Eastern Bankshares, Inc.
US ˙ NasdaqGS ˙ US27627N1054

SecurityEBC / Eastern Bankshares, Inc.
InstitutionQuantinno Capital Management LP
Latest Disclosed Ownership213,703 shares
Latest Disclosed Value $ 4,180,050
Quantinno Capital Management LP reports 378.38% increase in ownership of EBC / Eastern Bankshares, Inc.

On May 15, 2026 - Quantinno Capital Management LP filed a 13F-HR form disclosing ownership of 213,703 shares of Eastern Bankshares, Inc. (US:EBC) valued at $4,180,031 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 44,672 shares of Eastern Bankshares, Inc.. This represents a change in shares of 378.38% during the quarter. The current value of the position is $4,293,293 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)
2026-05-15 2026-03-31 13F EASTERN BANKSHARES COM 27627N105 213,703 169,031 378.38 4,180 407.90 0.0070
2026-02-17 2025-12-31 13F EASTERN BANKSHARES COM 27627N105 44,672 7,801 21.16 823 23.02 0.0017
2025-11-14 2025-09-30 13F EASTERN BANKSHARES COM 27627N105 36,871 25,851 234.58 669 298.21 0.0018
2025-08-14 2025-06-30 13F EASTERN BANKSHARES COM 27627N105 11,020 -255 -2.26 168 -8.70 0.0007
2025-05-12 2025-03-31 13F EASTERN BANKSHARES COM 27627N105 11,275 11,275 185 0.0012
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.