DOSSIER · 13F-HR · Q3 2026

OPPENHEIMER & CO INC

$9.5B in tracked AUM across 1,752 positions as of Q3 2026.

O&
CIK 0000822581 · last filed Sep 30, 2026
Total AUM
$9.5B
as of Q3 2026
Holdings
1,752
—
positions
Whale Score
59
59
tracked
Activity
—
no data
changes this Q
AI Analysis · Q3 2026

Oppenheimer & Co's book shrank from $8.2 billion to $7.04 billion across 1,523 positions, and the biggest headline is what's gone: Apple ($285.6 million), Amazon ($155.4 million), and Berkshire Hathaway Class B ($100.5 million) were all fully exited, alongside the legacy Invesco QQQ position ($82.7 million) and Amgen ($31.9 million). The most interesting real buy is nearly invisible in dollar terms: Netflix's share count rose 863% — from 33,198 to 319,760 shares, a genuine $26.9 million addition — even as the position's dollar value fell $9.8 million because the stock declined; Meta shows the identical pattern at smaller scale (+2.8% shares, a real $3.3 million buy, against a $10.0 million value drop). Alphabet Class A was actually cut 2.8% in shares (a real $4.0 million reduction) despite its dollar value jumping $28.6 million on a rallying stock. ServiceTitan took the largest true trim: shares down 70%, a genuine $53.6 million reduction. New positions include a $42.1 million shift into T-bill ETF BIL, plus IBM, KKR, Waste Management, NextEra Energy, and CrowdStrike.

Three mega-cap exits

Apple was fully exited this quarter — a $285.6 million position eliminated entirely, the largest single change in the book. Amazon ($155.4 million) and Berkshire Hathaway Class B ($100.5 million) were also fully sold, alongside the firm's legacy Invesco QQQ holding ($82.7 million) and Amgen ($31.9 million). Together these five exits total over $650 million in eliminated exposure — a substantial reduction in some of the market's largest, most liquid names.

Analysis generated by 13F Insight from SEC Form 13F filing data · Q3 2026. Methodology

Quarter at a glance — Q3 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q3 2026. Source: SEC EDGAR 13F-HR filings.

#HoldingValueSharesWeight
01
MSFT
MICROSOFT CORP
$378M737K4.0%
02
AAPL
APPLE INC
$365M1.1M3.8%
03
NVDA
NVIDIA CORPORATION
$293M1.3M3.1%
04
AMZN
AMAZON COM INC
$210M843K2.2%
05
GOOGL
ALPHABET INC
$165M479K1.7%
06
GOOG
ALPHABET INC
$161M473K1.7%
07
JPM
JPMORGAN CHASE & CO
$139M421K1.5%
08
META
META PLATFORMS INC
$129M177K1.4%
09
AVGO
BROADCOM INC
$110M313K1.2%
10
SPY
STATE STR SPDR S&P 500 ETF T
$108M142K1.1%

Filing history

2026Q3Sep 30
$9.5B▲ 1.5%
1,752 positionsView →
2026Q2Jun 30
$9.4B▲ 33.0%
1,759 positionsView →
2025Q4Dec 31
$7.0B▼ 14.1%
1,523 positionsView →
2025Q3Sep 30
$8.2B▲ 8.4%
1,646 positionsLocked
2025Q2Jun 30
$7.6B▲ 14.2%
1,603 positionsLocked
2025Q1Mar 31
$6.6B▼ 1.2%
1,564 positionsLocked
2024Q4Dec 31
$6.7B▲ 2.2%
1,548 positionsLocked
2024Q3Sep 30
$6.6B▲ 4.1%
1,506 positionsLocked
2024Q2Jun 30
$6.3B▲ 4.5%
1,430 positionsLocked
2024Q1Mar 31
$6.0B▲ 10.8%
1,436 positionsLocked
2023Q4Dec 31
$5.4B▲ 12.3%
1,383 positionsLocked
2023Q3Sep 30
$4.8B▼ 3.1%
1,375 positionsLocked
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