Port Capital LLC

In its 13F for Q1 2025 (holdings as of March 31, 2025, filed May 15, 2025), Port Capital LLC reported 87 stock positions worth $2.2 billion. Its top holding was Heico Class A (HEI.A) at 8.1% of the portfolio, followed by Rli (RLI, 5.6%) and RBC Bearings (RBC, 5.1%). Compared with Q4 2024, it opened 2 new positions, sold out of 3, added to 19 and reduced 51. The biggest buy was Brown & Brown (BRO, shares +31%) and the biggest sale an exit from Donnelley Financial Solution (DFIN).

Most Recent 13F
Q2 2026
Location
CHICAGO, IL
CIK
0001729212
Portfolio Value
$2.2B (Q1 2025)
SEC Filing
0001104659-25-049491 ↗ filed May 15, 2025

Holdings Value

0$500.0M$1.0B$1.5B$2.0B$2.5B Q1 2024: $2.0B Q1 2024 Q2 2024: $2.0B Q2 2024 Q3 2024: $2.2B Q3 2024 Q4 2024: $2.2B Q4 2024 Q1 2025: $2.2B $2.2B Q1 2025 Q2 2025: $2.4B Q2 2025 Q3 2025: $2.4B Q3 2025 Q4 2025: $2.3B Q4 2025 Q1 2026: $2.2B Q1 2026 Q2 2026: $2.5B Q2 2026

Holdings 87 stocks · $2.2B

HEI.A Heico Corp. Class A 8.07% 843,757 $178.0M Reduce -4.9%
RLI Rli Corp. 5.58% 1,532,011 $123.1M No change
RBC RBC Bearings Inc. 5.15% 352,858 $113.5M Reduce -7.0%
ORLY O'reilly Automotive Inc. 4.61% 71,046 $101.8M Reduce -0.7%
TDY Teledyne Technologies Inc. 4.42% 195,812 $97.5M Reduce -3.6%
PGR Progressive Corp. 4.40% 342,834 $97.0M Reduce -1.6%
APH Amphenol Corp. Class A 3.80% 1,277,357 $83.8M Reduce -7.4%
AME Ametek Inc. 3.67% 470,296 $81.0M Reduce -0.8%
LIN Linde PLC 3.67% 173,649 $80.9M Reduce -0.6%
CPRT Copart Inc. 3.60% 1,404,542 $79.5M Reduce -4.4%
FISV Fiserv Inc. 3.33% 332,384 $73.4M Reduce -1.2%
GGG Graco Inc. 3.01% 795,273 $66.4M Add +0.5%
ICE Intercontinental Exchange Inc. 2.95% 376,675 $65.0M Reduce -1.4%
ACGL Arch Capital Group Ltd. 2.81% 644,146 $62.0M Reduce -0.8%
MA Mastercard Inc. Class A 2.71% 109,173 $59.8M Reduce -0.8%
SSD Simpson Manufacturing Co. Inc. 2.70% 378,765 $59.5M Add +0.8%
KNSL Kinsale Capital Group Inc. 2.38% 107,778 $52.5M Add +0.8%
SPXC SPX Technologies Inc. 2.31% 395,536 $50.9M Add +5.7%
WTS Watts Water Technologies-A 2.15% 233,068 $47.5M Add +0.8%
ROP Roper Technologies Inc. 1.96% 73,430 $43.3M Reduce -0.0%
CP Canadian Pacific Kansas City 1.96% 614,923 $43.2M Reduce -13.6%
CACI Caci International Inc. Class A 1.94% 116,546 $42.8M Add +6.2%
PH Parker Hannifin Corp. 1.84% 66,898 $40.7M Reduce -0.3%
BRO Brown & Brown Inc. 1.78% 315,815 $39.3M Add +31.4%
V Visa Inc. Class A 1.78% 111,943 $39.2M Reduce -1.2%
PB Prosperity Bancshares Inc. 1.76% 544,533 $38.9M Add +1.0%
UNH Unitedhealth Group Inc. 1.71% 72,132 $37.8M Reduce -0.9%
ULS Ul Solutions Inc. Class A 1.57% 614,450 $34.7M Add +14.4%
WINA Winmark Corp. 1.55% 107,401 $34.1M Add +1.4%
IEX Idex Corp. 1.48% 179,980 $32.6M Reduce -7.3%
GBCI Glacier Bancorp Inc. 1.38% 688,223 $30.4M Add +1.1%
ADP Automatic Data Processing 1.38% 99,586 $30.4M Add +81.4%
SHW The Sherwin-Williams Co. 1.37% 86,429 $30.2M Add +0.6%
ONTO Onto Innovation Inc. 1.07% 194,101 $23.6M Reduce -10.4%
RSP Invesco S&P 500 Equal Weight 0.69% 87,628 $15.2M Reduce -1.2%
SIGI Selective Insurance Group 0.64% 154,903 $14.2M Add +1.1%
AAPL Apple Inc. 0.50% 49,833 $11.1M Reduce -5.8%
SPY SS SPDR S&P 500 ETF Trust-US 0.30% 11,687 $6.5M Reduce -6.0%
CL Colgate-Palmolive Co. 0.29% 68,472 $6.4M Reduce -0.1%
MSFT Microsoft Corp. 0.24% 14,089 $5.3M Reduce -1.3%
SCHF Schwab Intl Equity ETF 0.13% 142,137 $2.8M No change
GOOG Alphabet Inc. Class C 0.12% 16,901 $2.6M Reduce -1.3%
CSW CSW Industrials Inc. 0.08% 6,300 $1.8M Reduce -7.3%
AMZN Amazon.com Inc. 0.07% 7,582 $1.4M Reduce -4.5%
GOOGL Alphabet Inc. Class A 0.06% 8,574 $1.3M Reduce -4.7%
IAU iShares Gold Trust 0.06% 21,350 $1.3M No change
IJR iShares Core S&P Small-Cap E 0.05% 9,925 $1.0M Add +3.3%
JPM JPMorgan Chase & Co. 0.05% 4,106 $1.0M Reduce -17.6%
VTI VG Morningstar TS MKT ETF-US 0.04% 3,486 $958K No change
ARCC Ares Capital Corp. 0.04% 43,000 $953K No change
TXN Texas Instruments Inc. 0.04% 5,234 $941K Reduce -22.0%
IBM Intl Business Machines Corp. filed as INTERNATIONAL BUSINESS MACHS 0.04% 3,641 $905K Reduce -11.0%
JNJ Johnson & Johnson 0.04% 5,079 $842K Reduce -1.3%
BRK.B Berkshire Hathaway Inc. Class B 0.04% 1,569 $836K Reduce -1.6%
PBR.A Petroleo Brasil-SP Pref ADR 0.04% 62,467 $815K Reduce -1.3%
ABT Abbott Laboratories 0.04% 5,900 $783K Reduce -12.7%
MRK Merck & Co. Inc. 0.03% 8,326 $747K Add +0.2%
RYAN Ryan Specialty Holdings Inc. 0.03% 10,000 $739K No change
MAR Marriott International Class A 0.03% 2,907 $692K Add +0.8%
MCD McDonald's Corp. 0.03% 2,114 $660K Reduce -1.6%
SPDW Ste STR SPDR PT DW Eu ETF 0.03% 18,000 $655K No change
IWS iShares Russell Mid-Cap Valu 0.03% 5,010 $631K Reduce -11.8%
TEL Te Connectivity PLC 0.03% 4,120 $582K Reduce -29.5%
NTRS Northern Trust Corp. 0.03% 5,880 $580K Add +0.2%
TMO Thermo Fisher Scientific Inc. 0.03% 1,121 $558K Reduce -19.1%
EPD Enterprise Products Partners 0.02% 15,250 $521K No change
VT Vanguard Tot World STK ETF 0.02% 4,316 $500K No change
COST Costco Wholesale Corp. 0.02% 471 $445K Reduce -10.6%
COP Conocophillips 0.02% 4,105 $431K Reduce -1.1%
ITW Illinois Tool Works 0.02% 1,578 $391K Reduce -3.0%
UL Unilever PLC 0.02% 6,500 $387K No change
EL Estee Lauder Companies Class A filed as LAUDER ESTEE COS INC 0.02% 5,578 $368K Reduce -15.4%
KVUE Kenvue Inc. 0.02% 14,457 $347K Reduce -1.8%
BX Blackstone Inc. 0.02% 2,430 $340K Add +3.5%
GBDC Golub Capital BDC Inc. 0.02% 22,000 $333K No change
TW Tradeweb Markets Inc. Class A 0.01% 2,220 $330K No change
PSX Phillips 66 0.01% 2,464 $304K Reduce -0.7%
META Meta Platforms Inc. Class A 0.01% 458 $264K Reduce -14.4%
PFE Pfizer Inc. 0.01% 9,677 $245K Reduce -1.6%
HON Honeywell International Inc. 0.01% 1,141 $242K Reduce -35.8%
AON Aon PLC Class A 0.01% 600 $239K Reduce -3.1%
ACWI iShares MSCI Acwi ETF 0.01% 2,000 $233K No change
AXP American Express Co. 0.01% 853 $230K Reduce -7.0%
SCHC Schwab Intl Small-Cap Equity 0.01% 6,000 $215K New
PPL PPL Corp. 0.01% 5,654 $204K New
ATEC Alphatec Holdings Inc. 0.01% 13,000 $132K No change
SLDP Solid Power Inc. 0.00% 19,750 $21K No change

Portfolio Sells Q4 2024 → Q1 2025

DFIN Donnelley Financial Solution Sold out 0.00% −1.05
ONTO Onto Innovation Inc. Reduce -10.4% 1.07% −0.58
APH Amphenol Corp. Class A Reduce -7.4% 3.80% −0.57
CP Canadian Pacific Kansas City Reduce -13.6% 1.96% −0.39
IEX Idex Corp. Reduce -7.3% 1.48% −0.38
CPRT Copart Inc. Reduce -4.4% 3.60% −0.24
AME Ametek Inc. Reduce -0.8% 3.67% −0.23
PH Parker Hannifin Corp. Reduce -0.3% 1.84% −0.10
AAPL Apple Inc. Reduce -5.8% 0.50% −0.10
SPY SS SPDR S&P 500 ETF Trust-US Reduce -6.0% 0.30% −0.04
RBC RBC Bearings Inc. Reduce -7.0% 5.15% −0.04
MSFT Microsoft Corp. Reduce -1.3% 0.24% −0.03
GOOG Alphabet Inc. Class C Reduce -1.3% 0.12% −0.03
CSW CSW Industrials Inc. Reduce -7.3% 0.08% −0.03
RSP Invesco S&P 500 Equal Weight Reduce -1.2% 0.69% −0.02
GOOGL Alphabet Inc. Class A Reduce -4.7% 0.06% −0.02
TXN Texas Instruments Inc. Reduce -22.0% 0.04% −0.01
AMZN Amazon.com Inc. Reduce -4.5% 0.07% −0.01
TEL Te Connectivity PLC Reduce -29.5% 0.03% −0.01
CMCSA Comcast Corp. Class A Sold out 0.00% −0.01
PEP Pepsico Inc. Sold out 0.00% −0.01
JPM JPMorgan Chase & Co. Reduce -17.6% 0.05% −0.01
TMO Thermo Fisher Scientific Inc. Reduce -19.1% 0.03% −0.01
HON Honeywell International Inc. Reduce -35.8% 0.01% −0.01
EL Estee Lauder Companies Class A Reduce -15.4% 0.02% −0.01
IWS iShares Russell Mid-Cap Valu Reduce -11.8% 0.03% −0.00
META Meta Platforms Inc. Class A Reduce -14.4% 0.01% −0.00
AXP American Express Co. Reduce -7.0% 0.01% −0.00
COST Costco Wholesale Corp. Reduce -10.6% 0.02% −0.00
ITW Illinois Tool Works Reduce -3.0% 0.02% −0.00
PFE Pfizer Inc. Reduce -1.6% 0.01% −0.00
IBM Intl Business Machines Corp. Reduce -11.0% 0.04% 0.00
ABT Abbott Laboratories Reduce -12.7% 0.04% +0.00
COP Conocophillips Reduce -1.1% 0.02% +0.00
AON Aon PLC Class A Reduce -3.1% 0.01% +0.00
PSX Phillips 66 Reduce -0.7% 0.01% +0.00
KVUE Kenvue Inc. Reduce -1.8% 0.02% +0.00
MCD McDonald's Corp. Reduce -1.6% 0.03% +0.00
PBR.A Petroleo Brasil-SP Pref ADR Reduce -1.3% 0.04% +0.00
JNJ Johnson & Johnson Reduce -1.3% 0.04% +0.00
BRK.B Berkshire Hathaway Inc. Class B Reduce -1.6% 0.04% +0.00
CL Colgate-Palmolive Co. Reduce -0.1% 0.29% +0.01
UNH Unitedhealth Group Inc. Reduce -0.9% 1.71% +0.03
MA Mastercard Inc. Class A Reduce -0.8% 2.71% +0.07
ACGL Arch Capital Group Ltd. Reduce -0.8% 2.81% +0.07
TDY Teledyne Technologies Inc. Reduce -3.6% 4.42% +0.12
V Visa Inc. Class A Reduce -1.2% 1.78% +0.14
FISV Fiserv Inc. Reduce -1.2% 3.33% +0.17
ROP Roper Technologies Inc. Reduce -0.0% 1.96% +0.22
LIN Linde PLC Reduce -0.6% 3.67% +0.33

Portfolio Buys Q4 2024 → Q1 2025

BRO Brown & Brown Inc. Add +31.4% 1.78% +0.66
ADP Automatic Data Processing Add +81.4% 1.38% +0.65
ULS Ul Solutions Inc. Class A Add +14.4% 1.57% +0.35
KNSL Kinsale Capital Group Inc. Add +0.8% 2.38% +0.11
SHW The Sherwin-Williams Co. Add +0.6% 1.37% +0.04
SCHC Schwab Intl Small-Cap Equity New 0.01% +0.01
WTS Watts Water Technologies-A Add +0.8% 2.15% +0.01
PPL PPL Corp. New 0.01% +0.01
NTRS Northern Trust Corp. Add +0.2% 0.03% −0.00
BX Blackstone Inc. Add +3.5% 0.02% −0.00
IJR iShares Core S&P Small-Cap E Add +3.3% 0.05% −0.00
MRK Merck & Co. Inc. Add +0.2% 0.03% −0.00
MAR Marriott International Class A Add +0.8% 0.03% −0.01
SIGI Selective Insurance Group Add +1.1% 0.64% −0.01
GGG Graco Inc. Add +0.5% 3.01% −0.03
CACI Caci International Inc. Class A Add +6.2% 1.94% −0.09
PB Prosperity Bancshares Inc. Add +1.0% 1.76% −0.09
SSD Simpson Manufacturing Co. Inc. Add +0.8% 2.70% −0.15
SPXC SPX Technologies Inc. Add +5.7% 2.31% −0.18
GBCI Glacier Bancorp Inc. Add +1.1% 1.38% −0.18
WINA Winmark Corp. Add +1.4% 1.55% −0.35

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 108$2.5BHEI.A, RBC, TDY, APH, SPXC
Q1 2026 82$2.2BRBC, HEI.A, TDY, APH, AME
Q4 2025 82$2.3BHEI.A, RBC, APH, TDY, AME
Q3 2025 84$2.4BHEI.A, RBC, APH, TDY, ORLY
Q2 2025 85$2.4BHEI.A, RBC, APH, RLI, TDY
Q1 2025 87$2.2BHEI.A, RLI, RBC, ORLY, TDY
Q4 2024 88$2.2BHEI.A, RLI, RBC, APH, TDY
Q3 2024 87$2.2BHEI.A, RLI, RBC, APH, TDY
Q2 2024 85$2.0BHEI.A, RLI, RBC, CPRT, APH
Q1 2024 87$2.0BHEI.A, RLI, CPRT, RBC, TDY