 -10.84 0.0367
2018-11-14 2018-09-30 13F DELEK US HOLDING COMMON STOCK 24665A103 101,788 5,230 4,319
2018-08-14 2018-06-30 13F DELEK US HOLDING COMMON STOCK 24665A103 96,558 35,897 59.18 4,844 96.19 0.0725
2018-05-15 2018-03-31 13F DELEK US HOLDING COMMON STOCK 24665A103 60,661 48,718 407.92 2,469 492.09 0.1023
2018-03-29 2017-12-31 13F/A-1 DELEK US HOLDING COMMON STOCK 24665A103 11,943 11,943 417 0.0175
2018-02-14 2017-12-31 13F DELEK US HOLDING COMMON STOCK 24665A103 11,943 11,943 417
2016-05-13 2016-03-31 13F DELEK US HOLDING COMMON STOCK 246647101 0 -148,229 -100.00 0 -100.00
2016-02-10 2015-12-31 13F DELEK US HOLDING COMMON STOCK 246647101 148,229 148,229 0.00 3,646 0.0342
2015-05-11 2015-03-31 13F DELEK US HOLDING COMMON STOCK 246647101 0 -154,590 -100.00 0 -100.00
2015-02-17 2014-12-31 13F DELEK US HOLDING COMMON STOCK 246647101 154,590 154,590 4,217 0.0557
2014-11-13 2014-09-30 13F DELEK US HOLDING COMMON STOCK 246647101 0 -58,067 -100.00 0 -100.00
2014-08-14 2014-06-30 13F DELEK US HOLDING COMMON STOCK 246647101 58,067 -131,933 -69.44 1,639 -70.30 0.0241
2014-05-14 2014-03-31 13F DELEK US HOLDING COMMON STOCK 246647101 190,000 190,000 5,518 0.1004
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.