BC
Burren Capital Advisors Ltd Historical SEC 13F Holdings & Archive (Q3 2025)
Burren Capital Advisors LtdCIK: 0001542952
High-turnover traderMomentum followerQuality / disciplined sizing
Total reported value
$33.0M
Reporting period: 2025-09-30 · Number of holdings: 16
Burren Capital Advisors Ltd disclosed 16 holdings in its latest 13F filing for the period ending 2025-09-30, with total reported value of $33.0M and a quarterly turnover rate of 100.0%.
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Personality snowflake
- Concentration
- 42.29
- Portfolio Stability
- 100
- Momentum
- 100
- Sector conviction
- 0
- Diversification
- 32
- Sizing Uniformity
- 91.41
Sector classification currently covers about 12% of this portfolio's disclosed value; the remainder includes holdings (e.g. unmapped tickers, options, or other security types) not yet covered by our sector mapping.
Source and citation information
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Recent moves
View source Form 13F filing on SEC.govTrim KEL
-35.6% -$806.6K
Add FYBR
0.0% $1.4M
Trim SU6
-6.1% -$88.2K
New buy VRNA
New buy VTY
New buy TXNM
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | VRNA | Verona Pharma PLC - Adr | Stock-Other | 20.43% | +20.43% | NEW | |
| 2 | VTY | Verint Systems Inc | Stock-Other | 12.92% | +12.92% | NEW | |
| 3 | TXNM | Txnm Energy Inc | Stock-Utilities | 10.83% | +10.83% | NEW | |
| 4 | AL | Air Lease CORP | Stock-Other | 10.49% | +10.49% | NEW | |
| 5 | FYBR | Frontier Communications Pare | Stock-Other | 10.04% | +3.14% | — | |
| 6 | KEL | Kellanova | Stock-Other | 6.51% | -4.07% | -35.59% | |
| 7 | ZIMV | Zimvie Inc | Stock-Other | 6.04% | +6.04% | NEW | |
| 8 | AVDX | Avidxchange Holdings Inc | Stock-Other | 4.22% | +4.22% | NEW | |
| 9 | SYU1 | Synovus Financial CORP | Stock-Other | 3.13% | +3.13% | NEW | |
| 10 | SU6 | Surmodics Inc | Stock-Other | 3.05% | -0.86% | -6.09% | |
| 11 | ODP1 | Odp Corp/the | Stock-Other | 2.95% | +2.95% | NEW | |
| 12 | 2655957D | Premier Inc-class A | Stock-Other | 2.94% | +2.94% | NEW | |
| 13 | DAY | Dayforce Inc | Stock-Other | 2.20% | +2.20% | NEW | |
| 14 | STAA | Staar Surgical Co | Stock-Other | 2.00% | +2.00% | NEW | |
| 15 | CORZ | Core Scientific Inc | Stock-Tech | 1.34% | +1.34% | NEW | |
| 16 | CCRN | Cross Country Healthcare Inc | Stock-Other | 0.90% | +0.90% | NEW |
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2025 Q3 | 16 | $33.0M | 100 | ||
| 2025 Q2 | 15 | $34.2M | 0 | ||
| 2025 Q1 | 16 | $28.0M | 100 | ||
| 2024 Q4 | 15 | $16.8M | 0 | ||
| 2021 Q3 | 1 | — | 0 | ||
| 2021 Q2 | 1 | $1.1M | 100 | ||
| 2021 Q1 | 4 | $8.4M | 40 | ||
| 2020 Q4 | 5 | $10.4M | 100 | ||
| 2020 Q3 | 1 | $133.0K | 100 | ||
| 2020 Q2 | 1 | $418.0K | 100 | ||
| 2020 Q1 | 3 | $8.0M | 100 | ||
| 2019 Q4 | 13 | $29.6M | 100 | ||
| 2019 Q3 | 13 | $31.2M | 100 | ||
| 2019 Q2 | 4 | $12.3M | 100 | ||
| 2019 Q1 | 7 | $16.4M | 100 | ||
| 2018 Q4 | 3 | $2.9M | 100 | 1G0551A2T8S | |
| 2018 Q3 | 5 | $22.3M | 38 | ||
| 2018 Q2 | 6 | $25.7M | 100 | ||
| 2018 Q1 | 1 | $5.8M | 100 | ||
| 2017 Q4 | 5 | $16.9M | 100 | ||
| 2017 Q3 | 5 | $8.9M | 100 | ||
| 2017 Q2 | 6 | $16.5M | 100 | ||
| 2017 Q1 | 10 | $24.3M | 100 | ||
| 2016 Q4 | 10 | $29.7M | 100 | 192035529662443413086 | |
| 2016 Q3 | 7 | $23.5M | 100 | ||
| 2016 Q2 | 11 | $21.4M | 100 | ||
| 2016 Q1 | 7 | $13.5M | 100 | ||
| 2015 Q4 | 2 | $6.1M | 100 | 1G6852T2049513 | |
| 2015 Q3 | 9 | $22.5M | 100 | 112561W245812P3232820 | |
| 2015 Q2 | 18 | $51.1M | 100 | 112561W2441060345812P | |
| 2015 Q1 | 10 | $27.6M | 100 | 18265522307000387264S | |
| 2014 Q4 | 12 | $67.6M | 100 | 1307000214170T387264S | |
| 2014 Q3 | 22 | $106.2M | 100 | ||
| 2014 Q2 | 30 | $63.5M | 100 | ||
| 2014 Q1 | 18 | $76.7M | 100 | ||
| 2013 Q4 | 3 | $27.5M | 100 | 153217V24219333693139 | |
| 2013 Q3 | 10 | $71.7M | 100 | ||
| 2013 Q2 | 13 | $264.2M | 0 |
Holding changes this quarter
Burren Capital Advisors Ltd's most significant position changes for 2025-09-30: New buy: Verona Pharma PLC - Adr (VRNA); New buy: Verint Systems Inc (VTY); New buy: Txnm Energy Inc (TXNM); Sold out: Championx CORP (APY1EUR); New buy: Air Lease CORP (AL).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | FYBR | Frontier Communications Pare | +3.1% | — | Add |
| 2 | SU6 | Surmodics Inc | -0.9% | -6.09% | Trim |
| 3 | KEL | Kellanova | -4.1% | -35.59% | Add |
| 4 | VRNA | Verona Pharma PLC - Adr | — | NEW | New buy |
| 5 | VTY | Verint Systems Inc | — | NEW | New buy |
| 6 | TXNM | Txnm Energy Inc | — | NEW | New buy |
| 7 | APY1EUR | Championx CORP | — | EXIT | Sold out |
| 8 | AL | Air Lease CORP | — | NEW | New buy |
| 9 | HES | Hess CORP | — | EXIT | Sold out |
| 10 | DNB | Dun & Bradstreet Holdings In | — | EXIT | Sold out |
| 11 | ITCIEUR | Intra-cellular Therapies Inc | — | EXIT | Sold out |
| 12 | AKX | Ansys Inc | — | EXIT | Sold out |
| 13 | ZIMV | Zimvie Inc | — | NEW | New buy |
| 14 | BERYEUR | Berry Global Group Inc | — | EXIT | Sold out |
| 15 | DFSEUR | Discover Financial Services | — | EXIT | Sold out |
| 16 | AVDX | Avidxchange Holdings Inc | — | NEW | New buy |
| 17 | WDC | Western Digital CORP | — | EXIT | Sold out |
| 18 | JNP | Juniper Networks Inc | — | EXIT | Sold out |
| 19 | SYU1 | Synovus Financial CORP | — | NEW | New buy |
| 20 | ODP1 | Odp Corp/the | — | NEW | New buy |
| 21 | 2655957D | Premier Inc-class A | — | NEW | New buy |
| 22 | ✓ | Enfusion Inc - Class A | — | EXIT | Sold out |
| 23 | DAY | Dayforce Inc | — | NEW | New buy |
| 24 | HEESEUR | H&e Equipment Services Inc | — | EXIT | Sold out |
| 25 | STAA | Staar Surgical Co | — | NEW | New buy |
| 26 | AMED | Amedisys Inc | — | EXIT | Sold out |
| 27 | WBA | Walgreens Boots Alliance Inc | — | EXIT | Sold out |
| 28 | CORZ | Core Scientific Inc | — | NEW | New buy |
| 29 | CCRN | Cross Country Healthcare Inc | — | NEW | New buy |
Filing History
FAQ
What is Burren Capital Advisors Ltd and what type of investor is it?
Burren Capital Advisors Ltd is an investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2025-09-30), the firm manages a tracked equity portfolio valued at approximately $33.0M, spread across 16 disclosed positions.
What are Burren Capital Advisors Ltd's largest equity positions?
Based on the latest 13F filing, Burren Capital Advisors Ltd's top holdings by market value are:
1. Verona Pharma PLC - Adr (VRNA) — $6.7M (20.4%)
2. Verint Systems Inc (VTY) — $4.3M (12.9%)
3. Txnm Energy Inc (TXNM) — $3.6M (10.8%)
4. Air Lease CORP (AL) — $3.5M (10.5%)
5. Frontier Communications Pare (FYBR) — $3.3M (10.0%)
What changes did Burren Capital Advisors Ltd make in its most recent portfolio filing?
In the latest reported quarter, Burren Capital Advisors Ltd made 29 notable position adjustments: 13 new positions were initiated, 2 existing holdings were added to, 1 positions were partially reduced, and 13 were completely exited. The largest of these moves: New buy: Verona Pharma PLC - Adr (VRNA); New buy: Verint Systems Inc (VTY); New buy: Txnm Energy Inc (TXNM); Sold out: Championx CORP (APY1EUR); New buy: Air Lease CORP (AL)
What sectors does Burren Capital Advisors Ltd focus on?
Burren Capital Advisors Ltd is concentrated in the following sectors based on its current disclosed equity portfolio:
• Utilities: 89.0%
• Information Technology: 11.0%
Investment Profile
Burren Capital Advisors Ltd's portfolio is moderately concentrated and fast-trading, with 89.0% of the portfolio concentrated in Utilities.
Its turnover score has risen from 0 to 100 over the past 4 quarters — a shift toward more active trading.
It has added to its FYBR position over the past two quarters (+$1.4M, now $3.3M), while trimming SU6 over the same stretch (-$88.2K, still holding $1.0M).
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Developer Access
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