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William Blair & Company Portfolio holdings
AUM
$38.4B
1-Year Est. Return
25.71%
This Fund
S&P 500
This Quarter
Est. Return
+14.12%
1 Year Est. Return
+25.71%
3 Year Est. Return
+88.7%
5 Year Est. Return
+104.53%
10 Year Est. Return
+665.86%
AUM
$29.3B
AUM Growth
+$3.27B
(+13%)
Cap. Flow
-$91M
Cap. Flow
% of AUM
-0.31%
Top 10 Holdings %
Top 10 Hldgs %
24.41%
Holding
1,872
New
83
Increased
624
Reduced
816
Closed
87
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Guidewire Software
GWRE
|
+$37.5M |
| 2 |
SCHW
Charles Schwab
SCHW
|
+$37.1M |
| 3 |
Veralto
VLTO
|
+$17.1M |
| 4 |
Vertex Pharmaceuticals
VRTX
|
+$16.7M |
| 5 |
CoStar Group
CSGP
|
+$16.3M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Danaher
DHR
|
+$37.6M |
| 2 |
iRhythm Holdings
IRTC
|
+$26.7M |
| 3 |
Deere & Co
DE
|
+$22.6M |
| 4 |
Toast
TOST
|
+$21.2M |
| 5 |
Coca-Cola
KO
|
+$20.3M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 26.35% |
| 2 | Healthcare | 17.08% |
| 3 | Financials | 12.09% |
| 4 | Industrials | 11.7% |
| 5 | Consumer Discretionary | 8.53% |
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William Blair & Company's Q4 2023 Portfolio in Review
As of Q4 2023, William Blair & Company held 1,872 positions worth $29.3B, up 13% from $26.1B the previous quarter. Its ten largest holdings account for 24% of the portfolio.
William Blair & Company's Q4 2023 filing shows 83 new, 624 increased, 816 reduced and 87 closed positions. Its largest new stake was Veralto: 229,539 shares worth $18.9M. The largest sale was Danaher, an estimated $37.6M.
By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 25% a quarter earlier, followed by Healthcare and Financials.
- William Blair & Company's largest Q4 2023 buy was Veralto: 229,539 shares worth $18.9M.
- William Blair & Company added most to Guidewire Software in Q4 2023, an estimated $37.5M increase.
- William Blair & Company's biggest Q4 2023 reduction was Danaher, cutting an estimated $37.6M.
- William Blair & Company fully exited Seagen Inc. Common Stock in Q4 2023, selling an estimated $13.8M.
- William Blair & Company's ten largest holdings make up 24% of its $29.3B portfolio in Q4 2023.
- William Blair & Company opened 83 new positions and closed 87 in Q4 2023.
- William Blair & Company's portfolio value rose 13% quarter-over-quarter to $29.3B.
Based on William Blair & Company's 13F filing for Q4 2023, filed 12 Feb 2024.