Fund · 13F holdings
Whale Rock Capital Management LLC
Alex Sacerdote · Boston, MA · Founded 2006
Whale Rock Capital Management is a Boston-based global equity manager founded in 2006 by Alex Sacerdote, who runs it as chief executive and portfolio manager. The firm invests strictly in technology, media and telecom, running hedge, long-only and hybrid strategies out of Two International Place.
Sacerdote spent 1999 to 2006 at Fidelity Investments as an equity analyst and sector portfolio manager, mostly covering technology, before leaving to start Whale Rock. His stated framework is built on three things — S-curves, competitive advantages and underappreciated earnings power — applied to whichever platform shift is compounding at the time: cloud, mobile, and more recently the silicon and infrastructure layers underneath AI.
The public book is deliberately narrow. The June 2026 13F reports 35 positions worth $12.5 billion, concentrated in memory, optical and semiconductor-equipment names alongside a handful of large-cap platforms. The tables below cache Whale Rock's four most recent 13F filings; positions in companies R40 tracks are linked to their pages.
How to read these tables. A Form 13F reports each holding's market value as of the quarter-end date and the share count — not the price the fund paid, when it bought, or any short positions. Buys and sells are inferred by comparing share counts across quarters. Put/call lines are options (often hedges), and their value is notional rather than a straight equity stake. Figures are the fund's US-listed 13(f) holdings only; private positions appear when the manager reports them.
History
1999
Joins Fidelity Investments
Works as an equity analyst and later sector portfolio manager, primarily covering technology, through 2006.
2006
Founds Whale Rock Capital
Launches the Boston firm as a global TMT specialist, the sector focus it has kept since inception.
2026
Presents at Sohn Montreal
Sacerdote lays out Whale Rock's framework for investing across the AI stack, from silicon through applications.
2026 Q2 holdings
Period end
2026-06-30
Filed
2026-08-14
Portfolio value
$12.46B
Positions
35
We track
16
| # | Company | Class | Value | Shares | % Port. | vs prior |
|---|---|---|---|---|---|---|
| 1 | SNDKSandisk Corporation★ | COM | $1.36B | 597K | 10.9% | TRIM |
| 2 | AMDAdvanced Micro Devices, Inc.★ | COM | $877.0M | 1.5M | 7.0% | ADD |
| 3 | GOOGLAlphabet Inc.★ | CAP STK CL A | $856.4M | 2.4M | 6.9% | TRIM |
| 4 | Ttm Technologies Inc | COM | $791.2M | 4.2M | 6.4% | ADD |
| 5 | Astera Labs Inc | COM | $757.3M | 1.6M | 6.1% | NEW |
| 6 | AMZNAmazon.com, Inc.★ | COM | $583.4M | 2.4M | 4.7% | ADD |
| 7 | GLWCorning Incorporated★ | COM | $570.6M | 2.2M | 4.6% | TRIM |
| 8 | Mks INC. | COM | $565.5M | 1.3M | 4.5% | TRIM |
| 9 | Celestica Inc | COM | $538.6M | 1.5M | 4.3% | TRIM |
| 10 | BEBloom Energy Corporation★ | COM CL A | $486.8M | 1.6M | 3.9% | TRIM |
| 11 | Coherent Corp | COM | $482.1M | 1.2M | 3.9% | ADD |
| 12 | Fabrinet | SHS | $418.6M | 745K | 3.4% | ADD |
| 13 | Sitime Corp | COM | $418.0M | 561K | 3.4% | TRIM |
| 14 | Jfrog Ltd | ORD SHS | $405.2M | 4.5M | 3.3% | TRIM |
| 15 | Macom Tech Solutions Hldgs I | COM | $376.1M | 989K | 3.0% | TRIM |
| 16 | Viavi Solutions Inc | COM | $328.3M | 6.9M | 2.6% | ADD |
| 17 | Lam Research Corp | COM NEW | $321.8M | 743K | 2.6% | TRIM |
| 18 | TSMTaiwan Semiconductor Manufacturing Company Limited★ | SPONSORED ADS | $281.7M | 590K | 2.3% | TRIM |
| 19 | CVNACarvana Co.★ | CL A | $280.9M | 4.3M | 2.3% | ADD |
| 20 | METAMeta Platforms, Inc.★ | CL A | $256.9M | 456K | 2.1% | TRIM |
| 21 | Western Digital Corp | COM | $255.9M | 401K | 2.1% | TRIM |
| 22 | Applovin Corp | COM CL A | $237.8M | 462K | 1.9% | TRIM |
| 23 | SNOWSnowflake Inc.★ | COM SHS | $225.2M | 885K | 1.8% | NEW |
| 24 | Twilio Inc | CL A | $169.6M | 822K | 1.4% | NEW |
| 25 | Seagate Technology Hldngs Pl | ORD SHS | $143.3M | 149K | 1.2% | NEW |
| 26 | Klaviyo Inc | COM SER A | $83.5M | 5.5M | 0.7% | TRIM |
| 27 | NVDANVIDIA Corporation★ | COM | $75.5M | 377K | 0.6% | TRIM |
| 28 | Mongodb Inc | CL A | $75.5M | 225K | 0.6% | HOLD |
| 29 | Impinj Inc | COM | $58.0M | 405K | 0.5% | HOLD |
| 30 | Duolingo Inc | CL A COM | $54.3M | 472K | 0.4% | HOLD |
| 31 | INTCIntel Corporation★ | COM | $36.3M | 260K | 0.3% | NEW |
| 32 | AAPLApple Inc.★ | COM | $28.9M | 100K | 0.2% | ADD |
| 33 | SPCXSpaceX★ | CLASS A COM STK | $26.1M | 153K | 0.2% | NEW |
| 34 | AVGOBroadcom Inc.★ | COM | $22.6M | 60K | 0.2% | TRIM |
| 35 | CBRSCerebras Systems Inc.★ | COM CL A | $11.2M | 51K | 0.1% | NEW |
Notable 2026 Q2 moves
New positions
- Astera Labs Inc $757.3M
- SNOW Snowflake Inc. $225.2M
- Twilio Inc $169.6M
- Seagate Technology Hldngs Pl $143.3M
- INTC Intel Corporation $36.3M
- SPCX SpaceX $26.1M
- CBRS Cerebras Systems Inc. $11.2M
Exited
- Advanced Energy Inds was $329.8M
- Roblox Corp was $199.8M
- Tower Semiconductor Ltd was $187.2M
- Ciena Corp was $89.8M
- Arm Holdings Plc was $68.4M
- MSFT Microsoft Corporation was $19.9M
- NFLX Netflix, Inc. was $12.7M
Position history in tracked names
Quarter-end value of each holding that has a page on R40, most recent first.
| Stock | 2026 Q2 | 2026 Q1 | 2025 Q4 | 2025 Q3 |
|---|---|---|---|---|
| SNDKSandisk Corp | $1.36B | $508.0M | $238.2M | — |
| AMDAdvanced Micro Devices Inc | $877.0M | $14.1M | — | — |
| GOOGLAlphabet Inc | $856.4M | $768.3M | $657.6M | $284.5M |
| AMZNAmazon Com Inc | $583.4M | $378.9M | $428.8M | $317.8M |
| GLWCorning Inc | $570.6M | $312.4M | $233.8M | $215.1M |
| BEBloom Energy Corp | $486.8M | $224.1M | $116.4M | $395.9M |
| TSMTaiwan Semiconductor Manufac | $281.7M | $276.9M | $180.2M | $203.0M |
| CVNACarvana Co | $280.9M | $275.9M | $451.9M | $214.2M |
| METAMeta Platforms Inc | $256.9M | $293.3M | $310.1M | $536.0M |
| SNOWSnowflake Inc | $225.2M | — | — | — |
| NVDANvidia Corporation | $75.5M | $181.6M | $224.1M | $594.5M |
| INTCIntel Corp | $36.3M | — | — | — |
| AAPLApple Inc | $28.9M | $24.5M | — | — |
| SPCXSpace Exploration Techn Corp | $26.1M | — | — | — |
| AVGOBroadcom Inc | $22.6M | $228.2M | $357.1M | $472.1M |
| CBRSCerebras Systems Inc | $11.2M | — | — | — |
Earlier filings
2026 Q1 · 35 positions · $7.74B · filed 2026-05-15
| # | Company | Class | Value | Shares | % Port. | vs prior |
|---|---|---|---|---|---|---|
| 1 | GOOGLAlphabet Inc.★ | CAP STK CL A | $768.3M | 2.7M | 9.9% | ADD |
| 2 | SNDKSandisk Corporation★ | COM | $508.0M | 800K | 6.6% | TRIM |
| 3 | Celestica Inc | COM | $427.6M | 1.5M | 5.5% | TRIM |
| 4 | AMZNAmazon.com, Inc.★ | COM | $378.9M | 1.8M | 4.9% | TRIM |
| 5 | Ttm Technologies Inc | COM | $342.4M | 3.5M | 4.4% | TRIM |
| 6 | Advanced Energy Inds | COM | $329.8M | 1.0M | 4.3% | NEW |
| 7 | Fabrinet | SHS | $318.8M | 611K | 4.1% | TRIM |
| 8 | GLWCorning Incorporated★ | COM | $312.4M | 2.3M | 4.0% | TRIM |
| 9 | Mks INC. | COM | $300.3M | 1.3M | 3.9% | NEW |
| 10 | METAMeta Platforms, Inc.★ | CL A | $293.3M | 513K | 3.8% | ADD |
| 11 | Jfrog Ltd | ORD SHS | $282.5M | 6.0M | 3.6% | ADD |
| 12 | TSMTaiwan Semiconductor Manufacturing Company Limited★ | SPONSORED ADS | $276.9M | 819K | 3.6% | ADD |
| 13 | Applovin Corp | COM CL A | $276.8M | 696K | 3.6% | TRIM |
| 14 | CVNACarvana Co.★ | CL A | $275.9M | 878K | 3.6% | TRIM |
| 15 | Macom Tech Solutions Hldgs I | COM | $260.9M | 1.2M | 3.4% | ADD |
| 16 | Coherent Corp | COM | $232.3M | 975K | 3.0% | TRIM |
| 17 | AVGOBroadcom Inc.★ | COM | $228.2M | 737K | 2.9% | TRIM |
| 18 | BEBloom Energy Corporation★ | COM CL A | $224.1M | 1.7M | 2.9% | ADD |
| 19 | Lam Research Corp | COM NEW | $204.7M | 958K | 2.6% | NEW |
| 20 | Roblox Corp | CL A | $199.8M | 3.5M | 2.6% | TRIM |
| 21 | Sitime Corp | COM | $199.2M | 577K | 2.6% | TRIM |
| 22 | Tower Semiconductor Ltd | SHS NEW | $187.2M | 1.1M | 2.4% | NEW |
| 23 | NVDANVIDIA Corporation★ | COM | $181.6M | 1.0M | 2.3% | TRIM |
| 24 | Klaviyo Inc | COM SER A | $132.8M | 6.8M | 1.7% | ADD |
| 25 | Viavi Solutions Inc | COM | $115.6M | 3.5M | 1.5% | NEW |
| 26 | Western Digital Corp | COM | $111.4M | 412K | 1.4% | NEW |
| 27 | Ciena Corp | COM NEW | $89.8M | 231K | 1.2% | TRIM |
| 28 | Arm Holdings Plc | SPONSORED ADS | $68.4M | 452K | 0.9% | NEW |
| 29 | Mongodb Inc | CL A | $55.0M | 225K | 0.7% | TRIM |
| 30 | Duolingo Inc | CL A COM | $46.5M | 472K | 0.6% | TRIM |
| 31 | Impinj Inc | COM | $41.6M | 405K | 0.5% | TRIM |
| 32 | AAPLApple Inc.★ | COM | $24.5M | 97K | 0.3% | NEW |
| 33 | MSFTMicrosoft Corporation★ | COM | $19.9M | 54K | 0.3% | NEW |
| 34 | AMDAdvanced Micro Devices, Inc.★ | COM | $14.1M | 69K | 0.2% | NEW |
| 35 | NFLXNetflix, Inc.★ | COM | $12.7M | 132K | 0.2% | NEW |
2025 Q4 · 32 positions · $7.82B · filed 2026-02-17
| # | Company | Class | Value | Shares | % Port. | vs prior |
|---|---|---|---|---|---|---|
| 1 | GOOGLAlphabet Inc.★ | CAP STK CL A | $657.6M | 2.1M | 8.4% | ADD |
| 2 | Celestica Inc | COM | $556.5M | 1.9M | 7.1% | TRIM |
| 3 | Applovin Corp | COM CL A | $544.7M | 808K | 7.0% | TRIM |
| 4 | CVNACarvana Co.★ | CL A | $451.9M | 1.1M | 5.8% | ADD |
| 5 | AMZNAmazon.com, Inc.★ | COM | $428.8M | 1.9M | 5.5% | ADD |
| 6 | AVGOBroadcom Inc.★ | COM | $357.1M | 1.0M | 4.6% | TRIM |
| 7 | Roblox Corp | CL A | $332.6M | 4.1M | 4.3% | ADD |
| 8 | Jfrog Ltd | ORD SHS | $330.9M | 5.3M | 4.2% | ADD |
| 9 | METAMeta Platforms, Inc.★ | CL A | $310.1M | 470K | 4.0% | TRIM |
| 10 | Ttm Technologies Inc | COM | $295.1M | 4.3M | 3.8% | ADD |
| 11 | Semtech Corp | COM | $287.5M | 3.9M | 3.7% | ADD |
| 12 | Fabrinet | SHS | $280.5M | 616K | 3.6% | TRIM |
| 13 | Mongodb Inc | CL A | $251.8M | 600K | 3.2% | ADD |
| 14 | Sitime Corp | COM | $246.7M | 699K | 3.2% | ADD |
| 15 | SNDKSandisk Corporation★ | COM | $238.2M | 1.0M | 3.0% | NEW |
| 16 | GLWCorning Incorporated★ | COM | $233.8M | 2.7M | 3.0% | ADD |
| 17 | NVDANVIDIA Corporation★ | COM | $224.1M | 1.2M | 2.9% | TRIM |
| 18 | Ciena Corp | COM NEW | $209.0M | 893K | 2.7% | TRIM |
| 19 | Coherent Corp | COM | $202.1M | 1.1M | 2.6% | ADD |
| 20 | Mercadolibre Inc | COM | $197.7M | 98K | 2.5% | ADD |
| 21 | TSMTaiwan Semiconductor Manufacturing Company Limited★ | SPONSORED ADS | $180.2M | 593K | 2.3% | TRIM |
| 22 | Nu Hldgs Ltd | ORD SHS CL A | $180.1M | 10.8M | 2.3% | TRIM |
| 23 | Impinj Inc | COM | $154.4M | 887K | 2.0% | TRIM |
| 24 | Duolingo Inc | CL A COM | $153.9M | 877K | 2.0% | ADD |
| 25 | Macom Tech Solutions Hldgs I | COM | $134.2M | 783K | 1.7% | NEW |
| 26 | BEBloom Energy Corporation★ | COM CL A | $116.4M | 1.3M | 1.5% | TRIM |
| 27 | Klaviyo Inc | COM SER A | $99.3M | 3.1M | 1.3% | ADD |
| 28 | Hubspot Inc | COM | $59.9M | 149K | 0.8% | HOLD |
| 29 | Hewlett Packard Enterprise C | COM | $45.8M | 1.9M | 0.6% | HOLD |
| 30 | OKTAOkta, Inc.★ | CL A | $37.6M | 435K | 0.5% | HOLD |
| 31 | Wealthfront Corp | COM | $21.7M | 1.6M | 0.3% | NEW |
| 32 | Chime Finl Inc | COM SHS CL A | $266K | 11K | 0.0% | TRIM |
2025 Q3 · 36 positions · $8.49B · filed 2025-11-14
| # | Company | Class | Value | Shares | % Port. | vs prior |
|---|---|---|---|---|---|---|
| 1 | Celestica Inc | COM | $737.5M | 3.0M | 8.7% | |
| 2 | Applovin Corp | COM CL A | $698.0M | 971K | 8.2% | |
| 3 | NVDANVIDIA Corporation★ | COM | $594.5M | 3.2M | 7.0% | |
| 4 | METAMeta Platforms, Inc.★ | CL A | $536.0M | 730K | 6.3% | |
| 5 | Roblox Corp | CL A | $515.2M | 3.7M | 6.1% | |
| 6 | AVGOBroadcom Inc.★ | COM | $472.1M | 1.4M | 5.6% | |
| 7 | BEBloom Energy Corporation★ | COM CL A | $395.9M | 4.7M | 4.7% | |
| 8 | AMZNAmazon.com, Inc.★ | COM | $317.8M | 1.4M | 3.7% | |
| 9 | GOOGLAlphabet Inc.★ | CAP STK CL A | $284.5M | 1.2M | 3.4% | |
| 10 | Duolingo Inc | CL A COM | $279.4M | 868K | 3.3% | |
| 11 | NFLXNetflix, Inc.★ | COM | $276.6M | 231K | 3.3% | |
| 12 | Semtech Corp | COM | $250.4M | 3.5M | 2.9% | |
| 13 | Fabrinet | SHS | $248.7M | 682K | 2.9% | |
| 14 | Impinj Inc | COM | $221.3M | 1.2M | 2.6% | |
| 15 | GLWCorning Incorporated★ | COM | $215.1M | 2.6M | 2.5% | |
| 16 | CVNACarvana Co.★ | CL A | $214.2M | 568K | 2.5% | |
| 17 | Sea Ltd | SPONSORD ADS | $207.5M | 1.2M | 2.4% | |
| 18 | TSMTaiwan Semiconductor Manufacturing Company Limited★ | SPONSORED ADS | $203.0M | 727K | 2.4% | |
| 19 | Nu Hldgs Ltd | ORD SHS CL A | $198.8M | 12.4M | 2.3% | |
| 20 | Ciena Corp | COM NEW | $194.9M | 1.3M | 2.3% | |
| 21 | Mongodb Inc | CL A | $171.4M | 552K | 2.0% | |
| 22 | MSFTMicrosoft Corporation★ | COM | $155.6M | 301K | 1.8% | |
| 23 | Sitime Corp | COM | $144.8M | 481K | 1.7% | |
| 24 | Mercadolibre Inc | COM | $142.4M | 61K | 1.7% | |
| 25 | Jfrog Ltd | ORD SHS | $137.7M | 2.9M | 1.6% | |
| 26 | Ttm Technologies Inc | COM | $116.1M | 2.0M | 1.4% | |
| 27 | SHOPShopify Inc.★ | CL A SUB VTG SHS | $113.8M | 765K | 1.3% | |
| 28 | VRTVertiv Holdings Co★ | COM CL A | $96.5M | 640K | 1.1% | |
| 29 | Klaviyo Inc | COM SER A | $84.6M | 3.1M | 1.0% | |
| 30 | Hubspot Inc | COM | $69.8M | 149K | 0.8% | |
| 31 | Coherent Corp | COM | $49.5M | 459K | 0.6% | |
| 32 | Hewlett Packard Enterprise C | COM | $46.9M | 1.9M | 0.6% | |
| 33 | OKTAOkta, Inc.★ | CL A | $39.9M | 435K | 0.5% | |
| 34 | Chime Finl Inc | COM SHS CL A | $28.2M | 1.4M | 0.3% | |
| 35 | Coupang Inc | CL A | $24.8M | 771K | 0.3% | |
| 36 | Hinge Health Inc | CL A | $8.5M | 174K | 0.1% |