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Vanguard Group Inc

SEC CIK
0000102909
Latest filing
Jan 29, 2026

MACK holding history

Merrimack Pharmaceuticals Inc in every 13F filed by Vanguard Group Inc, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

MACK overviewAll 13F holders of MACKFull Q4 2025 holdings

Shares (Q2 2024)
0
Sold out in Q2 2024
Value
$0
% of portfolio
0.0%
Quarters held
13
Since Q1 2021
Holdings of MACK by Vanguard Group Inc, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20240$00.0%−620,847−100.0%Sold outHolders
Q1 2024620,847$9.17M<0.1%+11,893+2.0%AddedHolders
Q4 2023608,954$8.17M<0.1%+8,610+1.4%AddedHolders
Q3 2023600,344$7.40M<0.1%+43,546+7.8%AddedHolders
Q2 2023556,798$6.85M<0.1%+98,277+21.4%AddedHolders
Q1 2023458,521$5.64M<0.1%−129,500−22.0%ReducedHolders
Q4 2022588,021$6.74M<0.1%−19,783−3.3%ReducedHolders
Q3 2022607,804$2.28M<0.1%−400−0.1%ReducedHolders
Q2 2022608,204$3.62M<0.1%00.0%UnchangedHolders
Q1 2022608,204$3.85M<0.1%−8,644−1.4%ReducedHolders
Q4 2021616,848$2.41M<0.1%−1,761−0.3%ReducedHolders
Q3 2021618,609$2.99M<0.1%00.0%UnchangedHolders
Q2 2021618,609$3.95M<0.1%00.0%UnchangedHolders
Q1 2021618,609$3.88M<0.1%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.