William Blair & Company
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William Blair & Company’s Vanguard Mortgage-Backed Securities ETF VMBS Stock Holding History

William Blair & Company’s Portfolio VMBS Stock Details VMBS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$106K Sell
2,266
-164
-7% -$7.67K ﹤0.01% 1675
2026
Q1 		$114K Sell
2,430
-1,352
-36% -$63.8K ﹤0.01% 1574
2025
Q4 		$178K Buy
3,782
+52
+1% +$2.45K ﹤0.01% 1487
2025
Q3 		$175K Sell
3,730
-1,281
-26% -$59.5K ﹤0.01% 1485
2025
Q2 		$232K Buy
5,011
+124
+3% +$5.67K ﹤0.01% 1362
2025
Q1 		$226K Sell
4,887
-1,051
-18% -$48.1K ﹤0.01% 1363
2024
Q4 		$269K Buy
5,938
+2,865
+93% +$132K ﹤0.01% 1328
2024
Q3 		$145K Sell
3,073
-1,040
-25% -$48.5K ﹤0.01% 1492
2024
Q2 		$187K Sell
4,113
-621
-13% -$27.9K ﹤0.01% 1429
2024
Q1 		$216K Buy
4,734
+447
+10% +$20.4K ﹤0.01% 1379
2023
Q4 		$199K Buy
4,287
+126
+3% +$5.57K ﹤0.01% 1404
2023
Q3 		$182K Buy
4,161
+1,603
+63% +$72.2K ﹤0.01% 1406
2023
Q2 		$118K Sell
2,558
-88
-3% -$4.07K ﹤0.01% 1495
2023
Q1 		$123K Sell
2,646
-4,989
-65% -$232K ﹤0.01% 1473
2022
Q4 		$348K Buy
7,635
+4,086
+115% +$185K ﹤0.01% 1168
2022
Q3 		$160K Sell
3,549
-28
-0.8% -$1.33K ﹤0.01% 1435
2022
Q2 		$171K Buy
3,577
+432
+14% +$20.8K ﹤0.01% 1459
2022
Q1 		$158K Sell
3,145
-915
-23% -$47K ﹤0.01% 1570
2021
Q4 		$215K Sell
4,060
-246
-6% -$13K ﹤0.01% 1542
2021
Q3 		$229K Sell
4,306
-1,621
-27% -$86.6K ﹤0.01% 1433
2021
Q2 		$316K Buy
5,927
+924
+18% +$49.4K ﹤0.01% 1327
2021
Q1 		$267K Sell
5,003
-7
-0.1% -$377 ﹤0.01% 1374
2020
Q4 		$271K Sell
5,010
-1,327
-21% -$71.8K ﹤0.01% 1313
2020
Q3 		$344K Buy
6,337
+2,446
+63% +$133K ﹤0.01% 1089
2020
Q2 		$212K Sell
3,891
-35
-0.9% -$1.91K ﹤0.01% 1221
2020
Q1 		$214K Sell
3,926
-354
-8% -$18.9K ﹤0.01% 1143
2019
Q4 		$228K Buy
4,280
+730
+21% +$38.8K ﹤0.01% 1260
2019
Q3 		$189K Buy
3,550
+28
+0.8% +$1.49K ﹤0.01% 1280
2019
Q2 		$186K Sell
3,522
-1,012
-22% -$52.9K ﹤0.01% 1324
2019
Q1 		$237K Sell
4,534
-1,607
-26% -$83.2K ﹤0.01% 1243
2018
Q4 		$324K Buy
+6,141
New +$312K ﹤0.01% 1063

Other funds holding VMBS

Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Envestnet Asset Management
Envestnet Asset Management Chicago, Illinois $424B AUM 22.96% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return
Stifel Financial
Stifel Financial St. Louis, Missouri $120B AUM 27.84% 1-Year Est. Return
Wells Fargo
Wells Fargo San Francisco, California $617B AUM 30.33% 1-Year Est. Return
AssetMark Inc
AssetMark Inc Concord, California $58.2B AUM 22.78% 1-Year Est. Return
MG
Mather Group Chicago, Illinois $11.5B AUM 18.82% 1-Year Est. Return
Raymond James Financial
Raymond James Financial St Petersburg, Florida $369B AUM 28.27% 1-Year Est. Return
LPL Financial
LPL Financial San Diego, California $445B AUM 25.58% 1-Year Est. Return

William Blair & Company's VMBS Position: Q2 2026 in Review

William Blair & Company reduced its Vanguard Mortgage-Backed Securities ETF (VMBS) stake by 6.7% in Q2 2026, selling an estimated $7.67K and leaving 2,266 shares worth $106K. The position accounts for ﹤0.01% of the portfolio, ranked #1675.

William Blair & Company first reported a position in VMBS in Q4 2018 and has held it in 31 quarters since. The position peaked at $348K in Q4 2022. 711 funds tracked by Wall St. Rank hold VMBS as of Q2 2026.

  • William Blair & Company held 2,266 shares of Vanguard Mortgage-Backed Securities ETF worth $106K as of Q2 2026.
  • William Blair & Company sold 164 Vanguard Mortgage-Backed Securities ETF shares in Q2 2026, an estimated $7.67K.
  • Vanguard Mortgage-Backed Securities ETF made up ﹤0.01% of William Blair & Company's portfolio in Q2 2026, its #1675 holding.
  • William Blair & Company first reported a position in Vanguard Mortgage-Backed Securities ETF in Q4 2018 and has held it in 31 quarters since.
  • William Blair & Company's Vanguard Mortgage-Backed Securities ETF position peaked at $348K in Q4 2022.
  • 711 funds tracked by Wall St. Rank held Vanguard Mortgage-Backed Securities ETF as of Q2 2026.

Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.