Institutional Manager · CIK 0001631408
Northstar Group, Inc.
NEW YORK, NY · File #028-16372
Latest AUM
$734.2M
Positions
163
Top-10 Concentration
64.4%
Filings
9
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| EXITED | ISHARES TR | 46434VBD1 | -333,614 | -$8.4M | $0 |
| ADD | ISHARES TR | 46435U515 | +151,168 | +$3.8M | -$10,774 |
| ADD | BERKSHIRE HATHAWAY INC DEL | BRK-A | +7,473 | +$3.8M | -$20,881 |
| ADD | ABBVIE INC | ABBV | +15,875 | +$3.6M | -$25,809 |
| ADD | ISHARES TR | 46435UAA9 | +82,492 | +$2.0M | -$22,369 |
| ADD | ISHARES TR | 46436E825 | +90,711 | +$2.0M | -$210 |
| ADD | SPDR SERIES TRUST | 78468R663 | +21,512 | +$2.0M | -$189,961 |
| ADD | ALPHABET INC | GOOG | +6,179 | +$1.9M | +$7.2M |
| NEW | ISHARES TR | 46436E205 | +80,046 | +$1.9M | $0 |
| ADD | VANGUARD INDEX FDS | 922908769 | +5,309 | +$1.8M | +$1.6M |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 2025163 pos · $734.2M
- 13F HOLDINGS REPORTQ/E Sep 2025161 pos · $686.6M
- 13F HOLDINGS REPORTQ/E Jun 2025161 pos · $647.5M
- 13F HOLDINGS REPORTQ/E Mar 2025150 pos · $616.8M
- 13F HOLDINGS REPORTQ/E Dec 2024154 pos · $597.1M
- 13F HOLDINGS REPORTQ/E Sep 2024157 pos · $574.1M
- 13F HOLDINGS REPORTQ/E Jun 2024147 pos · $529.0M
- 13F HOLDINGS REPORTQ/E Mar 2024150 pos · $509.1M
- 13F HOLDINGS REPORTQ/E Dec 2023142 pos · $421.8M
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | BERKSHIRE HATHAWAY INC DEL | BRK-A | 239,578 | $120.4M | 18.24% |
| 2 | VANGUARD INDEX FDS | 922908769 | 236,273 | $79.2M | 12.00% |
| 3 | SPDR SERIES TRUST | 78468R663 | 534,815 | $48.9M | 7.40% |
| 4 | APPLE INC | AAPL | 153,648 | $41.8M | 6.33% |
| 5 | ALPHABET INC | GOOG | 108,017 | $33.9M | 5.14% |
| 6 | ALPHABET INC | GOOG | 74,998 | $23.5M | 3.56% |
| 7 | VANGUARD INDEX FDS | 922908363 | 34,701 | $21.8M | 3.30% |
| 8 | AMAZON COM INC | AMZN | 88,186 | $20.4M | 3.08% |
| 9 | COSTCO WHSL CORP NEW | 22160K105 | 21,879 | $18.9M | 2.86% |
| 10 | META PLATFORMS INC | META | 24,812 | $16.4M | 2.48% |
| 11 | ISHARES TR | 46435GAA0 | 542,210 | $13.1M | 1.99% |
| 12 | ARCH CAP GROUP LTD | G0450A105 | 130,193 | $12.5M | 1.89% |
| 13 | ISHARES TR | 46435UAA9 | 455,534 | $11.1M | 1.68% |
| 14 | VANGUARD INDEX FDS | 922908744 | 56,940 | $10.9M | 1.65% |
| 15 | VANGUARD STAR FDS | 921909768 | 127,688 | $9.6M | 1.46% |
| 16 | VANGUARD SPECIALIZED FUNDS | 921908844 | 43,752 | $9.6M | 1.46% |
| 17 | ISHARES TR | 464287614 | 18,652 | $8.8M | 1.34% |
| 18 | JOHNSON & JOHNSON | JNJ | 41,692 | $8.6M | 1.31% |
| 19 | VANGUARD INDEX FDS | 922908736 | 17,352 | $8.5M | 1.28% |
| 20 | ISHARES TR | 46435U515 | 316,889 | $8.1M | 1.22% |