Suncor Energy Inc.
US ˙ NYSE ˙ CA8672241079

SecuritySU / Suncor Energy Inc.
InstitutionGuardian Capital Lp
Latest Disclosed Ownership1,791,267 shares
Latest Disclosed Value $ 118,100,016
Guardian Capital Lp reports 9.95% decrease in ownership of SU / Suncor Energy Inc.

On May 15, 2026 - Guardian Capital Lp filed a 13F-HR form disclosing ownership of 1,791,267 shares of Suncor Energy Inc. (US:SU) valued at $118,420,661 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 18, 2026 disclosing 1,989,193 shares of Suncor Energy Inc.. This represents a change in shares of -9.95% during the quarter. The current value of the position is $117,310,076 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)
2026-05-15 2026-03-31 13F SUNCOR ENERGY INC COM 867224107 1,791,267 -197,926 -9.95 118,100 33.70 2.0588
2026-02-18 2025-12-31 13F SUNCOR ENERGY INC COM 867224107 1,989,193 121,333 6.50 88,331 12.98 2.6193
2025-11-12 2025-09-30 13F SUNCOR ENERGY INC COM 867224107 1,867,860 7,313 0.39 78,183 12.41 2.5239
2025-08-07 2025-06-30 13F SUNCOR ENERGY INC COM 867224107 1,860,547 -12,642 -0.67 69,554 -4.09 2.4574
2025-05-14 2025-03-31 13F SUNCOR ENERGY INC COM 867224107 1,873,189 -314,874 -14.39 72,520 -7.10 2.8523
2025-02-14 2024-12-31 13F SUNCOR ENERGY INC COM 867224107 2,188,063 -85,042 -3.74 78,063 -7.06 2.9013
2024-11-12 2024-09-30 13F SUNCOR ENERGY INC COM 867224107 2,273,105 -462,223 -16.90 83,995 -19.43 3.0761
2024-08-13 2024-06-30 13F SUNCOR ENERGY INC COM 867224107 2,735,328 -324,299 -10.60 104,248 -7.77 3.9309
2024-05-14 2024-03-31 13F SUNCOR ENERGY INC COM 867224107 3,059,627 -123,713 -3.89 113,025 10.29 3.9393
2024-02-08 2023-12-31 13F SUNCOR ENERGY INC COM 867224107 3,183,340 -530,761 -14.29 102,482 -20.13 3.6724
2023-11-13 2023-09-30 13F SUNCOR ENERGY INC COM 867224107 3,714,101 -338,722 -8.36 128,318 7.81 4.7753
2023-08-14 2023-06-30 13F SUNCOR ENERGY INC COM 867224107 4,052,823 -96,133 -2.32 119,020 -7.48 3.8105
2023-05-15 2023-03-31 13F SUNCOR ENERGY INC COM 867224107 4,148,956 -90,085 -2.13 128,636 -4.27 4.1004
2023-02-14 2022-12-31 13F SUNCOR ENERGY INC COM 867224107 4,239,041 -269,003 -5.97 134,372 5.28 4.4241
2022-11-14 2022-09-30 13F SUNCOR ENERGY INC COM 867224107 4,508,044 -55,470 -1.22 127,629 -20.11 4.3886
2022-08-12 2022-06-30 13F SUNCOR ENERGY INC COM 867224107 4,563,514 -2,480,243 -35.21 159,765 -30.39 4.8866
2022-05-16 2022-03-31 13F SUNCOR ENERGY INC COM 867224107 7,043,757 -1,109,686 -13.61 229,519 12.35 4.4614
2022-02-10 2021-12-31 13F SUNCOR ENERGY INC COM 867224107 8,153,443 -431,829 -5.03 204,296 14.80 3.9423
2021-11-15 2021-09-30 13F SUNCOR ENERGY INC COM 867224107 8,585,272 -26,749 -0.31 177,960 -13.81 3.6820
2021-08-17 2021-06-30 13F SUNCOR ENERGY INC COM 867224107 8,612,021 -503,125 -5.52 206,485 -13.77 4.0495
2021-05-17 2021-03-31 13F SUNCOR ENERGY INC COM 867224107 9,115,146 -262,606 -2.80 239,455 52.37 4.0125
2021-02-12 2020-12-31 13F SUNCOR ENERGY INC COM 867224107 9,377,752 5,516,710 142.88 157,155 234.37 3.6656
2020-11-16 2020-09-30 13F SUNCOR ENERGY INC COM 867224107 3,861,042 609,389 18.74 47,000 -14.00 1.2352
2020-08-13 2020-06-30 13F SUNCOR ENERGY INC COM 867224107 3,251,653 -805,467 -19.85 54,648 -14.64 1.4139
2020-05-15 2020-03-31 13F SUNCOR ENERGY INC COM 867224107 4,057,120 -3,389,568 -45.52 64,020 -73.81 1.9062
2020-02-13 2019-12-31 13F SUNCOR ENERGY INC COM 867224107 7,446,688 973,444 15.04 244,404 19.62 5.0819
2019-11-14 2019-09-30 13F SUNCOR ENERGY INC COM 867224107 6,473,244 963,989 17.50 204,318 18.64 4.0959
2019-08-14 2019-06-30 13F SUNCOR ENERGY INC COM 867224107 5,509,255 650,081 13.38 172,224 9.25 3.3510
2019-05-15 2019-03-31 13F SUNCOR ENERGY INC COM 867224107 4,859,174 282,880 6.18 157,641 23.39 2.9035
2019-02-13 2018-12-31 13F SUNCOR ENERGY INC COM 867224107 4,576,294 293,847 6.86 127,760 -22.84 2.6688
2018-11-13 2018-09-30 13F SUNCOR ENERGY INC COM 867224107 4,282,447 -58,362 -1.34 165,579 -6.28 2.7768
2018-08-14 2018-06-30 13F SUNCOR ENERGY INC COM 867224107 4,340,809 1,232,137 39.64 176,683 64.84 2.9883
2018-05-14 2018-03-31 13F SUNCOR ENERGY INC COM 867224107 3,108,672 -489,857 -13.61 107,186 -19.26 1.8504
2018-02-14 2017-12-31 13F SUNCOR ENERGY INC COM 867224107 3,598,529 -75,963 -2.07 132,751 3.36 1.9573
2017-11-15 2017-09-30 13F SUNCOR ENERGY INC COM 867224107 3,674,492 -55,454 -1.49 128,440 17.99 1.8990
2017-08-14 2017-06-30 13F SUNCOR ENERGY INC COM 867224107 3,729,946 -13,516 -0.36 108,856 -5.13 1.7007
2017-05-15 2017-03-31 13F SUNCOR ENERGY INC COM 867224107 3,743,462 -699,820 -15.75 114,739 -21.02 1.7469
2017-02-14 2016-12-31 13F SUNCOR ENERGY INC COM 867224107 4,443,282 252,786 6.03 145,275 24.86 2.1449
2016-11-14 2016-09-30 13F SUNCOR ENERGY INC COM 867224107 4,190,496 424,374 11.27 116,351 12.14 1.8263
2016-08-12 2016-06-30 13F SUNCOR ENERGY INC COM 867224107 3,766,122 265,883 7.60 103,757 6.30 1.6949
2016-05-12 2016-03-31 13F SUNCOR ENERGY INC COM 867224107 3,500,239 -997 -0.03 97,605 8.01 1.6470
2016-02-12 2015-12-31 13F SUNCOR ENERGY INC COM 867224107 3,501,236 -57,966 -1.63 90,364 -4.72 1.7354
2015-11-12 2015-09-30 13F SUNCOR ENERGY INC COM 867224107 3,559,202 699,500 24.46 94,839 20.26 1.8013
2015-08-13 2015-06-30 13F SUNCOR ENERGY INC COM 867224107 2,859,702 289,746 11.27 78,863 5.16 1.3378
2015-05-14 2015-03-31 13F SUNCOR ENERGY INC COM 867224107 2,569,956 -326,824 -11.28 74,993 -18.61 1.2755
2015-02-13 2014-12-31 13F SUNCOR ENERGY INC COM 867224107 2,896,780 -167,744 -5.47 92,140 -16.85 1.4710
2014-11-12 2014-09-30 13F SUNCOR ENERGY INC COM 867224107 3,064,524 41,577 1.38 110,818 -13.98 1.6646
2014-08-14 2014-06-30 13F SUNCOR ENERGY INC COM 867224107 3,022,947 -92,337 -2.96 128,835 18.39 1.8635
2014-05-14 2014-03-31 13F SUNCOR ENERGY INC COM 867224107 3,115,284 34,879 1.13 108,822 0.90 1.6888
2014-02-13 2013-12-31 13F SUNCOR ENERGY INC COM 867224107 3,080,405 -214,610 -6.51 107,855 -8.59 1.7085
2013-11-06 2013-09-30 13F SUNCOR ENERGY INC COM 867224107 3,295,015 -383,562 -10.43 117,993 8.77 1.9254
2013-08-12 2013-06-30 13F SUNCOR ENERGY INC COM 867224107 3,678,577 3,678,577 108,482 1.9136
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.