OSTRUM ASSET MANAGEMENT — 13F Holdings & Portfolio
CIK 1767945 · latest 13F-HR filed 2026-05-14
OSTRUM ASSET MANAGEMENT manages $1.78B in 13F-reported U.S. long-equity assets across 562 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are NVDA (6.33%), GOOGL (4.14%), AAPL (4.11%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 15 new positions, exited 25, added to 228, and trimmed 283.
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.
$1.78B
Long-equity book
562
Distinct positions
2026-03-31
Filed 2026-05-14
+15 / −25 / ↑228 / ↓283
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- CUMMINS INC$35.9M +2018.2%
- SCHWAB CHARLES CORP$30.6M +1045.8%
- HONEYWELL INTL INC$28.6M +3411.6%
- ROSS STORES INC$28.2M +2735.3%
- ILLUMINA INC$28.2M +15269.4%
Top Trims
- BROADCOM INC-$75.7M -85.4%
- MICROSOFT CORP-$68.4M -70.6%
- AMAZON COM INC-$35.9M -39.4%
- OREILLY AUTOMOTIVE INC-$30.7M -90.8%
- CAPITAL ONE FINL CORP-$28.6M -96.3%
New Positions
- SHOPIFY INC$30.3M
- NEBIUS GROUP N.V.$1.4M
- AMCOR PLC$1.4M
- GAP INC$992.2K
- SANMINA CORP$902.3K
Exited Positions
- TOPBUILD CORP$19.4M
- EQUITY LIFESTYLE PPTYS INC C$2.3M
- AMCOR PLC$1.3M
- PERFORMANCE FOOD GROUP CO$1.1M
- CADENCE BANK$996.0K
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 | NVIDIA CORPORATION | NVDA | 67066G104 | $112.7M | 6.33% | 646,412 | SH |
| 2 | ALPHABET INC | GOOGL | 02079K305 | $73.7M | 4.14% | 256,420 | SH |
| 3 | APPLE INC | AAPL | 037833100 | $73.2M | 4.11% | 288,500 | SH |
| 4 | APPLIED MATLS INC | AMAT | 038222105 | $72.6M | 4.08% | 212,465 | SH |
| 5 | ELI LILLY & CO | LLY | 532457108 | $68.1M | 3.83% | 74,093 | SH |
| 6 | AMAZON COM INC | AMZN | 023135106 | $55.2M | 3.10% | 264,893 | SH |
| 7 | CUMMINS INC | CMI | 231021106 | $37.7M | 2.12% | 70,116 | SH |
| 8 | JPMORGAN CHASE & CO | JPM | 46625H100 | $37.2M | 2.09% | 126,438 | SH |
| 9 | GE AEROSPACE | GE | 369604301 | $37.0M | 2.08% | 130,327 | SH |
| 10 | VISA INC | V | 92826C839 | $36.4M | 2.04% | 120,485 | SH |
| 11 | EATON CORP PLC | ETN | G29183103 | $35.3M | 1.98% | 98,698 | SH |
| 12 | SCHWAB CHARLES CORP | SCHW | 808513105 | $33.5M | 1.88% | 356,533 | SH |
| 13 | SHOPIFY INC | SHOP | 82509L107 | $30.3M | 1.70% | 255,680 | SH |
| 14 | HONEYWELL INTL INC | HON | 438516106 | $29.4M | 1.65% | 130,267 | SH |
| 15 | ROSS STORES INC | ROST | 778296103 | $29.3M | 1.64% | 135,119 | SH |
| 16 | MICROSOFT CORP | MSFT | 594918104 | $28.6M | 1.60% | 77,162 | SH |
| 17 | NUCOR CORP | NUE | 670346105 | $28.5M | 1.60% | 168,444 | SH |
| 18 | ILLUMINA INC | ILMN | 452327109 | $28.4M | 1.59% | 230,270 | SH |
| 19 | VULCAN MATLS CO | VMC | 929160109 | $27.8M | 1.56% | 102,226 | SH |
| 20 | META PLATFORMS INC | META | 30303M102 | $27.3M | 1.53% | 47,771 | SH |
| 21 | BERKSHIRE HATHAWAY INC DEL | BRK.B | 084670702 | $27.0M | 1.52% | 56,330 | SH |
| 22 | SYNOPSYS INC | SNPS | 871607107 | $26.3M | 1.47% | 66,240 | SH |
| 23 | LINCOLN ELEC HLDGS INC | LECO | 533900106 | $26.0M | 1.46% | 104,210 | SH |
| 24 | UNITED RENTALS INC | URI | 911363109 | $25.6M | 1.44% | 35,172 | SH |
| 25 | ISHARES TR | INDA | 46429B598 | $23.9M | 1.34% | 520,000 | SH |
| 26 | MONOLITHIC PWR SYS INC | MPWR | 609839105 | $22.7M | 1.27% | 20,756 | SH |
| 27 | INTERCONTINENTAL EXCHANGE IN | ICE | 45866F104 | $22.2M | 1.25% | 141,450 | SH |
| 28 | JOHNSON & JOHNSON | JNJ | 478160104 | $13.5M | 0.76% | 55,262 | SH |
| 29 | ALPHABET INC | GOOG | 02079K107 | $12.9M | 0.73% | 45,120 | SH |
| 30 | BROADCOM INC | AVGO | 11135F101 | $12.9M | 0.73% | 41,741 | SH |
| 31 | KOSMOS ENERGY LTD | KOS | 500688106 | $11.1M | 0.63% | 4,008,525 | SH |
| 32 | MCDONALDS CORP | MCD | 580135101 | $9.7M | 0.54% | 31,127 | SH |
| 33 | COCA-COLA EUROPACIFIC PARTNE | CCEP | G25839104 | $8.5M | 0.48% | 93,595 | SH |
| 34 | COCA COLA CO | KO | 191216100 | $8.4M | 0.47% | 110,698 | SH |
| 35 | WASTE MGMT INC DEL | WM | 94106L109 | $7.7M | 0.43% | 33,687 | SH |
| 36 | CISCO SYS INC | CSCO | 17275R102 | $7.3M | 0.41% | 93,954 | SH |
| 37 | PROCTER & GAMBLE CO | PG | 742718109 | $7.2M | 0.41% | 50,145 | SH |
| 38 | CBOE GLOBAL MKTS INC | CBOE | 12503M108 | $7.0M | 0.39% | 25,005 | SH |
| 39 | ABBVIE INC | ABBV | 00287Y109 | $6.5M | 0.37% | 29,986 | SH |
| 40 | CENCORA INC | COR | 03073E105 | $6.1M | 0.34% | 19,382 | SH |
| 41 | TESLA INC | TSLA | 88160R101 | $6.0M | 0.34% | 16,099 | SH |
| 42 | CME GROUP INC | CME | 12572Q105 | $6.0M | 0.34% | 20,262 | SH |
| 43 | AMETEK INC | AME | 031100100 | $6.0M | 0.34% | 27,910 | SH |
| 44 | MCKESSON CORP | MCK | 58155Q103 | $5.9M | 0.33% | 6,858 | SH |
| 45 | EXELON CORP | EXC | 30161N101 | $5.9M | 0.33% | 120,458 | SH |
| 46 | EXXON MOBIL CORP | XOM | 30231G102 | $5.9M | 0.33% | 34,490 | SH |
| 47 | MONDELEZ INTL INC | MDLZ | 609207105 | $5.5M | 0.31% | 94,993 | SH |
| 48 | HUBBELL INC | HUBB | 443510607 | $5.4M | 0.30% | 10,935 | SH |
| 49 | MEDTRONIC PLC | MDT | G5960L103 | $5.1M | 0.28% | 58,494 | SH |
| 50 | GENERAL MILLS INC | GIS | 370334104 | $5.0M | 0.28% | 135,154 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-14 | $1.78B | 562 | 0001104659-26-061164 |
| 2025-12-31 | 2026-02-13 | $2.08B | 572 | 0001104659-26-015183 |
| 2025-09-30 | 2025-11-14 | $2.23B | 570 | 0001104659-25-111991 |