Whale Rock Capital Management LLC 13F: Quarter-over-Quarter Portfolio Changes
Whale Rock Capital Management LLC reported a disclosed portfolio value of approximately $7.7 billion in its latest SEC Form 13F-HR filing for Q1 2026, down 1.0% quarter on quarter. Over the quarter, the fund initiated 11 new positions, bought more shares in 7 holdings, trimmed 17 holdings, and exited 8 positions.
Whale Rock Capital Management LLC's top buy was a new stake in Advanced Energy Inds (AEIS) , equal to 4.3% of the disclosed portfolio. Its top sell was Semtech CORP (SMTC) . The fund exited the position completely after it had accounted for 3.7% of the previous portfolio.
New PositionsQ1 2026
Securities disclosed for the first time in Q1 2026 that were not present in the prior 13F-HR filing.
| Company | Ticker | Initial Portfolio Weight | History |
|---|---|---|---|
| ADVANCED ENERGY INDS | AEIS | 4.3% | History → |
| MKS INC. | MKSI | 3.9% | History → |
| LAM RESEARCH CORP | LRCX | 2.6% | Holders → |
| TOWER SEMICONDUCTOR LTD | TSEM | 2.4% | Holders → |
| VIAVI SOLUTIONS INC | VIAV | 1.5% | Holders → |
| WESTERN DIGITAL CORP | WDC | 1.4% | Holders → |
| ARM HOLDINGS PLC | ARM | 0.9% | Holders → |
| APPLE | AAPL | 0.3% | Holders → |
| MICROSOFT | MSFT | 0.3% | Holders → |
| ADVANCED MICRO DEVICES INC | AMD | 0.2% | Holders → |
| NETFLIX INC. | NFLX | 0.2% | Holders → |
Top BuysQ1 2026
The fund's top buys among existing positions in Q1 2026. Ranked by portfolio-weight impact, with the percentage of additional shares shown separately.
| Company | Ticker | Portfolio Weight Change | More Shares | History |
|---|---|---|---|---|
| KLAVIYO INC | KVYO | +0.4% | +123.2% | Holders → |
| MACOM TECH SOLUTIONS HLDGS I | MTSI | +1.7% | +50.0% | Holders → |
| TAIWAN SEMIC-ADR | TSM | +1.3% | +38.2% | Holders → |
| ALPHABET CL A | GOOGL | +1.5% | +27.2% | History → |
| BLOOM ENERGY | BE | +1.4% | +23.5% | Holders → |
| JFROG LTD | FROG | +-0.6% | +13.6% | Holders → |
| META PLATFORMS INC | META | +-0.2% | +9.1% | History → |
Top SellsQ1 2026
Showing the top 10 sells among 17 existing positions where the fund sold shares in Q1 2026. Ranked by portfolio-weight impact. Full exits are listed separately.
| Company | Ticker | Portfolio Weight Change | Shares Sold | History |
|---|---|---|---|---|
| CIENA CORP | CIEN | -1.5% | 74.1% | Holders → |
| MONGODB INC | MDB | -2.5% | 62.6% | Holders → |
| IMPINJ INC | PI | -1.4% | 54.3% | Holders → |
| DUOLINGO INC | DUOL | -1.4% | 46.2% | Holders → |
| BROADCOM | AVGO | -1.6% | 28.6% | Holders → |
| SANDISK CORP | SNDK | 3.5% | 20.3% | History → |
| CELESTICA INC | CLS | -1.6% | 19.3% | History → |
| CARVANA CO | CVNA | -2.2% | 18.0% | Holders → |
| TTM TECHNOLOGIES INC | TTMI | 0.6% | 17.8% | History → |
| SITIME CORP | SITM | -0.6% | 17.4% | Holders → |
Full ExitsQ1 2026
Positions present in the prior 13F-HR filing that no longer appear in Q1 2026.
| Company | Ticker | Last-Reported Portfolio Weight |
|---|---|---|
| SEMTECH CORP | SMTC | 3.7% |
| MERCADOLIBRE INC | MELI | 2.5% |
| NU HOLDINGS LTD | NU | 2.3% |
| HUBSPOT INC | HUBS | 0.8% |
| HEWLETT PACKARD ENTERPRISE C | HPE | 0.6% |
| OKTA INC | OKTA | 0.5% |
| WEALTHFRONT CORP | WLTH | 0.3% |
| CHIME FINL INC | CHYM | 0.0% |
Net Portfolio Value ChangeQ1 2026
- $7.8BPrior quarter
- $7.7BCurrent quarter
- $-0.1BNet delta
- -1.0%% change
Methodology & FAQ
How Whale Rock Capital Management LLC Quarterly Changes Are Computed
All deltas are sourced from sequential SEC Form 13F-HR filings for Whale Rock Capital Management LLC: each row joins the most recent filing against the immediately preceding quarterly filing for the same fund. Share-count changes reflect reported trading activity, while portfolio weights can also move because of market price changes. Portfolio weights are normalized to exclude listed options for comparability. A complete description — including how confidential treatment filings are handled — is documented in the Methodology.
What stocks did Whale Rock Capital Management LLC buy in Q1 2026?
In Q1 2026, Whale Rock Capital Management LLC initiated 11 new positions (ADVANCED ENERGY INDS (AEIS), MKS INC. (MKSI), LAM RESEARCH CORP (LRCX), TOWER SEMICONDUCTOR LTD (TSEM), VIAVI SOLUTIONS INC (VIAV), WESTERN DIGITAL CORP (WDC), ARM HOLDINGS PLC (ARM), APPLE (AAPL), MICROSOFT (MSFT), ADVANCED MICRO DEVICES INC (AMD), NETFLIX INC. (NFLX)); bought more shares of KLAVIYO INC (KVYO), MACOM TECH SOLUTIONS HLDGS I (MTSI), TAIWAN SEMIC-ADR (TSM), ALPHABET CL A (GOOGL), BLOOM ENERGY (BE) — the largest 5 of 7 adds.
What stocks did Whale Rock Capital Management LLC sell in Q1 2026?
In Q1 2026, Whale Rock Capital Management LLC fully sold 8 positions (SEMTECH CORP (SMTC), MERCADOLIBRE INC (MELI), NU HOLDINGS LTD (NU), HUBSPOT INC (HUBS), HEWLETT PACKARD ENTERPRISE C (HPE), OKTA INC (OKTA), WEALTHFRONT CORP (WLTH), CHIME FINL INC (CHYM)); reduced holdings in CIENA CORP (CIEN), MONGODB INC (MDB), IMPINJ INC (PI), DUOLINGO INC (DUOL), BROADCOM (AVGO) — the largest 5 of 17 reductions.
Which positions did Whale Rock Capital Management LLC initiate in Q1 2026?
Whale Rock Capital Management LLC established 11 new positions in Q1 2026: ADVANCED ENERGY INDS (AEIS, 4.3%), MKS INC. (MKSI, 3.9%), LAM RESEARCH CORP (LRCX, 2.6%), TOWER SEMICONDUCTOR LTD (TSEM, 2.4%), VIAVI SOLUTIONS INC (VIAV, 1.5%), WESTERN DIGITAL CORP (WDC, 1.4%), ARM HOLDINGS PLC (ARM, 0.9%), APPLE (AAPL, 0.3%), MICROSOFT (MSFT, 0.3%), ADVANCED MICRO DEVICES INC (AMD, 0.2%), NETFLIX INC. (NFLX, 0.2%).
Which existing positions saw the largest allocation increases for Whale Rock Capital Management LLC in Q1 2026?
Of 7 existing positions with share-count increases in Q1 2026, the largest were: KLAVIYO INC (KVYO, +0.4% weight, +123.2% shares), MACOM TECH SOLUTIONS HLDGS I (MTSI, +1.7% weight, +50.0% shares), TAIWAN SEMIC-ADR (TSM, +1.3% weight, +38.2% shares), ALPHABET CL A (GOOGL, +1.5% weight, +27.2% shares), BLOOM ENERGY (BE, +1.4% weight, +23.5% shares), JFROG LTD (FROG, +-0.6% weight, +13.6% shares), META PLATFORMS INC (META, +-0.2% weight, +9.1% shares).
Which positions did Whale Rock Capital Management LLC fully exit in Q1 2026?
Whale Rock Capital Management LLC fully exited 8 positions in Q1 2026: SEMTECH CORP (SMTC, last-reported weight 3.7%), MERCADOLIBRE INC (MELI, last-reported weight 2.5%), NU HOLDINGS LTD (NU, last-reported weight 2.3%), HUBSPOT INC (HUBS, last-reported weight 0.8%), HEWLETT PACKARD ENTERPRISE C (HPE, last-reported weight 0.6%), OKTA INC (OKTA, last-reported weight 0.5%), WEALTHFRONT CORP (WLTH, last-reported weight 0.3%), CHIME FINL INC (CHYM, last-reported weight 0.0%).
Which existing positions saw the largest allocation reductions for Whale Rock Capital Management LLC in Q1 2026?
Of 17 existing positions with share-count reductions in Q1 2026, the largest were: CIENA CORP (CIEN, -1.5% weight, -74.1% shares), MONGODB INC (MDB, -2.5% weight, -62.6% shares), IMPINJ INC (PI, -1.4% weight, -54.3% shares), DUOLINGO INC (DUOL, -1.4% weight, -46.2% shares), BROADCOM (AVGO, -1.6% weight, -28.6% shares), SANDISK CORP (SNDK, 3.5% weight, -20.3% shares), CELESTICA INC (CLS, -1.6% weight, -19.3% shares), CARVANA CO (CVNA, -2.2% weight, -18.0% shares), TTM TECHNOLOGIES INC (TTMI, 0.6% weight, -17.8% shares), SITIME CORP (SITM, -0.6% weight, -17.4% shares).
Do quarter-over-quarter 13F allocation changes constitute explicit trading signals?
No. Quarter-over-quarter changes reflect a combination of active trading and market price movement. A weight increase can result from price appreciation alone, without the manager adding shares. Share-count delta is the cleaner indicator of explicit trading activity. All deltas on this page are sourced from sequential SEC Form 13F-HR filings.