Oppenheimer Holdings Inc.
US ˙ NYSE ˙ US6837971042

SecurityOPY / Oppenheimer Holdings Inc.
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Marshall Wace, Llp closes position in OPY / Oppenheimer Holdings Inc.

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 0 shares of Oppenheimer Holdings Inc. (US:OPY) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 16,795 shares of Oppenheimer Holdings Inc.. The current value of the position is $0 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-14 2026-03-31 13F OPPENHEIMER HO-A COMMON STOCK 683797104 0 -100.00 0
2026-02-13 2025-12-31 13F OPPENHEIMER HO-A COMMON STOCK 683797104 16,795 1,214
2025-11-13 2025-09-30 13F OPPENHEIMER HO-A COMMON STOCK 683797104 46,369 15,721 51.30 3,427 70.07 0.0017
2025-08-13 2025-06-30 13F OPPENHEIMER HO-A COMMON STOCK 683797104 30,648 30,648 2,016 0.0023
2024-11-14 2024-09-30 13F OPPENHEIMER HO-A COMMON STOCK 683797104 0 -14,736 -100.00 0 -100.00
2024-08-14 2024-06-30 13F OPPENHEIMER HO-A COMMON STOCK 683797104 14,736 8,623 141.06 706 189.34 0.0009
2024-05-15 2024-03-31 13F OPPENHEIMER HO-A COMMON STOCK 683797104 6,113 6,113 244 0.0004
2023-11-14 2023-09-30 13F OPPENHEIMER HO-A COMMON STOCK 683797104 0 -5,455 -100.00 0 -100.00
2023-08-14 2023-06-30 13F OPPENHEIMER HO-A COMMON STOCK 683797104 5,455 5,455 219 0.0004
2022-05-16 2022-03-31 13F OPPENHEIMER HO-A COMMON STOCK 683797104 0 -6,541 -100.00 0 -100.00
2022-02-14 2021-12-31 13F OPPENHEIMER HO-A COMMON STOCK 683797104 6,541 6,541 303 0.0006
2021-08-13 2021-06-30 13F OPPENHEIMER HO-A COMMON STOCK 683797104 0 -23,606 -100.00 0 -100.00
2021-05-17 2021-03-31 13F OPPENHEIMER HO-A COMMON STOCK 683797104 23,606 9,979 73.23 945 120.79 0.0043
2021-02-16 2020-12-31 13F OPPENHEIMER HO-A COMMON STOCK 683797104 13,627 -4,306 -24.01 428 7.00 0.0023
2020-11-16 2020-09-30 13F OPPENHEIMER HO-A COMMON STOCK 683797104 17,933 17,933 31.60 400 -6.54 0.0026
2019-02-14 2018-12-31 13F OPPENHEIMER HO-A COMMON STOCK 683797104 0 -10,001 -100.00 0 -100.00
2018-12-06 2018-09-30 13F/A-1 OPPENHEIMER HO-A COMMON STOCK 683797104 10,001 10,001 316 0.0027
2018-11-14 2018-09-30 13F OPPENHEIMER HO-A COMMON STOCK 683797104 10,001 316 0.0027
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.