Institutional Manager · CIK 0001692252
ARTHUR M. COHEN & ASSOCIATES, LLC
NORTHBROOK, IL · File #028-17597
Latest AUM
$612.5M
Positions
129
Top-10 Concentration
65.9%
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 |
|---|---|---|---|---|---|
| ADD | NETFLIX INC | NFLX | +108,974 | +$10.2M | -$13.4M |
| EXITED | CHIPOTLE MEXICAN GRILL INC | 169656105 | -54,135 | -$2.1M | $0 |
| REDUCE | DANAHER CORPORATION | 235851102 | -6,336 | -$1.5M | +$4.9M |
| ADD | SPDR S&P 500 ETF TR | SPY | +1,691 | +$1.2M | +$706,330 |
| ADD | ASML HOLDING N V | ASMLF | +802 | +$858,028 | +$79,889 |
| ADD | GE AEROSPACE | 369604301 | +2,735 | +$842,462 | +$37,030 |
| ADD | BERKSHIRE HATHAWAY INC DEL | BRK-A | +1,526 | +$767,097 | -$3,837 |
| REDUCE | ALPHABET INC | GOOG | -2,143 | -$672,478 | +$9.2M |
| ADD | INTERNATIONAL BUSINESS MACHS | INTR | +2,004 | +$593,590 | +$46,777 |
| REDUCE | APPLE INC | AAPL | -2,042 | -$555,150 | +$2.9M |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 2025129 pos · $612.5M
- 13F HOLDINGS REPORTQ/E Sep 2025127 pos · $594.8M
- 13F HOLDINGS REPORTQ/E Jun 2025125 pos · $566.2M
- 13F HOLDINGS REPORTQ/E Mar 2025125 pos · $521.6M
- 13F HOLDINGS REPORTQ/E Dec 2024135 pos · $564.4M
- 13F HOLDINGS REPORTQ/E Sep 2024140 pos · $553.5M
- 13F HOLDINGS REPORTQ/E Jun 2024140 pos · $545.3M
- 13F HOLDINGS REPORTQ/E Mar 2024134 pos · $473.4M
- 13F HOLDINGS REPORTQ/E Dec 2023128 pos · $390.1M
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | NVIDIA CORPORATION | NVDA | 351,025 | $65.5M | 11.56% |
| 2 | APPLE INC | AAPL | 168,414 | $45.8M | 8.08% |
| 3 | ALPHABET INC | GOOG | 128,180 | $40.2M | 7.10% |
| 4 | INVESCO EXCH TRADED FD TR II | IVZ | 149,171 | $37.7M | 6.66% |
| 5 | BERKSHIRE HATHAWAY INC DEL | BRK-A | 70,956 | $35.7M | 6.30% |
| 6 | DANAHER CORPORATION | 235851102 | 152,666 | $35.0M | 6.17% |
| 7 | SPDR S&P 500 ETF TR | SPY | 46,064 | $31.4M | 5.55% |
| 8 | AMAZON COM INC | AMZN | 132,224 | $30.5M | 5.39% |
| 9 | MICROSOFT CORP | MSFT | 56,698 | $27.4M | 4.84% |
| 10 | ELI LILLY & CO | LLY | 22,487 | $24.2M | 4.27% |
| 11 | COSTCO WHSL CORP NEW | 22160K105 | 16,277 | $14.0M | 2.48% |
| 12 | VANGUARD WHITEHALL FDS | 921946406 | 97,090 | $13.9M | 2.46% |
| 13 | BERKSHIRE HATHAWAY INC DEL | BRK-A | 16 | $12.1M | 2.13% |
| 14 | BLACKROCK INC | BLK | 11,043 | $11.8M | 2.09% |
| 15 | NETFLIX INC | NFLX | 121,068 | $11.4M | 2.00% |
| 16 | CROWDSTRIKE HLDGS INC | CRWD | 19,015 | $8.9M | 1.57% |
| 17 | PROGRESSIVE CORP | 743315103 | 32,815 | $7.5M | 1.32% |
| 18 | META PLATFORMS INC | META | 11,222 | $7.4M | 1.31% |
| 19 | SHOPIFY INC | SHOP | 44,176 | $7.1M | 1.26% |
| 20 | RTX CORPORATION | RTX | 37,275 | $6.8M | 1.21% |