Auto-Owners Insurance Co — 13F Holdings & Portfolio
CIK 1964189 · latest 13F-HR filed 2026-10-15
Auto-Owners Insurance Co manages $3.20B in 13F-reported U.S. long-equity assets across 144 reported positions as of its 2026-09-30 13F-HR filing. Its largest disclosed positions are SPDW (11.86%), ITOT (8.41%), EFV (5.81%). Quarter over quarter (versus its 2026-06-30 filing) the fund opened 2 new positions and exited 19; 12 existing positions rose in reported value and 42 fell.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
Long-equity book
Distinct positions
Filed 2026-10-15
vs 2026-06-30
Portfolio charts
Latest quarter's book, what changed, and how the portfolio has evolved across filings.
Portfolio map
Q3 26Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.
Sector mix
% of 13F valueSectors from each company's SIC code; funds and ETFs grouped separately.
Biggest buys and sells
Q2 26 → Q3 26Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.
13F assets and positions
4 quartersTotal reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.
Top positions over time
reported valueThe eight largest current positions, valued at each quarter end.
Concentration
top 10 = 63.6%Cumulative share of the portfolio held in the largest N positions.
| Name | Title / Status | Ownership | Type |
|---|
Quarter-over-quarter changes
Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.
Top Adds (vs prior quarter)
- MICROSOFT CORP$13.1M +32.8%
- META PLATFORMS INC$8.2M +10.7%
- BECTON DICKINSON & CO$5.0M +18.3%
- BAXTER INTL INC$2.8M +12.6%
- HONDA MOTOR CO LTD$755.0K +16.6%
Top Trims
- SPDR SERIES TRUST-$338.0M -67.2%
- SPDR INDEX SHS FDS-$192.5M -25.1%
- ISHARES TR-$138.9M -27.8%
- ALPHABET INC-$88.5M -54.1%
- ISHARES TR-$78.5M -36.6%
Exited Positions
- US BANCORP$37.8M
- TRUIST FINL CORP$14.3M
- AVALONBAY CMNTYS INC$12.3M
- TORONTO DOMINION BK ONT$5.1M
- WORKDAY INC$4.9M
Auto-Owners Insurance Co Holdings (2026-09-30)
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | SPDR INDEX SHS FDS | SPDW | 78463X889 | $379.5M | 11.86% | 7,558,145 | SH |
| 2 | ISHARES TR | ITOT | 464287150 | $269.1M | 8.41% | 1,618,144 | SH |
| 3 | ISHARES TR | EFV | 464288877 | $185.9M | 5.81% | 2,348,500 | SH |
| 4 | ISHARES TR | IDEV | 46435G326 | $119.5M | 3.74% | 1,336,000 | SH |
| 5 | SPDR INDEX SHS FDS | SPDW | 78463X889 | $115.5M | 3.61% | 2,300,000 | SH |
| 6 | BERKSHIRE HATHAWAY INC DEL | BRK.A | 084670108 | $108.3M | 3.39% | 145 | SH |
| 7 | SPDR SERIES TRUST | XNTK | 78464A102 | $108.0M | 3.38% | 282,650 | SH |
| 8 | SCHWAB STRATEGIC TR | FNDF | 808524755 | $95.0M | 2.97% | 1,766,000 | SH |
| 9 | SPDR INDEX SHS FDS | SPDW | 78463X889 | $80.0M | 2.50% | 1,594,000 | SH |
| 10 | META PLATFORMS INC | META | 30303M102 | $68.6M | 2.15% | 94,663 | SH |
| 11 | VANGUARD INDEX FDS | VB | 922908751 | $66.2M | 2.07% | 232,528 | SH |
| 12 | VANGUARD TAX-MANAGED FDS | VEA | 921943858 | $64.4M | 2.01% | 912,750 | SH |
| 13 | VANGUARD WHITEHALL FDS | VYM | 921946406 | $64.1M | 2.00% | 412,700 | SH |
| 14 | SPDR SERIES TRUST | SPYD | 78468R788 | $62.2M | 1.94% | 1,369,700 | SH |
| 15 | ISHARES TR | ITOT | 464287150 | $61.9M | 1.94% | 372,550 | SH |
| 16 | ALPHABET INC | GOOG | 02079K107 | $55.5M | 1.74% | 162,974 | SH |
| 17 | JOHNSON & JOHNSON | JNJ | 478160104 | $53.8M | 1.68% | 203,162 | SH |
| 18 | AMAZON COM INC | AMZN | 023135106 | $49.9M | 1.56% | 200,463 | SH |
| 19 | SPDR SERIES TRUST | SPMD | 78464A847 | $47.3M | 1.48% | 750,000 | SH |
| 20 | DOW HLDGS INC | DOW | 260557103 | $44.4M | 1.39% | 1,611,000 | SH |
| 21 | MICROSOFT CORP | MSFT | 594918104 | $44.0M | 1.38% | 85,881 | SH |
| 22 | ISHARES TR | IUSV | 464287663 | $41.4M | 1.29% | 374,000 | SH |
| 23 | PEPSICO INC | PEP | 713448108 | $40.0M | 1.25% | 315,378 | SH |
| 24 | POLARIS INC | PII | 731068102 | $37.3M | 1.17% | 715,000 | SH |
| 25 | SPDR SERIES TRUST | XNTK | 78464A102 | $35.9M | 1.12% | 93,900 | SH |
| 26 | ENTERPRISE PRODS PARTNERS L | EPD | 293792107 | $35.6M | 1.11% | 1,000,000 | SH |
| 27 | ISHARES TR | IUSV | 464287663 | $30.3M | 0.95% | 274,000 | SH |
| 28 | BLUE OWL TECHNOLOGY FIN CORP | OTF | 095924106 | $30.3M | 0.95% | 3,083,763 | SH |
| 29 | ISHARES TR | ITOT | 464287150 | $29.1M | 0.91% | 175,000 | SH |
| 30 | SCHWAB STRATEGIC TR | FNDF | 808524755 | $27.9M | 0.87% | 519,000 | SH |
| 31 | BECTON DICKINSON & CO | BDX | 075887109 | $27.7M | 0.87% | 154,935 | SH |
| 32 | ISHARES TR | EFV | 464288877 | $26.1M | 0.82% | 330,000 | SH |
| 33 | VANGUARD WHITEHALL FDS | VYM | 921946406 | $25.9M | 0.81% | 167,000 | SH |
| 34 | ISHARES TR | DGRO | 46434V621 | $25.6M | 0.80% | 339,500 | SH |
| 35 | VANGUARD WORLD FD | VCR | 92204A108 | $25.2M | 0.79% | 68,700 | SH |
| 36 | BAXTER INTL INC | BAX | 071813109 | $25.2M | 0.79% | 1,050,000 | SH |
| 37 | ISHARES TR | IUSV | 464287663 | $23.9M | 0.75% | 216,000 | SH |
| 38 | ISHARES TR | EFV | 464288877 | $23.3M | 0.73% | 295,000 | SH |
| 39 | SCHWAB STRATEGIC TR | FNDF | 808524755 | $22.5M | 0.70% | 418,000 | SH |
| 40 | VANGUARD WHITEHALL FDS | VYM | 921946406 | $22.4M | 0.70% | 144,500 | SH |
| 41 | SPDR SERIES TRUST | XNTK | 78464A102 | $21.1M | 0.66% | 55,200 | SH |
| 42 | GE HEALTHCARE TECHNOLOGIES I | GEHC | 36266G107 | $19.1M | 0.60% | 291,781 | SH |
| 43 | SPDR SERIES TRUST | SPYD | 78468R788 | $19.1M | 0.60% | 420,000 | SH |
| 44 | VANGUARD INTL EQUITY INDEX F | VWO | 922042858 | $18.6M | 0.58% | 313,000 | SH |
| 45 | SELECT SECTOR SPDR TR | XLRE | 81369Y860 | $16.4M | 0.51% | 401,531 | SH |
| 46 | ISHARES INC | IEMG | 46434G103 | $16.2M | 0.51% | 200,000 | SH |
| 47 | CARNIVAL CORP LTD | CCL | G2004J103 | $16.0M | 0.50% | 650,000 | SH |
| 48 | META PLATFORMS INC | META | 30303M102 | $13.9M | 0.44% | 19,200 | SH |
| 49 | GE VERNOVA INC | GEV | 36828A101 | $13.2M | 0.41% | 13,940 | SH |
| 50 | SPDR SERIES TRUST | SPYD | 78468R788 | $12.3M | 0.38% | 270,000 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-09-30 | 2026-10-15 | $3.20B | 144 | 0001964189-26-000005 |
| 2026-06-30 | 2026-07-15 | $4.43B | 170 | 0001964189-26-000004 |
| 2026-03-31 | 2026-04-10 | $4.78B | 188 | 0001964189-26-000003 |
| 2025-12-31 | 2026-03-09 | $4.76B | 181 | 0001964189-26-000002 |
LANSING, MI 48917-3968