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BROWN BROTHERS HARRIMAN & CO — 13F Holdings & Portfolio

CIK 14661 · latest 13F-HR filed 2026-05-14

Backtest portfolio

BROWN BROTHERS HARRIMAN & CO manages $18.65B in 13F-reported U.S. long-equity assets across 1,800 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are IVV (6.09%), GOOG (4.35%), MSFT (3.87%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 99 new positions, exited 132, added to 835, and trimmed 546.

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.

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AUM

$18.65B

Long-equity book

Holdings

1,800

Distinct positions

Period

2026-03-31

Filed 2026-05-14

Q/Q Activity

+99 / −132 / ↑835 / ↓546

vs 2025-12-31

Firm Profile & Key People
Name Title / Status Ownership Type

Top Adds (vs prior quarter)

  • ISHARES CORE S&P 500 ETF$362.8M +47.0%
  • US BANCORP$293.3M +5300.9%
  • GMO U.S. QUALITY ETF$206.5M +239.6%
  • EAGLE CAPITAL SELECT EQTY$172.1M +221.3%
  • ROCKWELL AUTOMATION INC$152.2M +24946.7%
Show all 835 →

Top Trims

  • AKRE FOCUS ETF-$396.3M -38.5%
  • MASTERCARD INC - A-$203.1M -35.9%
  • BOOKING HOLDINGS INC-$197.9M -61.7%
  • MICROSOFT CORP-$180.2M -20.0%
  • AUTOMATIC DATA PROCESSING-$174.3M -95.4%
Show all 546 →

New Positions

  • GOLUB CAPITAL BDC INC$11.9M
  • SOLARIS ENERGY INFRASTRUCTUR$11.9M
  • BLUE OWL CAPITAL CORP$9.4M
  • BLACKROCK MUNIYIELD QUALITY$3.9M
  • ISHARES 1-5Y INV GRADE CORP$3.0M
Show all 99 →

Exited Positions

  • BLACKROCK MUNIYIELD FUND$2.4M
  • DIMENSIONAL INTERNATIONAL CO$1.4M
  • ASTRAZENECA PLC-SPONS ADR$1.1M
  • INVESCO DB US DOLLAR INDEX B$994.0K
  • CLARIVATE PLC$611.1K
Show all 132 →
All Holdings

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 ISHARES CORE S&P 500 ETF IVV 464287200 $1.14B 6.09% 1,737,782 SH
2 ALPHABET INC-CL C GOOG 02079K107 $810.7M 4.35% 2,826,005 SH
3 MICROSOFT CORP MSFT 594918104 $720.9M 3.87% 1,947,381 SH
4 APPLE INC AAPL 037833100 $687.4M 3.69% 2,708,731 SH
5 AKRE FOCUS ETF AKRE 74316P579 $633.9M 3.40% 11,994,065 SH
6 BERKSHIRE HATHAWAY INC-CL B BRK.B 084670702 $545.6M 2.93% 1,138,587 SH
7 KLA CORP KLAC 482480100 $515.2M 2.76% 349,901 SH
8 AMAZON.COM INC AMZN 023135106 $475.4M 2.55% 2,282,640 SH
9 BBH SELECT MID CAP ETF BBHM 05528C667 $462.7M 2.48% 42,028,437 SH
10 BBH SELECT LARGE CAP ETF BBHL 05528C675 $420.2M 2.25% 27,973,649 SH
11 ISHARES CORE MSCI EAFE ETF IEFA 46432F842 $386.5M 2.07% 4,269,609 SH
12 WASTE MANAGEMENT INC WM 94106L109 $379.2M 2.03% 1,650,235 SH
13 MASTERCARD INC - A MA 57636Q104 $362.2M 1.94% 724,865 SH
14 LINDE PLC LIN G54950103 $358.8M 1.92% 723,725 SH
15 NVIDIA CORP NVDA 67066G104 $331.0M 1.78% 1,898,205 SH
16 APPLIED MATERIALS INC AMAT 038222105 $300.5M 1.61% 879,089 SH
17 US BANCORP USB 902973304 $298.8M 1.60% 5,745,120 SH
18 GMO U.S. QUALITY ETF QLTY 90139K100 $292.7M 1.57% 8,089,207 SH
19 ORACLE CORP ORCL 68389X105 $277.5M 1.49% 1,886,497 SH
20 PROGRESSIVE CORP PGR 743315103 $258.2M 1.38% 1,302,652 SH
21 EAGLE CAPITAL SELECT EQTY EAGL 88339Y102 $249.9M 1.34% 8,215,230 SH
22 WALMART INC WMT 931142103 $240.2M 1.29% 1,932,683 SH
23 COSTCO WHOLESALE CORP COST 22160K105 $233.2M 1.25% 234,028 SH
24 ELI LILLY & CO LLY 532457108 $225.9M 1.21% 245,599 SH
25 ARTHUR J GALLAGHER & CO AJG 363576109 $223.4M 1.20% 1,031,635 SH
26 ALPHABET INC-CL A GOOGL 02079K305 $169.5M 0.91% 589,515 SH
27 STATE STREET SPDR S&P 500 ETF TRUST CL USD INC SPY 78462F103 $167.7M 0.90% 257,892 SH
28 ZOETIS INC ZTS 98978V103 $167.5M 0.90% 1,416,566 SH
29 THERMO FISHER SCIENTIFIC INC TMO 883556102 $166.4M 0.89% 338,619 SH
30 JPMORGAN CHASE & CO JPM 46625H100 $166.1M 0.89% 564,561 SH
31 ALCON INC ALC H01301128 $154.6M 0.83% 2,052,229 SH
32 ROCKWELL AUTOMATION INC ROK 773903109 $152.8M 0.82% 425,771 SH
33 NIKE INC -CL B NKE 654106103 $152.1M 0.82% 2,879,404 SH
34 TEXAS INSTRUMENTS INC TXN 882508104 $150.3M 0.81% 774,141 SH
35 CADENCE DESIGN SYS INC CDNS 127387108 $150.1M 0.81% 540,303 SH
36 MCDONALDS CORP MCD 580135101 $149.2M 0.80% 480,179 SH
37 JOHNSON & JOHNSON JNJ 478160104 $147.0M 0.79% 601,322 SH
38 PROCTER & GAMBLE CO/THE PG 742718109 $139.6M 0.75% 966,537 SH
39 BROADCOM INC AVGO 11135F101 $139.5M 0.75% 450,849 SH
40 S&P GLOBAL INC SPGI 78409V104 $135.7M 0.73% 319,107 SH
41 ABBOTT LABORATORIES ABT 002824100 $126.3M 0.68% 1,229,974 SH
42 BOOKING HOLDINGS INC BKNG 09857L108 $122.9M 0.66% 29,187 SH
43 ISHARES RUSSELL 2000 ETF ETF IWM 464287655 $119.9M 0.64% 483,271 SH
44 GUIDEWIRE SOFTWARE INC GWRE 40171V100 $105.6M 0.57% 706,244 SH
45 COCA-COLA CO/THE KO 191216100 $103.7M 0.56% 1,363,492 SH
46 ANALOG DEVICES INC ADI 032654105 $102.8M 0.55% 323,041 SH
47 BERKSHIRE HATHAWAY INC-CL A BRK.A 084670108 $98.4M 0.53% 137 SH
48 PALO ALTO NETWORKS INC PANW 697435105 $96.3M 0.52% 600,388 SH
49 WOODWARD INC WWD 980745103 $85.7M 0.46% 239,421 SH
50 WATSCO INC WSO 942622200 $82.2M 0.44% 225,996 SH
Filing History
Period Filed AUM Holdings Accession
2026-03-31 2026-05-14 $18.65B 1,800 0001104659-26-060871
2025-12-31 2026-02-12 $18.34B 1,833 0001104659-26-014005
2025-09-30 2025-11-13 $16.42B 1,678 0001104659-25-111114