Institutional Manager · CIK 0001964189
Auto-Owners Insurance Co
LANSING, MI · File #028-23026
Latest AUM
$3.87B
Positions
187
Top-10 Concentration
59.3%
Filings
9
Portfolio Value Over Time
2023-12
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
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 | BERKSHIRE HATHAWAY INC DEL | 084670702 | -9,435 | -$7.12B | +$7.22B |
| ADD | ISHARES TR | 46434G103 | +2,120,204 | +$308.8M | +$30.8M |
| REDUCE | DOVER CORP | 260557103 | -1,607,100 | -$268.1M | +$226.1M |
| ADD | ISHARES TR | 464287150 | +3,087,980 | +$209.5M | -$16.8M |
| REDUCE | PROCTER AND GAMBLE CO | 731068102 | -1,010,231 | -$155.2M | +$117.0M |
| ADD | ISHARES TR | 464288877 | +1,931,000 | +$154.8M | +$4.9M |
| REDUCE | C H ROBINSON WORLDWIDE INC | 143658300 | -640,600 | -$84.8M | +$67.8M |
| ADD | META PLATFORMS INC | 58933Y105 | +107,850 | +$79.2M | +$4.8M |
| ADD | ALPHABET INC | 02079K107 | +322,996 | +$78.7M | +$2.5M |
| ADD | POLARIS INC | 693475105 | +1,030,000 | +$59.9M | -$641,450 |
Filing History
- 13F HOLDINGS REPORT (Amended)Q/E Sep 2025187 pos · $3.87B
- 13F HOLDINGS REPORTQ/E Sep 2025187 pos · $3.87B
- 13F HOLDINGS REPORTQ/E Jun 2025188 pos · $4.48B
- 13F HOLDINGS REPORTQ/E Mar 2025185 pos · $3.78B
- 13F HOLDINGS REPORTQ/E Dec 2024182 pos · $4.40B
- 13F HOLDINGS REPORTQ/E Sep 2024198 pos · $4.09B
- 13F HOLDINGS REPORTQ/E Jun 2024196 pos · $3.79B
- 13F HOLDINGS REPORTQ/E Mar 2024190 pos · $3.78B
- 13F HOLDINGS REPORTQ/E Dec 2023195 pos · $2.99B
Top 20 Holdings — Sep 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | SPDR INDEX SHS FDS | 78463X889 | 10,823,666 | $463.1M | 13.64% |
| 2 | ISHARES TR | 464287150 | 2,480,204 | $361.2M | 10.64% |
| 3 | SPDR SERIES TRUST | 78464A102 | 1,158,400 | $315.4M | 9.28% |
| 4 | ISHARES TR | 464288877 | 3,338,000 | $226.4M | 6.67% |
| 5 | ISHARES TR | 46435G326 | 2,226,000 | $178.5M | 5.25% |
| 6 | SPDR INDEX SHS FDS | 78463X889 | 2,563,000 | $109.7M | 3.23% |
| 7 | BERKSHIRE HATHAWAY INC DEL | 084670108 | 145 | $109.4M | 3.22% |
| 8 | ALPHABET INC | 02079K107 | 360,996 | $87.9M | 2.59% |
| 9 | META PLATFORMS INC | 30303M102 | 115,150 | $84.6M | 2.49% |
| 10 | SPDR INDEX SHS FDS | 78463X889 | 1,844,000 | $78.9M | 2.32% |
| 11 | SCHWAB STRATEGIC TR | 808524755 | 1,766,000 | $75.9M | 2.23% |
| 12 | AMAZON COM INC | 023135106 | 290,300 | $63.7M | 1.88% |
| 13 | POLARIS INC | 731068102 | 1,035,000 | $60.2M | 1.77% |
| 14 | SPDR SERIES TRUST | 78468R788 | 1,360,000 | $59.3M | 1.74% |
| 15 | VANGUARD WHITEHALL FDS | 921946406 | 412,700 | $58.2M | 1.71% |
| 16 | VANGUARD INDEX FDS | 922908751 | 216,428 | $55.0M | 1.62% |
| 17 | VANGUARD TAX-MANAGED FDS | 921943858 | 912,750 | $54.7M | 1.61% |
| 18 | JOHNSON & JOHNSON | 478160104 | 286,440 | $53.1M | 1.56% |
| 19 | MICROSOFT CORP | 594918104 | 89,453 | $46.3M | 1.36% |
| 20 | ISHARES TR | 464287150 | 307,550 | $44.8M | 1.32% |