Foursixthree Capital LP
In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 15, 2026), Foursixthree Capital LP reported 11 stock positions worth $203.4 million. Its top holding was Vistance Networks (VISN) at 27.2% of the portfolio, followed by Telephone and Data Systems (TDS, 19.5%) and Hologic (HOLX, 11.5%). Compared with Q4 2025, it opened 3 new positions, sold out of 2, added to 3 and reduced 3. The biggest buy was a new position in Hologic (HOLX) and the biggest sale Echostar Class A (ECHO, shares −75%).
- Most Recent 13F
- Q2 2026
- Location
- NEW YORK, NY
- CIK
- 0001897652
- Portfolio Value
- $203.4M (Q1 2026)
- SEC Filing
- 0000905148-26-002381 ↗ filed May 15, 2026
Holdings Value
Holdings 11 stocks · $203.4M
| VISN Vistance Networks Inc. | 27.18% | 3,037,598 | $55.3M | Add +53.2% |
| TDS Telephone and Data Systems | 19.48% | 940,927 | $39.6M | Reduce -22.2% |
| HOLX Hologic Inc. | 11.51% | 309,800 | $23.4M | New |
| TDAY USA Today Co. Inc. | 8.00% | 2,306,441 | $16.3M | Add +1.5% |
| ECHO Echostar Corp. Class A | 7.94% | 138,001 | $16.2M | Reduce -75.1% |
| CAR Avis Budget Group Inc. | 6.45% | 90,000 | $13.1M | New |
| METC Ramaco Resources Inc. Class A | 6.17% | 811,760 | $12.5M | Add +154.3% |
| PPLI People Inc. filed as IAC INC | 5.41% | 274,650 | $11.0M | New |
| IHRT Iheartmedia Inc. Class A | 3.72% | 2,594,105 | $7.6M | No change |
| STHO Star Holdings filed as STAR HLDGS | 3.29% | 883,897 | $6.7M | No change |
| OPTU Optimum Communications Inc. Class A | 0.84% | 1,310,063 | $1.7M | Reduce -71.8% |
Options reported separately and not counted above: HOLX puts ($23.4M), DOW puts ($11.2M), BUR puts ($988K).
Other holdings (4): bonds, preferreds, convertibles and warrants · $29.4M (not counted above)
| Security | Class | Shares / Principal | Value | Change |
|---|---|---|---|---|
| CAPITAL SOUTHWEST CORP (CSWC 5.125 11/15/29) | NOTE 5.125%11/1 · principal | 28,833,000 | $29.4M | Add +34.1% |
| MDAIW Spectral AI -CW27 | *W EXP 09/11/202 | 11,666 | $7K | No change |
| BAERW Wildfire New Pubco Inc.-27 | *W EXP 01/24/202 | 10,000 | $4K | No change |
| SDAWW Suncar Technology Group -28 | *W EXP 05/17/202 | 10,000 | $3K | No change |
Total filed on the 13F, all lines: $232.8M.
Portfolio Sells Q4 2025 → Q1 2026
Portfolio Buys Q4 2025 → Q1 2026
Options Activity Q4 2025 → Q1 2026
| HOLX Hologic Inc. | put | New | 309,800 | $23.4M |
| VISN Vistance Networks Inc. | call | Sold out | 1,050,000 | $19.0Mbefore exit |
| DOW Dow Inc. | put | New | 268,000 | $11.2M |
| BUR Burford Capital Ltd. | put | New | 218,500 | $988K |
| CODI Compass Diversified Holdings | put | Sold out | 182,500 | $876Kbefore exit |
Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.
Notes & Other Activity Q4 2025 → Q1 2026
| CAPITAL SOUTHWEST CORP (CSWC 5.125 11/15/29) | NOTE 5.125%11/1 · principal | Add +34.1% | 28,833,000 | $29.4M |
| RAMACO RESOURCES INC (METC 0 11/01/31) | NOTE 11/0 · principal | Sold out | 27,000,000 | $22.8Mbefore exit |
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 |