% of shares outstanding not shown: no SEC cover-page share count falls within 120 days of the 2026-Q1 quarter end, so any percentage would rest on a count that cannot speak for this quarter. Holder share counts are shown as filed.
Crowding percentile withheld — no market cap for SUN in the served universe — the cohort is size-matched, and an unmatched percentile would compare a micro-cap register to a mega-cap one.
Rows rank by the value each filer reported — 13F filers price their own positions, so a holder with fewer shares can rank just above one with more.
| Holder | 2024-Q4 | 2025-Q1 | 2025-Q2 | 2025-Q3 | 2025-Q4 | 2026-Q1 | Latest value |
|---|---|---|---|---|---|---|---|
| ALPS ADVISORS INC | 20.6M | 23.1M | 23.5M | 24.1M | 24.9M | 24.7M | $1.6B |
| Invesco Ltd. | 8.9M | 9.2M | 9.1M | 9.0M | 8.8M | 8.9M | $575M |
| GOLDMAN SACHS GROUP INC | 6.7M | 6.5M | 6.5M | 6.4M | 5.9M | 5.5M | $359M |
| FMR LLC | 24K | 21K | 24K | 366K | 1.8M | 3.6M | $236M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 2.6M | 3.0M | 2.8M | 3.2M | 3.1M | 3.2M | $210M |
| Energy Income Partners, LLC | 1.8M | 1.8M | 1.9M | 1.9M | 2.0M | 1.9M | $124M |
| COOPERMAN LEON G | — | 285K | 1.5M | 1.6M | 1.6M | 1.6M | $105M |
| JPMORGAN CHASE & CO | 2.2M | 1.7M | 772K | 887K | 1.6M | 1.5M | $100M |
| MORGAN STANLEY | 1.7M | 1.2M | 1.1M | 1.0M | 1.6M | 1.1M | $72M |
| Recurrent Investment Advisors LLC | 889K | 933K | 934K | 934K | 679K | 1.0M | $67M |
| INFRASTRUCTURE CAPITAL ADVISORS, LLC | 1.2M | 296K | 983K | 648K | 725K | 973K | $63M |
| UBS Group AG | 1.0M | 1.0M | 1.2M | 1.0M | 967K | 960K | $62M |
| Blackstone Inc. | 1.3M | 1.8M | 1.8M | 1.9M | 2.4M | 894K | $58M |
| MILLER HOWARD INVESTMENTS INC /NY | 595K | 687K | 691K | 695K | 689K | 816K | $53M |
| TORTOISE CAPITAL ADVISORS, L.L.C. | 1.3M | 1.2M | 1.4M | 1.5M | 801K | 815K | $53M |
Shares reported each quarter by the largest current holders. Green = added vs the prior filing, red = trimmed, grey = roughly held; a dash is a quarter with no 13F on file (a gap is skipped, not read as an exit). 13F is filed up to 45 days after quarter-end. Up to 40 quarters (10 years) available — use the selector above.
Holder count only — too few computable %-of-shares-outstanding quarters for a % pane. Line breaks are quarters with no 13F record, never interpolated.
Short interest has its own tab now — open SI →
Source: SEC Form 13F — every institution manager (≥ $100M in 13F securities) reporting a long US-listed position, across ~10,250 filers over 10 years of history. 13F is long-only, US-listed, filed up to 45 days after quarter-end.
| Holder | % of class | Type | As of | |
|---|---|---|---|---|
| ALPS ADVISORS INC | 11.93% | QII | 2026-06-30 | SEC → |
Source: SEC Schedule 13D/13G structured XML. 13D = active intent; 13G filers report passively (Rule 13d-1(b) QII / 13d-1(c) Passive / 13d-1(d) Exempt) and are not activists. Percent and delta are the group aggregate the filing reports. Structured 13D/G coverage begins December 2024 (SEC XML mandate).
| Biggest buyers | Δ shares | Δ value | |
|---|---|---|---|
| FMR LLC | +1,788,677 | $116M | ADD |
| Recurrent Investment Advisors LLC | +349,254 | $23M | ADD |
| INFRASTRUCTURE CAPITAL ADVISORS, LLC | +247,569 | $16M | ADD |
| BARCLAYS PLC | +212,450 | $14M | ADD |
| Allianz Asset Management GmbH | +210,515 | $14M | ADD |
| Biggest sellers | Δ shares | Δ value | |
|---|---|---|---|
| Blackstone Inc. | −1,540,236 | $100M | TRIM |
| MORGAN STANLEY | −527,594 | $34M | TRIM |
| GOLDMAN SACHS GROUP INC | −333,045 | $22M | TRIM |
| ALPS ADVISORS INC | −184,874 | $12M | — |
| CIBC Private Wealth Group LLC | −142,135 | $9M | CLOSE |
The 2025-Q4 register is as-filed in ITS OWN share basis; every count below was rebased into the 2026-Q1 basis (no split in between, factor 1). Dollar figures value the SHARE delta at one price — the 2026-03-31 close — rather than differencing two filings' own reported values, which would mix the quarter's price move into the trade figure.
13Fs disclose LONG US-listed positions only — shorts, most derivatives, bonds and non-US listings are invisible here, and a filer's quarter-over-quarter change is not necessarily a trade (index rebalances, in-kind transfers and entity successions all read as flow).
| Quarter | Holders | Shares held | % shares out | Value held |
|---|---|---|---|---|
| 2026-Q1 | 296 | 67,523,831 | — | $4.4B |
| 2025-Q4 | 275 | 66,520,311 | — | $3.5B |
| 2025-Q3 | 274 | 64,864,778 | — | $3.2B |
| 2025-Q2 | 281 | 63,887,367 | — | $3.4B |
| 2025-Q1 | 292 | 61,694,781 | — | $3.6B |
| 2024-Q4 | 270 | 60,664,533 | — | $3.1B |
| 2024-Q3 | 276 | 60,803,593 | — | $3.2B |
| 2024-Q2 | 275 | 60,311,854 | — | $3.4B |
| 2024-Q1 | 211 | 22,452,108 | — | $1.4B |
| 2023-Q4 | 211 | 25,476,865 | — | $1.5B |
| 2023-Q3 | 188 | 19,409,436 | — | $950M |
| 2023-Q2 | 189 | 17,933,849 | — | $781M |
| 2023-Q1 | 182 | 17,987,254 | — | $793M |
| 2022-Q4 | 179 | 17,565,594 | — | $758M |
| 2022-Q3 | 169 | 16,433,878 | — | $641M |
| 2022-Q2 | 168 | 17,036,832 | — | $635M |
| 2022-Q1 | 170 | 17,487,393 | — | $715M |
| 2021-Q4 | 161 | 17,508,435 | — | $715M |
| 2021-Q3 | 146 | 18,018,191 | — | $673M |
| 2021-Q2 | 146 | 18,957,151 | — | $715M |
| 2021-Q1 | 133 | 21,691,858 | — | $691M |
| 2020-Q4 | 133 | 23,554,413 | — | $678M |
| 2020-Q3 | 132 | 25,022,707 | — | $610M |
| 2020-Q2 | 135 | 25,935,661 | — | $592M |
| 2020-Q1 | 130 | 25,995,849 | — | $406M |
| 2019-Q4 | 151 | 28,030,329 | — | $858M |
| 2019-Q3 | 127 | 28,452,711 | — | $895M |
| 2019-Q2 | 133 | 28,877,198 | — | $903M |
| 2019-Q1 | 124 | 29,160,281 | — | $909M |
| 2018-Q4 | 126 | 29,775,166 | — | $810M |
| 2018-Q3 | 131 | 29,275,939 | — | $865M |
| 2018-Q2 | 130 | 29,167,364 | — | $728M |
| 2018-Q1 | 110 | 29,763,837 | — | $759M |
| 2017-Q4 | 120 | 30,035,659 | — | $853M |
| 2017-Q3 | 109 | 30,878,506 | — | $959M |
| 2017-Q2 | 120 | 30,818,218 | — | $948M |
| 2017-Q1 | 305 | 247,423,770 | — | $6.0B |
| 2016-Q4 | 327 | 254,384,897 | — | $6.2B |
| 2016-Q3 | 312 | 244,051,462 | — | $7.0B |
| 2016-Q2 | 314 | 225,583,756 | — | $6.5B |
| 2016-Q1 | 290 | 202,090,729 | — | $5.3B |
| 2015-Q4 | 301 | 213,508,350 | — | $5.9B |
| 2015-Q3 | 295 | 172,452,831 | — | $8.2B |
| 2015-Q2 | 310 | 157,372,919 | — | $6.1B |
| 2015-Q1 | 317 | 144,671,953 | — | $6.1B |
| 2014-Q4 | 315 | 127,023,174 | — | $5.4B |
| 2014-Q3 | 274 | 104,196,181 | — | $5.0B |
| 2014-Q2 | 254 | 95,341,910 | — | $4.5B |
| 2014-Q1 | 242 | 46,361,017 | — | $4.2B |
| 2013-Q4 | 242 | 46,489,705 | — | $3.5B |
| 2013-Q3 | 205 | 45,982,321 | — | $3.1B |
| 2013-Q2 | 194 | 43,505,291 | — | $2.8B |
| 2013-Q1 | 14 | 6,432,108 | — | $421M |
