Institutional Manager · CIK 0001657703
Wind River Trust Co
Jackson, WY · File #028-21183
Latest AUM
$267.8M
Positions
10
Top-10 Concentration
100.0%
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 |
|---|---|---|---|---|---|
| REDUCE | VANGUARD INTL EQUITY INDEX F | 922042742 | -64,460 | -$9.1M | +$2.3M |
| REDUCE | SPDR S&P 500 ETF TR | SPY | -655 | -$446,658 | +$807,038 |
| REDUCE | ISHARES TR | 46432F842 | 0 | $0 | +$45,586 |
| REDUCE | ISHARES TR | 464288257 | 0 | $0 | +$306,189 |
| REDUCE | VANGUARD TAX-MANAGED FDS | 921943858 | 0 | $0 | +$517,586 |
| REDUCE | EXCHANGE LISTED FDS TR | 30151E517 | 0 | $0 | +$79,598 |
| REDUCE | ISHARES TR | 464287598 | 0 | $0 | +$1.6M |
| REDUCE | ISHARES TR | 464287689 | 0 | $0 | +$981,173 |
| REDUCE | VANGUARD INDEX FDS | 922908736 | 0 | $0 | +$157,327 |
| REDUCE | VANGUARD INDEX FDS | 922908769 | 0 | $0 | +$135,091 |
Filing History
- 13F HOLDINGS REPORTQ/E Dec 202510 pos · $267.8M
- 13F HOLDINGS REPORTQ/E Sep 202510 pos · $270.4M
- 13F HOLDINGS REPORTQ/E Jun 20259 pos · $249.4M
- 13F HOLDINGS REPORTQ/E Mar 20259 pos · $233.1M
- 13F HOLDINGS REPORTQ/E Dec 20249 pos · $254.3M
- 13F HOLDINGS REPORTQ/E Sep 20249 pos · $259.9M
- 13F HOLDINGS REPORTQ/E Jun 20249 pos · $246.6M
- 13F HOLDINGS REPORTQ/E Mar 20249 pos · $274.8M
- 13F HOLDINGS REPORTQ/E Dec 20239 pos · $232.0M
Top 10 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | VANGUARD INTL EQUITY INDEX F | 922042742 | 637,337 | $89.9M | 33.57% |
| 2 | ISHARES TR | 464287598 | 233,705 | $49.2M | 18.36% |
| 3 | ISHARES TR | 464287689 | 124,042 | $48.0M | 17.92% |
| 4 | SPDR S&P 500 ETF TR | SPY | 50,618 | $34.5M | 12.89% |
| 5 | ISHARES TR | 464288257 | 94,212 | $13.3M | 4.98% |
| 6 | VANGUARD TAX-MANAGED FDS | 921943858 | 202,975 | $12.7M | 4.73% |
| 7 | VANGUARD INDEX FDS | 922908736 | 19,070 | $9.3M | 3.47% |
| 8 | VANGUARD INDEX FDS | 922908769 | 19,027 | $6.4M | 2.38% |
| 9 | EXCHANGE LISTED FDS TR | 30151E517 | 98,892 | $2.6M | 0.99% |
| 10 | ISHARES TR | 46432F842 | 21,203 | $1.9M | 0.71% |