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13F holdings

Whale Rock Capital Management

Alex Sacerdote's technology-focused long/short fund, concentrated in software, semiconductors, and internet platforms.
Q2 2026 13F-HR, reported as of 2026-06-30 and filed 2026-08-14 · CIK 1387322 · filings on EDGAR
$12.46B
reported book
35
equity positions
59%
in the top 10
28 of 35
names we cover
Private client access

The forensic read on this book

Anyone can read a 13F. The question is whether the management teams inside it do what they say. We track every forward-looking promise made on these companies' earnings calls and score whether it was kept - 28 of the 35 names here, 87% of the book by value.

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Every position, Q2 2026

All 35 equity positions reported on the 2026-06-30 13F, largest first.

#TickerIssuer% of bookValueSharesvs Q1 2026
1SNDKSandisk Corp10.89%$1.36B596,545Trimmed
-25%
2AMDAdvanced Micro Devices Inc7.04%$877.0M1,509,650Added
+2,081%
3GOOGLAlphabet Inc6.88%$856.4M2,396,352Trimmed
-10%
4TTMITtm Technologies Inc6.35%$791.2M4,230,575Added
+20%
5ALABAstera Labs Inc6.08%$757.3M1,567,882New
6AMZNAmazon Com Inc4.68%$583.4M2,447,732Added
+35%
7GLWCorning Inc4.58%$570.6M2,233,999Trimmed
-3%
8MKSIMks Inc.4.54%$565.5M1,271,373Trimmed
-3%
9CLSCelestica Inc4.32%$538.6M1,476,430Trimmed
-3%
10BEBloom Energy Corp3.91%$486.8M1,608,305Trimmed
-3%
11COHRCoherent Corp3.87%$482.1M1,222,035Added
+25%
12FNFabrinet3.36%$418.6M744,765Added
+22%
13SITMSitime Corp3.36%$418.0M560,701Trimmed
-3%
14FROGJfrog Ltd3.25%$405.2M4,458,423Trimmed
-26%
15MTSIMacom Tech Solutions Hldgs I3.02%$376.1M988,785Trimmed
-16%
16VIAVViavi Solutions Inc2.64%$328.3M6,875,942Added
+98%
17LRCXLam Research Corp2.58%$321.8M742,638Trimmed
-22%
18TSMTaiwan Semiconductor Manufac2.26%$281.7M589,911Trimmed
-28%
19CVNACarvana Co2.25%$280.9M4,267,080Trimmed
-3%
adj. 5-for-1 split
20METAMeta Platforms Inc2.06%$256.9M455,982Trimmed
-11%
21WDCWestern Digital Corp2.05%$255.9M400,687Trimmed
-3%
22APPApplovin Corp1.91%$237.8M461,611Trimmed
-34%
23SNOWSnowflake Inc1.81%$225.2M884,691New
24TWLOTwilio Inc1.36%$169.6M821,768New
25STXSeagate Technology Hldngs Pl1.15%$143.3M148,543New
26KVYOKlaviyo Inc0.67%$83.5M5,528,166Trimmed
-19%
27NVDANvidia Corporation0.61%$75.5M377,204Trimmed
-64%
28MDBMongodb Inc0.61%$75.5M224,648Unchanged
29PIImpinj Inc0.47%$58.0M405,244Unchanged
30DUOLDuolingo Inc0.44%$54.3M471,764Unchanged
31INTCIntel Corp0.29%$36.3M259,903New
32AAPLApple Inc0.23%$28.9M99,766Added
+3%
33SPCXSpace Exploration Techn Corp0.21%$26.1M152,517New
34AVGOBroadcom Inc0.18%$22.6M59,780Trimmed
-92%
35CBRSCerebras Systems Inc0.09%$11.2M50,696New
Ticker links go to that company's management-credibility page. Share counts are adjusted for stock splits where a split occurred between the two reporting dates; the adjustment is noted on the row.

Bought in Q2 2026

Positions that did not appear on the prior quarter's 13F.

TickerIssuer% of bookValueShares
ALABAstera Labs Inc6.08%$757.3M1,567,882
SNOWSnowflake Inc1.81%$225.2M884,691
TWLOTwilio Inc1.36%$169.6M821,768
STXSeagate Technology Hldngs Pl1.15%$143.3M148,543
INTCIntel Corp0.29%$36.3M259,903
SPCXSpace Exploration Techn Corp0.21%$26.1M152,517
CBRSCerebras Systems Inc0.09%$11.2M50,696

Sold out in Q2 2026

Positions on the Q1 2026 13F that are gone from this one. Value shown is what the position was worth at the prior reporting date.

TickerIssuerValue at prior quarterShares held
AEISAdvanced Energy Inds$329.8M1,022,112
RBLXRoblox Corp$199.8M3,532,184
TSEMTower Semiconductor Ltd$187.2M1,066,737
CIENCiena Corp$89.8M231,267
ARMArm Holdings Plc$68.4M452,384
MSFTMicrosoft Corp$19.9M53,850
NFLXNetflix Inc.$12.7M131,960

Book history

Reported 13F value and position count by quarter.

QuarterReportedBook valuePositions
Q2 20262026-06-30$12.46B35
Q1 20262026-03-31$7.74B35
Q4 20252025-12-31$7.82B32
Q3 20252025-09-30$8.49B36
Q2 20252025-06-30$7.21B42
Q1 20252025-03-31$5.76B32
Q4 20242024-12-31$8.44B38
Q3 20242024-09-30$7.13B36
Q2 20242024-06-30$7.05B39
Q1 20242024-03-31$6.73B33

How this page is built

Positions come straight from the fund's Form 13F-HR information table on SEC EDGAR, with amendments applied in filing order (a restatement replaces the table, a new-holdings amendment adds to it). Securities are identified by CUSIP rather than by issuer name, because name matching is how a book ends up showing an obscure over-the-counter line instead of the mega-cap it actually holds. Reported values are normalized to whole dollars across the 2023 change in the 13F value units.

A 13F is a quarterly snapshot of long US-listed equity positions, filed up to 45 days after the quarter ends. It does not show short positions, cash, debt, private holdings, or non-US listings, and the book will have moved since the reporting date. Read it as a record of what was held on 2026-06-30, not as a current portfolio.

Holdings data is from public SEC Form 13F-HR filings and is reproduced here as filed. A 13F reports long US-listed equity positions only, as of the quarter-end reporting date.
Scores, kept-promise rates, and flags on this site reflect the author's opinion, applying a stated methodology to statements management made on public earnings calls. Informational and educational purposes only - not investment advice, a recommendation, or an offer to buy or sell any security. Sources believed reliable but not guaranteed; the author may hold positions in the securities discussed.