Pamplona Capital Management, LLC — 13F Holdings & Portfolio
CIK 1554913 · latest 13F-HR filed 2026-11-13
Pamplona Capital Management, LLC manages $343.3M in 13F-reported U.S. long-equity assets across 4 reported positions as of its 2026-09-30 13F-HR filing. Its largest disclosed positions are SWIM (94.09%), ESTC (5.63%), NXH (0.28%). Quarter over quarter (versus its 2026-06-30 filing) the fund opened 1 new position and exited 2; 1 existing position rose in reported value and 1 fell.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
Long-equity book
Distinct positions
Filed 2026-11-13
vs 2026-06-30
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
Portfolio map
Q3 26Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.
Sector mix
% of 13F valueSectors from each company's SIC code; funds and ETFs grouped separately.
Biggest buys and sells
Q2 26 → Q3 26Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.
13F assets and positions
5 quartersTotal reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.
Top positions over time
reported valueThe eight largest current positions, valued at each quarter end.
Concentration
top 10 = 100%Cumulative share of the portfolio held in the largest N positions.
As of the firm’s regulatory filing dated Mar 30, 2026.
24TH FLOOR, OFFICE 24B
NEW YORK, NY 10019
| Name | Title / Status | Ownership | Type |
|---|---|---|---|
| O'FLAHERTY, KEVIN, FINBARR Control | CHIEF COMPLIANCE OFFICER since Dec 2011 | Less than 5% | Individual |
| PAMPLONA PE INVESTMENTS US LIMITED Control | MANAGING MEMBER since Dec 2011 | 75% or more | Domestic Entity |
| HALSTED, JOHN, COMBOTHEKRAS Control Indirect owner via PCM PE INVESTMENTS HOLDINGS, LLC | SHAREHOLDER since Oct 2009 | 75% or more | Individual |
| KNASTER, ALEXANDER, MARK Control Indirect owner via PAMPLONA PE INVESTMENTS HOLDING II LIMITED | SHAREHOLDER since Oct 2009 | 75% or more | Individual |
| PAMPLONA PE INVESTMENTS HOLDING II LIMITED Control Indirect owner via PAMPLONA PE INVESTMENTS US LIMITED | SHAREHOLDER since Dec 2015 | 25–50% | Foreign Entity |
| PAMPLONA PE INVESTMENTS HOLDING LIMITED Control Indirect owner via PAMPLONA PE INVESTMENTS US LIMITED | SHAREHOLDER since Dec 2011 | 50–75% | Foreign Entity |
| PCM PE INVESTMENTS HOLDINGS, LLC Control Indirect owner via PAMPLONA PE INVESTMENTS HOLDING LIMITED | SHAREHOLDER since May 2018 | 75% or more | Domestic Entity |
Ownership & leadership changes · 7 filings with changes since Feb 13, 2012
From the firm’s regulatory filings, newest first. Dates are filing dates: a filing that no longer lists someone does not say when they left.
- No longer listedHALSTED, JOHN, COMBOTHEKRAS · SHAREHOLDER · 75% or more · indirect via PAMPLONA PE INVESTMENTS HOLDING LIMITED · control person · listed since Oct 2009
- AddedHALSTED, JOHN, COMBOTHEKRAS · SHAREHOLDER · 75% or more · indirect via PCM PE INVESTMENTS HOLDINGS, LLC · control person
- ChangedPAMPLONA PE INVESTMENTS HOLDING II LIMITED · indirect via PAMPLONA PE INVESTMENTS US LIMITED: ownership 50–75% → 25–50%
- ChangedPCM PE INVESTMENTS HOLDINGS, LLC · indirect via PAMPLONA PE INVESTMENTS HOLDING LIMITED: ownership 50–75% → 75% or more
- ChangedPAMPLONA PE INVESTMENTS US LIMITED · title MANAGING MEMBER OF PAMPLONA CAPITAL MANAGEMENT LLC → MANAGING MEMBER
- ChangedPCM PE INVESTMENTS HOLDINGS, LLC · indirect via PAMPLONA PE INVESTMENTS HOLDING LIMITED: ownership 75% or more → 50–75%
- AddedPCM PE INVESTMENTS HOLDINGS, LLC · SHAREHOLDER · 75% or more · indirect via PAMPLONA PE INVESTMENTS HOLDING LIMITED · control person
- No longer listedKNASTER, ALEXANDER, MARK · SHAREHOLDER · 25–50% · indirect via PAMPLONA PE INVESTMENTS HOLDING LIMITED · control person · listed since Oct 2009
- AddedKNASTER, ALEXANDER, MARK · SHAREHOLDER · 75% or more · indirect via PAMPLONA PE INVESTMENTS HOLDING II LIMITED · control person
- AddedPAMPLONA PE INVESTMENTS HOLDING II LIMITED · SHAREHOLDER · 50–75% · indirect via PAMPLONA PE INVESTMENTS US LIMITED · control person
- ChangedHALSTED, JOHN, COMBOTHEKRAS · indirect via PAMPLONA PE INVESTMENTS HOLDING LIMITED: ownership 50–75% → 75% or more
- ChangedPAMPLONA PE INVESTMENTS HOLDING LIMITED · indirect via PAMPLONA PE INVESTMENTS US LIMITED: ownership 75% or more → 50–75%
- No longer listedRATZAN, BRIAN, K · MANAGING PARTNER, US PRIVATE EQUITY · Less than 5% · control person · listed since Dec 2011
- ChangedHALSTED, JOHN, COMBOTHEKRAS · indirect via PAMPLONA PE INVESTMENTS HOLDING LIMITED: title MEMBER OF PAMPLONA PE INVESTMENTS HOLDING LIMITED → SHAREHOLDER
- ChangedKNASTER, ALEXANDER, MARK · indirect via PAMPLONA PE INVESTMENTS HOLDING LIMITED: title MEMBER OF PAMPLONA PE INVESTMENTS HOLDING LIMITED → SHAREHOLDER; ownership 50–75% → 25–50%
- ChangedPAMPLONA PE INVESTMENTS HOLDING LIMITED · indirect via PAMPLONA PE INVESTMENTS US LIMITED: title MEMBER OF PAMPLONA PE INVESTMENTS US LIMITED → SHAREHOLDER
- ChangedRATZAN, BRIAN, K · title PRINCIPAL → MANAGING PARTNER, US PRIVATE EQUITY
- ListedHALSTED, JOHN, COMBOTHEKRAS · MEMBER OF PAMPLONA PE INVESTMENTS HOLDING LIMITED · 50–75% · indirect via PAMPLONA PE INVESTMENTS HOLDING LIMITED · control person
- ListedKNASTER, ALEXANDER, MARK · MEMBER OF PAMPLONA PE INVESTMENTS HOLDING LIMITED · 50–75% · indirect via PAMPLONA PE INVESTMENTS HOLDING LIMITED · control person
- ListedO'FLAHERTY, KEVIN, FINBARR · CHIEF COMPLIANCE OFFICER · Less than 5% · control person
- ListedPAMPLONA PE INVESTMENTS HOLDING LIMITED · MEMBER OF PAMPLONA PE INVESTMENTS US LIMITED · 75% or more · indirect via PAMPLONA PE INVESTMENTS US LIMITED · control person
- ListedPAMPLONA PE INVESTMENTS US LIMITED · MANAGING MEMBER OF PAMPLONA CAPITAL MANAGEMENT LLC · 75% or more · control person
- ListedRATZAN, BRIAN, K · PRINCIPAL · Less than 5% · control person
Quarter-over-quarter changes
Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.
Pamplona Capital Management, LLC Holdings (2026-09-30)
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | LATHAM GROUP INC | SWIM | 51819L107 | $323.0M | 94.09% | 51,845,685 | SH |
| 2 | ELASTIC NV | ESTC | N14506104 | $19.3M | 5.63% | 210,600 | SH |
| 3 | NEIGHBORHOOD INTELLIGENCE IN | NXH | 690370101 | $972.1K | 0.28% | 330,655 | SH |
| 4 | NEIGHBORHOOD INTELLIGENCE IN | BBBYW | 690370127 | $14.5K | 0.00% | 33,065 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-09-30 | 2026-11-13 | $343.3M | 4 | 0001193125-26-460178 |
| 2026-06-30 | 2026-08-14 | $361.3M | 5 | 0001193125-26-350261 |
| 2026-03-31 | 2026-05-15 | $473.1M | 5 | 0001193125-26-225425 |
| 2025-12-31 | 2026-02-13 | $549.3M | 5 | 0001193125-26-050728 |
| 2025-09-30 | 2025-11-14 | $757.1M | 6 | 0001193125-25-281629 |
NEW YORK
NEW YORK, NY 10019