East West Bancorp, Inc.
US ˙ NasdaqGS ˙ US27579R1041

SecurityEWBC / East West Bancorp, Inc.
InstitutionSummit Trail Advisors, Llc
Latest Disclosed Ownership17,352 shares
Latest Disclosed Value $ 1,852,500
Summit Trail Advisors, Llc reports 36.00% increase in ownership of EWBC / East West Bancorp, Inc.

On May 12, 2026 - Summit Trail Advisors, Llc filed a 13F-HR form disclosing ownership of 17,352 shares of East West Bancorp, Inc. (US:EWBC) valued at $1,852,500 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 12,759 shares of East West Bancorp, Inc.. This represents a change in shares of 36.00% during the quarter. The current value of the position is $2,102,195 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)
2026-05-12 2026-03-31 13F EAST WEST BANCORP COM 27579R104 17,352 4,593 36.00 1,852 29.24 0.0265
2026-02-17 2025-12-31 13F EAST WEST BANCORP COM 27579R104 12,759 3,375 35.97 1,434 43.59 0.0248
2025-11-14 2025-09-30 13F EAST WEST BANCORP COM 27579R104 9,384 5,103 119.20 999 131.02 0.0138
2025-08-14 2025-06-30 13F EAST WEST BANCORP COM 27579R104 4,281 4,281 432 0.0074
2021-02-16 2020-12-31 13F Citigroup Inc Com Equity 27579R104 0 -6,885 -100.00 0 -100.00
2020-11-16 2020-09-30 13F Citigroup Inc Com Equity 27579R104 6,885 6,885 336 0.0650
2018-08-10 2018-06-30 13F EAST WEST BANCORP INC COM EQUITY 27579R104 0 -4,416 -100.00 0 -100.00
2018-05-21 2018-03-31 13F EAST WEST BANCORP INC COM EQUITY 27579R104 4,416 4,343 5,949.32 4 -20.00 0.0006
2018-02-14 2017-12-31 13F EAST WEST BANCORP EQUITY 27579R104 73 73 5 0.0006
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.