KREN

Jim Simons Portfolio

Jim Simons · Renaissance Technologies — SEC 13F/HR filings · Report date 2026-03-31

$63.93B13F reported value (previous quarter $63.93B)
200Equity holdings
56.0%Displayed equity weight (remaining: options/other)
UTHR 1.7%, PLTR 1.6%, AAPL 1.2%Top 3 holdings weight

About this page

Large institutional investment managers report qualifying US holdings quarterly through 13F filings with the SEC. We parse the original XML to display portfolio weights and quarterly position changes. Current prices and returns are indicative estimates.

Security ▲▼ Portfolio weight ▲▼ Shares held ▲▼ Reported value ▲▼ Current price ▲▼ Estimated cost basis ▲▼ Estimated return ▲▼ Latest quarter activity
UTHRUnited Therapeutics CorporationCommon stock 1.66% 1,787,019 $1.06B $534.92 $350.17 +52.8% Reduced (2026Q1) -122,240 shares
Holding history

Quarterly holding historyCOM

QuarterSharesShare ΔValueSEC
2024 Q32,155,392—$0.77B—
2024 Q42,089,392-66,000$0.74B—
2025 Q12,106,992+17,600$0.65B—
2025 Q22,119,092+12,100$0.61B—
2025 Q32,173,392+54,300$0.91B—
2025 Q41,909,259-264,133$0.93B—
2026 Q11,787,019-122,240$1.06B—
2026 Q21,708,739-78,280$0.93B—
PLTRPalantir Technologies Inc.A class shares 1.60% 6,985,926 $1.02B $209.05 $35.13 +495.1% Reduced (2026Q1) -1,810,801 shares
Holding history

Quarterly holding historyCL A

QuarterSharesShare ΔValueSEC
2024 Q338,419,240—$1.43B—
2024 Q422,789,808-15,629,432$1.72B—
2025 Q116,289,873-6,499,935$1.37B—
2025 Q213,502,046-2,787,827$1.84B—
2025 Q38,565,875-4,936,171$1.56B—
2025 Q48,796,727+230,852$1.56B—
2026 Q16,985,926-1,810,801$1.02B—
2026 Q27,568,370+582,444$0.88B—
AAPLApple Inc.Common stock 1.22% 3,075,638 $0.78B $336.64 $223.76 +50.4% New
Holding history

Quarterly holding historyCOM

QuarterSharesShare ΔValueSEC
2024 Q33,276,203—$0.76B—
2024 Q42,467,613-808,590$0.62B—
2025 Q14,376-2,463,237$0.00B—
2025 Q22,286,262+2,281,886$0.47B—
2025 Q33,125-2,283,137$0.00B—
2026 Q13,075,638+3,072,513$0.78B—
2026 Q21,586,526-1,489,112$0.46B—
KGCKinross Gold CorporationCommon stock 1.22% 25,546,412 $0.78B $24.06 $9.26 +159.8% Added (2026Q1) +571,100 shares
Holding history

Quarterly holding historyCOM

QuarterSharesShare ΔValueSEC
2024 Q329,637,776—$0.28B—
2024 Q432,862,230+3,224,454$0.30B—
2025 Q132,451,794-410,436$0.41B—
2025 Q233,475,430+1,023,636$0.52B—
2025 Q326,080,330-7,395,100$0.65B—
2025 Q424,975,312-1,105,018$0.70B—
2026 Q125,546,412+571,100$0.78B—
2026 Q224,747,212-799,200$0.58B—
MUMicron Technology, Inc.Common stock 1.14% 2,162,986 $0.73B $1,029.00 $92.18 +1,016.3% Reduced (2026Q1) -848,157 shares
Holding history

Quarterly holding historyCOM

QuarterSharesShare ΔValueSEC
2024 Q32,604,914—$0.27B—
2024 Q4204,962-2,399,952$0.02B—
2025 Q31,199,536+994,574$0.20B—
2025 Q43,011,143+1,811,607$0.86B—
2026 Q12,162,986-848,157$0.73B—
2026 Q2211,580-1,951,406$0.24B—
VRSNVeriSign, Inc.Common stock 1.09% 2,818,151 $0.70B $282.07 $183.34 +53.9% Held Unchanged
Holding history

Quarterly holding historyCOM

QuarterSharesShare ΔValueSEC
2024 Q33,175,990—$0.60B—
2024 Q42,915,271-260,719$0.60B—
2025 Q13,013,971+98,700$0.77B—
2025 Q23,267,369+253,398$0.94B—
2025 Q33,170,271-97,098$0.89B—
2025 Q42,779,351-390,920$0.68B—
2026 Q12,818,151+38,800$0.70B—
2026 Q22,449,771-368,380$0.62B—
EXELExelixis, Inc.Common stock 0.92% 13,726,993 $0.59B $62.23 $26.27 +136.9% Held Unchanged
Holding history

Quarterly holding historyCOM

QuarterSharesShare ΔValueSEC
2024 Q315,359,916—$0.40B—
2024 Q415,295,865-64,051$0.51B—
2025 Q114,824,265-471,600$0.55B—
2025 Q215,819,765+995,500$0.70B—
2025 Q315,459,266-360,499$0.64B—
2025 Q413,914,043-1,545,223$0.61B—
2026 Q113,726,993-187,050$0.59B—
2026 Q213,427,993-299,000$0.73B—
?FRANCO NEV CORPCommon stock 0.86% 2,218,918 $0.55B — Unavailable* — Reduced (2026Q1) -259,200 shares
SNDKSandisk CorporationCommon stock 0.79% 799,568 $0.51B — $43.22 — Reduced (2026Q1) -409,432 shares
Holding history

Quarterly holding historyCOM

QuarterSharesShare ΔValueSEC
2025 Q2413,100—$0.02B—
2025 Q3835,200+422,100$0.09B—
2025 Q41,209,000+373,800$0.29B—
2026 Q1799,568-409,432$0.51B—
2026 Q24,980-794,588$0.01B—
NVDANVIDIACommon stock 0.69% 2,526,948 $0.44B $216.52 $115.06 +88.2% Added (2026Q1) +1,655,528 shares
Holding history

Quarterly holding historyCOM

QuarterSharesShare ΔValueSEC
2024 Q33,528,071—$0.43B—
2024 Q43,551,227+23,156$0.48B—
2025 Q11,084,960-2,466,267$0.12B—
2025 Q27,422,744+6,337,784$1.17B—
2025 Q35,628,605-1,794,139$1.05B—
2025 Q4871,420-4,757,185$0.16B—
2026 Q12,526,948+1,655,528$0.44B—
2026 Q27,091,256+4,564,308$1.42B—
CVXChevronCommon stock 0.65% 2,015,396 $0.42B $211.98 $197.99 +7.1% New
Holding history

Quarterly holding historyCOM

QuarterSharesShare ΔValueSEC
2026 Q12,015,396—$0.42B—
2026 Q22,870,517+855,121$0.48B—
RBLXRoblox CorporationA class shares 0.63% 7,126,134 $0.40B $49.44 $45.07 +9.7% Added (2026Q1) +497,625 shares
Holding history

Quarterly holding historyCL A

QuarterSharesShare ΔValueSEC
2024 Q36,092,538—$0.27B—
2024 Q47,570,959+1,478,421$0.44B—
2025 Q16,091,459-1,479,500$0.36B—
2025 Q26,101,659+10,200$0.64B—
2025 Q36,883,545+781,886$0.95B—
2025 Q46,628,509-255,036$0.54B—
2026 Q17,126,134+497,625$0.40B—
2026 Q26,814,063-312,071$0.37B—
CVNACarvana Co.A class shares 0.59% 1,201,218 $0.38B $58.83 $30.94 +90.1% Reduced (2026Q1) -206,180 shares
Holding history

Quarterly holding historyCL A

QuarterSharesShare ΔValueSEC
2024 Q31,000,800—$0.17B—
2024 Q4852,371-148,429$0.17B—
2025 Q1238,712-613,659$0.05B—
2025 Q21,013,112+774,400$0.34B—
2025 Q31,013,112±0$0.38B—
2025 Q41,407,398+394,286$0.59B—
2026 Q11,201,218-206,180$0.38B—
2026 Q25,122,450+3,921,232$0.34B—
WWayfair Inc.A class shares 0.58% 4,972,425 $0.37B $110.08 $48.69 +126.1% Reduced (2026Q1) -434,900 shares
Holding history

Quarterly holding historyCL A

QuarterSharesShare ΔValueSEC
2024 Q33,253,667—$0.18B—
2024 Q43,834,667+581,000$0.17B—
2025 Q14,332,567+497,900$0.14B—
2025 Q24,568,267+235,700$0.23B—
2025 Q35,226,767+658,500$0.47B—
2025 Q45,407,325+180,558$0.54B—
2026 Q14,972,425-434,900$0.37B—
2026 Q24,514,426-457,999$0.42B—
?ROBINHOOD MKTS INCA class shares 0.55% 5,104,137 $0.35B — Unavailable* — Added (2026Q1) +1,668,400 shares
INCYIncyte CorporationCommon stock 0.54% 3,651,532 $0.34B $108.62 $64.45 +68.5% Reduced (2026Q1) -326,800 shares
Holding history

Quarterly holding historyCOM

QuarterSharesShare ΔValueSEC
2024 Q34,499,540—$0.30B—
2024 Q44,085,932-413,608$0.28B—
2025 Q13,708,732-377,200$0.22B—
2025 Q23,881,932+173,200$0.26B—
2025 Q34,528,132+646,200$0.38B—
2025 Q43,978,332-549,800$0.39B—
2026 Q13,651,532-326,800$0.34B—
2026 Q23,512,132-139,400$0.40B—
AGXArgan, Inc.Common stock 0.52% 610,899 $0.33B $345.56 $90.30 +282.7% Added (2026Q1) +12,300 shares
Holding history

Quarterly holding historyCOM

QuarterSharesShare ΔValueSEC
2024 Q3555,796—$0.06B—
2024 Q4672,579+116,783$0.09B—
2025 Q1647,279-25,300$0.08B—
2025 Q2616,279-31,000$0.14B—
2025 Q3642,079+25,800$0.17B—
2025 Q4598,599-43,480$0.19B—
2026 Q1610,899+12,300$0.33B—
2026 Q2648,379+37,480$0.52B—
INTCIntel CorporationCommon stock 0.51% 7,399,394 $0.33B $89.74 $20.63 +335.0% Reduced (2026Q1) -2,489,973 shares
Holding history

Quarterly holding historyCOM

QuarterSharesShare ΔValueSEC
2024 Q44,657,994—$0.09B—
2025 Q1370,994-4,287,000$0.01B—
2025 Q27,592,590+7,221,596$0.17B—
2025 Q33,392,265-4,200,325$0.11B—
2025 Q49,889,367+6,497,102$0.36B—
2026 Q17,399,394-2,489,973$0.33B—
2026 Q27,321,928-77,466$1.02B—
NBIXNeurocrine Biosciences, Inc.Common stock 0.50% 2,418,897 $0.32B $136.31 $119.60 +14.0% Added (2026Q1) +180,100 shares
Holding history

Quarterly holding historyCOM

QuarterSharesShare ΔValueSEC
2024 Q32,574,546—$0.30B—
2024 Q42,489,397-85,149$0.34B—
2025 Q12,502,697+13,300$0.28B—
2025 Q22,366,397-136,300$0.30B—
2025 Q32,418,297+51,900$0.34B—
2025 Q42,238,797-179,500$0.32B—
2026 Q12,418,897+180,100$0.32B—
2026 Q22,335,897-83,000$0.39B—
UNHUnitedHealth Group IncorporatedCommon stock 0.49% 1,158,428 $0.31B $402.05 $533.16 -24.6% Added (2026Q1) +361,678 shares
Holding history

Quarterly holding historyCOM

QuarterSharesShare ΔValueSEC
2024 Q4278,658—$0.14B—
2025 Q21,352,129+1,073,471$0.42B—
2025 Q3753,826-598,303$0.26B—
2025 Q4796,750+42,924$0.26B—
2026 Q11,158,428+361,678$0.31B—
2026 Q2367,014-791,414$0.15B—

Quarterly 13F history

Click a quarter to switch the whole page to that quarter's snapshot.

QuarterFiledReported valueSEC filing
2026 Q22026-08-13$72.62B—
2026 Q1Viewing2026-05-14$63.93B—
2025 Q42026-02-12$64.46B—
2025 Q32025-11-13$75.75B—
2025 Q22025-08-13$75.17B—
2025 Q12025-05-14$66.07B—
2024 Q42025-02-13$67.55B—
2024 Q32024-11-13$66.50B—

New 743 · Added 1163 · Trimmed 1087 · Exited 722

* Estimated cost basis: 13F filings do not disclose average purchase prices. For new positions since 2024 Q9, we estimate the cost basis using quarterly average prices. Positions with partial sales are marked unavailable. Returns based on these estimates are for reference only.

This page mechanically processes original 13F/HR filings on SEC EDGAR. Holdings are reported as of quarter-end and filings are submitted within 45 days, so actual holdings may differ. Coverage of options, derivatives, foreign equities and warrants may be limited. Do not rely on this page alone for investment decisions; verify the original filings at SEC EDGAR.