Glenn Greenberg
Brave Warrior Advisors
Glenn Greenberg (Brave Warrior Advisors) discloses a $4.04B portfolio across 36 US-listed positions in the latest 13F filing (2026Q1, filed May 15, 2026). The largest holding is SNX at 12.8% of the book. The biggest move of the quarter: opened a new position in ICLR ($332M). Latticework's clone backtest puts this 13F book at -1.7%/yr vs SPY over 12.0 years.
About Glenn Greenberg
Glenn Greenberg co-founded Chieftain Capital in 1984 alongside John Shapiro, building a reputation for deep-fundamental, highly concentrated long-only equity work before launching Brave Warrior Advisors in 2010. The style is straightforward: identify businesses with durable competitive positions and patient capital allocation, hold them in size, and turn over the portfolio infrequently — a discipline reflected in Brave Warrior's current 13F, where five names account for roughly half of disclosed U.S. long equity. With 36 positions across a $4.0B book, the portfolio is genuinely concentrated by institutional standards, and the top holdings — distribution, consumer finance, contract research, managed care, and auto retail — suggest a preference for businesses with recurring revenue or structural pricing power rather than thematic momentum. The 13F captures the strategy reasonably well because derivatives and short selling are not central to the public record here; what you see is close to what drives performance. The latticework backtest shows modest negative excess return versus SPY over twelve years, a reminder that concentration and quality bias do not automatically translate to index-beating results in all regimes.
2026Q1 brief
Glenn Greenberg's Brave Warrior Advisors ($4.04B, 36 positions) made ICLR (Icon PLC) its single most consequential move in 2026Q1, initiating a brand-new position that immediately became the third-largest holding at 8.2% of the portfolio — a textbook Greenberg-style conviction entry into a competitively advantaged CRO business under pressure. The top-five concentration sits at 46.8%, anchored by SNX (12.8%) and OMF (10.2%), underscoring his characteristically narrow, high-conviction approach. The ICLR bet is notably contrarian: CRO stocks have faced macro headwinds from biotech funding tightness, suggesting Greenberg sees a valuation dislocation. Elsewhere, he trimmed MPLX by 27% (still a meaningful 4.6% position) and cut HCA by 66%, the latter a near-exit that signals fading conviction in for-profit hospital operators. The exits of USB, V, and SPGI — all previously sub-0.02% residuals — are routine housekeeping. The new toe-hold positions in ARES and APO (both under 0.02%) are worth watching: watch whether alternative asset managers get sized up meaningfully in the next filing.
AI-generated. Not investment advice.
In the news
all news →No recent news mentions of Glenn Greenberg.
Headlines via Google News. Links open in a new tab.
Holdings (36) · click any column to sort
| #↑ | Ticker | Issuer | % Port. | This Q | History | Value |
|---|---|---|---|---|---|---|
| 1 | SNX | 12.8% | $515M | |||
| 2 | OMF | 10.2% | $412M | |||
| 3 | ICLR | 8.2% | $332M | |||
| 4 | ELV | 8.1% | $329M | |||
| 5 | AN | 7.5% | $302M | |||
| 6 | SLM | 7.2% | $291M | |||
| 7 | MRP | 5.9% | $238M | |||
| 8 | PRI | 5.5% | $220M | |||
| 9 | LEN | 5.2% | $209M | |||
| 10 | BLDR | 4.8% | $195M | |||
| 11 | MPLX | 4.6% | $186M | |||
| 12 | COF | 4.5% | $183M | |||
| 13 | RYAAY | 4.3% | $176M | |||
| 14 | FNF | 4.0% | $162M | |||
| 15 | FG | 3.4% | $136M | |||
| 16 | DHI | 2.4% | $95M | |||
| 17 | AM | 1.0% | $42M | |||
| 18 | GOOGL | 0.1% | $6M | |||
| 19 | JPM | <0.1% | $2M | |||
| 20 | SUNB | <0.1% | $2M | |||
| 21 | GOOG | <0.1% | $1M | |||
| 22 | CMCSA | <0.1% | $893K | |||
| 23 | MSFT | <0.1% | $750K | |||
| 24 | BAC | <0.1% | $708K | |||
| 25 | HCA | <0.1% | $631K | |||
| 26 | ARES | <0.1% | $546K | |||
| 27 | APO | <0.1% | $501K | |||
| 28 | MAR | <0.1% | $391K | |||
| 29 | PGR | <0.1% | $355K | |||
| 30 | AMAT | <0.1% | $328K | |||
| 31 | FAF | <0.1% | $301K | |||
| 32 | AMZN | <0.1% | $292K | |||
| 33 | ET | <0.1% | $290K | |||
| 34 | META | <0.1% | $213K | |||
| 35 | MA | <0.1% | $211K | |||
| 36 | MCO | <0.1% | $205K |
- 1SNXport12.8%val$515MTD Synnex Corpthis Q hold·9q
- 2OMFport10.2%val$412MOnemain Holdings Incthis Q hold·16q
- 3ICLRport8.2%val$332MIcon Plcthis Q New·7q
- 4ELVport8.1%val$329MElevance Health Incthis Q hold·27q
- 5ANport7.5%val$302MAutonation Incthis Q hold·14q
- 6SLMport7.2%val$291MSlm Corpthis Q hold·5q
- 7MRPport5.9%val$238MMillrose Propertiesthis Q hold·5q
- 8PRIport5.5%val$220MPrimerica Incthis Q hold·40q
- 9LENport5.2%val$209MLennar Corp-athis Q hold·25q
- 10BLDRport4.8%val$195MBuilders Firstsource Incthis Q hold·5q
- 11MPLXport4.6%val$186MMplx LPthis Q -27%·12q
- 12COFport4.5%val$183MCapital One Financial Corpthis Q hold·6q
- 13RYAAYport4.3%val$176MRyanair Holdings Plc-sp Adrthis Q hold·14q
- 14FNFport4.0%val$162MFidelity National Financialthis Q hold·20q
- 15FGport3.4%val$136MF&g Annuities & Life Incthis Q hold·14q
- 16DHIport2.4%val$95MDR Horton Incthis Q hold·25q
- 17AMport1.0%val$42MAntero Midstream Corpthis Q hold·29q
- 18GOOGLport0.1%val$6MAlphabet Inc-cl Athis Q hold·34q
- 19JPMport<0.1%val$2MJpmorgan Chase & COthis Q hold·40q
- 20SUNBport<0.1%val$2MSunbelt Rentals Holdings Incthis Q New·—1q
- 21GOOGport<0.1%val$1MAlphabet Inc-cl Cthis Q hold·31q
- 22CMCSAport<0.1%val$893KComcast Corp-class Athis Q hold·40q
- 23MSFTport<0.1%val$750KMicrosoft Corpthis Q +286%·14q
- 24BACport<0.1%val$708KBank OF America Corpthis Q -45%·40q
- 25HCAport<0.1%val$631KHca Healthcare Incthis Q -66%·34q
- 26ARESport<0.1%val$546KAres Management Corp - Athis Q New·—1q
- 27APOport<0.1%val$501KApollo Global Management Incthis Q New·12q
- 28MARport<0.1%val$391KMarriott International -cl Athis Q hold·21q
- 29PGRport<0.1%val$355KProgressive Corpthis Q hold·26q
- 30AMATport<0.1%val$328KApplied Materials Incthis Q hold·3q
- 31FAFport<0.1%val$301KFirst American Financialthis Q New·10q
- 32AMZNport<0.1%val$292KAmazon.com Incthis Q hold·22q
- 33ETport<0.1%val$290KEnergy Transfer LPthis Q New·—1q
- 34METAport<0.1%val$213KMeta Platforms Inc-class Athis Q hold·15q
- 35MAport<0.1%val$211KMastercard Inc - Athis Q hold·11q
- 36MCOport<0.1%val$205KMoody's Corpthis Q hold·28q
All activity (2026Q1)
| Ticker | Issuer | Move | % Port. | Δ Shares | Value |
|---|---|---|---|---|---|
| ICLR | Icon Plc | NEW | 8.2% | +100% | $332M |
| MPLX | Mplx LP | TRIM | 4.6% | -27% | $186M |
| HCA | Hca Healthcare Inc | TRIM | <0.1% | -66% | $631K |
| SUNB | Sunbelt Rentals Holdings Inc | NEW | <0.1% | +100% | $2M |
| BAC | Bank OF America Corp | TRIM | <0.1% | -45% | $708K |
| MSFT | Microsoft Corp | ADD | <0.1% | +286% | $750K |
| USB | US Bancorp | EXIT | <0.1% | -100% | $0 |
| ARES | Ares Management Corp - A | NEW | <0.1% | +100% | $546K |
| APO | Apollo Global Management Inc | NEW | <0.1% | +100% | $501K |
| ET | Energy Transfer LP | NEW | <0.1% | +100% | $290K |
| FAF | First American Financial | NEW | <0.1% | +100% | $301K |
| SPGI | S&p Global Inc | EXIT | <0.1% | -100% | $0 |
| V | Visa Inc-class A Shares | EXIT | <0.1% | -100% | $0 |
- NEWICLR8.2%Icon PlcΔ +100%·$332M
- TRIMMPLX4.6%Mplx LPΔ -27%·$186M
- TRIMHCA<0.1%Hca Healthcare IncΔ -66%·$631K
- NEWSUNB<0.1%Sunbelt Rentals Holdings IncΔ +100%·$2M
- TRIMBAC<0.1%Bank OF America CorpΔ -45%·$708K
- ADDMSFT<0.1%Microsoft CorpΔ +286%·$750K
- EXITUSB<0.1%US BancorpΔ -100%·$0
- NEWARES<0.1%Ares Management Corp - AΔ +100%·$546K
- NEWAPO<0.1%Apollo Global Management IncΔ +100%·$501K
- NEWET<0.1%Energy Transfer LPΔ +100%·$290K
- NEWFAF<0.1%First American FinancialΔ +100%·$301K
- EXITSPGI<0.1%S&p Global IncΔ -100%·$0
- EXITV<0.1%Visa Inc-class A SharesΔ -100%·$0
Frequently asked questions
- What stocks does Glenn Greenberg own?
- As of 2026Q1, Glenn Greenberg's 13F discloses 36 positions worth $4.04B. The top five holdings: SNX (12.8%), OMF (10.2%), ICLR (8.2%), ELV (8.1%), AN (7.5%). 13F filings cover long US-listed equities only — cash, bonds, shorts, and non-US positions are not disclosed.
- What did Glenn Greenberg buy this quarter?
- In 2026Q1, the filing shows 6 new positions and 1 addition to existing holdings. The largest positions touched by buying: ICLR, SUNB, MSFT, ARES, APO.
- How big is Glenn Greenberg's portfolio?
- $4.04B across 36 positions per the latest 13F (filed May 15, 2026). The top five holdings account for 47% of the disclosed book.
Explore more
Long US equity 13F-HR filings only — no shorts, no derivatives. SEC filings at EDGAR (CIK 0001553733). Not investment advice.