Whale Rock Capital Management
In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 15, 2026), Alex Sacerdote's Whale Rock Capital Management reported 35 stock positions worth $7.7 billion. Its top holding was Alphabet Class A (GOOGL) at 9.9% of the portfolio, followed by Sandisk (SNDK, 6.6%) and Celestica (CLS, 5.5%). Compared with Q4 2025, it opened 11 new positions, sold out of 8, added to 7 and reduced 17. The biggest buy was a new position in Advanced Energy Industries (AEIS) and the biggest sale an exit from Semtech (SMTC).
- Most Recent 13F
- Q2 2026
- Notable People
- Alex Sacerdote
- Location
- Boston, MA
- CIK
- 0001387322
- Portfolio Value
- $7.7B (Q1 2026)
- SEC Filing
- 0001172661-26-002159 ↗ filed May 15, 2026
Holdings Value
Holdings 35 stocks · $7.7B
| GOOGL Alphabet Inc. Class A | 9.92% | 2,671,821 | $768.3M | Add +27.2% |
| SNDK Sandisk Corp. | 6.56% | 799,587 | $508.0M | Reduce -20.3% |
| CLS Celestica Inc. | 5.52% | 1,518,201 | $427.6M | Reduce -19.4% |
| AMZN Amazon.com Inc. | 4.89% | 1,819,439 | $378.9M | Reduce -2.1% |
| TTMI TTM Technologies | 4.42% | 3,514,560 | $342.4M | Reduce -17.8% |
| AEIS Advanced Energy Industries | 4.26% | 1,022,112 | $329.8M | New |
| FN Fabrinet | 4.12% | 611,266 | $318.8M | Reduce -0.8% |
| GLW Corning Inc. | 4.03% | 2,297,424 | $312.4M | Reduce -13.9% |
| MKSI MKS Inc. | 3.88% | 1,306,724 | $300.3M | New |
| META Meta Platforms Inc. Class A | 3.79% | 512,569 | $293.3M | Add +9.1% |
| FROG Jfrog Ltd. | 3.65% | 6,019,793 | $282.5M | Add +13.6% |
| TSM Taiwan Semiconductor-SP ADR | 3.58% | 819,445 | $276.9M | Add +38.2% |
| APP AppLovin Corp. Class A | 3.58% | 695,537 | $276.8M | Reduce -14.0% |
| CVNA Carvana Co. | 3.56% | 877,554 | $275.9M | Reduce -18.1% |
| MTSI Macom Technology Solutions H | 3.37% | 1,174,991 | $260.9M | Add +50.0% |
| COHR Coherent Corp. | 3.00% | 975,048 | $232.3M | Reduce -10.9% |
| AVGO Broadcom Inc. | 2.95% | 737,142 | $228.2M | Reduce -28.6% |
| BE Bloom Energy Corp. Class A | 2.89% | 1,653,788 | $224.1M | Add +23.4% |
| LRCX Lam Research Corp. | 2.64% | 957,877 | $204.7M | New |
| RBLX Roblox Corp. Class A | 2.58% | 3,532,184 | $199.8M | Reduce -14.0% |
| SITM Sitime Corp. | 2.57% | 576,933 | $199.2M | Reduce -17.4% |
| TSEM Tower Semiconductor Ltd. | 2.42% | 1,066,737 | $187.2M | New |
| NVDA Nvidia Corp. | 2.35% | 1,041,128 | $181.6M | Reduce -13.4% |
| KVYO Klaviyo Inc. Class A | 1.72% | 6,825,206 | $132.8M | Add +123.2% |
| VIAV Viavi Solutions Inc. | 1.49% | 3,473,152 | $115.6M | New |
| WDC Western Digital Corp. | 1.44% | 412,006 | $111.4M | New |
| CIEN Ciena Corp. | 1.16% | 231,267 | $89.8M | Reduce -74.1% |
| ARM Arm Holdings PLC-ADR | 0.88% | 452,384 | $68.4M | New |
| MDB Mongodb Inc. | 0.71% | 224,648 | $55.0M | Reduce -62.6% |
| DUOL Duolingo | 0.60% | 471,764 | $46.5M | Reduce -46.2% |
| PI Impinj Inc. | 0.54% | 405,244 | $41.6M | Reduce -54.3% |
| AAPL Apple Inc. | 0.32% | 96,613 | $24.5M | New |
| MSFT Microsoft Corp. | 0.26% | 53,850 | $19.9M | New |
| AMD Advanced Micro Devices | 0.18% | 69,211 | $14.1M | New |
| NFLX Netflix Inc. | 0.16% | 131,960 | $12.7M | New |
Portfolio Sells Q4 2025 → Q1 2026
| SMTC Semtech Corp. | Sold out | 0.00% | −3.68 |
| APP AppLovin Corp. Class A | Reduce -14.0% | 3.58% | −3.39 |
| MELI MercadoLibre Inc. | Sold out | 0.00% | −2.53 |
| MDB Mongodb Inc. | Reduce -62.6% | 0.71% | −2.51 |
| NU Nu Holdings Ltd./Cayman Isl-A | Sold out | 0.00% | −2.30 |
| CVNA Carvana Co. | Reduce -18.1% | 3.56% | −2.22 |
| RBLX Roblox Corp. Class A | Reduce -14.0% | 2.58% | −1.67 |
| AVGO Broadcom Inc. | Reduce -28.6% | 2.95% | −1.62 |
| CLS Celestica Inc. | Reduce -19.4% | 5.52% | −1.59 |
| CIEN Ciena Corp. | Reduce -74.1% | 1.16% | −1.51 |
| PI Impinj Inc. | Reduce -54.3% | 0.54% | −1.44 |
| DUOL Duolingo | Reduce -46.2% | 0.60% | −1.37 |
| HUBS HubSpot Inc. | Sold out | 0.00% | −0.77 |
| AMZN Amazon.com Inc. | Reduce -2.1% | 4.89% | −0.59 |
| HPE Hewlett Packard Enterprise | Sold out | 0.00% | −0.59 |
| SITM Sitime Corp. | Reduce -17.4% | 2.57% | −0.58 |
| NVDA Nvidia Corp. | Reduce -13.4% | 2.35% | −0.52 |
| OKTA Okta Inc. | Sold out | 0.00% | −0.48 |
| WLTH Wealthfront Corp. | Sold out | 0.00% | −0.28 |
| CHYM Chime Financial Inc. Class A | Sold out | 0.00% | −0.00 |
| COHR Coherent Corp. | Reduce -10.9% | 3.00% | +0.42 |
| FN Fabrinet | Reduce -0.8% | 4.12% | +0.53 |
| TTMI TTM Technologies | Reduce -17.8% | 4.42% | +0.65 |
| GLW Corning Inc. | Reduce -13.9% | 4.03% | +1.05 |
| SNDK Sandisk Corp. | Reduce -20.3% | 6.56% | +3.52 |
Portfolio Buys Q4 2025 → Q1 2026
| AEIS Advanced Energy Industries | New | 4.26% | +4.26 |
| MKSI MKS Inc. | New | 3.88% | +3.88 |
| LRCX Lam Research Corp. | New | 2.64% | +2.64 |
| TSEM Tower Semiconductor Ltd. | New | 2.42% | +2.42 |
| MTSI Macom Technology Solutions H | Add +50.0% | 3.37% | +1.65 |
| GOOGL Alphabet Inc. Class A | Add +27.2% | 9.92% | +1.51 |
| VIAV Viavi Solutions Inc. | New | 1.49% | +1.49 |
| WDC Western Digital Corp. | New | 1.44% | +1.44 |
| BE Bloom Energy Corp. Class A | Add +23.4% | 2.89% | +1.41 |
| TSM Taiwan Semiconductor-SP ADR | Add +38.2% | 3.58% | +1.27 |
| ARM Arm Holdings PLC-ADR | New | 0.88% | +0.88 |
| KVYO Klaviyo Inc. Class A | Add +123.2% | 1.72% | +0.45 |
| AAPL Apple Inc. | New | 0.32% | +0.32 |
| MSFT Microsoft Corp. | New | 0.26% | +0.26 |
| AMD Advanced Micro Devices | New | 0.18% | +0.18 |
| NFLX Netflix Inc. | New | 0.16% | +0.16 |
| META Meta Platforms Inc. Class A | Add +9.1% | 3.79% | −0.18 |
| FROG Jfrog Ltd. | Add +13.6% | 3.65% | −0.58 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 35 | $12.5B | SNDK, AMD, GOOGL, TTMI, ALAB |
| Q1 2026 | 35 | $7.7B | GOOGL, SNDK, CLS, AMZN, TTMI |
| Q4 2025 | 32 | $7.8B | GOOGL, CLS, APP, CVNA, AMZN |
| Q3 2025 | 36 | $8.5B | CLS, APP, NVDA, META, RBLX |
| Q2 2025 | 42 | $7.2B | CLS, NVDA, META, AVGO, APP |
| Q1 2025 | 32 | $5.8B | CLS, APP, AMZN, META, DUOL |
| Q4 2024 | 38 | $8.4B | AMZN, AVGO, APP, CLS, META |
| Q3 2024 | 36 | $7.1B | AMZN, CLS, META, NVDA, GOOGL |
| Q2 2024 | 39 | $7.1B | NVDA, GOOGL, MSFT, AMZN, CLS |
| Q1 2024 | 33 | $6.7B | NVDA, AMZN, META, MSFT, NU |