Adams Natural Resources Fund, Inc.
US ˙ NYSE ˙ US00548F1057

SecurityPEO / Adams Natural Resources Fund, Inc.
InstitutionSearle & Co.
Latest Disclosed Ownership10,060 shares
Latest Disclosed Value $ 279,668
Searle & Co. reports 1.88% increase in ownership of PEO / Adams Natural Resources Fund, Inc.

On May 8, 2026 - Searle & Co. filed a 13F-HR form disclosing ownership of 10,060 shares of Adams Natural Resources Fund, Inc. (US:PEO) valued at $279,668 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 9,874 shares of Adams Natural Resources Fund, Inc.. This represents a change in shares of 1.88% during the quarter. The current value of the position is $266,992 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)
2026-05-08 2026-03-31 13F ADAM NAT RES FD COM 00548F105 10,060 186 1.88 280 30.37 0.0703
2026-02-13 2025-12-31 13F ADAM NAT RES FD COM 00548F105 9,874 114 1.17 215 1.90 0.0554
2025-11-04 2025-09-30 13F ADAM NAT RES FD COM 00548F105 9,760 229 2.40 210 3.45 0.0556
2025-08-07 2025-06-30 13F ADAM NAT RES FD COM 00548F105 9,531 229 2.46 204 -4.25 0.0575
2025-05-15 2025-03-31 13F ADAM NAT RES FD COM 00548F105 9,302 9,302 212 0.0605
2025-02-14 2024-12-31 13F ADAM NAT RES FD COM 00548F105 0 -8,696 -100.00 0 -100.00
2024-10-22 2024-09-30 13F ADAM NAT RES FD COM 00548F105 8,696 200 2.35 202 0.50 0.0504
2024-07-30 2024-06-30 13F ADAM NAT RES FD COM 00548F105 8,496 8,496 201 0.0470
2017-05-01 2017-03-31 13F ADAM NAT RES FD COM 00548F105 0 -11,409 -100.00 0 -100.00
2017-01-09 2016-12-31 13F ADAM NAT RES FD COM 00548F105 11,409 11,409 0.00 230 0.0651
2016-01-11 2015-12-31 13F ADAM NAT RES FD INC COM COM 00548F105 0 0 0 0.0000
2015-11-12 2015-09-30 13F ADAM NAT RES FD INC COM COM 00548F105 0 -8,597 -100.00 0 -100.00
2015-09-29 2015-06-30 13F ADAM NAT RES FD INC COM COM 00548F105 8,597 0 0.00 191 -4.02 0.1593
2015-09-29 2015-03-31 13F ADAM NAT RES FD INC COM COM 00548F105 8,597 8,597 199 0.1712
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.