RUSH ISLAND MANAGEMENT, LP: SBA COMMUNICATIONS CORP (SBAC): Quarterly 13F Position History
As of Q1 2026, RUSH ISLAND MANAGEMENT, LP reported 978,390 shares of SBA COMMUNICATIONS CORP (SBAC), worth $168.4M and representing 11.3% of its 13F equity book. Quarter-over-quarter share count change: 199,205 (-16.9%) . The position first appeared in Q3 2024 and has been disclosed across 7 13F-HR filings in Pactolio's tracked window.
- 978,390Shares Held (Latest Filing)
- $168.4MReported Market Value (Latest Filing)
- 11.3%Portfolio Weight (% of 13F Equity Book)
- 199,205Quarter-over-Quarter Share Change
- -$59.4MQuarter-over-Quarter Value Change
- 1,177,595Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 7 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 978,390 | 199,205 | -16.9% | $168.4M | 11.3% | $172.1 |
| Q4 2025 | 1,177,595 | +234,072 | +24.8% | $227.8M | 14.2% | $193.4 |
| Q3 2025 | 943,523 | +582,862 | +161.6% | $182.4M | 12.5% | $193.3 |
| Q2 2025 | 360,661 | 187,322 | -34.2% | $84.7M | 5.5% | $234.8 |
| Q1 2025 | 547,983 | +547,983 | — | $120.6M | 7.7% | $220.0 |
| Q4 2024 | 0 | 199,009 | -100.0% | $0 | 0.0% | — |
| Q3 2024 | 199,009 | — | — | $47.9M | 3.7% | $240.7 |
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 RUSH ISLAND MANAGEMENT, LP first disclose a SBAC position in 13F-HR filings?
RUSH ISLAND MANAGEMENT, LP first reported SBA COMMUNICATIONS CORP (SBAC) on its 13F-HR filing for the period ending 2024-09-30 (Q3 2024). The position has appeared on 7 reported quarters within Pactolio's tracked window.
What was RUSH ISLAND MANAGEMENT, LP's most recent quarter-over-quarter share-count change in SBAC?
Between Q4 2025 and Q1 2026, RUSH ISLAND MANAGEMENT, LP reduced its SBAC position by 199,205 shares (-16.9%), leaving 978,390 shares at a market value of $168.4M.
Does the implied price-per-share represent RUSH ISLAND MANAGEMENT, LP's cost basis in SBAC?
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.