Islander Capital Partners, L.P. — SPHERE ENTERTAINMENT CO SPHR: Quarterly 13F Position History
Islander Capital Partners, L.P. has reported SPHERE ENTERTAINMENT CO (SPHR) on 2 13F-HR filings in Pactolio's tracked window, first appearing in Q4 2025. As of Q1 2026, the position is sized at 220,028 shares ($25.8M market value, 10.18% of the equity book).
- 220,028Shares Held (Latest Filing)
- $25.8MReported Market Value (Latest Filing)
- 10.18%Portfolio Weight (% of 13F Equity Book)
- 0Quarter-over-Quarter Share Change
- +$4.9MQuarter-over-Quarter Value Change
- 220,028Peak Reported Shares (Historical)
Recent initiation: Islander Capital Partners, L.P. first reported SPHR on the Q4 2025 filing — fewer than three quarters of history are available.
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 2 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 220,028 | 0 | — | $25.8M | 10.18% | $117.40 |
| Q4 2025 | 220,028 | — | — | $20.9M | 9.43% | $95.08 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares — a quarter-end mark, not the manager's cost basis. See the full methodology document for the normalization rules.
When did Islander Capital Partners, L.P. first disclose a SPHR position in 13F-HR filings?
Islander Capital Partners, L.P. first reported SPHERE ENTERTAINMENT CO (SPHR) on its 13F-HR filing for the period ending 2025-12-31 (Q4 2025). The position has appeared on 2 reported quarters within Pactolio's tracked window.
What was Islander Capital Partners, L.P.'s most recent quarter-over-quarter share-count change in SPHR?
Islander Capital Partners, L.P. held the same 220,028 shares of SPHR between Q4 2025 and Q1 2026 — the reported share count was unchanged quarter-over-quarter.
Does the implied price-per-share represent Islander Capital Partners, L.P.'s cost basis in SPHR?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.