Institutional Manager · CIK 0001399794
Choate Investment Advisors
BOSTON, MA · File #028-12523
Latest AUM
$5.10B
Positions
444
Top-10 Concentration
72.6%
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 | VANGUARD INTL EQUITY INDEX F | 922042775 | +2,955,518 | +$217.4M | +$45,451 |
| REDUCE | ISHARES TR | 464287200 | -162,200 | -$111.1M | +$40.7M |
| REDUCE | VANGUARD INDEX FDS | 922908363 | -58,949 | -$37.0M | +$1.5M |
| ADD | ISHARES TR | 464288612 | +214,866 | +$23.1M | -$163,792 |
| NEW | VANGUARD STAR FDS | 921909768 | +288,569 | +$21.8M | $0 |
| REDUCE | HARRIS OAKMARK ETF TRUST | 41456U106 | -645,901 | -$18.3M | +$15.3M |
| NEW | VANGUARD WORLD FD | 921910873 | +58,067 | +$14.6M | $0 |
| REDUCE | FISERV INC | FISV | -161,968 | -$10.9M | -$12.3M |
| ADD | VANGUARD INDEX FDS | 922908769 | +25,549 | +$8.6M | +$1.0M |
| ADD | UBER TECHNOLOGIES INC | UBER | +86,540 | +$7.1M | -$73,799 |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 2025444 pos · $5.10B
- 13F HOLDINGS REPORTQ/E Sep 2025424 pos · $4.83B
- 13F HOLDINGS REPORTQ/E Jun 2025477 pos · $4.61B
- 13F HOLDINGS REPORTQ/E Mar 2025395 pos · $4.02B
- 13F HOLDINGS REPORTQ/E Dec 2024402 pos · $4.16B
- 13F HOLDINGS REPORTQ/E Sep 2024383 pos · $3.92B
- 13F HOLDINGS REPORTQ/E Jun 2024377 pos · $3.81B
- 13F HOLDINGS REPORTQ/E Mar 2024405 pos · $3.71B
- 13F HOLDINGS REPORTQ/E Dec 2023431 pos · $2.55B
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | ISHARES TR | 464287200 | 2,443,219 | $1.67B | 38.10% |
| 2 | HARRIS OAKMARK ETF TRUST | 41456U106 | 9,026,210 | $256.0M | 5.83% |
| 3 | ISHARES TR | 464288612 | 2,097,512 | $225.2M | 5.13% |
| 4 | VANGUARD INTL EQUITY INDEX F | 922042775 | 2,976,271 | $218.9M | 4.98% |
| 5 | APPLE INC | AAPL | 623,374 | $169.5M | 3.86% |
| 6 | MICROSOFT CORP | MSFT | 325,368 | $157.4M | 3.58% |
| 7 | SPDR SERIES TRUST | 78468R796 | 2,381,460 | $133.8M | 3.05% |
| 8 | ISHARES TR | 464288414 | 1,165,513 | $124.8M | 2.84% |
| 9 | NVIDIA CORPORATION | NVDA | 646,076 | $120.5M | 2.74% |
| 10 | AMAZON COM INC | AMZN | 474,367 | $109.5M | 2.49% |
| 11 | ALPHABET INC | GOOG | 299,810 | $93.8M | 2.14% |
| 12 | ALPHABET INC | GOOG | 222,127 | $69.7M | 1.59% |
| 13 | SPDR S&P 500 ETF TR | SPY | 92,651 | $63.2M | 1.44% |
| 14 | VANGUARD INDEX FDS | 922908769 | 168,906 | $56.6M | 1.29% |
| 15 | ELI LILLY & CO | LLY | 48,185 | $51.8M | 1.18% |
| 16 | HOME DEPOT INC | HD | 147,375 | $50.7M | 1.15% |
| 17 | WALMART INC | WMT | 431,661 | $48.1M | 1.09% |
| 18 | JPMORGAN CHASE & CO. | VYLD | 139,509 | $45.0M | 1.02% |
| 19 | TJX COS INC NEW | 872540109 | 275,456 | $42.3M | 0.96% |
| 20 | TAIWAN SEMICONDUCTOR MFG LTD | 874039100 | 138,761 | $42.2M | 0.96% |