Foursixthree Capital LP
In its 13F for Q2 2025 (holdings as of June 30, 2025, filed August 14, 2025), Foursixthree Capital LP reported 10 stock positions worth $155.3 million. Its top holding was Telephone and Data Systems (TDS) at 37.2% of the portfolio, followed by Vistance Networks (VISN, 21.9%) and Ciena (CIEN, 15.0%). Compared with Q1 2025, it opened 1 new position, sold out of 2, added to 4 and reduced 3. The biggest buy was a new position in Ciena (CIEN) and the biggest sale an exit from Talen Energy (TLN).
- Most Recent 13F
- Q2 2026
- Location
- NEW YORK, NY
- CIK
- 0001897652
- Portfolio Value
- $155.3M (Q2 2025)
- SEC Filing
- 0000905148-25-002937 ↗ filed Aug 14, 2025
Holdings Value
Holdings 10 stocks · $155.3M
| TDS Telephone and Data Systems | 37.20% | 1,623,799 | $57.8M | Add +13.1% |
| VISN Vistance Networks Inc. filed as COMMSCOPE HLDG CO INC | 21.89% | 4,104,879 | $34.0M | Reduce -42.6% |
| CIEN Ciena Corp. | 15.04% | 287,247 | $23.4M | New |
| ROIV Roivant Sciences Ltd. | 6.53% | 900,000 | $10.1M | Add +5.9% |
| ABUS Arbutus Biopharma Corp. | 5.09% | 2,557,367 | $7.9M | Add +4.4% |
| OPTU Optimum Communications Inc. Class A filed as ALTICE USA INC | 4.93% | 3,577,458 | $7.7M | Add +135.7% |
| STHO Star Holdings filed as STAR HLDGS | 4.45% | 883,897 | $6.9M | No change |
| IHRT Iheartmedia Inc. Class A | 2.14% | 1,891,770 | $3.3M | No change |
| LITE Lumentum Holdings Inc. | 1.46% | 23,779 | $2.3M | Reduce -86.2% |
| HOUS Anywhere Real Estate Inc. | 1.27% | 545,115 | $2.0M | Reduce -16.3% |
Options reported separately and not counted above: TDS puts ($54.3M), VISN calls ($9.3M), ABR calls ($4.4M), KSS puts ($848K).
Other holdings (5): bonds, preferreds, convertibles and warrants · $62.6M (not counted above)
| Security | Class | Shares / Principal | Value | Change |
|---|---|---|---|---|
| LUMENTUM HOLDINGS INC (LITE 1.5 12/15/29) | NOTE 1.500%12/1 · principal | 27,000,000 | $41.4M | No change |
| CAPITAL SOUTHWEST CORP (CSWC 5.125 11/15/29) | NOTE 5.125%11/1 · principal | 21,500,000 | $21.2M | No change |
| MDAIW Spectral AI -CW27 | *W EXP 09/11/202 | 11,666 | $8K | No change |
| BAERW Wildfire New Pubco Inc.-27 | *W EXP 01/24/202 | 10,000 | $775 | New |
| SDAWW Suncar Technology Group -28 | *W EXP 05/17/202 | 10,000 | $700 | No change |
Total filed on the 13F, all lines: $217.9M.
Portfolio Sells Q1 2025 → Q2 2025
Portfolio Buys Q1 2025 → Q2 2025
Options Activity Q1 2025 → Q2 2025
| IWM iShares Russell 2000 ETF | put | Sold out | 400,000 | $79.8Mbefore exit |
| TDS Telephone and Data Systems | put | Add +14.3% | 1,525,800 | $54.3M |
| JWN Nordstrom Inc. | call | Sold out | 740,500 | $18.1Mbefore exit |
| VISN Vistance Networks Inc. | call | New | 1,122,000 | $9.3M |
| ABR Arbor Realty Trust Inc. | call | New | 412,500 | $4.4M |
| MPT Medical Properties Trust Inc. | put | Sold out | 44,000 | $265Kbefore exit |
Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.
Notes & Other Activity Q1 2025 → Q2 2025
| BAERW Wildfire New Pubco Inc.-27 | *W EXP 01/24/202 | New | 10,000 | $775 |
Bonds, preferreds, convertibles and warrants; not part of the stock holdings or percentages above.
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 13 | $370.4M | DPC, PPLI, TDS, ECHO, VSAT |
| Q1 2026 | 11 | $203.4M | VISN, TDS, HOLX, TDAY, ECHO |
| Q4 2025 | 10 | $193.3M | ECHO, TDS, VISN, TDAY, IHRT |
| Q3 2025 | 10 | $252.5M | TDS, ECHO, VISN, LITE, CIEN |
| Q2 2025 | 10 | $155.3M | TDS, VISN, CIEN, ROIV, ABUS |
| Q1 2025 | 11 | $159.4M | TDS, VISN, TLN, LITE, ROIV |
| Q4 2024 | 9 | $114.7M | TDS, VISN, EQT, STHO, INDV |