Burren Capital Advisors Ltd: 13F holdings, Q3 2025
Hedge fund · SEC EDGAR filings (CIK 1542952) · Explore on the interactive board
Burren Capital Advisors Ltd disclosed 16 US equity positions worth $33.0m in its Q3 2025 13F filing (holdings as of September 30, 2025, filed November 12, 2025). Its largest position is VRNA at 20.4% of the reported book, followed by VTY, TXNM. The top ten holdings are 87.7% of the book, and the portfolio behaves like about 9 equal-weight positions. Versus the prior filing it opened 12 new positions, added to 0, reduced 2 and exited 11. Note: this manager's most recent filing is 3 quarters behind the newest quarter on file, so these figures are history rather than current positioning.
What does Burren Capital Advisors Ltd own? Top holdings as of September 30, 2025
Change is measured in shares against the previous filing (Q2 2025), so price moves do not read as decisions. This quarter: 12 new, 0 added, 2 reduced, 11 exited.
| # | Stock | Sector | Weight | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|---|
| 1 | VRNA VERONA PHARMA PLC | 20.4% | $6.7m | 63,198 | – | new | |
| 2 | VTY VERINT SYS INC | 12.9% | $4.3m | 210,660 | – | new | |
| 3 | TXNM TXNM ENERGY INC | Utilities | 10.8% | $3.6m | 63,198 | – | new |
| 4 | AIR LEASE CORP | 10.5% | $3.5m | 54,421 | – | new | |
| 5 | FYBR FRONTIER COMMUNICATIONS PARE | 10.0% | $3.3m | 88,729 | 0% | held | |
| 6 | KEL KELLANOVA | 6.5% | $2.2m | 54,185 | -36% | reduced | |
| 7 | ZIMV ZIMVIE INC | 6.0% | $2.0m | 105,330 | – | new | |
| 8 | AVDX AVIDXCHANGE HOLDINGS INC | 4.2% | $1.4m | 139,842 | 0% | held | |
| 9 | SYU1 SYNOVUS FINL CORP | 3.1% | $1.0m | 21,066 | – | new | |
| 10 | SU6 SURMODICS INC | 3.0% | $1.0m | 33,664 | -6% | reduced | |
| 11 | ODP1 THE ODP CORP | 2.9% | $973.5k | 34,955 | – | new | |
| 12 | 2655957D PREMIER INC | 2.9% | $971.7k | 34,955 | – | new | |
| 13 | DAY DAYFORCE INC | 2.2% | $725.6k | 10,533 | – | new | |
| 14 | STAA STAAR SURGICAL CO | Healthcare | 2.0% | $660.4k | 24,577 | – | new |
| 15 | CORZ CORE SCIENTIFIC INC NEW | Technology | 1.3% | $440.9k | 24,577 | – | new |
| 16 | CROSS CTRY HEALTHCARE INC | 0.9% | $297.8k | 20,973 | – | new |
What did Burren Capital Advisors Ltd sell? Positions exited since the previous filing
| Stock | Prior weight | Prior value |
|---|---|---|
| SKAA SKECHERS U S A INC | 20.5% | $4.4m |
| WBA WALGREENS BOOTS ALLIANCE INC | 13.0% | $2.8m |
| HES HESS CORP | 11.2% | $2.4m |
| NVEEUSD NV5 GLOBAL INC | 8.8% | $1.9m |
| JNP JUNIPER NETWORKS INC | 8.4% | $1.8m |
| BASE COUCHBASE INC | 8.3% | $1.8m |
| DNB DUN & BRADSTREET HLDGS INC | 6.5% | $1.4m |
| INFA1EUR INFORMATICA INC | 6.5% | $1.4m |
| AMED AMEDISYS INC | 6.4% | $1.4m |
| APY1EUR CHAMPIONX CORPORATION | 5.2% | $1.1m |
| TG7 TRIUMPH GROUP INC NEW | 5.1% | $1.1m |
Discovery track record: where was Burren Capital Advisors Ltd early?
Stocks where Burren Capital Advisors Ltd was among the first 10% (or first 3) of the tracked managers observed opening a meaningful position, in stocks at least 20 managers were observed opening. Stock changes describe the stock, not the manager's return.
| Stock | First reported | Entry rank | Initial weight | Peak weight | Quarters held | Status | Stock since |
|---|---|---|---|---|---|---|---|
| SU6 SURMODICS INC | Q1 2025 | 1 of 27 | 3.9% | 3.9% | 3 | Held at last filing, Q3 2025 | -2% to Q3 2025 |
Sector mix
| Sector | Weight |
|---|---|
| Utilities | 10.8% |
| Healthcare | 2.0% |
| Technology | 1.3% |
Sectors cover positions whose ticker resolved to a sector; the remainder is unclassified, not cash.
Filing history
How concentrated is Burren Capital Advisors Ltd's portfolio?
Across every quarter Burren Capital Advisors Ltd has filed, its median largest position is 17.4% of the book and its median top-ten weight is 85.6%, which WhaleCreep classifies as concentrated (the gate is a median largest position of 5%). Of 30.0 completed holding spells, the median lasted 1.0 quarters; 16.0 positions are still open and their final length is unknown.