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Livermore
Livermore
ZHEN

Bamco Inc

SEC CIK
0001017918
Latest filing
Aug 14, 2026

Holdings in Q1 2023

Holdings as of Mar 31, 2023, filed May 15, 2023. Long positions only; changes compare share counts with Q4 2022.

Institution overview
Positions
360
−15 vs. Q4 2022
Portfolio value
$33.3B
+$3.56B (+12.0%) vs. Q4 2022
Filed
May 15, 2023
SEC
Holdings of Bamco Inc in Q1 2023
SecurityClassSharesValue% of portfolioShare changeActionHistory
TSLATesla, Inc.Stock17,606,894$3.65B11.0%+79,037+0.5%AddedHistory
ITGartner IncCOM4,796,458$1.56B4.7%−102,330−2.1%ReducedHistory
ACGLArch Capital Group Ltd.Stock21,290,775$1.45B4.3%−125,545−0.6%ReducedHistory
CSGPCostar Group, Inc.COM18,970,081$1.31B3.9%−140,122−0.7%ReducedHistory
MSCIMSCI Inc.Stock2,172,566$1.22B3.7%−1,291−0.1%ReducedHistory
IDXXIDEXX Laboratories IncCOM2,356,243$1.18B3.5%−17,343−0.7%ReducedHistory
FDSFactset Research Systems IncStock2,698,268$1.12B3.4%+18,827+0.7%AddedHistory
MTNVail Resorts IncCOM4,629,113$1.08B3.2%+38,565+0.8%AddedHistory
IRDMIridium Communications Inc.COM14,440,447$894.3M2.7%−70,871−0.5%ReducedHistory
ANSSAnsys IncCOM1,962,217$653.0M2.0%+9,095+0.5%AddedHistory
KNSLKinsale Capital Group, Inc.Stock2,074,765$622.7M1.9%−2,300−0.1%ReducedHistory
HHyatt Hotels CorpCOM CL A5,148,507$575.6M1.7%−11,359−0.2%ReducedHistory
CHHChoice Hotels International IncCOM4,573,432$536.0M1.6%−2,628−0.1%ReducedHistory
MTDMettler Toledo International IncCOM335,056$512.7M1.5%−6,530−1.9%ReducedHistory
GWREGuidewire Software, Inc.COM6,106,230$501.0M1.5%+226,720+3.9%AddedHistory
GLPIGaming & Leisure Properties, Inc.COM8,470,246$441.0M1.3%−415,775−4.7%ReducedHistory
SCHWSchwab Charles CorpStock7,630,034$399.7M1.2%+915,388+13.6%AddedHistory
TECHBIO-TECHNE CorpCOM5,379,492$399.1M1.2%−139,570−2.5%ReducedHistory
TSMTaiwan Semiconductor Manufacturing Co LtdADR4,280,903$398.2M1.2%+433,498+11.3%AddedHistory
RRRRed Rock Resorts, Inc.CL A8,470,525$377.5M1.1%+305,352+3.7%AddedHistory
VACMarriott Vacations Worldwide CorpCOM2,785,321$375.6M1.1%+101,430+3.8%AddedHistory
WSTWest Pharmaceutical Services IncCOM1,065,115$369.0M1.1%−10,338−1.0%ReducedHistory
PRIPrimerica, Inc.Stock1,947,263$335.4M1.0%−3,380−0.2%ReducedHistory
DAYDayforce, Inc.COM3,467,698$253.9M0.8%−19,538−0.6%ReducedHistory
FNDFloor & Decor Holdings, Inc.CL A2,579,551$253.4M0.8%−173,239−6.3%ReducedHistory
VRSKVerisk Analytics, Inc.COM1,306,304$250.6M0.8%+21,912+1.7%AddedHistory
BABAAlibaba Group Holding LtdADR2,251,648$230.1M0.7%+234,887+11.6%AddedHistory
MORNMorningstar, Inc.COM1,128,519$229.1M0.7%−5,000−0.4%ReducedHistory
PENNPENN Entertainment, Inc.COM7,659,384$227.2M0.7%−431,573−5.3%ReducedHistory
ICLRIcon PLCCOM987,977$211.0M0.6%+52,126+5.6%AddedHistory
SITESiteOne Landscape Supply, Inc.COM1,487,105$203.5M0.6%−213,931−12.6%ReducedHistory
CNSCohen & Steers, Inc.COM2,848,920$182.2M0.5%−209,582−6.9%ReducedHistory
EFOREverforth IncCOM2,130,981$176.2M0.5%+87,200+4.3%AddedHistory
BFAMBright Horizons Family Solutions Inc.COM2,238,271$172.3M0.5%−14,401−0.6%ReducedHistory
DXCMDexcom IncCOM1,437,140$167.0M0.5%+81,553+6.0%AddedHistory
DAVAEndava plcADS2,437,049$163.7M0.5%+15,909+0.7%AddedHistory
AREAlexandria Real Estate Equities, Inc.COM1,251,863$157.2M0.5%−32,308−2.5%ReducedHistory
NVDANVIDIA CorpStock540,614$150.2M0.5%−37,479−6.5%ReducedHistory
SBACSba Communications CorpCL A560,491$146.3M0.4%−190,805−25.4%ReducedHistory
MSFTMicrosoft CorpStock484,483$139.7M0.4%−13,976−2.8%ReducedHistory
VRSNVerisign IncCOM647,247$136.8M0.4%−5,896−0.9%ReducedHistory
VEEVVeeva Systems IncStock738,802$135.8M0.4%−11,108−1.5%ReducedHistory
BYDBoyd Gaming CorpCOM2,115,907$135.7M0.4%+160,108+8.2%AddedHistory
TREXTrex Co IncCOM2,722,862$132.5M0.4%−790,063−22.5%ReducedHistory
FIGSFIGS, Inc.CL A20,866,767$129.2M0.4%+4,622,779+28.5%AddedHistory
AZPNAspen Technology, Inc.COM555,822$127.2M0.4%+10,883+2.0%AddedHistory
GTLSChart Industries IncCOM1,007,228$126.3M0.4%+98,014+10.8%AddedHistory
EQIXEquinix IncCOM174,084$125.5M0.4%−9,547−5.2%ReducedHistory
ROPRoper Technologies IncStock284,686$125.5M0.4%−1,471−0.5%ReducedHistory
ALTRAltair Engineering Inc.COM CL A1,635,507$117.9M0.4%+7770.0%AddedHistory
FICOFair Isaac CorpCOM167,405$117.6M0.4%−651−0.4%ReducedHistory
HLIHoulihan Lokey, Inc.CL A1,298,577$113.6M0.3%−2,596−0.2%ReducedHistory
PLDPrologis, Inc.REIT902,494$112.6M0.3%+136,434+17.8%AddedHistory
TTDTrade Desk, Inc.Stock1,846,053$112.4M0.3%+89,926+5.1%AddedHistory
ILMNIllumina, Inc.COM473,231$110.0M0.3%−86,236−15.4%ReducedHistory
VRTVertiv Holdings CoCOM CL A7,650,000$109.5M0.3%00.0%UnchangedHistory
REXRRexford Industrial Realty, Inc.COM1,825,397$108.9M0.3%+193,056+11.8%AddedHistory
CPNGCoupang, Inc.CL A6,542,307$104.7M0.3%+2,087,031+46.8%AddedHistory
BNBROOKFIELD CorpCL A LTD VT SH3,191,224$104.0M0.3%+65,714+2.1%AddedHistory
TOLToll Brothers, Inc.COM1,712,675$102.8M0.3%+448,272+35.5%AddedHistory
DEIDouglas Emmett IncCOM8,272,165$102.0M0.3%+2,885,603+53.6%AddedHistory
AMZNAmazon Com IncStock965,850$99.8M0.3%+10,365+1.1%AddedHistory
TRUTransUnionCOM1,580,558$98.2M0.3%−2,295−0.1%ReducedHistory
MELIMercadolibre IncCOM73,530$96.9M0.3%−2,330−3.1%ReducedHistory
AXNXAxonics, Inc.COM1,773,014$96.7M0.3%00.0%UnchangedHistory
COOCooper Companies, Inc.COM NEW252,937$94.4M0.3%+8,098+3.3%AddedHistory
IBPInstalled Building Products, Inc.COM823,210$93.9M0.3%−449,262−35.3%ReducedHistory
BWINBaldwin Insurance Group, Inc.COM CL A3,661,625$93.2M0.3%−116,001−3.1%ReducedHistory
NEOGNeogen CorpCOM5,012,542$92.8M0.3%+1,044,130+26.3%AddedHistory
ARGXArgenx SESPONSORED ADR248,955$92.8M0.3%−115,331−31.7%ReducedHistory
TDGTransDigm Group INCCOM125,000$92.1M0.3%00.0%UnchangedHistory
CAKECheesecake Factory IncCOM2,587,115$90.7M0.3%−219,522−7.8%ReducedHistory
IEXIdex CorpCOM391,026$90.3M0.3%−2,368−0.6%ReducedHistory
FWONKLiberty Media CorpCOM SER C FRMLA1,200,000$89.8M0.3%00.0%UnchangedHistory
MRCYMercury Systems IncCOM1,734,579$88.7M0.3%−324,406−15.8%ReducedHistory
SHOPShopify Inc.Stock1,843,388$88.4M0.3%−824,371−30.9%ReducedHistory
CDWCDW CorpCOM442,839$86.3M0.3%−2,382−0.5%ReducedHistory
APHAmphenol CorpCL A1,006,146$82.2M0.2%−4,345−0.4%ReducedHistory
RBCRBC Bearings INCCOM353,186$82.2M0.2%−3,800−1.1%ReducedHistory
SNOWSnowflake Inc.Stock527,951$81.5M0.2%+5,892+1.1%AddedHistory
CBRECbre Group, Inc.CL A1,093,631$79.6M0.2%−155,180−12.4%ReducedHistory
YMMFull Truck Alliance Co. Ltd.SPONSORED ADS10,273,726$78.2M0.2%−1,606,237−13.5%ReducedHistory
PLNTPlanet Fitness, Inc.CL A1,000,000$77.7M0.2%00.0%UnchangedHistory
BAPCredicorp LtdCOM577,368$76.4M0.2%+1,270+0.2%AddedHistory
CRWDCrowdStrike Holdings, Inc.Stock546,109$75.0M0.2%−1,721−0.3%ReducedHistory
MKTXMarketaxess Holdings IncCOM190,561$74.6M0.2%−37,138−16.3%ReducedHistory
CGNXCognex CorpCOM1,500,000$74.3M0.2%00.0%UnchangedHistory
DNUTKrispy Kreme, Inc.COM4,661,785$72.5M0.2%+832,819+21.8%AddedHistory
GTMZoomInfo Technologies Inc.Stock2,891,437$71.4M0.2%−706,365−19.6%ReducedHistory
AVNTAvient CorpCOM1,700,000$70.0M0.2%−50,000−2.9%ReducedHistory
MGMMGM Resorts InternationalStock1,564,810$69.5M0.2%+746,504+91.2%AddedHistory
DRVNDriven Brands Holdings Inc.COM2,275,000$69.0M0.2%00.0%UnchangedHistory
ROLRollins IncCOM1,805,907$67.8M0.2%−16,500−0.9%ReducedHistory
YUMCYum China Holdings, Inc.COM1,055,778$66.9M0.2%+4,740+0.5%AddedHistory
CGCarlyle Group Inc.COM2,145,427$66.6M0.2%−27,200−1.3%ReducedHistory
CWANClearwater Analytics Holdings, Inc.CL A4,089,046$65.3M0.2%+808,802+24.7%AddedHistory
KTOSKratos Defense & Security Solutions, Inc.COM NEW4,735,611$63.8M0.2%+432,855+10.1%AddedHistory
INSPInspire Medical Systems, Inc.COM268,936$62.9M0.2%−24,400−8.3%ReducedHistory
WCNWaste Connections, Inc.COM450,000$62.6M0.2%00.0%UnchangedHistory
SSNCSS&C Technologies Holdings IncCOM1,106,954$62.5M0.2%−91,815−7.7%ReducedHistory

Sold out since Q4 2022 (31)

Positions held at the end of Q4 2022 that are gone from this filing.

Positions of Bamco Inc sold out since Q4 2022
SecurityClassShares in Q4 2022Value in Q4 2022% of portfolio in Q4 2022History
PGNYProgyny, Inc.COM1,163,928$36.3M0.1%History
First Rep BK San Francisco C33616C100COM244,477$29.8M0.1%–
Janus International Group IN47103N114*W EXP 06/07/2023,000,000$28.6M0.1%–
CDNACareDx, Inc.COM2,058,339$23.5M0.1%History
INGNInogen IncCOM976,644$19.2M0.1%History
SHWSherwin Williams CoCOM79,157$18.8M0.1%History
Nuvei Corp67079A102COM705,000$17.9M0.1%–
DLOdLocal LtdCLASS A COM958,234$14.9M0.1%History
BVBrightView Holdings, Inc.COM2,096,786$14.4M<0.1%History
WOOFPetco Health & Wellness Company, Inc.CL A COM1,308,754$12.4M<0.1%History
SPGSimon Property Group Inc.REIT62,490$7.34M<0.1%History
ABNBAirbnb, Inc.Stock80,360$6.87M<0.1%History
SPHRSphere Entertainment Co.CL A150,000$6.75M<0.1%History
FORGForgeRock, Inc.CL A276,028$6.29M<0.1%History
AZTAAzenta, Inc.COM93,000$5.41M<0.1%History
ACMRACM Research, Inc.Stock571,123$4.40M<0.1%History
SHCOSoho House & Co Inc.COM CL A1,000,000$3.74M<0.1%History
SGSweetgreen, Inc.COM CL A343,447$2.94M<0.1%History
CCICrown Castle Inc.REIT20,861$2.83M<0.1%History
ALNYAlnylam Pharmaceuticals, Inc.COM11,650$2.77M<0.1%History
Azul S A05501U106SPONSR ADR PFD428,039$2.62M<0.1%–
KRNTKornit Digital Ltd.SHS113,094$2.60M<0.1%History
SPYSPDR S&P 500 ETF TrustETF2,295$877.7K<0.1%History
iShares Russell 2000 Growth ETF464287648ETF3,059$656.2K<0.1%–
HROWHarrow, Inc.COM20,173$297.8K<0.1%History
BRZEBraze, Inc.Stock9,880$269.5K<0.1%History
iShares Core S&P U.S. Growth ETF464287671ETF2,663$217.1K<0.1%–
APAMArtisan Partners Asset Management Inc.CL A3,199$95.0K<0.1%History
SEERSeer, Inc.COM CL A5,463$31.7K<0.1%History
NXRTNexPoint Residential Trust, Inc.COM88$3.83K<0.1%History
E2open Parent Holdings, Inc.29788T111*W EXP 02/04/2024,886,792–––