William Blair & Company’s Palo Alto Networks PANW Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $209M | Buy |
1,304,858
+54,486
| +4% | +$9.15M | 0.6% | 39 |
|
|
2025
Q4 | $230M | Buy |
1,250,372
+12,508
| +1% | +$2.52M | 0.62% | 34 |
|
|
2025
Q3 | $252M | Buy |
1,237,864
+79,978
| +7% | +$15.3M | 0.67% | 32 |
|
|
2025
Q2 | $237M | Sell |
1,157,886
-20,762
| -2% | -$3.86M | 0.66% | 38 |
|
|
2025
Q1 | $201M | Sell |
1,178,648
-125,379
| -10% | -$23.2M | 0.61% | 45 |
|
|
2024
Q4 | $237M | Buy |
1,304,027
+11,167
| +0.9% | +$2.11M | 0.69% | 35 |
|
|
2024
Q3 | $221M | Buy |
1,292,860
+39,258
| +3% | +$6.61M | 0.65% | 41 |
|
|
2024
Q2 | $212M | Buy |
1,253,602
+6,682
| +0.5% | +$999K | 0.66% | 34 |
|
|
2024
Q1 | $177M | Buy |
1,246,920
+1,478
| +0.1% | +$233K | 0.56% | 47 |
|
|
2023
Q4 | $184M | Sell |
1,245,442
-3,876
| -0.3% | -$518K | 0.63% | 39 |
|
|
2023
Q3 | $146M | Buy |
1,249,318
+151,822
| +14% | +$18M | 0.56% | 43 |
|
|
2023
Q2 | $140M | Sell |
1,097,496
-66,088
| -6% | -$6.88M | 0.51% | 47 |
|
|
2023
Q1 | $116M | Buy |
1,163,584
+8,374
| +0.7% | +$710K | 0.46% | 50 |
|
|
2022
Q4 | $80.6M | Buy |
1,155,210
+288,864
| +33% | +$23.2M | 0.35% | 73 |
|
|
2022
Q3 | $70.9M | Buy |
866,346
+18,546
| +2% | +$1.61M | 0.33% | 79 |
|
|
2022
Q2 | $69.8M | Sell |
847,800
-31,014
| -4% | -$2.75M | 0.31% | 81 |
|
|
2022
Q1 | $91.2M | Buy |
878,814
+215,244
| +32% | +$19.3M | 0.32% | 76 |
|
|
2021
Q4 | $61.6M | Buy |
663,570
+40,836
| +7% | +$3.53M | 0.19% | 118 |
|
|
2021
Q3 | $49.7M | Buy |
622,734
+7,548
| +1% | +$530K | 0.17% | 129 |
|
|
2021
Q2 | $38M | Buy |
615,186
+12,252
| +2% | +$726K | 0.13% | 154 |
|
|
2021
Q1 | $32.4M | Buy |
602,934
+53,592
| +10% | +$3.19M | 0.12% | 162 |
|
|
2020
Q4 | $32.5M | Buy |
549,342
+13,950
| +3% | +$652K | 0.12% | 163 |
|
|
2020
Q3 | $21.8M | Buy |
535,392
+49,728
| +10% | +$2.07M | 0.09% | 181 |
|
|
2020
Q2 | $18.6M | Sell |
485,664
-26,970
| -5% | -$950K | 0.09% | 189 |
|
|
2020
Q1 | $14M | Sell |
512,634
-294,438
| -36% | -$10.3M | 0.09% | 188 |
|
|
2019
Q4 | $31.1M | Buy |
807,072
+24,666
| +3% | +$933K | 0.16% | 139 |
|
|
2019
Q3 | $26.6M | Buy |
782,406
+25,152
| +3% | +$890K | 0.15% | 141 |
|
|
2019
Q2 | $25.7M | Buy |
757,254
+212,346
| +39% | +$7.94M | 0.15% | 139 |
|
|
2019
Q1 | $22.1M | Buy |
544,908
+104,142
| +24% | +$3.86M | 0.13% | 154 |
|
|
2018
Q4 | $13.8M | Sell |
440,766
-10,020
| -2% | -$312K | 0.1% | 191 |
|
|
2018
Q3 | $16.9M | Sell |
450,786
-13,338
| -3% | -$486K | 0.1% | 186 |
|
|
2018
Q2 | $15.9M | Buy |
464,124
+7,740
| +2% | +$258K | 0.11% | 182 |
|
|
2018
Q1 | $13.8M | Buy |
456,384
+39,480
| +9% | +$1.1M | 0.1% | 194 |
|
|
2017
Q4 | $10.1M | Buy |
416,904
+13,818
| +3% | +$336K | 0.07% | 249 |
|
|
2017
Q3 | $9.68M | Sell |
403,086
-69,318
| -15% | -$1.58M | 0.07% | 237 |
|
|
2017
Q2 | $10.5M | Sell |
472,404
-857,964
| -64% | -$17.3M | 0.08% | 230 |
|
|
2017
Q1 | $33.5M | Buy |
1,330,368
+33,036
| +3% | +$739K | 0.27% | 97 |
|
|
2016
Q4 | $27M | Sell |
1,297,332
-995,196
| -43% | -$23.8M | 0.24% | 109 |
|
|
2016
Q3 | $60.9M | Sell |
2,292,528
-19,938
| -0.9% | -$454K | 0.54% | 50 |
|
|
2016
Q2 | $47.3M | Sell |
2,312,466
-14,844
| -0.6% | -$344K | 0.44% | 66 |
|
|
2016
Q1 | $63.3M | Buy |
2,327,310
+333,714
| +17% | +$8.2M | 0.6% | 47 |
|
|
2015
Q4 | $58.5M | Buy |
1,993,596
+47,538
| +2% | +$1.37M | 0.55% | 48 |
|
|
2015
Q3 | $55.8M | Buy |
1,946,058
+562,734
| +41% | +$16.6M | 0.48% | 54 |
|
|
2015
Q2 | $40.3M | Buy |
1,383,324
+83,898
| +6% | +$2.24M | 0.06% | 404 |
|
|
2015
Q1 | $31.6M | Sell |
1,299,426
-61,920
| -5% | -$1.39M | 0.05% | 439 |
|
|
2014
Q4 | $27.8M | Buy |
1,361,346
+498,942
| +58% | +$9.2M | 0.04% | 480 |
|
|
2014
Q3 | $14.1M | Buy |
862,404
+193,440
| +29% | +$2.78M | 0.02% | 716 |
|
|
2014
Q2 | $9.35M | Buy |
668,964
+250,818
| +60% | +$2.93M | 0.02% | 864 |
|
|
2014
Q1 | $4.78M | Buy |
418,146
+153,906
| +58% | +$1.75M | 0.01% | 986 |
|
|
2013
Q4 | $2.53M | Buy |
264,240
+114,720
| +77% | +$909K | ﹤0.01% | 1107 |
|
|
2013
Q3 | $1.14M | Buy |
149,520
+108,720
| +266% | +$857K | ﹤0.01% | 1295 |
|
|
2013
Q2 | $286K | Buy |
+40,800
| New | +$340K | ﹤0.01% | 1690 |
|
Other funds holding PANW
VCM
VPM
William Blair & Company's PANW Position: Q1 2026 in Review
William Blair & Company increased its Palo Alto Networks (PANW) stake by 4.4% in Q1 2026, buying an estimated $9.15M and bringing the position to 1,304,858 shares worth $209M. The position accounts for 0.6% of the portfolio, ranked #39.
William Blair & Company first reported a position in PANW in Q2 2013 and has held it in 52 quarters since. The position peaked at $252M in Q3 2025. 2,460 funds tracked by Wall St. Rank hold PANW as of Q1 2026.
- William Blair & Company held 1,304,858 shares of Palo Alto Networks worth $209M as of Q1 2026.
- William Blair & Company bought 54,486 Palo Alto Networks shares in Q1 2026, an estimated $9.15M.
- Palo Alto Networks made up 0.6% of William Blair & Company's portfolio in Q1 2026, its #39 holding.
- William Blair & Company first reported a position in Palo Alto Networks in Q2 2013 and has held it in 52 quarters since.
- William Blair & Company's Palo Alto Networks position peaked at $252M in Q3 2025.
- 2,460 funds tracked by Wall St. Rank held Palo Alto Networks as of Q1 2026.
Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.