SEC Form 4 · Updated Daily
YSI
Insider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| Amsdell & Amsdell | Reporting Owner | 3,409,937 | 2008-12-30 | — |
| Amsdell Holdings I Inc. | Reporting Owner | 3,409,937 | 2008-12-30 | — |
| Amsdell Real Estate Trust dated 10/3/89 | Reporting Owner | 3,409,937 | 2008-12-30 | — |
| AMSDELL ROBERT J | Director · Officer | 2,326,807 | 2012-02-01 | S |
| AMSDELL BARRY L | Director | 2,326,807 | 2012-02-01 | S |
| MARR CHRISTOPHER P | Director | 718,537 | 2026-06-10 | M |
| MARTIN TIMOTHY M | Officer | 384,975 | 2026-01-01 | A |
| JERNIGAN DEAN | Director | 304,218 | 2013-11-29 | M |
| Foster Jeffrey P | Officer | 228,205 | 2026-03-03 | M |
| AMSDELL TODD C | 10%+ Owner · Officer | 200,000 | 2012-02-01 | S |
| DIEFENDERFER WILLIAM M III | Director | 132,046 | 2018-04-16 | A |
| Perry Jonathan L | Officer | 126,283 | 2018-05-08 | M |
| OSGOOD STEVEN G | Officer | 98,417 | 2006-03-10 | M |
| Keaton Joel D | Officer | 80,836 | 2025-01-31 | F |
| REMONDI JOHN F | Director | 77,969 | 2026-05-19 | A |
| Bussani Piero | Officer | 68,966 | 2026-05-19 | A |
| DANNEMILLER JOHN C | Director | 59,729 | 2010-04-22 | A |
| ROGATZ JEFFREY F | Director | 58,114 | 2026-05-19 | A |
| LARUE DAVID J | Director | 56,543 | 2013-01-25 | A |
| HALLER HAROLD S | Director | 53,233 | 2011-04-22 | A |
| KELER MARIANNE M | Director | 49,744 | 2021-05-11 | A |
| FAIN JOHN W | Director | 44,834 | 2025-05-20 | A |
| RATNERSALZBERG DEBORAH | Director | 37,203 | 2025-05-20 | A |
| Dowling Dororthy | Director | 34,598 | 2026-05-19 | A |
| HURWITZ DANIEL B | Director | 28,077 | 2011-01-24 | A |
| COMMES THOMAS A | Director | 27,560 | 2008-05-06 | D |
| TOWSLEY TEDD D | Officer | 24,375 | 2006-03-22 | M |
| DeNarie Matthew D | Officer | 24,344 | 2026-01-01 | A |
| BLATZ ROBERT G | Officer | 23,891 | 2011-01-24 | A |
| Schulte Jennifer | Officer | 20,584 | 2026-01-01 | A |
| Weigand Kathleen A | Officer | 16,822 | 2008-05-12 | M |
| ANDREWS CHARLES ELLIOTT | Director | 15,831 | 2009-01-23 | A |
| Lynch Jair K | Director | 14,465 | 2026-05-19 | A |
| Chin Jit Kee | Director | 13,682 | 2026-05-19 | A |
| Nichols Stephen R | Officer | 9,523 | 2008-05-13 | I |
| Weber Jennie | Director | 4,044 | 2026-05-19 | A |
| Connor Martin P. | Director | 4,044 | 2026-05-19 | A |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-10-15 | MARR CHRISTOPHER P | Grant / award (derivative) | 83 | $38.56 | 6,121 |
| 2026-10-15 | MARTIN TIMOTHY M | Grant / award (derivative) | 320 | $38.56 | 23,584 |
| 2026-10-15 | Schulte Jennifer | Grant / award (derivative) | 13.769 | $38.56 | 1,015.56 |
| 2026-07-15 | Schulte Jennifer | Grant / award (derivative) | 12.953 | $40.46 | 1,001.791 |
| 2026-07-15 | MARR CHRISTOPHER P | Grant / award (derivative) | 78 | $40.46 | 6,038 |
| 2026-07-15 | MARTIN TIMOTHY M | Grant / award (derivative) | 301 | $40.46 | 23,264 |
| 2026-06-10 | MARR CHRISTOPHER P | Option exercise (derivative) | 108,932 | $0.00 | 0 |
| 2026-06-10 | MARR CHRISTOPHER P | Open-market sale | 108,932 | $42.24 | 609,605 |
| 2026-06-10 | MARR CHRISTOPHER P | Option exercise | 108,932 | $26.30 | 718,537 |
| 2026-05-19 | Bussani Piero | Grant / award | 4,044 | $0.00 | 68,966 |
| 2026-05-19 | Chin Jit Kee | Grant / award | 4,044 | $0.00 | 13,682 |
| 2026-05-19 | Connor Martin P. | Grant / award | 4,044 | $0.00 | 4,044 |
| 2026-05-19 | Dowling Dororthy | Grant / award | 4,044 | $0.00 | 34,598 |
| 2026-05-19 | Lynch Jair K | Grant / award | 4,044 | $0.00 | 14,465 |
| 2026-05-19 | REMONDI JOHN F | Grant / award | 4,044 | $0.00 | 77,969 |
| 2026-05-19 | Weber Jennie | Grant / award | 4,044 | $0.00 | 4,044 |
| 2026-05-19 | ROGATZ JEFFREY F | Grant / award | 4,044 | $0.00 | 58,114 |
| 2026-04-15 | MARR CHRISTOPHER P | Grant / award (derivative) | 80 | $38.95 | 5,960 |
| 2026-04-15 | MARTIN TIMOTHY M | Grant / award (derivative) | 308 | $38.95 | 22,963 |
| 2026-04-15 | Schulte Jennifer | Grant / award (derivative) | 13.275 | $38.95 | 988.838 |
| 2026-03-03 | Foster Jeffrey P | Option exercise (derivative) | 23,148 | $0.00 | 0 |
| 2026-03-03 | Foster Jeffrey P | Open-market sale | 23,148 | $41.02 | 205,057 |
| 2026-03-03 | Foster Jeffrey P | Option exercise | 23,148 | $26.30 | 228,205 |
| 2026-01-31 | MARR CHRISTOPHER P | Tax withholding | 39,369 | $37.53 | 609,605 |
| 2026-01-16 | Schulte Jennifer | Grant / award (derivative) | 12.881 | $39.61 | 975.563 |
| 2026-01-16 | MARTIN TIMOTHY M | Grant / award (derivative) | 299 | $39.61 | 22,655 |
| 2026-01-16 | MARR CHRISTOPHER P | Grant / award (derivative) | 78 | $39.61 | 5,880 |
| 2026-01-01 | Schulte Jennifer | Grant / award (derivative) | 21,689 | $0.00 | 21,689 |
| 2026-01-01 | Schulte Jennifer | Tax withholding | 1,852 | $36.05 | 18,732 |
| 2026-01-01 | Schulte Jennifer | Grant / award | 1,839 | $36.05 | 20,584 |
| 2026-01-01 | Schulte Jennifer | Grant / award | 4,392 | $0.00 | 18,745 |
| 2026-01-01 | MARTIN TIMOTHY M | Grant / award (derivative) | 87,900 | $0.00 | 87,900 |
| 2026-01-01 | MARTIN TIMOTHY M | Grant / award | 8,381 | $36.05 | 384,975 |
| 2026-01-01 | MARTIN TIMOTHY M | Grant / award | 17,799 | $0.00 | 376,594 |
| 2026-01-01 | MARR CHRISTOPHER P | Grant / award (derivative) | 252,055 | $0.00 | 252,055 |
| 2026-01-01 | MARR CHRISTOPHER P | Tax withholding | 5,425 | $36.05 | 648,974 |
| 2026-01-01 | MARR CHRISTOPHER P | Grant / award | 17,013 | $0.00 | 654,399 |
| 2026-01-01 | MARR CHRISTOPHER P | Grant / award | 22,168 | $36.05 | 637,386 |
| 2026-01-01 | MARR CHRISTOPHER P | Grant / award | 34,027 | $0.00 | 615,218 |
| 2026-01-01 | Foster Jeffrey P | Grant / award (derivative) | 42,237 | $0.00 | 42,237 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.