Top Institutional Investors

OSSIAM — 13F Holdings & Portfolio

CIK 1767471 · latest 13F-HR filed 2026-11-13

Backtest portfolio

OSSIAM manages $7.48B in 13F-reported U.S. long-equity assets across 647 reported positions as of its 2026-09-30 13F-HR filing. Its largest disclosed positions are SPYM (10.24%), VOO (8.84%), TSLA (4.15%). Quarter over quarter (versus its 2026-06-30 filing) the fund opened 46 new positions and exited 79; 254 existing positions rose in reported value and 313 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.

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AUM
$7.48B

Long-equity book

Holdings
647

Distinct positions

Period
2026-09-30

Filed 2026-11-13

Q/Q Activity
+46 / −79 / ↑254 / ↓313

vs 2026-06-30

Portfolio charts

Latest quarter's book, what changed, and how the portfolio has evolved across filings.

Portfolio map

Q3 26
SPYM10.2% · -27%VOO8.8% · +72%TSLA4.1% · +22%INTC3.1% · +12%AAPL2.8% · -21%MSFT2.8% · +34%AMD2.3% · -48%SNDK2.3% · +75%BRK.B2.2% · -17%PLTR2.0% · +19%LRCX1.9% · +1326%GOOGL1.8% · +224%NVDA1.6% · -73%FTNT1.4% · -30%AMZN1.4% · -34%BAC1.3% · +2911%AMAT1.3% · +50%CRWD1.3% · +542%AVGO1.2% · +146%WFC1.1% · +446%ADBE0.9% · -25%BA0.9% · +1341%XOM0.8% · +2586%ABNB0.8% · +43%MELI0.8% · +21%SCHW0.8% · +46%GS0.7% · -51%SO0.7% · newIT0.6% · +87%KLAC0.6% · +167%LITE0.6% · +9%META0.6% · -10%MAR0.5% · +442%TEAM0.5% · -35%TER0.5% · +14%QRVO0.5% · -37%TPR0.5% · +2892%UBER0.4% · +16%LIN0.4% · +531%ADSK0.4% · -1%PEP0.4% · +554%WMT0.4% · +118%TXN0.4% · -12%DIS0.4% · +197%COP0.4% · +35%MU0.4% · +112%LHX0.4% · +1424%NFLX0.4% · +43%PANW0.4% · +94%DASH0.3% · -5%WDAY0.3% · +20%HOOD0.3% · -51%CPRT0.3% · +23%C0.3% · -74%SPCX0.3% · newLLY0.3% · -78%R0.3% · +737%MSTR0.3% · -20%ISRG0.3% · -33%CDNS0.3% · +30%

Box 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 value

Sectors from each company's SIC code; funds and ETFs grouped separately.

Biggest buys and sells

Q2 26 → Q3 26

Estimated 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

5 quarters

Total reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.

Top positions over time

reported value

The eight largest current positions, valued at each quarter end.

Concentration

top 10 = 40.7%

Cumulative share of the portfolio held in the largest N positions.

Firm Profile & Key People

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.

OSSIAM 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 SERIES TRUST SPYM 78464A854 $766.1M 10.24% 8,535,259 SH
2 VANGUARD INDEX FDS VOO 922908363 $661.2M 8.84% 943,461 SH
3 TESLA INC TSLA 88160R101 $310.0M 4.15% 873,778 SH
4 INTEL CORP INTC 458140100 $230.0M 3.08% 1,913,382 SH
5 APPLE INC AAPL 037833100 $211.8M 2.83% 636,005 SH
6 MICROSOFT CORP MSFT 594918104 $208.8M 2.79% 407,140 SH
7 ADVANCED MICRO DEVICES INC AMD 007903107 $174.8M 2.34% 285,761 SH
8 SANDISK CORP SNDK 80004C200 $170.6M 2.28% 98,073 SH
9 BERKSHIRE HATHAWAY INC DEL BRK.B 084670702 $163.2M 2.18% 327,789 SH
10 PALANTIR TECHNOLOGIES INC PLTR 69608A108 $147.6M 1.97% 789,188 SH
11 LAM RESEARCH CORP LRCX 512807306 $144.7M 1.93% 440,444 SH
12 ALPHABET INC GOOGL 02079K305 $135.2M 1.81% 392,789 SH
13 NVIDIA CORPORATION NVDA 67066G104 $120.6M 1.61% 527,946 SH
14 FORTINET INC FTNT 34959E109 $105.1M 1.40% 587,712 SH
15 AMAZON COM INC AMZN 023135106 $102.9M 1.38% 413,051 SH
16 BANK OF AMER CORP BAC 060505104 $100.0M 1.34% 1,837,504 SH
17 APPLIED MATLS INC AMAT 038222105 $98.0M 1.31% 191,666 SH
18 CROWDSTRIKE HLDGS INC CRWD 22788C105 $93.9M 1.26% 354,693 SH
19 BROADCOM INC AVGO 11135F101 $87.4M 1.17% 248,766 SH
20 WELLS FARGO & CO WFC 949746101 $83.2M 1.11% 1,039,791 SH
21 ADOBE INC ADBE 00724F101 $67.9M 0.91% 283,097 SH
22 BOEING CO BA 097023105 $65.1M 0.87% 349,781 SH
23 EXXONMOBIL HOLDINGS CORP XOM 30233Q108 $62.3M 0.83% 382,894 SH
24 AIRBNB INC ABNB 009066101 $61.1M 0.82% 380,517 SH
25 MERCADOLIBRE INC MELI 58733R102 $60.0M 0.80% 34,719 SH
26 CHARLES SCHWAB CORP (THE) SCHW 808513105 $57.3M 0.77% 586,450 SH
27 GOLDMAN SACHS GROUP INC GS 38141G104 $54.1M 0.72% 60,032 SH
28 SOUTHERN CO SO 842587107 $52.5M 0.70% 633,675 SH
29 GARTNER INC IT 366651107 $48.1M 0.64% 257,916 SH
30 KLA CORP KLAC 482480100 $47.9M 0.64% 245,937 SH
31 LUMENTUM HLDGS INC LITE 55024U109 $44.2M 0.59% 45,515 SH
32 META PLATFORMS INC META 30303M102 $41.4M 0.55% 57,034 SH
33 MARRIOTT INTL INC NEW MAR 571903202 $38.0M 0.51% 106,761 SH
34 ATLASSIAN CORPORATION TEAM 049468101 $37.8M 0.51% 210,897 SH
35 TERADYNE INC TER 880770102 $37.4M 0.50% 93,343 SH
36 QORVO INC QRVO 74736K101 $37.4M 0.50% 326,446 SH
37 TAPESTRY INC TPR 876030107 $33.9M 0.45% 294,269 SH
38 UBER TECHNOLOGIES INC UBER 90353T100 $32.0M 0.43% 467,389 SH
39 LINDE PLC LIN G54950103 $30.9M 0.41% 65,159 SH
40 AUTODESK INC ADSK 052769106 $30.3M 0.40% 144,809 SH
41 PEPSICO INC PEP 713448108 $30.0M 0.40% 237,074 SH
42 WALMART INC WMT 931142103 $29.7M 0.40% 285,789 SH
43 TEXAS INSTRS INC TXN 882508104 $28.9M 0.39% 103,042 SH
44 DISNEY WALT CO DIS 254687106 $28.8M 0.39% 274,677 SH
45 CONOCOPHILLIPS COP 20825C104 $28.3M 0.38% 225,981 SH
46 MICRON TECHNOLOGY INC MU 595112103 $28.0M 0.37% 26,286 SH
47 L3HARRIS TECHNOLOGIES INC LHX 502431109 $26.9M 0.36% 113,421 SH
48 NETFLIX INC. NFLX 64110L106 $26.8M 0.36% 385,664 SH
49 PALO ALTO NETWORKS INC PANW 697435105 $26.7M 0.36% 67,307 SH
50 DOORDASH INC DASH 25809K105 $26.2M 0.35% 142,729 SH
Filing History
Period Filed AUM Holdings Accession
2026-09-30 2026-11-13 $7.48B 647 0001104659-26-126573
2026-06-30 2026-08-13 $7.54B 680 0001104659-26-095927
2026-03-31 2026-05-14 $5.69B 388 0001104659-26-061158
2025-12-31 2026-02-13 $5.01B 388 0001104659-26-015184
2025-09-30 2025-11-14 $7.77B 694 0001104659-25-112000
Filer Information
Address
6 PLACE DE LA MADELEINE
PARIS, I0 75008
Phone
0033184794270
Filing Manager
OSSIAM
PARIS, I0
Signatory
BRUNO POULIN
CEO