동부 은행 공유, Inc.
US ˙ NasdaqGS ˙ US27627N1054

SecurityEBC / Eastern Bankshares, Inc.
InstitutionQUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series
Latest Disclosed Ownership340,885 shares
Latest Disclosed Value $ 5,205,313
QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series reports 3.65% increase in ownership of EBC / Eastern Bankshares, Inc.

On August 26, 2025 - QUANTITATIVE MASTER SERIES LLC - Master Small Cap Index Series filed a NPORT-P form disclosing ownership of 340,885 shares of Eastern Bankshares, Inc. (US:EBC) valued at $5,205,314 USD as of June 30, 2025. The entity filed a previous NPORT-P on May 28, 2025 disclosing 328,873 shares of Eastern Bankshares, Inc.. This represents a change in shares of 3.65% during the quarter. The current value of the position is $6,766,567 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.

Upgrade to unlock premium data and export to Excel .

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)
2025-08-26 2025-06-30 NP Eastern Bankshares EC US27627N1054 340,885 12,012 3.65 5,205 -3.49 0.1169
2025-05-28 2025-03-31 NP Eastern Bankshares EC US27627N1054 328,873 3,492 1.07 5,394 -3.90 0.1294
2025-02-25 2024-12-31 NP Eastern Bankshares EC US27627N1054 325,381 -53,346 -14.09 5,613 -9.59 0.1226
2024-11-26 2024-09-30 NP Eastern Bankshares EC US27627N1054 378,727 85,919 29.34 6,207 51.65 0.1174
2024-08-26 2024-06-30 NP Eastern Bankshares EC US27627N1054 292,808 22,393 8.28 4,093 9.85 0.0834
2024-05-28 2024-03-31 NP Eastern Bankshares EC US27627N1054 270,415 -12,118 -4.29 3,726 -7.11 0.0778
2024-02-26 2023-12-31 NP Eastern Bankshares EC US27627N1054 282,533 19,533 7.43 4,012 21.62 0.0856
2023-11-28 2023-09-30 NP Eastern Bankshares EC US27627N1054 263,000 -7,401 -2.74 3,298 -0.57 0.0860
2023-08-25 2023-06-30 NP Eastern Bankshares EC US27627N1054 270,401 24,914 10.15 3,318 7.07 0.0787
2023-05-26 2023-03-31 NP Eastern Bankshares EC US27627N1054 245,487 -605 -0.25 3,098 -27.02 0.0825
2023-02-24 2022-12-31 NP Eastern Bankshares EC US27627N1054 246,092 -2,160 -0.87 4,245 -12.92 0.1168
2022-11-25 2022-09-30 NP Eastern Bankshares EC US27627N1054 248,252 -264 -0.11 4,876 6.28 0.1397
2022-08-25 2022-06-30 NP Eastern Bankshares EC US27627N1054 248,516 -18,813 -7.04 4,588 -20.34 0.1267
2022-05-26 2022-03-31 NP Eastern Bankshares EC US27627N1054 267,329 5,330 2.03 5,758 8.97 0.1341
2022-02-25 2021-12-31 NP Eastern Bankshares EC US27627N1054 261,999 2,166 0.83 5,285 0.19 0.1146
2021-11-24 2021-09-30 NP Eastern Bankshares EC US27627N1054 259,833 0 0.00 5,275 -1.31 0.1162
2021-08-26 2021-06-30 NP Eastern Bankshares EC US27627N1054 259,833 8,963 3.57 5,345 10.44 0.1147
2021-05-27 2021-03-31 NP Eastern Bankshares EC US27627N1054 250,870 -4,100 -1.61 4,839 16.38 0.1097
2021-02-25 2020-12-31 NP Eastern Bankshares EC US27627N1054 254,970 254,970 4,159 0.1066
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.