William Blair & Company’s iShares Preferred and Income Securities ETF PFF Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $1.67M | Buy |
55,117
+5,760
| +12% | +$180K | ﹤0.01% | 787 |
|
|
2025
Q4 | $1.53M | Buy |
49,357
+1,740
| +4% | +$54.2K | ﹤0.01% | 819 |
|
|
2025
Q3 | $1.51M | Buy |
47,617
+10,952
| +30% | +$344K | ﹤0.01% | 807 |
|
|
2025
Q2 | $1.12M | Buy |
36,665
+6,191
| +20% | +$186K | ﹤0.01% | 860 |
|
|
2025
Q1 | $936K | Sell |
30,474
-356
| -1% | -$11.2K | ﹤0.01% | 902 |
|
|
2024
Q4 | $969K | Sell |
30,830
-7,826
| -20% | -$256K | ﹤0.01% | 914 |
|
|
2024
Q3 | $1.28M | Sell |
38,656
-2,245
| -5% | -$72.3K | ﹤0.01% | 832 |
|
|
2024
Q2 | $1.29M | Buy |
40,901
+1,281
| +3% | +$40.3K | ﹤0.01% | 805 |
|
|
2024
Q1 | $1.28M | Sell |
39,620
-9,415
| -19% | -$300K | ﹤0.01% | 797 |
|
|
2023
Q4 | $1.53M | Sell |
49,035
-5,875
| -11% | -$176K | 0.01% | 737 |
|
|
2023
Q3 | $1.66M | Buy |
54,910
+2,953
| +6% | +$90.3K | 0.01% | 705 |
|
|
2023
Q2 | $1.61M | Buy |
51,957
+2,899
| +6% | +$88.7K | 0.01% | 712 |
|
|
2023
Q1 | $1.53M | Sell |
49,058
-6,957
| -12% | -$223K | 0.01% | 719 |
|
|
2022
Q4 | $1.71M | Sell |
56,015
-4,969
| -8% | -$155K | 0.01% | 673 |
|
|
2022
Q3 | $1.93M | Sell |
60,984
-1,895
| -3% | -$63.5K | 0.01% | 628 |
|
|
2022
Q2 | $2.07M | Sell |
62,879
-188,109
| -75% | -$6.37M | 0.01% | 633 |
|
|
2022
Q1 | $9.14M | Sell |
250,988
-61,435
| -20% | -$2.26M | 0.03% | 341 |
|
|
2021
Q4 | $12.3M | Buy |
312,423
+237,647
| +318% | +$9.24M | 0.04% | 310 |
|
|
2021
Q3 | $2.9M | Buy |
74,776
+1,148
| +2% | +$45K | 0.01% | 604 |
|
|
2021
Q2 | $2.9M | Sell |
73,628
-870
| -1% | -$33.7K | 0.01% | 596 |
|
|
2021
Q1 | $2.86M | Sell |
74,498
-22,175
| -23% | -$841K | 0.01% | 586 |
|
|
2020
Q4 | $3.72M | Buy |
96,673
+33,063
| +52% | +$1.24M | 0.01% | 500 |
|
|
2020
Q3 | $2.32M | Buy |
63,610
+2,141
| +3% | +$77K | 0.01% | 552 |
|
|
2020
Q2 | $2.13M | Sell |
61,469
-563
| -0.9% | -$19.2K | 0.01% | 546 |
|
|
2020
Q1 | $1.98M | Sell |
62,032
-3,185
| -5% | -$114K | 0.01% | 513 |
|
|
2019
Q4 | $2.45M | Sell |
65,217
-5,985
| -8% | -$223K | 0.01% | 552 |
|
|
2019
Q3 | $2.67M | Sell |
71,202
-2,468
| -3% | -$91.8K | 0.02% | 512 |
|
|
2019
Q2 | $2.71M | Buy |
73,670
+2,987
| +4% | +$109K | 0.02% | 502 |
|
|
2019
Q1 | $2.58M | Sell |
70,683
-2,269
| -3% | -$81.5K | 0.02% | 495 |
|
|
2018
Q4 | $2.5M | Sell |
72,952
-7,143
| -9% | -$253K | 0.02% | 473 |
|
|
2018
Q3 | $2.97M | Sell |
80,095
-761
| -0.9% | -$28.6K | 0.02% | 475 |
|
|
2018
Q2 | $3.05M | Sell |
80,856
-1,015
| -1% | -$37.8K | 0.02% | 467 |
|
|
2018
Q1 | $3.08M | Sell |
81,871
-6,589
| -7% | -$247K | 0.02% | 462 |
|
|
2017
Q4 | $3.37M | Sell |
88,460
-10,802
| -11% | -$415K | 0.02% | 447 |
|
|
2017
Q3 | $3.85M | Sell |
99,262
-32,638
| -25% | -$1.27M | 0.03% | 400 |
|
|
2017
Q2 | $5.17M | Sell |
131,900
-16,328
| -11% | -$635K | 0.04% | 334 |
|
|
2017
Q1 | $5.74M | Sell |
148,228
-3,366
| -2% | -$129K | 0.05% | 298 |
|
|
2016
Q4 | $5.64M | Buy |
151,594
+5,668
| +4% | +$215K | 0.05% | 283 |
|
|
2016
Q3 | $5.76M | Buy |
145,926
+26,242
| +22% | +$1.05M | 0.05% | 288 |
|
|
2016
Q2 | $4.77M | Buy |
119,684
+96,184
| +409% | +$3.77M | 0.04% | 295 |
|
|
2016
Q1 | $917K | Buy |
23,500
+3,500
| +18% | +$134K | 0.01% | 632 |
|
|
2015
Q4 | $777K | Sell |
20,000
-11,000
| -35% | -$428K | 0.01% | 689 |
|
|
2015
Q3 | $1.2M | Sell |
31,000
-7,250
| -19% | -$283K | 0.01% | 699 |
|
|
2015
Q2 | $1.5M | Buy |
38,250
+1,000
| +3% | +$39.7K | ﹤0.01% | 1450 |
|
|
2015
Q1 | $1.49M | Sell |
37,250
-800
| -2% | -$31.9K | ﹤0.01% | 1420 |
|
|
2014
Q4 | $1.5M | Sell |
38,050
-5,270
| -12% | -$208K | ﹤0.01% | 1365 |
|
|
2014
Q3 | $1.71M | Sell |
43,320
-75,430
| -64% | -$2.99M | ﹤0.01% | 1308 |
|
|
2014
Q2 | $4.74M | Sell |
118,750
-13,780
| -10% | -$543K | 0.01% | 1014 |
|
|
2014
Q1 | $5.17M | Sell |
132,530
-64,415
| -33% | -$2.46M | 0.01% | 971 |
|
|
2013
Q4 | $7.25M | Sell |
196,945
-84,835
| -30% | -$3.2M | 0.01% | 861 |
|
|
2013
Q3 | $10.7M | Sell |
281,780
-37,730
| -12% | -$1.44M | 0.02% | 707 |
|
|
2013
Q2 | $12.5M | Buy |
+319,510
| New | +$12.8M | 0.02% | 622 |
|
Other funds holding PFF
FIB
William Blair & Company's PFF Position: Q1 2026 in Review
William Blair & Company increased its iShares Preferred and Income Securities ETF (PFF) stake by 12% in Q1 2026, buying an estimated $180K and bringing the position to 55,117 shares worth $1.67M. The position accounts for ﹤0.01% of the portfolio, ranked #787.
William Blair & Company first reported a position in PFF in Q2 2013 and has held it in 52 quarters since. The position peaked at $12.5M in Q2 2013. 966 funds tracked by Wall St. Rank hold PFF as of Q1 2026.
- William Blair & Company held 55,117 shares of iShares Preferred and Income Securities ETF worth $1.67M as of Q1 2026.
- William Blair & Company bought 5,760 iShares Preferred and Income Securities ETF shares in Q1 2026, an estimated $180K.
- iShares Preferred and Income Securities ETF made up ﹤0.01% of William Blair & Company's portfolio in Q1 2026, its #787 holding.
- William Blair & Company first reported a position in iShares Preferred and Income Securities ETF in Q2 2013 and has held it in 52 quarters since.
- William Blair & Company's iShares Preferred and Income Securities ETF position peaked at $12.5M in Q2 2013.
- 966 funds tracked by Wall St. Rank held iShares Preferred and Income Securities ETF as of Q1 2026.
Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.