SUN CMNTYS INC SUI
COM · REIT · CUSIP 866674104 · ISIN US8666741041
Real estate investment trust for RVs
- SectorReal estate
- IndustryReal Estate Investment Trusts
- HeadquartersSouthfield, MI
- Founded1975
- Websitesuncommunities.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($24.4m this quarter). Holder counts are more reliable. Shares outstanding: 121.8m as of 2026-07-21, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $119.96. Options: 6 managers hold calls ($18.9m notional), 7 hold puts ($24.0m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 508 |
| Q4 2022 | 509 |
| Q1 2023 | 506 |
| Q2 2023 | 504 |
| Q3 2023 | 500 |
| Q4 2023 | 529 |
| Q1 2024 | 501 |
| Q2 2024 | 508 |
| Q3 2024 | 518 |
| Q4 2024 | 477 |
| Q1 2025 | 497 |
| Q2 2025 | 470 |
| Q3 2025 | 506 |
| Q4 2025 | 540 |
| Q1 2026 | 516 |
| Q2 2026 | 532 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 239 | 256 |
| Q4 2024 | 200 | 282 |
| Q1 2025 | 245 | 221 |
| Q2 2025 | 223 | 234 |
| Q3 2025 | 238 | 215 |
| Q4 2025 | 231 | 248 |
| Q1 2026 | 235 | 274 |
| Q2 2026 | 250 | 262 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $11.2m | $19.6m | 1.74 |
| Q4 2025 | $16.4m | $7.9m | 0.48 |
| Q1 2026 | $25.8m | $24.1m | 0.94 |
| Q2 2026 | $18.9m | $24.0m | 1.27 |
Biggest buyers
| COHEN & STEERS, INC. | Added | +1.3m |
| MILLENNIUM MANAGEMENT LLC | Added | +1.2m |
| BlackRock, Inc. | Added | +1.1m |
| CITADEL ADVISORS LLC | Added | +885.8k |
| JANE STREET GROUP, LLC | Added | +794.7k |
| Alyeska Investment Group, L.P. | New | +557.3k |
| Balyasny Asset Management L.P. | Added | +444.2k |
| Hudson Bay Capital Management LP | Added | +310.0k |
| CENTERSQUARE INVESTMENT MANAGEMENT LLC | Added | +296.2k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | New | +285.7k |
Biggest sellers
| Dodge & Cox | Reduced | -4.8m |
| Nuveen, LLC | Reduced | -467.5k |
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | -452.8k |
| FMR LLC | Reduced | -418.3k |
| DEUTSCHE BANK AG\ | Reduced | -331.2k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | -265.0k |
| AMERICAN CENTURY COMPANIES INC | Reduced | -262.4k |
| MARSHALL WACE, LLP | Sold out | -235.7k |
| STATE STREET CORP | Reduced | -204.4k |
| Vision Capital Corp | Reduced | -195.6k |
Biggest calls
| CITADEL ADVISORS LLC | Added | $8.9m74.5k shares |
| JANE STREET GROUP, LLC | Reduced | $4.1m34.3k shares |
| IMC-Chicago, LLC | Added | $2.2m18.5k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $1.9m15.5k shares |
| GROUP ONE TRADING LLC | Added | $1.6m13.5k shares |
| Tidal Investments LLC | Added | $167.9k1.4k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $9.4m78.3k shares |
| CITADEL ADVISORS LLC | Added | $8.3m69.6k shares |
| IMC-Chicago, LLC | New | $2.1m17.8k shares |
| JANE STREET GROUP, LLC | Added | $1.7m14.0k shares |
| SIMPLEX TRADING, LLC | Added | $995.3k8.3k shares |
| GROUP ONE TRADING LLC | New | $947.3k7.9k shares |
| UBS Group AG | New | $479.6k4.0k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution +4.2 pts · filed 2026-09-04 | 13.4% |
| COHEN & STEERS, INC. 13G · institution +1.7 pts · filed 2026-05-07 | 10.6% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 8.3% |
| DODGE & COX 13G · institution -3.4 pts · filed 2026-08-07 | 7.7% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-30 | 5.3% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC), PRICE T ROWE ASSOCIATES INC /MD/ (4.5%, 2026-02-17), NORGES BANK (4.9%, 2026-01-28)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 1 | $432.4k | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 2 | $19.9m | — |
| Q1 2026 | 0 | — | 1 | $1.9m | — |
| Q2 2026 | 0 | — | 2 | $6.0m | — |
| Q3 2026 | 0 | — | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-06-24 | SHIFFMAN GARY A Director | Sold | $3.0m25.0k shares |
| 2026-05-26 | Castro-Caratini Fernando EVP, CFO, Sec. & Treas. | Sold | $3.0m23.8k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.02% of their portfolio | 13.8m $1.6bn | Added +1.1m |
| COHEN & STEERS, INC. 2.54% of their portfolio | 13.4m $1.6bn | Added +1.3m |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.06% of their portfolio | 10.3m $1.2bn | Added +94.9k |
| Dodge & Cox 0.60% of their portfolio | 9.5m $1.1bn | Reduced -4.8m |
| VANGUARD CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 5.5m $658.8m | Added +41.4k |
| NORGES BANK 0.07% of their portfolio | 5.4m $652.2m | Not comparable |
| WELLINGTON MANAGEMENT GROUP LLP 0.11% of their portfolio | 5.4m $646.3m | Reduced -452.8k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.06% of their portfolio | 5.4m $646.2m | Reduced -140.4k |
| STATE STREET CORP 0.02% of their portfolio | 5.0m $606.1m | Reduced -204.4k |
| FMR LLC 0.02% of their portfolio | 4.6m $547.4m | Reduced -418.3k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 2.3m $279.8m | Reduced -45.4k |
| Daiwa Securities Group Inc. 0.49% of their portfolio | 1.8m $217.1m | Added +42.3k |
| DIMENSIONAL FUND ADVISORS LP 0.04% of their portfolio | 1.8m $215.6m | Reduced -14.0k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.03% of their portfolio | 1.6m $197.6m | Added +122.1k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.03% of their portfolio | 1.5m $184.2m | Added +31.5k |
| CITADEL ADVISORS LLC 0.10% of their portfolio | 1.5m $175.8m | Added +885.8k |
| MILLENNIUM MANAGEMENT LLC 0.12% of their portfolio | 1.4m $170.5m | Added +1.2m |
| CANADA PENSION PLAN INVESTMENT BOARD 0.09% of their portfolio | 1.3m $156.8m | Added +277.0k |
| Legal & General Group Plc 0.03% of their portfolio | 1.0m $122.7m | Reduced -52.8k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 989.7k $118.7m | Reduced -48.6k |
| MORGAN STANLEY 0.01% of their portfolio | 957.3k $114.8m | Added +150.6k |
| Russell Investments Group, Ltd. 0.10% of their portfolio | 927.0k $111.2m | Reduced -47.9k |
| DEUTSCHE BANK AG\ 0.03% of their portfolio | 904.3k $108.4m | Reduced -331.2k |
| Balyasny Asset Management L.P. 0.19% of their portfolio | 866.1k $103.9m | Added +444.2k |
| JANE STREET GROUP, LLC 0.07% of their portfolio | 859.7k $103.1m | Added +794.7k |
| JPMORGAN CHASE & CO 0.01% of their portfolio | 807.2k $97.9m | Reduced -86.7k |
| CBRE INVESTMENT MANAGEMENT LISTED REAL ASSETS LLC 1.28% of their portfolio | 767.9k $92.1m | Added +231.1k |
| VANGUARD FIDUCIARY TRUST CO 0.02% of their portfolio | 738.5k $88.5m | Added +8.2k |
| SEI INVESTMENTS CO 0.08% of their portfolio | 736.3k $88.3m | Reduced -35.7k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 689.4k $82.7m | Added +6.9k |
| Nuveen, LLC 0.02% of their portfolio | 656.8k $78.8m | Reduced -467.5k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 623.9k $74.8m | Added +55.4k |
| HSBC HOLDINGS PLC 0.03% of their portfolio | 573.6k $68.7m | Reduced -27.9k |
| Alyeska Investment Group, L.P. 0.17% of their portfolio | 557.3k $66.8m | New |
| Hudson Bay Capital Management LP 0.26% of their portfolio | 463.9k $55.6m | Added +310.0k |
| Sumitomo Mitsui Trust Group, Inc. 0.03% of their portfolio | 456.7k $54.8m | Added +21.4k |
| FIRST TRUST ADVISORS LP 0.03% of their portfolio | 432.7k $51.9m | Added +150.5k |
| Qube Research & Technologies Ltd 0.05% of their portfolio | 391.5k $46.9m | Reduced -36.5k |
| GW&K Investment Management, LLC 0.35% of their portfolio | 371.6k $44.6m | Reduced -21.3k |
| Swiss National Bank 0.02% of their portfolio | 347.6k $41.7m | Reduced -15.3k |
| CENTERSQUARE INVESTMENT MANAGEMENT LLC 0.36% of their portfolio | 347.5k $41.7m | Added +296.2k |
| Land & Buildings Investment Management, LLC 6.37% of their portfolio | 310.2k $37.2m | Added +34.5k |
| Amundi 0.01% of their portfolio | 308.9k $37.0m | Reduced -3.2k |
| APG Asset Management US Inc. 0.26% of their portfolio | 307.0k $37.1m | Unchanged |
| Invesco Ltd. 0.00% of their portfolio | 303.7k $36.4m | Added +42.9k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.02% of their portfolio | 285.7k $34.3m | New |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.05% of their portfolio | 256.8k $30.8m | Reduced -3.1k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 256.3k $30.7m | Added +64.7k |
| UBS Group AG 0.00% of their portfolio | 252.0k $30.2m | Reduced -45.9k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.02% of their portfolio | 251.7k $30.2m | Added +30.0k |
| FRANKLIN RESOURCES INC 0.01% of their portfolio | 251.5k $30.2m | Reduced -10.6k |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 247.9k $29.7m | Added +71.7k |
| PRUDENTIAL FINANCIAL INC 0.03% of their portfolio | 245.2k $29.4m | Reduced -19.0k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.03% of their portfolio | 244.4k $29.3m | Reduced -265.0k |
| Mitsubishi UFJ Asset Management Co., Ltd. 0.02% of their portfolio | 240.8k $28.9m | Added +15.0k |
| CRAMER ROSENTHAL MCGLYNN LLC 1.46% of their portfolio | 239.0k $28.7m | Reduced -29.5k |
| CANADA LIFE ASSURANCE Co 0.05% of their portfolio | 236.2k $28.3m | Added +5.3k |
| WHITTIER TRUST CO 0.28% of their portfolio | 232.8k $28.4m | Added +5.6k |
| NOMURA ASSET MANAGEMENT CO LTD 0.06% of their portfolio | 230.5k $27.6m | Added +11.2k |
| Engineers Gate Manager LP 0.35% of their portfolio | 227.3k $27.3m | Added +223.1k |
| Arbejdsmarkedets Tillaegspension 0.59% of their portfolio | 227.0k $27.2m | Added +30.2k |
| Asset Management One Co., Ltd. 0.07% of their portfolio | 226.6k $27.2m | Added +5.3k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.02% of their portfolio | 212.2k $25.4m | Added +27.4k |
| California Public Employees Retirement System 0.01% of their portfolio | 206.9k $24.8m | Reduced -50.3k |
| Woodline Partners LP 0.07% of their portfolio | 178.7k $21.4m | Added +49.4k |
| PRIVATE MANAGEMENT GROUP INC 0.56% of their portfolio | 177.9k $21.3m | Reduced -2.6k |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.06% of their portfolio | 177.5k $21.3m | Added +606 |
| CITIGROUP INC 0.01% of their portfolio | 174.7k $20.9m | Reduced -23.5k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 172.0k $20.6m | Added +74.7k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 168.0k $20.1m | Added +22.9k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 167.9k $20.1m | Added +49.5k |
| Jain Global LLC 0.24% of their portfolio | 166.6k $20.0m | Added +139.6k |
| State of New Jersey Common Pension Fund D 0.07% of their portfolio | 162.4k $19.5m | Reduced -2.6k |
| Heitman Real Estate Securities LLC 1.24% of their portfolio | 160.9k $19.3m | Reduced -11.4k |
| Quantinno Capital Management LP 0.02% of their portfolio | 159.0k $19.1m | Reduced -33.3k |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.02% of their portfolio | 153.3k $18.4m | Reduced -5.9k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 148.8k $17.8m | Reduced -3.7k |
| Vanguard Investments Australia, Ltd. 0.04% of their portfolio | 143.8k $17.2m | Added +78 |
| MACQUARIE GROUP LTD 0.07% of their portfolio | 140.9k $16.9m | Added +36.1k |
| Aberdeen Group plc 0.02% of their portfolio | 140.3k $16.8m | Reduced -50.9k |
| Vision Capital Corp 7.48% of their portfolio | 135.2k $16.2m | Reduced -195.6k |
| 1832 Asset Management L.P. 0.02% of their portfolio | 132.4k $15.9m | Added +27.0k |
| JACOBS LEVY EQUITY MANAGEMENT, INC 0.06% of their portfolio | 129.8k $15.6m | Reduced -56.8k |
| SG Americas Securities, LLC 0.01% of their portfolio | 129.3k $15.5m | Reduced -68.9k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 129.1k $15.5m | Added +31.8k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 128.4k $15.4m | Reduced -3.2k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 126.5k $15.2m | Reduced -32.1k |
| BARCLAYS PLC 0.00% of their portfolio | 116.3k $13.9m | Reduced -17.2k |
| DekaBank Deutsche Girozentrale 0.02% of their portfolio | 110.4k $13.9m | Unchanged |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.02% of their portfolio | 110.1k $13.2m | Reduced -3.1k |
| JONES FINANCIAL COMPANIES LLLP 0.01% of their portfolio | 109.3k $13.3m | Added +94.8k |
| AVIVA PLC 0.02% of their portfolio | 102.9k $12.3m | Reduced -1.9k |
| Clearbridge Investments, LLC 0.01% of their portfolio | 102.3k $12.3m | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) 0.02% of their portfolio | 99.9k $12.0m | Reduced -8.2k |
| NATIXIS ADVISORS, LLC 0.01% of their portfolio | 99.1k $11.9m | Added +88.3k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 97.7k $11.6m | Reduced -16.6k |
| ArrowMark Colorado Holdings LLC 0.49% of their portfolio | 97.3k $11.7m | Unchanged |
| LASALLE INVESTMENT MANAGEMENT SECURITIES LLC 0.40% of their portfolio | 93.7k $11.2m | Added +40.5k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.02% of their portfolio | 93.6k $11.2m | Added +15.1k |
| CHILTON CAPITAL MANAGEMENT LLC 0.36% of their portfolio | 92.9k $11.2m | Reduced -7.3k |