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Northstar Group, Inc. — 13F Holdings & Portfolio

CIK 1631408 · latest 13F-HR filed 2026-08-03

Backtest portfolio

Northstar Group, Inc. manages $777.0M in 13F-reported U.S. long-equity assets across 168 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are BRK.B (15.20%), VTI (11.57%), BIL (6.58%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 9 new positions and exited 7; 92 existing positions rose in reported value and 25 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.

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AUM
$777.0M

Long-equity book

Holdings
168

Distinct positions

Period
2026-06-30

Filed 2026-08-03

Q/Q Activity
+9 / −7 / ↑92 / ↓25

vs 2026-03-31

Portfolio charts

Latest quarter's book, what changed, and how the portfolio has evolved across filings.

Portfolio map

Q2 26
BRK.B15.2% · -0%VTI11.6% · +1%BIL6.6% · +6%AAPL5.6% · -0%GOOG4.8% · -1%GOOGL3.3% · -1%VOO3.0% · -0%AMZN2.7% · +0%COST2.6% · -0%META1.8% · -0%VTV1.7% · +8%IBDR1.7% · +3%ACGL1.7% · +3%VXUS1.6% · +6%IBDS1.6% · +7%VIG1.4% · +2%JNJ1.4% · -0%IBDT1.3% · +11%IWF1.2% · +301%VUG1.1% · +499%IBTH1.0% · +8%IBTI1.0% · +8%AXP0.9% · +0%MKL0.9% · +20%ECL0.8% · -2%WMT0.8% · -1%VT0.8% · -0%BRK.A0.8% · 0%ABBV0.7% · 0%BR0.7% · +18%BKNG0.7% · +2347%SBUX0.7% · -5%VEU0.6% · +2%V0.6% · +3%MSFT0.6% · +0%SCHD0.5% · +0%SPY0.5% · 0%UNP0.5% · 0%IBTJ0.5% · +26%VYM0.4% · +0%ADP0.4% · -2%MRK0.4% · -0%DIS0.4% · -2%KO0.4% · -1%JPM0.3% · -1%IBDU0.3% · +12%NVDA0.3% · +9%PEP0.3% · -2%HD0.3% · 0%CAT0.3% · -14%VBIL0.3% · +12%SYK0.3% · 0%IBTG0.3% · 0%PG0.2% · -1%VHT0.2% · +3%RTX0.2% · -1%MCD0.2% · 0%CB0.2% · +14%GLW0.2% · -12%QQQ0.2% · -2%

Box 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 value

Sectors from each company's SIC code; funds and ETFs grouped separately.

Biggest buys and sells

Q1 26 → Q2 26

Estimated 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

3 quarters

Total reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.

Top positions over time

reported value

The eight largest current positions, valued at each quarter end.

Concentration

top 10 = 57.1%

Cumulative share of the portfolio held in the largest N positions.

Firm Profile & Key People

As of the firm’s regulatory filing dated Sep 30, 2026.

Assets Under Management
$1.02B
Discretionary
$1.02B
Employees
17
Accounts
6
Address
311 N 7TH AVE
SUITE 100
MINNEAPOLIS, MN 55401-1237
Phone
(612) 371-5700
Website
Name Title / Status Ownership Type
DUFFY, TIMOTHY, SCOTT ControlCHIEF FINANCIAL OFFICER, CHIEF COMPLIANCE OFFICER
since Sep 2017
Less than 5%Individual
KOCOUREK, CHRISTOPHER, JOHN ControlMANAGING PARTNER, MEMBER, CLASS C
since Jan 2020
25–50%Individual
MARK, DOUGLAS, EDWIN ControlMANAGING PARTNER; MEMBER, CLASS C
since Jul 2004
25–50%Individual
SCHNEIDER, BRIAN, JAMES ControlMANAGING PARTNER; MEMBER, CLASS C
since Jan 2015
25–50%Individual
Ownership & leadership changes · 10 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.

Mar 31, 2023 filing
  • ChangedKOCOUREK, CHRISTOPHER, JOHN · ownership 10–25% → 25–50%
Mar 29, 2021 filing
  • No longer listedBECKER, SCOTT, LEE · ADVISING PARTNER; MEMBER · Less than 5% · listed since Dec 2017
  • No longer listedSCHROEDER, CHARLES, LEE · ADVISING PARTNER; MEMBER · Less than 5% · listed since Dec 2015
Mar 30, 2020 filing
  • AddedKOCOUREK, CHRISTOPHER, JOHN · MANAGING PARTNER, MEMBER, CLASS C · 10–25% · control person
  • ChangedMARK, DOUGLAS, EDWIN · ownership 50–75% → 25–50%
  • ChangedSCHNEIDER, BRIAN, JAMES · ownership 50–75% → 25–50%
Mar 29, 2019 filing
  • ChangedBECKER, SCOTT, LEE · title ADVISING PARTNER; MEMBER, CLASS C → ADVISING PARTNER; MEMBER; ownership 10–25% → Less than 5%
  • ChangedMARK, DOUGLAS, EDWIN · ownership 25–50% → 50–75%
  • ChangedSCHNEIDER, BRIAN, JAMES · ownership 25–50% → 50–75%
Mar 29, 2018 filing
  • ChangedBECKER, SCOTT, LEE · title MANAGING PARTNER; MEMBER, CLASS C → ADVISING PARTNER; MEMBER, CLASS C; ownership 25–50% → 10–25%; no longer a control person
Sep 21, 2017 filing
  • ChangedBECKER, SCOTT, LEE · title MANAGING PARTNER, CLASS C → MANAGING PARTNER; MEMBER, CLASS C
  • ChangedMARK, DOUGLAS, EDWIN · title MANAGING PARTNER, CLASS C → MANAGING PARTNER; MEMBER, CLASS C
  • ChangedSCHNEIDER, BRIAN, JAMES · title MANAGING PARTNER, CLASS C → MANAGING PARTNER; MEMBER, CLASS C
  • ChangedSCHROEDER, CHARLES, LEE · title ADVISING PARTNER → ADVISING PARTNER; MEMBER
Sep 5, 2017 filing
  • No longer listedLARSEN, KENNETH, RICHARD · CHIEF FINANCIAL OFFICER, CHIEF COMPLIANCE OFFICER, PARTNER · Less than 5% · control person · listed since May 2007
  • AddedDUFFY, TIMOTHY, SCOTT · CHIEF FINANCIAL OFFICER, CHIEF COMPLIANCE OFFICER · Less than 5% · control person
Mar 28, 2017 filing
  • ChangedBECKER, SCOTT, LEE · title MANAGING PARTNER, CLASS B → MANAGING PARTNER, CLASS C; ownership 10–25% → 25–50%
  • ChangedMARK, DOUGLAS, EDWIN · title MANAGING PARTNER, CLASS B → MANAGING PARTNER, CLASS C; ownership 10–25% → 25–50%
  • ChangedSCHNEIDER, BRIAN, JAMES · title MANAGING PARTNER, CLASS B → MANAGING PARTNER, CLASS C; ownership 10–25% → 25–50%
  • ChangedSCHROEDER, CHARLES, LEE · title MANAGING PARTNER, CLASS B → ADVISING PARTNER; ownership 10–25% → Less than 5%
Mar 22, 2016 filing
  • ChangedBECKER, SCOTT, LEE · ownership 25–50% → 10–25%
  • ChangedMARK, DOUGLAS, EDWIN · ownership 25–50% → 10–25%
  • ChangedSCHROEDER, CHARLES, LEE · ownership 25–50% → 10–25%; no longer a control person
Mar 26, 2015 filing
  • AddedSCHNEIDER, BRIAN, JAMES · MANAGING PARTNER, CLASS B · 10–25% · control person
  • ChangedLARSEN, KENNETH, RICHARD · title CHIEF FINANCIAL OFFICER, CHIEF COMPLIANCE OFFICER → CHIEF FINANCIAL OFFICER, CHIEF COMPLIANCE OFFICER, PARTNER
Older changes (1 more filing)
Feb 13, 2012 filing (earliest on record)
  • ListedBECKER, SCOTT, LEE · MANAGING PARTNER, CLASS B · 25–50% · control person
  • ListedLARSEN, KENNETH, RICHARD · CHIEF FINANCIAL OFFICER, CHIEF COMPLIANCE OFFICER · Less than 5% · control person
  • ListedMARK, DOUGLAS, EDWIN · MANAGING PARTNER, CLASS B · 25–50% · control person
  • ListedSCHROEDER, CHARLES, LEE · MANAGING PARTNER, CLASS B · 25–50% · 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.

Top Adds (vs prior quarter)

Show all 92 →

Top Trims

Show all 25 →

New Positions

Show all 9 →

Exited Positions

Show all 7 →

Northstar Group, Inc. Holdings (2026-06-30)

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 BERKSHIRE HATHAWAY INC DEL BRK.B 084670702 $118.1M 15.20% 235,982 SH
2 VANGUARD INDEX FDS VTI 922908769 $89.9M 11.57% 242,961 SH
3 SPDR SERIES TRUST BIL 78468R663 $51.1M 6.58% 557,601 SH
4 APPLE INC AAPL 037833100 $43.3M 5.57% 149,674 SH
5 ALPHABET INC GOOG 02079K107 $37.3M 4.80% 105,459 SH
6 ALPHABET INC GOOGL 02079K305 $25.9M 3.33% 72,408 SH
7 VANGUARD INDEX FDS VOO 922908363 $23.4M 3.01% 34,081 SH
8 AMAZON COM INC AMZN 023135106 $20.8M 2.68% 87,304 SH
9 COSTCO WHOLESALE CORPORATION COST 22160K105 $20.3M 2.62% 21,749 SH
10 META PLATFORMS INC META 30303M102 $13.8M 1.77% 24,457 SH
11 VANGUARD INDEX FDS VTV 922908744 $13.5M 1.73% 61,837 SH
12 ISHARES TR IBDR 46435GAA0 $13.3M 1.72% 550,123 PRN
13 ARCH CAP GROUP LTD ACGL G0450A105 $13.1M 1.69% 135,252 SH
14 VANGUARD STAR FDS VXUS 921909768 $12.8M 1.65% 149,816 SH
15 ISHARES TR IBDS 46435UAA9 $12.6M 1.62% 518,768 PRN
16 VANGUARD SPECIALIZED FUNDS VIG 921908844 $10.7M 1.38% 45,362 SH
17 JOHNSON & JOHNSON JNJ 478160104 $10.5M 1.35% 41,370 SH
18 ISHARES TR IBDT 46435U515 $9.9M 1.28% 392,466 SH
19 ISHARES TR IWF 464287614 $9.0M 1.16% 72,308 SH
20 VANGUARD INDEX FDS VUG 922908736 $8.8M 1.14% 102,433 SH
21 ISHARES TR IBTH 46436E841 $7.8M 1.00% 347,587 SH
22 ISHARES TR IBTI 46436E833 $7.7M 0.99% 348,639 SH
23 AMERICAN EXPRESS CO AXP 025816109 $7.3M 0.94% 21,693 SH
24 MARKEL GROUP INC MKL 570535104 $7.3M 0.93% 3,718 SH
25 ECOLAB INC ECL 278865100 $6.3M 0.81% 22,576 SH
26 WALMART INC WMT 931142103 $6.1M 0.79% 53,964 SH
27 VANGUARD INTL EQUITY INDEX F VT 922042742 $6.1M 0.78% 38,729 SH
28 BERKSHIRE HATHAWAY INC DEL BRK.A 084670108 $6.0M 0.77% 8 SH
29 ABBVIE INC ABBV 00287Y109 $5.8M 0.74% 22,876 SH
30 BROADRIDGE FINL SOLUTIONS IN BR 11133T103 $5.6M 0.73% 41,228 SH
31 BOOKING HOLDINGS INC BKNG 09857L108 $5.6M 0.72% 31,513 SH
32 STARBUCKS CORP SBUX 855244109 $5.3M 0.69% 52,236 SH
33 VANGUARD INTL EQUITY INDEX F VEU 922042775 $4.9M 0.63% 58,087 SH
34 VISA INC V 92826C839 $4.8M 0.62% 13,994 SH
35 MICROSOFT CORP MSFT 594918104 $4.5M 0.58% 12,157 SH
36 SCHWAB STRATEGIC TR SCHD 808524797 $4.2M 0.55% 133,778 SH
37 STATE STR SPDR S&P 500 ETF T SPY 78462F103 $4.2M 0.54% 5,574 SH
38 UNION PAC CORP UNP 907818108 $3.9M 0.50% 14,361 SH
39 ISHARES TR IBTJ 46436E825 $3.7M 0.48% 170,987 SH
40 VANGUARD WHITEHALL FDS VYM 921946406 $3.4M 0.44% 21,537 SH
41 AUTOMATIC DATA PROCESSING IN ADP 053015103 $3.2M 0.41% 14,201 SH
42 MERCK & CO INC MRK 58933Y105 $3.1M 0.40% 24,202 SH
43 DISNEY WALT CO DIS 254687106 $2.9M 0.37% 29,696 SH
44 COCA COLA CO KO 191216100 $2.7M 0.35% 33,751 SH
45 JPMORGAN CHASE & CO JPM 46625H100 $2.6M 0.33% 7,890 SH
46 ISHARES TR IBDU 46436E205 $2.5M 0.32% 107,203 SH
47 NVIDIA CORPORATION NVDA 67066G104 $2.3M 0.30% 11,645 SH
48 PEPSICO INC PEP 713448108 $2.3M 0.29% 16,852 SH
49 HOME DEPOT INC HD 437076102 $2.2M 0.29% 6,320 SH
50 CATERPILLAR INC CAT 149123101 $2.2M 0.28% 2,026 SH
Filing History
Period Filed AUM Holdings Accession
2026-06-30 2026-08-03 $777.0M 168 0001631408-26-000003
2026-03-31 2026-04-28 $707.4M 166 0001631408-26-000002
2025-12-31 2026-02-13 $734.2M 163 0001631408-26-000001
Filer Information
Address
405 LEXINGTON AVE., SUITE 37A
NEW YORK, NY 10174
Phone
(212) 883-9595
Filing Manager
Northstar Group, Inc.
NEW YORK, NY
Signatory
Henry C. Asher
President