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Livermore
Livermore
ZHEN

Bruce & Co., Inc.

SEC CIK
0001358331
Latest filing
Aug 14, 2026

MASS holding history

908 Devices Inc. in every 13F filed by Bruce & Co., Inc., including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

MASS overviewAll 13F holders of MASSFull Q2 2026 holdings

Shares (Q2 2026)
68,286
Value
$594.1K
% of portfolio
0.2%
Quarters held
15
Since Q4 2022
Holdings of MASS by Bruce & Co., Inc., by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202668,286$594.1K0.2%00.0%UnchangedHolders
Q1 202668,286$417.9K0.1%00.0%UnchangedHolders
Q4 202568,286$358.5K0.1%00.0%UnchangedHolders
Q3 202568,286$598.2K0.2%00.0%UnchangedHolders
Q2 202568,286$486.9K0.2%00.0%UnchangedHolders
Q1 202568,286$305.9K0.1%00.0%UnchangedHolders
Q4 202468,286$150.2K<0.1%00.0%UnchangedHolders
Q3 202468,286$237.0K0.1%00.0%UnchangedHolders
Q2 202468,286$351.7K0.1%00.0%UnchangedHolders
Q1 202468,286$515.6K0.2%00.0%UnchangedHolders
Q4 202368,286$766.2K0.3%00.0%UnchangedHolders
Q3 202368,286$454.8K0.2%00.0%UnchangedHolders
Q2 202368,286$467.1K0.1%00.0%UnchangedHolders
Q1 202368,286$587.3K0.2%00.0%UnchangedHolders
Q4 202268,286$520.3K0.1%+68,286NewHolders