Stephen Mandel - Lone Pine Capital

As of Q2 2026, Stephen Mandel reported 34 long-equity positions worth $16.36B in aggregate.

Copy-investor backtest

Latest quarter: +4.81%
1-year: +0.17%
3-year: +87.28%
5-year: +14.37%
3-year vs S&P 500: +14.05%
5-year vs S&P 500: -59.31%
5-year top 5: +11.49%

Return from mechanically copying the disclosed 13F equity portfolio after each filing and rebalancing at the next. The vs S&P 500 figures subtract SPY over that manager's own rebalance dates, so both sides cover the same days; both are price return, excluding dividends. Method & limitations.

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Filing period

Updated 2026-06-06 from SEC 13F data.

Live quotes available for 23 of 45 rows. Rows without a quote are marked unavailable.


1	SHOP	SHOPIFY INC	6.88%	Reduce -4.6%	1,712,490	$1.89B	$1106.50
2	MSFT	MICROSOFT CORP	6.70%	Add +23.9%	7,824,597	$1.84B	$235.77
3	META	FACEBOOK INC	6.06%	Add +58.4%	5,662,359	$1.67B	$294.53
4	LB	L BRANDS INC	5.90%	-	26,265,094	$1.62B	No quote	No quote
5	AMZN	AMAZON COM INC	5.41%	Add +87.4%	481,744	$1.49B	$3094.08
6	SNAP	SNAP INC	4.56%	Add +23.1%	24,015,574	$1.26B	$52.29
7	ADBE	ADOBE SYSTEMS INCORPORATED	4.53%	Add +29.8%	2,622,406	$1.25B	$475.37
8	UNH	UNITEDHEALTH GROUP INC	4.25%	Reduce -1.1%	3,146,574	$1.17B	$372.07
9	COUP	COUPA SOFTWARE INC	3.84%	Reduce -1.6%	4,151,913	$1.06B	No quote	No quote
10	MELI	MERCADOLIBRE INC	3.82%	Add +19.8%	715,152	$1.05B	$1472.14
11	NFLX	NETFLIX INC	3.46%	Reduce -25.4%	1,828,120	$953.66M	$521.66
12	DASH	DOORDASH INC	3.20%	Add +197.9%	6,723,551	$881.66M	$131.13
13	GPN	GLOBAL PMTS INC	3.11%	Reduce -32.9%	4,245,296	$855.77M	$201.58
14	DXCM	DEXCOM INC	3.10%	Add +4.6%	2,373,148	$852.89M	$359.39
15	MTCH	MATCH GROUP INC NEW	3.10%	Add +17.8%	6,204,685	$852.4M	$137.38
16	NOW	SERVICENOW INC	2.69%	Add +22.1%	1,478,725	$739.53M	$500.11
17	FTCH	FARFETCH LTD	2.63%	Add +69.7%	13,681,330	$725.38M	No quote	No quote
18	MA	MASTERCARD INCORPORATED	2.63%	Reduce -25.3%	2,031,733	$723.4M	$356.05
19	SQ	SQUARE INC	2.59%	Reduce -25.1%	3,145,145	$714.11M	No quote	No quote
20	IBN	ICICI BANK LIMITED	2.51%	New	43,155,826	$691.79M	$16.03
21	CVNA	CARVANA CO	2.30%	Reduce -1.6%	2,408,209	$631.91M	$262.40
22	TEAM	ATLASSIAN CORP PLC	2.28%	Reduce -13.1%	2,974,571	$626.92M	No quote	No quote
23	DDOG	DATADOG INC	1.98%	Reduce -7.7%	6,541,966	$545.21M	$83.34
24	WDAY	WORKDAY INC	1.94%	New	2,153,463	$534.99M	$248.43
25	BILI	BILIBILI INC	1.63%	Reduce -30.0%	4,200,332	$449.69M	No quote	No quote
26	BILL	BILL COM HLDGS INC	1.49%	Add +1.9%	2,820,713	$410.41M	$145.50
27	STNE	STONECO LTD	1.45%	Add +2.6%	6,534,257	$400.03M	No quote	No quote
28	NUAN	NUANCE COMMUNICATIONS INC	1.43%	-	9,009,792	$393.19M	No quote	No quote
29	SNOW	SNOWFLAKE INC	1.06%	Add +319.6%	1,267,426	$290.6M	$229.28
30	BPMC	BLUEPRINT MEDICINES CORP	0.96%	-	2,709,138	$263.41M	No quote	No quote
31	ASND	ASCENDIS PHARMA A/S	0.67%	Add +60.6%	1,436,981	$185.2M	$128.88
32	ARGX	ARGENX SE	0.55%	Add +1.9%	546,259	$150.43M	No quote	No quote
33	FATE	FATE THERAPEUTICS INC	0.52%	Add +98.0%	1,749,284	$144.23M	No quote	No quote
34	PODD	INSULET CORP	0.36%	New	380,690	$99.33M	No quote	No quote
35	MDB	MONGODB INC	0.13%	Reduce -85.1%	131,371	$35.13M	$267.43
36	ZYME	ZYMEWORKS INC	0.11%	-	976,735	$30.85M	No quote	No quote
37	FMTX	FORMA THERAPEUTICS HLDGS INC	0.08%	-	800,000	$22.42M	No quote	No quote
38	XM	QUALTRICS INTL INC	0.08%	New	650,000	$21.39M	No quote	No quote
45	XP	XP INC	-	Sold	0	$0	No quote	No quote
44	HUM	HUMANA INC	-	Sold	0	$0	No quote	No quote
43	HWM	HOWMET AEROSPACE INC	-	Sold	0	$0	No quote	No quote
42	FIS	FIDELITY NATL INFORMATION SV	-	Sold	0	$0	No quote	No quote
41	DOCU	DOCUSIGN INC	-	Sold	0	$0	No quote	No quote
40	ADSK	AUTODESK INC	-	Sold	0	$0	No quote	No quote
39	FOLD	AMICUS THERAPEUTICS INC	-	Sold	0	$0	No quote	No quote