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 Micro Devices
AMD
|
+$591M |
| 2 |
Astera Labs
ALAB
|
+$416M |
| 3 |
Viavi Solutions
VIAV
|
+$163M |
| 4 |
Snowflake
SNOW
|
+$163M |
| 5 |
Amazon
AMZN
|
+$158M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Advanced Energy
AEIS
|
+$330M |
| 2 |
SNDK
Sandisk
SNDK
|
+$290M |
| 3 |
Broadcom
AVGO
|
+$272M |
| 4 |
Roblox
RBLX
|
+$200M |
| 5 |
Tower Semiconductor
TSEM
|
+$187M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 78.1% |
| 2 | Communication Services | 10.85% |
| 3 | Consumer Discretionary | 6.94% |
| 4 | Industrials | 4.12% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
26
Klaviyo
KVYO
$5.22B
| $83.5M | 0.67% |
5,528,166
-1,297,040
| -19% | -$21.5M |
|
27
NVIDIA
NVDA
$5.2T
| $75.5M | 0.61% |
377,204
-663,924
| -64% | -$137M |
|
28
MongoDB
MDB
$34.7B
| $75.5M | 0.61% |
224,648
| – | – |
|
29
Impinj
PI
$5.06B
| $58M | 0.47% |
405,244
| – | – |
|
30
Duolingo
DUOL
$6.84B
| $54.3M | 0.44% |
471,764
| – | – |
|
31
Intel
INTC
$476B
| $36.3M | 0.29% |
+259,903
| New | +$26.3M |
|
32
Apple
AAPL
$4.51T
| $28.9M | 0.23% |
99,766
+3,153
| +3% | +$902K |
|
|
SPCX
33
SpaceX
SPCX
$1.81T
| $26.1M | 0.21% |
+152,517
| New | +$25.9M |
|
|
34
Broadcom
AVGO
$1.75T
| $22.6M | 0.18% |
59,780
-677,362
| -92% | -$272M |
|
|
CBRS
35
Cerebras Systems
CBRS
$46.6B
| $11.2M | 0.09% |
+50,696
| New | +$11.9M |
|
|
36
Advanced Energy
AEIS
$11.4B
| – | – |
-1,022,112
| Closed | -$330M |
|
37
Arm
ARM
$260B
| – | – |
-452,384
| Closed | -$68.4M |
|
38
Ciena
CIEN
$56B
| – | – |
-231,267
| Closed | -$89.8M |
|
39
Microsoft
MSFT
$3.59T
| – | – |
-53,850
| Closed | -$19.9M |
|
40
Netflix
NFLX
$331B
| – | – |
-131,960
| Closed | -$12.7M |
|
|
41
Roblox
RBLX
$27.4B
| – | – |
-3,532,184
| Closed | -$200M |
|
|
42
Tower Semiconductor
TSEM
$25.2B
| – | – |
-1,066,737
| Closed | -$187M |
|
Similar funds
Alex Sacerdote's Q2 2026 Portfolio in Review
As of Q2 2026, Alex Sacerdote held 42 positions worth $12.5B, up 61% from $7.74B the previous quarter. Its ten largest holdings account for 59% of the portfolio.
Alex Sacerdote's Q2 2026 filing shows 7 new, 7 increased, 18 reduced and 7 closed positions. Its largest new stake was Astera Labs: 1,567,882 shares worth $757M. The largest sale was Advanced Energy, an estimated $330M.
By sector, the portfolio is most concentrated in Technology at 78% of assets, up from 64% a quarter earlier, followed by Communication Services and Consumer Discretionary.
- Alex Sacerdote's largest Q2 2026 buy was Astera Labs: 1,567,882 shares worth $757M.
- Alex Sacerdote added most to Advanced Micro Devices in Q2 2026, an estimated $591M increase.
- Alex Sacerdote's biggest Q2 2026 reduction was Sandisk, cutting an estimated $290M.
- Alex Sacerdote fully exited Advanced Energy in Q2 2026, selling an estimated $330M.
- Alex Sacerdote's ten largest holdings make up 59% of its $12.5B portfolio in Q2 2026.
- Alex Sacerdote opened 7 new positions and closed 7 in Q2 2026.
- Alex Sacerdote's portfolio value rose 61% quarter-over-quarter to $12.5B.
Based on Whale Rock Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.