Great Diamond Partners’s iShares MBS ETF MBB Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
Sell
-24,397
Closed -$2.32M 244
2025
Q4
$2.32M Buy
24,397
+1,440
+6% +$137K 0.45% 70
2025
Q3
$2.18M Buy
22,957
+2,947
+15% +$277K 0.42% 72
2025
Q2
$1.88M Buy
+20,010
New +$1.85M 0.4% 71
2020
Q1
Sell
-197
Closed -$21K 405
2019
Q4
$21K Buy
+197
New +$21.3K 0.01% 467

Other funds holding MBB

Great Diamond Partners's MBB Position: Q1 2026 in Review

Great Diamond Partners sold out of iShares MBS ETF (MBB) in Q1 2026, closing a stake of 24,397 shares — an estimated $2.32M sold.

Great Diamond Partners first reported a position in MBB in Q4 2019 and held it in 4 quarters. The position peaked at $2.32M in Q4 2025. 1,021 funds tracked by Wall St. Rank hold MBB as of Q1 2026.

  • Great Diamond Partners reported no remaining iShares MBS ETF position as of Q1 2026 after selling out during the quarter.
  • Great Diamond Partners sold 24,397 iShares MBS ETF shares in Q1 2026, an estimated $2.32M.
  • Great Diamond Partners first reported a position in iShares MBS ETF in Q4 2019 and held it in 4 quarters.
  • Great Diamond Partners's iShares MBS ETF position peaked at $2.32M in Q4 2025.
  • 1,021 funds tracked by Wall St. Rank held iShares MBS ETF as of Q1 2026.

Based on Great Diamond Partners's 13F filing for Q1 2026, filed 12 May 2026.