Alex Sacerdote Whale Rock Capital Management
Alex Sacerdote is the founder of Whale Rock Capital Management, a technology-focused long/short equity firm. The firm researches software, internet, semiconductors, and other innovation-driven industries with an emphasis on fundamental change. Whale Rock’s holdings often surface in discussions of high-growth technology leadership and cyclical tech opportunity.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Advanced Energy
AEIS
|
+$296M |
| 2 |
MKS Inc
MKSI
|
+$295M |
| 3 |
Lam Research
LRCX
|
+$214M |
| 4 |
Alphabet (Google) Class A
GOOGL
|
+$179M |
| 5 |
Tower Semiconductor
TSEM
|
+$143M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Semtech
SMTC
|
+$287M |
| 2 |
Ciena
CIEN
|
+$203M |
| 3 |
Mercado Libre
MELI
|
+$198M |
| 4 |
Nu Holdings
NU
|
+$180M |
| 5 |
MongoDB
MDB
|
+$126M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 64.36% |
| 2 | Communication Services | 20.03% |
| 3 | Consumer Discretionary | 8.46% |
| 4 | Industrials | 7.15% |
| 5 | Financials | 0% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
1
Alphabet (Google) Class A
GOOGL
$4.22T
| $768M | 9.92% |
2,671,821
+570,898
| +27% | +$179M |
|
|
SNDK
2
Sandisk
SNDK
$234B
| $508M | 6.56% |
799,587
-203,979
| -20% | -$115M |
|
3
Celestica
CLS
$37.4B
| $428M | 5.52% |
1,518,201
-364,190
| -19% | -$106M |
|
4
Amazon
AMZN
$2.79T
| $379M | 4.89% |
1,819,439
-38,439
| -2% | -$8.46M |
|
5
TTM Technologies
TTMI
$11.6B
| $342M | 4.42% |
3,514,560
-761,760
| -18% | -$72.5M |
|
|
6
Advanced Energy
AEIS
$11.4B
| $330M | 4.26% |
+1,022,112
| New | +$296M |
|
7
Fabrinet
FN
$15.6B
| $319M | 4.12% |
611,266
-4,781
| -0.8% | -$2.43M |
|
8
Corning
GLW
$129B
| $312M | 4.03% |
2,297,424
-372,356
| -14% | -$44.9M |
|
|
9
MKS Inc
MKSI
$18.9B
| $300M | 3.88% |
+1,306,724
| New | +$295M |
|
10
Meta Platforms (Facebook)
META
$1.4T
| $293M | 3.79% |
512,569
+42,856
| +9% | +$27.5M |
|
11
JFrog
FROG
$11.4B
| $283M | 3.65% |
6,019,793
+721,981
| +14% | +$35.5M |
|
12
TSMC
TSM
$2.17T
| $277M | 3.58% |
819,445
+226,504
| +38% | +$77.9M |
|
13
Applovin
APP
$102B
| $277M | 3.58% |
695,537
-112,819
| -14% | -$54.5M |
|
14
Carvana
CVNA
$76.9B
| $276M | 3.56% |
4,387,770
-966,240
| -18% | -$71.7M |
|
15
MACOM Technology Solutions
MTSI
$20.4B
| $261M | 3.37% |
1,174,991
+391,686
| +50% | +$87.4M |
|
16
Coherent
COHR
$56.7B
| $232M | 3% |
975,048
-119,709
| -11% | -$27.4M |
|
17
Broadcom
AVGO
$1.75T
| $228M | 2.95% |
737,142
-294,590
| -29% | -$96.9M |
|
18
Bloom Energy
BE
$59.3B
| $224M | 2.89% |
1,653,788
+314,165
| +23% | +$46.1M |
|
|
19
Lam Research
LRCX
$393B
| $205M | 2.64% |
+957,877
| New | +$214M |
|
20
Roblox
RBLX
$27.4B
| $200M | 2.58% |
3,532,184
-572,929
| -14% | -$38.5M |
|
21
SiTime
SITM
$18.5B
| $199M | 2.57% |
576,933
-121,606
| -17% | -$44.7M |
|
|
22
Tower Semiconductor
TSEM
$25.2B
| $187M | 2.42% |
+1,066,737
| New | +$143M |
|
23
NVIDIA
NVDA
$5.2T
| $182M | 2.35% |
1,041,128
-160,567
| -13% | -$29.5M |
|
24
Klaviyo
KVYO
$5.22B
| $133M | 1.72% |
6,825,206
+3,767,317
| +123% | +$80.8M |
|
25
Viavi Solutions
VIAV
$9.6B
| $116M | 1.49% |
+3,473,152
| New | +$91.8M |
|
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Alex Sacerdote's Q1 2026 Portfolio in Review
As of Q1 2026, Alex Sacerdote held 43 positions worth $7.74B, down 1% from $7.82B the previous quarter. Its ten largest holdings account for 51% of the portfolio.
Alex Sacerdote's Q1 2026 filing shows 11 new, 7 increased, 17 reduced and 8 closed positions. Its largest new stake was Advanced Energy: 1,022,112 shares worth $330M. The largest sale was Semtech, an estimated $287M.
By sector, the portfolio is most concentrated in Technology at 64% of assets, up from 59% a quarter earlier, followed by Communication Services and Consumer Discretionary.
- Alex Sacerdote's largest Q1 2026 buy was Advanced Energy: 1,022,112 shares worth $330M.
- Alex Sacerdote added most to Alphabet (Google) Class A in Q1 2026, an estimated $179M increase.
- Alex Sacerdote's biggest Q1 2026 reduction was Ciena, cutting an estimated $203M.
- Alex Sacerdote fully exited Semtech in Q1 2026, selling an estimated $287M.
- Alex Sacerdote's ten largest holdings make up 51% of its $7.74B portfolio in Q1 2026.
- Alex Sacerdote opened 11 new positions and closed 8 in Q1 2026.
- Alex Sacerdote's portfolio value fell 1% quarter-over-quarter to $7.74B.
Based on Whale Rock Capital Management's 13F filing for Q1 2026, filed 15 May 2026.