OSTRUM ASSET MANAGEMENT
Sector Allocation
- Technology39.4%$817.5M
- Industrials14.2%$294.1M
- Financials11.8%$245.4M
- Healthcare10.0%$207.5M
- Consumer Discretionary8.1%$168.6M
- Materials4.7%$96.7M
- Consumer Staples4.2%$87.6M
- Utilities3.0%$62.1M
- Real Estate1.8%$37.1M
- Energy1.7%$36.2M
AUM History
13fpro.ai/research/fund/ostrum-asset-management-1767945
Conviction and streaks
Concentrating · top 10 = 37.1%From the fund's last 12 quarters of 13F filings: positions held longest at size, and names it added to or trimmed several quarters running.
Largest positions — Q2 2026
AMAT
$132.5MNVDA
$129.7MGOOGL
$90.7MLLY
$86.8MAAPL
$86.3MAMZN
$63.9MCMI
$49.5MGE
$45.2METN
$43.0MJPM
$41.5MV
$41.4MURI
$38.7MMPWR
$38.6MNUE
$37.5MSCHW
$34.4MEXC
$31.5MPH
$31.4MVMC
$30.6MMSFT
$30.4MROST
$29.7M
Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.
13fpro.ai/research/fund/ostrum-asset-management-1767945
OSTRUM ASSET MANAGEMENT 13F holdings — Q2 2026
$2.1B portfolio (+16.5% QoQ) · 549 holdings · Q2 2026 13F · top 10 are 37% of the stock portfolio
$132.5M
6.4% of stocks
-14%This quarter-27.5%Since filed7+ qtrsHeld$129.7M
6.3% of stocks
+0.3%This quarter-4.1%Since filed7+ qtrsHeld$90.7M
4.4% of stocks
-1%This quarter-8.7%Since filed7+ qtrsHeld$86.8M
4.2% of stocks
-2%This quarter+5.8%Since filed7+ qtrsHeld$86.3M
4.2% of stocks
+3%This quarter+12.7%Since filed7+ qtrsHeld$63.9M
3.1% of stocks
+1%This quarter-6.0%Since filed7+ qtrsHeld$49.5M
2.4% of stocks
-0.9%This quarter-17.3%Since filed7+ qtrsHeld$45.2M
2.2% of stocks
-7%This quarter-20.0%Since filed7+ qtrsHeld$43.0M
2.1% of stocks
+2%This quarter-18.0%Since filed7+ qtrsHeldAIQualityAI quality score is Pro: unlock with a free trialEst. buyEstimated buy price is Pro: unlock with a free trialAdded 3 qtrs in a row$41.5M
2.0% of stocks
+0.3%This quarter-8.0%Since filed7+ qtrsHeld
All holdings — OSTRUM ASSET MANAGEMENT (Q2 2026)
549 disclosed positions from the Form 13F-HR on SEC EDGAR, with quarter-over-quarter share changes. Largest by value first; the ten above are not repeated.
| # | Company | Held | Source | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 11 | VISA INC. | Financials | $41.4M | 2.0% | 121K | +0.0% | 7+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 12 | UNITED RENTALS, INC. | Industrials | $38.7M | 1.9% | 34K | -3% | 7+ qtrsTrimmed 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 13 | MONOLITHIC POWER SYSTEMS, INC. | Technology | $38.6M | 1.9% | 28K | +35% | 7+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 14 | NUCOR CORP | Materials | $37.5M | 1.8% | 168K | -0.0% | 7+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 15 | SCHWAB CHARLES CORP | Financials | $34.4M | 1.7% | 372K | +4% | 7+ qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 16 | EXELON CORP | Utilities | $31.5M | 1.5% | 676K | +461% | 7+ qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 17 | Parker-Hannifin Corp | Industrials | $31.4M | 1.5% | 32K | +1505% | 7+ qtrsAdded 6 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 18 | Vulcan Materials CO | Materials | $30.6M | 1.5% | 104K | +2% | 7+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 19 | MICROSOFT CORP | Technology | $30.4M | 1.5% | 81K | +5% | 7+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 20 | ROSS STORES, INC. | Consumer Discretionary | $29.7M | 1.4% | 140K | +3% | 7+ qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 21 | ILLUMINA, INC. | Healthcare | $29.6M | 1.4% | 169K | -27% | 7+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 22 | SYNOPSYS INC | Technology | $28.5M | 1.4% | 64K | -4% | 7+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 23 | Meta Platforms, Inc. | Technology | $27.7M | 1.3% | 49K | +3% | 7+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 24 | BERKSHIRE HATHAWAY INC | Financials | $27.7M | 1.3% | 55K | -2% | 7+ qtrsTrimmed 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 25 | SHOPIFY INC. | Technology | $24.6M | 1.2% | 216K | -16% | 2 qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 26 | $Q | Qnity Electronics, Inc. | Technology | $24.1M | 1.2% | 147K | +8184% | |||
| 27 | $AVGO | Broadcom Inc. | Technology | $16.3M | 0.8% | 43K | +3% | |||
| 28 | $GOOG | Alphabet Inc. | Technology | $15.4M | 0.7% | 44K | -3% | |||
| 29 | $JNJ | JOHNSON & JOHNSON | Healthcare | $14.2M | 0.7% | 56K | +0.9% | |||
| 30 | $TSLA | Tesla, Inc. | Consumer Discretionary | $10.5M | 0.5% | 25K | +56% | |||
| 31 | $CSCO | CISCO SYSTEMS, INC. | Technology | $10.5M | 0.5% | 90K | -4% | |||
| 32 | $CCEP | COCA-COLA EUROPACIFIC PARTNERS plc | Consumer Staples | $9.9M | 0.5% | 99K | +6% | |||
| 33 | $AMD | ADVANCED MICRO DEVICES INC | Technology | $9.8M | 0.5% | 17K | +3% | |||
| 34 | $MU | MICRON TECHNOLOGY INC | Technology | $9.6M | 0.5% | 8,308 | -6% | |||
| 35 | $KO | COCA COLA CO | Consumer Staples | $9.3M | 0.5% | 115K | +4% | |||
| 36 | $MCD | MCDONALDS CORP | Consumer Discretionary | $9.0M | 0.4% | 33K | +7% | |||
| 37 | $KOS | Kosmos Energy Ltd. | Energy | $8.5M | 0.4% | 4.01M | — | |||
| 38 | $WM | WASTE MANAGEMENT INC | Utilities | $7.9M | 0.4% | 35K | +5% | |||
| 39 | $PANW | Palo Alto Networks Inc | Technology | $7.7M | 0.4% | 23K | -23% | |||
| 40 | $ABBV | AbbVie Inc. | Healthcare | $7.6M | 0.4% | 30K | +1% | |||
| 41 | $AME | AMETEK INC/ | Industrials | $7.1M | 0.3% | 29K | +5% | |||
| 42 | $LRCX | LAM RESEARCH CORP | Technology | $6.8M | 0.3% | 16K | -12% | |||
| 43 | $PG | PROCTER & GAMBLE Co | Consumer Staples | $6.7M | 0.3% | 45K | -9% | |||
| 44 | $COR | Cencora, Inc. | Consumer Staples | $6.5M | 0.3% | 23K | +18% | |||
| 45 | $HUBB | HUBBELL INC | Technology | $6.5M | 0.3% | 12K | +13% | |||
| 46 | $MA | Mastercard Inc | Financials | $6.3M | 0.3% | 12K | +45% | |||
| 47 | $KLAC | KLA CORP | Technology | $6.0M | 0.3% | 20K | +834% | |||
| 48 | $GIS | GENERAL MILLS INC | Consumer Staples | $5.8M | 0.3% | 168K | +24% | |||
| 49 | $MDLZ | Mondelez International, Inc. | Consumer Staples | $5.8M | 0.3% | 99K | +5% | |||
| 50 | $MCK | MCKESSON CORP | Consumer Staples | $5.7M | 0.3% | 7,577 | +10% | |||
| 51 | $NBIS | Nebius Group N.V. | Technology | $5.7M | 0.3% | 21K | +48% | |||
| 52 | $RPRX | Royalty Pharma plc | Healthcare | $5.6M | 0.3% | 99K | -2% | |||
| 53 | $JBL | JABIL INC | Technology | $5.5M | 0.3% | 14K | +35% | |||
| 54 | $MRVL | Marvell Technology, Inc. | Technology | $5.4M | 0.3% | 18K | -40% | |||
| 55 | $WELL | WELLTOWER INC. | Real Estate | $5.4M | 0.3% | 24K | -6% | |||
| 56 | $VTR | Ventas, Inc. | Real Estate | $5.4M | 0.3% | 60K | +1% | |||
| 57 | $HWM | Howmet Aerospace Inc. | Materials | $5.4M | 0.3% | 20K | +8% | |||
| 58 | $HD | HOME DEPOT, INC. | Consumer Discretionary | $5.1M | 0.2% | 14K | +21% | |||
| 59 | $MDT | Medtronic plc | Healthcare | $4.8M | 0.2% | 62K | +6% | |||
| 60 | $XOM.R34088 | EXXON MOBIL CORP | Energy | $4.8M | 0.2% | 35K | +3% | |||
| 61 | $CBOE | Cboe Global Markets, Inc. | Financials | $4.8M | 0.2% | 20K | -21% | |||
| 62 | $EW | Edwards Lifesciences Corp | Healthcare | $4.7M | 0.2% | 52K | -4% | |||
| 63 | $UNH | UNITEDHEALTH GROUP INC | Healthcare | $4.7M | 0.2% | 11K | +42% | |||
| 64 | $CHD | CHURCH & DWIGHT CO INC /DE/ | Consumer Staples | $4.7M | 0.2% | 48K | +10% | |||
| 65 | $BKR | Baker Hughes Co | Energy | $4.5M | 0.2% | 81K | +2% | |||
| 66 | $QCOM | QUALCOMM INC/DE | Technology | $4.4M | 0.2% | 24K | +49% | |||
| 67 | $GEV | GE Vernova Inc. | Industrials | $4.4M | 0.2% | 3,718 | -8% | |||
| 68 | $RTX | RTX Corp | Industrials | $4.2M | 0.2% | 22K | +20% | |||
| 69 | $DG | DOLLAR GENERAL CORP | Consumer Staples | $4.2M | 0.2% | 36K | +11% | |||
| 70 | $AER | AerCap Holdings N.V. | Industrials | $4.2M | 0.2% | 29K | +9% | |||
| 71 | $CME | CME GROUP INC. | Financials | $4.0M | 0.2% | 18K | -10% | |||
| 72 | $LNG | Cheniere Energy, Inc. | Energy | $3.9M | 0.2% | 17K | +33% | |||
| 73 | $DE | DEERE & CO | Industrials | $3.9M | 0.2% | 6,094 | -1% | |||
| 74 | $LIN | LINDE PLC | Materials | $3.9M | 0.2% | 7,440 | +38% | |||
| 75 | $AON | Aon plc | Financials | $3.8M | 0.2% | 12K | +10% | |||
| 76 | $O | REALTY INCOME CORP | Real Estate | $3.8M | 0.2% | 61K | -5% | |||
| 77 | $WMT | Walmart Inc. | Consumer Staples | $3.7M | 0.2% | 33K | -7% | |||
| 78 | $DGX | QUEST DIAGNOSTICS INC | Healthcare | $3.7M | 0.2% | 17K | — | |||
| 79 | $MRSH | MARSH & MCLENNAN COMPANIES, INC. | Financials | $3.6M | 0.2% | 22K | +64% | |||
| 80 | $IBM | INTERNATIONAL BUSINESS MACHINES CORP | Technology | $3.6M | 0.2% | 13K | -1% | |||
| 81 | $CRH | CRH PUBLIC LTD CO | Materials | $3.6M | 0.2% | 33K | +454% | |||
| 82 | $TT | Trane Technologies plc | Technology | $3.6M | 0.2% | 7,274 | -2% | |||
| 83 | $AXP | AMERICAN EXPRESS CO | Financials | $3.6M | 0.2% | 11K | +22% | |||
| 84 | $BMY | BRISTOL MYERS SQUIBB CO | Healthcare | $3.6M | 0.2% | 62K | +14% | |||
| 85 | $FSLR | FIRST SOLAR, INC. | Technology | $3.5M | 0.2% | 15K | — | |||
| 86 | $ED | CONSOLIDATED EDISON INC | Utilities | $3.4M | 0.2% | 31K | +24% | |||
| 87 | $YUM | YUM BRANDS INC | Consumer Discretionary | $3.4M | 0.2% | 21K | +108% | |||
| 88 | $LOW | LOWES COMPANIES INC | Consumer Discretionary | $3.4M | 0.2% | 15K | +28% | |||
| 89 | $DIS | Walt Disney Co | Communication Services | $3.4M | 0.2% | 35K | +23% | |||
| 90 | $SPGI | S&P Global Inc. | Financials | $3.3M | 0.2% | 8,162 | +25% | |||
| 91 | $CI | Cigna Group | Healthcare | $3.3M | 0.2% | 12K | +11% | |||
| 92 | $TJX | TJX COMPANIES INC /DE/ | Consumer Discretionary | $3.3M | 0.2% | 22K | +4% | |||
| 93 | $COHR | COHERENT CORP. | Technology | $3.2M | 0.1% | 8,132 | +130% | |||
| 94 | $AZO | AUTOZONE INC | Consumer Discretionary | $3.2M | 0.1% | 996 | +7% | |||
| 95 | $STX | Seagate Technology Holdings plc | Technology | $3.1M | 0.1% | 3,253 | -19% | |||
| 96 | $GWW | W.W. GRAINGER, INC. | Consumer Discretionary | $3.1M | 0.1% | 2,296 | +28% | |||
| 97 | $BALL | BALL Corp | Industrials | $3.1M | 0.1% | 50K | +20% | |||
| 98 | $CDNS | CADENCE DESIGN SYSTEMS INC | Technology | $3.1M | 0.1% | 8,160 | -6% | |||
| 99 | $ADBE | ADOBE INC. | Technology | $3.0M | 0.1% | 15K | +30% | |||
| 100 | $CVX | CHEVRON CORP | Energy | $3.0M | 0.1% | 18K | — | |||
| 101 | $BAC | BANK OF AMERICA CORP /DE/ | Financials | $2.9M | 0.1% | 51K | -22% | |||
| 102 | $ACN | Accenture plc | Technology | $2.9M | 0.1% | 23K | +41% | |||
| 103 | $TTWO | TAKE TWO INTERACTIVE SOFTWARE INC | Technology | $2.9M | 0.1% | 12K | -29% | |||
| 104 | $JCI | Johnson Controls International plc | Industrials | $2.9M | 0.1% | 20K | -9% | |||
| 105 | $ELV | Elevance Health, Inc. | Healthcare | $2.9M | 0.1% | 7,485 | +2% | |||
| 106 | $UPS | UNITED PARCEL SERVICE INC | Industrials | $2.9M | 0.1% | 27K | +17% | |||
| 107 | $PFE | PFIZER INC | Healthcare | $2.9M | 0.1% | 120K | -3% | |||
| 108 | $CW | CURTISS WRIGHT CORP | Industrials | $2.9M | 0.1% | 3,793 | +27% | |||
| 109 | $EA | ELECTRONIC ARTS INC. | Technology | $2.9M | 0.1% | 14K | +14% | |||
| 110 | $PFG | PRINCIPAL FINANCIAL GROUP INC | Financials | $2.8M | 0.1% | 26K | +6% | |||
| 111 | $NTAP | NetApp, Inc. | Technology | $2.8M | 0.1% | 18K | +363% | |||
| 112 | $A | AGILENT TECHNOLOGIES, INC. | Healthcare | $2.8M | 0.1% | 21K | -7% | |||
| 113 | $SYF | Synchrony Financial | Financials | $2.8M | 0.1% | 37K | +58% | |||
| 114 | $NFLX | NETFLIX INC | Communication Services | $2.8M | 0.1% | 39K | -21% | |||
| 115 | $MCO | MOODYS CORP /DE/ | Financials | $2.8M | 0.1% | 6,130 | +20% | |||
| 116 | $RSG | REPUBLIC SERVICES, INC. | Utilities | $2.8M | 0.1% | 13K | +13% | |||
| 117 | $STT | STATE STREET CORP | Financials | $2.8M | 0.1% | 16K | -12% | |||
| 118 | $TGT | TARGET CORP | Consumer Staples | $2.7M | 0.1% | 21K | +20% | |||
| 119 | $ES | EVERSOURCE ENERGY | Utilities | $2.7M | 0.1% | 38K | +57% | |||
| 120 | $TW | Tradeweb Markets Inc. | Financials | $2.7M | 0.1% | 27K | +44% | |||
| 121 | $CAT | CATERPILLAR INC | Industrials | $2.7M | 0.1% | 2,526 | +36% | |||
| 122 | $CIEN | CIENA CORP | Technology | $2.7M | 0.1% | 5,478 | -6% | |||
| 123 | $MET | METLIFE INC | Financials | $2.7M | 0.1% | 32K | +15% | |||
| 124 | $ORLY | O REILLY AUTOMOTIVE INC | Consumer Discretionary | $2.7M | 0.1% | 29K | -14% | |||
| 125 | $WCN | Waste Connections, Inc. | Utilities | $2.6M | 0.1% | 16K | +3% | |||
| 126 | $MTD | METTLER TOLEDO INTERNATIONAL INC/ | Healthcare | $2.6M | 0.1% | 2,062 | +34% | |||
| 127 | $NLY | ANNALY CAPITAL MANAGEMENT INC | Real Estate | $2.6M | 0.1% | 118K | +18% | |||
| 128 | $OKE | ONEOK INC /NEW/ | Energy | $2.6M | 0.1% | 30K | +62% | |||
| 129 | $TPL | Texas Pacific Land Corp | Financials | $2.6M | 0.1% | 5,889 | +0.9% | |||
| 130 | $KDP | Keurig Dr Pepper Inc. | Consumer Staples | $2.5M | 0.1% | 77K | — | |||
| 131 | $INTC | INTEL CORP | Technology | $2.5M | 0.1% | 18K | +21% | |||
| 132 | $MRK | Merck & Co., Inc. | Healthcare | $2.5M | 0.1% | 19K | -2% | |||
| 133 | $C | CITIGROUP INC | Financials | $2.5M | 0.1% | 18K | -32% | |||
| 134 | $BURL | Burlington Stores, Inc. | Consumer Discretionary | $2.4M | 0.1% | 7,568 | -22% | |||
| 135 | $PEG | PUBLIC SERVICE ENTERPRISE GROUP INC | Utilities | $2.4M | 0.1% | 30K | +4% | |||
| 136 | $ABT | ABBOTT LABORATORIES | Healthcare | $2.4M | 0.1% | 26K | +18% | |||
| 137 | $CB | Chubb Ltd | Financials | $2.4M | 0.1% | 6,974 | -0.9% | |||
| 138 | $PEP | PEPSICO INC | Consumer Staples | $2.4M | 0.1% | 18K | -36% | |||
| 139 | $NEM | NEWMONT Corp /DE/ | Materials | $2.4M | 0.1% | 25K | -22% | |||
| 140 | $LYV | Live Nation Entertainment, Inc. | Communication Services | $2.3M | 0.1% | 13K | +50% | |||
| 141 | $DLTR | DOLLAR TREE, INC. | Consumer Staples | $2.3M | 0.1% | 19K | +78% | |||
| 142 | $DLR | DIGITAL REALTY TRUST, INC. | Real Estate | $2.3M | 0.1% | 13K | +22% | |||
| 143 | $LPLA | LPL Financial Holdings Inc. | Financials | $2.3M | 0.1% | 8,173 | +44% | |||
| 144 | $VRSN | VERISIGN INC/CA | Technology | $2.3M | 0.1% | 9,063 | +54% | |||
| 145 | $AWK | American Water Works Company, Inc. | Utilities | $2.3M | 0.1% | 17K | +31% | |||
| 146 | $PGR | PROGRESSIVE CORP/OH/ | Financials | $2.3M | 0.1% | 10K | -4% | |||
| 147 | $NVR | NVR INC | Industrials | $2.2M | 0.1% | 327 | +4% | |||
| 148 | $WAT | WATERS CORP /DE/ | Healthcare | $2.2M | 0.1% | 5,939 | +39% | |||
| 149 | $HLT | Hilton Worldwide Holdings Inc. | Consumer Discretionary | $2.2M | 0.1% | 6,675 | +6% | |||
| 150 | $OKTA | Okta, Inc. | Technology | $2.2M | 0.1% | 16K | +143% |
What changed in Q2 2026
Against the previous quarter's 13F: 14 new, 235 added to, 141 trimmed, 27 sold out. Share-count changes; largest moves by dollar size first.
New positions (14)
$MOG-AMOOG INC.$1.5M
first bought this quarter
$RRXREGAL REXNORD CORP$1.3M
first bought this quarter
$ATIATI INC$1.2M
first bought this quarter
$GNRCGENERAC HOLDINGS INC.$940K
first bought this quarter
$FDXFFedEx Freight Holding Company, Inc.$807K
first bought this quarter
$VICRVICOR CORP$632K
first bought this quarter
+8 more in the Excel export
Added to (235)
$PHParker-Hannifin Corp+1505%
now $31.4M · held 7+ qtrs, 6 adds in a row
$EXCEXELON CORP+461%
now $31.5M · held 7+ qtrs, 2 adds in a row
$QQnity Electronics, Inc.+8184%
now $24.1M · held 3 qtrs, 3 adds in a row
$MPWRMONOLITHIC POWER SYSTEMS, INC.+35%
now $38.6M · held 7+ qtrs
$KLACKLA CORP+834%
now $6.0M · held 7+ qtrs
$TSLATesla, Inc.+56%
now $10.5M · held 7+ qtrs
+229 more in the Excel export
Trimmed (141)
$HONHONEYWELL INTERNATIONAL INC-99%
now $282K
$AMATAPPLIED MATERIALS INC /DE-14%
now $132.5M · held 7+ qtrs
$ICEIntercontinental Exchange, Inc.-90%
now $1.7M
$ILMNILLUMINA, INC.-27%
now $29.6M · held 7+ qtrs
$SHOPSHOPIFY INC.-16%
now $24.6M · held 2 qtrs
$MRVLMarvell Technology, Inc.-40%
now $5.4M · held 7+ qtrs
+135 more in the Excel export
Holdings by quarter
Every 13F OSTRUM ASSET MANAGEMENT has filed, 21 earlier quarters. Pick one to see what it held then.
Is it too late to follow OSTRUM ASSET MANAGEMENT?
Q2 2026 13F filed with the SEC on Aug 13, 2026. Prices are closing prices as of Oct 26, 2026.
Average quality of OSTRUM ASSET MANAGEMENT's top 20 holdings: 74/100 (our AI quality score, weighted by position size; 19 of the 20 are scored)
Top 10 since filing
-8.6%
Value-weighted move of the 10 largest stock positions
Turnover
10%
Last quarter; 51% over the last 4
Top 10 weight
37%
Share of the stock portfolio in its 10 largest positions
Held 4+ quarters
96%
Share of portfolio value in positions held a year or more
Highest-quality names it owns(among its 100 largest positions)
The 8 highest-scoring companies in this portfolio are a Pro feature.
How these are measured
- Moves since the quarter-end and since the filing date use our own daily closing prices, from the close on (or just before) each date to the latest close.
- Turnover is the lesser of shares bought or sold in a quarter, valued at the quarter-end prices in the 13F, divided by the average of the two quarters' stock portfolio values.
- Quarters held and add/trim streaks count back only through quarters whose filed holdings add up to the filing's own cover-page total (back to Q4 2024 for this fund). A change counts as an add or a trim when the split-adjusted share count moves by more than 1%.
- Estimate, not the fund's reported cost. For each quarter in the current holding period in which the fund's share count rose (split-adjusted), we take that quarter's average daily close and weight it by the shares added; sales do not change an average cost. Quarters where the stock's price history and the 13F's own implied price disagree by more than 2x are left out.
- Put and call option rows report the value of the underlying shares, not a position the fund paid for, so they are left out of all of the above.
Portfolio Overview
OSTRUM ASSET MANAGEMENT disclosed 549 positions worth $2.1B in its Form 13F-HR for Q2 2026, led by $AMAT (APPLIED MATERIALS INC /DE) at 6.4% of the equity portfolio, followed by $NVDA and $GOOGL. During the quarter the fund opened 14 new positions and exited 27 — including a new stake in $MOG-A and a full exit from $LECO. The portfolio is most concentrated in Technology (39.4% of disclosed assets). All figures are sourced directly from OSTRUM ASSET MANAGEMENT’s Form 13F-HR filing with the SEC under CIK 1767945.
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AI-Powered Hedge Fund Analysis: OSTRUM ASSET MANAGEMENT
13F Pro is an AI hedge fund tracker and stock research platform. For OSTRUM ASSET MANAGEMENT (SEC CIK: 1767945), the platform ingests every quarterly Form 13F filing and applies AI-powered analysis on top — 10 specialized AI analysts (value, growth, momentum, macro, activist, and more) debate the fund's top positions and publish AI-generated analysis with cited SEC sources.
Every holding in OSTRUM ASSET MANAGEMENT's portfolio is scored on an AI quality ranking built from its SEC filings (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.