William Blair & Company’s iShares 1-5 Year Investment Grade Corporate Bond ETF IGSB Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $5.79M | Buy |
110,159
+6,662
| +6% | +$352K | 0.02% | 475 |
|
|
2025
Q4 | $5.47M | Buy |
103,497
+19,234
| +23% | +$1.02M | 0.01% | 492 |
|
|
2025
Q3 | $4.47M | Hold |
84,263
| – | – | 0.01% | 548 |
|
|
2025
Q2 | $4.45M | Sell |
84,263
-4,174
| -5% | -$218K | 0.01% | 522 |
|
|
2025
Q1 | $4.63M | Buy |
88,437
+10,040
| +13% | +$522K | 0.01% | 504 |
|
|
2024
Q4 | $4.05M | Buy |
78,397
+13,425
| +21% | +$698K | 0.01% | 553 |
|
|
2024
Q3 | $3.42M | Buy |
64,972
+699
| +1% | +$36.4K | 0.01% | 589 |
|
|
2024
Q2 | $3.29M | Sell |
64,273
-2,288
| -3% | -$117K | 0.01% | 572 |
|
|
2024
Q1 | $3.41M | Buy |
66,561
+3,617
| +6% | +$185K | 0.01% | 561 |
|
|
2023
Q4 | $3.23M | Sell |
62,944
-1,651
| -3% | -$82.9K | 0.01% | 558 |
|
|
2023
Q3 | $3.22M | Sell |
64,595
-3,291
| -5% | -$165K | 0.01% | 543 |
|
|
2023
Q2 | $3.41M | Sell |
67,886
-2,076
| -3% | -$105K | 0.01% | 532 |
|
|
2023
Q1 | $3.54M | Buy |
69,962
+9,131
| +15% | +$458K | 0.01% | 519 |
|
|
2022
Q4 | $3.03M | Sell |
60,831
-8,169
| -12% | -$404K | 0.01% | 538 |
|
|
2022
Q3 | $3.4M | Buy |
69,000
+28,716
| +71% | +$1.45M | 0.02% | 502 |
|
|
2022
Q2 | $2.04M | Buy |
40,284
+10,976
| +37% | +$559K | 0.01% | 637 |
|
|
2022
Q1 | $1.52M | Sell |
29,308
-32,944
| -53% | -$1.74M | 0.01% | 774 |
|
|
2021
Q4 | $3.35M | Sell |
62,252
-4,675
| -7% | -$253K | 0.01% | 584 |
|
|
2021
Q3 | $3.66M | Sell |
66,927
-2,582
| -4% | -$141K | 0.01% | 530 |
|
|
2021
Q2 | $3.81M | Sell |
69,509
-5,166
| -7% | -$283K | 0.01% | 527 |
|
|
2021
Q1 | $4.08M | Buy |
74,675
+5,418
| +8% | +$298K | 0.02% | 500 |
|
|
2020
Q4 | $3.82M | Buy |
69,257
+9,485
| +16% | +$521K | 0.01% | 494 |
|
|
2020
Q3 | $3.28M | Buy |
59,772
+28,556
| +91% | +$1.57M | 0.01% | 480 |
|
|
2020
Q2 | $1.71M | Buy |
31,216
+971
| +3% | +$52.3K | 0.01% | 593 |
|
|
2020
Q1 | $1.58M | Sell |
30,245
-8,773
| -22% | -$467K | 0.01% | 564 |
|
|
2019
Q4 | $2.09M | Buy |
39,018
+1,220
| +3% | +$65.4K | 0.01% | 592 |
|
|
2019
Q3 | $3.92M | Buy |
37,798
+1,763
| +5% | +$94.3K | 0.02% | 422 |
|
|
2019
Q2 | $3.74M | Buy |
36,035
+5,921
| +20% | +$313K | 0.02% | 442 |
|
|
2019
Q1 | $3.12M | Buy |
30,114
+4,036
| +15% | +$211K | 0.02% | 450 |
|
|
2018
Q4 | $2.7M | Buy |
26,078
+3,562
| +16% | +$184K | 0.02% | 456 |
|
|
2018
Q3 | $1.17M | Sell |
22,516
-3,730
| -14% | -$193K | 0.01% | 693 |
|
|
2018
Q2 | $1.36M | Buy |
26,246
+2,246
| +9% | +$116K | 0.01% | 637 |
|
|
2018
Q1 | $1.25M | Sell |
24,000
-500
| -2% | -$26K | 0.01% | 648 |
|
|
2017
Q4 | $1.28M | Sell |
24,500
-300
| -1% | -$15.7K | 0.01% | 677 |
|
|
2017
Q3 | $1.31M | Buy |
24,800
+2,480
| +11% | +$131K | 0.01% | 660 |
|
|
2017
Q2 | $1.18M | Sell |
22,320
-1,170
| -5% | -$61.6K | 0.01% | 708 |
|
|
2017
Q1 | $1.24M | Sell |
23,490
-900
| -4% | -$47.3K | 0.01% | 651 |
|
|
2016
Q4 | $1.28M | Buy |
24,390
+6,190
| +34% | +$326K | 0.01% | 592 |
|
|
2016
Q3 | $962K | Sell |
18,200
-2,500
| -12% | -$132K | 0.01% | 659 |
|
|
2016
Q2 | $1.1M | Buy |
20,700
+5,110
| +33% | +$270K | 0.01% | 613 |
|
|
2016
Q1 | $822K | Hold |
15,590
| – | – | 0.01% | 665 |
|
|
2015
Q4 | $815K | Hold |
15,590
| – | – | 0.01% | 674 |
|
|
2015
Q3 | $819K | Hold |
15,590
| – | – | 0.01% | 811 |
|
|
2015
Q2 | $821K | Hold |
15,590
| – | – | ﹤0.01% | 1626 |
|
|
2015
Q1 | $823K | Hold |
15,590
| – | – | ﹤0.01% | 1593 |
|
|
2014
Q4 | $820K | Hold |
15,590
| – | – | ﹤0.01% | 1550 |
|
|
2014
Q3 | $821K | Sell |
15,590
-3,818
| -20% | -$201K | ﹤0.01% | 1539 |
|
|
2014
Q2 | $1.03M | Sell |
19,408
-68,388
| -78% | -$3.61M | ﹤0.01% | 1451 |
|
|
2014
Q1 | $4.63M | Buy |
87,796
+75,186
| +596% | +$3.97M | 0.01% | 993 |
|
|
2013
Q4 | $665K | Sell |
12,610
-1,200
| -9% | -$63.2K | ﹤0.01% | 1501 |
|
|
2013
Q3 | $727K | Buy |
13,810
+720
| +6% | +$37.8K | ﹤0.01% | 1433 |
|
|
2013
Q2 | $687K | Buy |
+13,090
| New | +$690K | ﹤0.01% | 1400 |
|
Other funds holding IGSB
MMI
EWA
B
William Blair & Company's IGSB Position: Q1 2026 in Review
William Blair & Company increased its iShares 1-5 Year Investment Grade Corporate Bond ETF (IGSB) stake by 6.4% in Q1 2026, buying an estimated $352K and bringing the position to 110,159 shares worth $5.79M. The position accounts for 0.02% of the portfolio, ranked #475.
William Blair & Company first reported a position in IGSB in Q2 2013 and has held it in 52 quarters since. 1,013 funds tracked by Wall St. Rank hold IGSB as of Q1 2026.
- William Blair & Company held 110,159 shares of iShares 1-5 Year Investment Grade Corporate Bond ETF worth $5.79M as of Q1 2026.
- William Blair & Company bought 6,662 iShares 1-5 Year Investment Grade Corporate Bond ETF shares in Q1 2026, an estimated $352K.
- iShares 1-5 Year Investment Grade Corporate Bond ETF made up 0.02% of William Blair & Company's portfolio in Q1 2026, its #475 holding.
- William Blair & Company first reported a position in iShares 1-5 Year Investment Grade Corporate Bond ETF in Q2 2013 and has held it in 52 quarters since.
- 1,013 funds tracked by Wall St. Rank held iShares 1-5 Year Investment Grade Corporate Bond ETF as of Q1 2026.
Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.