NPORT-P false 0000702340 XXXXXXXX S000006725 C000018288 Penn Series Funds Inc 811-03459 0000702340 549300GLJSCMRCVZWX45 600 Dresher Road Horsham 19044 215-956-8000 Penn Series Mid Cap Growth Fund S000006725 TVVTH60ZEU4DHK3OB609 2023-12-31 2023-06-30 N 153370539.99 449416.85 152921123.14 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 N Martin Marietta Materials Inc 5299005MZ4WZECVATV08 573284106 4515.00000000 NS USD 2084530.35000000 1.363140884135 Long EC CORP US N 1 N N N Petco Health & Wellness Co Inc 2549007TYGV6RVSE9M61 71601V105 95985.00000000 NS USD 854266.50000000 0.558632112071 Long EC CORP US N 1 N N N Workday Inc 549300J0DYC0N31V7G13 98138H101 9318.00000000 NS USD 2104843.02000000 1.376423986941 Long EC CORP US N 1 N N N Arista Networks Inc 635400H1WKBLOQERUU95 040413106 15677.00000000 NS USD 2540614.62000000 1.661388935571 Long EC CORP US N 1 N N N Coherent Corp 549300O5C25A0MMHHU33 19247G107 46837.00000000 NS USD 2387750.26000000 1.561426054799 Long EC CORP US N 1 N N N ZoomInfo Technologies Inc 2549008GSAHW4UWFEM58 98980F104 63841.00000000 NS USD 1620922.99000000 1.059973244190 Long EC CORP US N 1 N N N Workiva Inc 529900RTOQ8GRWHY1O58 98139A105 19581.00000000 NS USD 1990604.46000000 1.301719748799 Long EC CORP US N 1 N N N On Holding AG N/A 000000000 73189.00000000 NS USD 2415237.00000000 1.579400510803 Long EC CORP CH N 1 N N N Fox Factory Holding Corp 529900GE1HSV0617R721 35138V102 8024.00000000 NS USD 870684.24000000 0.569368195918 Long EC CORP US N 1 N N N CoStar Group Inc N/A 22160N109 79641.00000000 NS USD 7088049.00000000 4.635101321817 Long EC CORP US N 1 N N N Tyler Technologies Inc 25490040SMU4Z8LBCW70 902252105 7533.00000000 NS USD 3137268.51000000 2.051559945141 Long EC CORP US N 1 N N N Teradyne Inc C3X4YJ278QNZHRJULN75 880770102 28190.00000000 NS USD 3138392.70000000 2.052295088839 Long EC CORP US N 1 N N N Littelfuse Inc 549300MY7HLQFYTPCX75 537008104 6772.00000000 NS USD 1972751.32000000 1.290045011109 Long EC CORP US N 1 N N N Monolithic Power Systems Inc 529900TB7O85LSZ1XU31 609839105 8337.00000000 NS USD 4503897.51000000 2.945242238298 Long EC CORP US N 1 N N N WillScot Mobile Mini Holdings 549300HJ4VIXF476Q166 971378104 26358.00000000 NS USD 1259648.82000000 0.823724541211 Long EC CORP US N 1 N N N Paycom Software Inc 254900LSB0HNJUDC6Q18 70432V102 9593.00000000 NS USD 3081655.32000000 2.015192706359 Long EC CORP US N 1 N N N Microchip Technology Inc 5493007PTFULNYZJ1R12 595017104 40674.00000000 NS USD 3643983.66000000 2.382917143934 Long EC CORP US N 1 N N N Shutterstock Inc 529900G2TDIS56V0LO22 825690100 14022.00000000 NS USD 682450.74000000 0.446276306364 Long EC CORP US N 1 N N N Brown-Forman Corp 549300873K3LXF7ARU34 115637209 29268.00000000 NS USD 1954517.04000000 1.278121033815 Long EC CORP US N 1 N N N DoubleVerify Holdings Inc N/A 25862V105 31820.00000000 NS USD 1238434.40000000 0.809851755317 Long EC CORP US N 1 N N N MarketAxess Holdings Inc 5493002U1CA1XJOVID83 57060D108 14895.00000000 NS USD 3893850.90000000 2.546313301946 Long EC CORP US N 1 N N N Genmab A/S 529900MTJPDPE4MHJ122 372303206 56181.00000000 NS USD 2135439.81000000 1.396432203839 Long EC CORP DK N 1 N N N Marvell Technology Inc N/A 573874104 49604.00000000 NS USD 2965327.12000000 1.939121985970 Long EC CORP US N 1 N N N Repligen Corp 54930006QJ0T5AUO1E71 759916109 17272.00000000 NS USD 2443297.12000000 1.597749918278 Long EC CORP US N 1 N N N Inspire Medical Systems Inc 549300XQQCQ7HCJKTW25 457730109 4184.00000000 NS USD 1358293.76000000 0.888231613860 Long EC CORP US N 1 N N N Vail Resorts Inc 529900PSZHRNU9HKH870 91879Q109 10213.00000000 NS USD 2571224.88000000 1.681405960931 Long EC CORP US N 1 N N N Kinsale Capital Group Inc 529900QTUQHNZ6HOA508 49714P108 4887.00000000 NS USD 1828715.40000000 1.195855328845 Long EC CORP US N 1 N N N Intuitive Surgical Inc 54930052SRG011710797 46120E602 9759.00000000 NS USD 3336992.46000000 2.182165806449 Long EC CORP US N 1 N N N Lincoln Electric Holdings Inc BIMGBY40SIN95O01BN93 533900106 9954.00000000 NS USD 1977163.02000000 1.292929962455 Long EC CORP US N 1 N N N EngageSmart Inc N/A 29283F103 36969.00000000 NS USD 705738.21000000 0.461504725775 Long EC CORP US N 1 N N N Trade Desk Inc/The 549300GXPD31VT3E0P46 88339J105 47530.00000000 NS USD 3670266.60000000 2.400104396722 Long EC CORP US N 1 N N N Universal Display Corp N/A 91347P105 16589.00000000 NS USD 2390972.57000000 1.563533226087 Long EC CORP US N 1 N N N Zebra Technologies Corp PO0I32GKZ3HZMMDPZZ08 989207105 5281.00000000 NS USD 1562278.23000000 1.021623565090 Long EC CORP US N 1 N N N Fastenal Co 529900PP0C7H2HHPSJ32 311900104 40215.00000000 NS USD 2372282.85000000 1.551311422051 Long EC CORP US N 1 N N N Trimble Inc 549300E2MI7NSZFQWS19 896239100 41705.00000000 NS USD 2207862.70000000 1.443791841614 Long EC CORP US N 1 N N N BorgWarner Inc 549300DSFX2IE88NSX47 099724106 75266.00000000 NS USD 3681260.06000000 2.407293370864 Long EC CORP US N 1 N N N Crowdstrike Holdings Inc 549300YBY08K9KM4HX32 22788C105 16051.00000000 NS USD 2357410.37000000 1.541585833006 Long EC CORP US N 1 N N N Foot Locker Inc 549300X383CBNP6MTV94 344849104 48019.00000000 NS USD 1301795.09000000 0.851285331463 Long EC CORP US N 1 N N N Dexcom Inc 549300YSK3QDSFR5EU59 252131107 40907.00000000 NS USD 5256958.57000000 3.437692885100 Long EC CORP US N 1 N N N National Vision Holdings Inc 549300JHURCBLI5ROA42 63845R107 50815.00000000 NS USD 1234296.35000000 0.807145752434 Long EC CORP US N 1 N N N Lattice Semiconductor Corp 549300LRBBPZDQ2II567 518415104 13739.00000000 NS USD 1319905.73000000 0.863128456617 Long EC CORP US N 1 N N N Trex Co Inc N/A 89531P105 47929.00000000 NS USD 3142225.24000000 2.054801308988 Long EC CORP US N 1 N N N Copart Inc 549300KVYX3JWMYEHU61 217204106 25090.00000000 NS USD 2288458.90000000 1.496496267493 Long EC CORP US N 1 N N N DocuSign Inc 549300Q7PVDWRZ39JG09 256163106 39081.00000000 NS USD 1996648.29000000 1.305672002011 Long EC CORP US N 1 N N N Generac Holdings Inc 529900S2H2AHJHSFFI84 368736104 17161.00000000 NS USD 2559219.93000000 1.673555541216 Long EC CORP US N 1 N N N A O Smith Corp 549300XG4US7UJNECY36 831865209 31808.00000000 NS USD 2314986.24000000 1.513843341237 Long EC CORP US N 1 N N N Howmet Aerospace Inc 549300HO5WFZUT5N2T22 443201108 34996.00000000 NS USD 1734401.76000000 1.134180631417 Long EC CORP US N 1 N N N Pinterest Inc N/A 72352L106 152033.00000000 NS USD 4156582.22000000 2.718121692184 Long EC CORP US N 1 N N N Cooper Cos Inc/The QJKMVPIGLH7530PCUE20 216648402 4580.00000000 NS USD 1756109.40000000 1.148375949601 Long EC CORP US N 1 N N N Novanta Inc N/A 67000B104 12068.00000000 NS USD 2221718.80000000 1.452852787358 Long EC CORP US N 1 N N N Envista Holdings Corp 549300BX623VURJZ5269 29415F104 66419.00000000 NS USD 2247618.96000000 1.469789728095 Long EC CORP US N 1 N N N Edwards Lifesciences Corp YA13X31F3V31L8TMPR58 28176E108 23312.00000000 NS USD 2199020.96000000 1.438009945811 Long EC CORP US N 1 N N N Agilent Technologies Inc QUIX8Y7A2WP0XRMW7G29 00846U101 15965.00000000 NS USD 1919791.25000000 1.255412732119 Long EC CORP US N 1 N N N Pool Corp 5493005VZK1KMN6CO617 73278L105 8448.00000000 NS USD 3164958.72000000 2.069667456668 Long EC CORP US N 1 N N N Veeva Systems Inc 549300YZEXPDB92M2F02 922475108 8221.00000000 NS USD 1625538.33000000 1.062991362227 Long EC CORP US N 1 N N N Westinghouse Air Brake Technol 06BTX5UWZD0GQ5N5Y745 929740108 11020.00000000 NS USD 1208563.40000000 0.790318155650 Long EC CORP US N 1 N N N HubSpot Inc 529900BLNVEW0MVKJB37 443573100 3679.00000000 NS USD 1957559.11000000 1.280110340418 Long EC CORP US N 1 N N N West Pharmaceutical Services I 5493007NKRGM1RJQ1P16 955306105 6207.00000000 NS USD 2373991.29000000 1.552428625459 Long EC CORP US N 1 N N N BlackRock Liquidity FedFund 549300T8K043VZEOVK74 09248U700 548426.07000000 NS USD 548426.07000000 0.358633299794 Long STIV RF US N 1 N N N Keysight Technologies Inc 549300GLKVIO8YRCYN02 49338L103 15201.00000000 NS USD 2545407.45000000 1.664523119981 Long EC CORP US N 1 N N N Floor & Decor Holdings Inc 549300M5FR3N688XGQ36 339750101 25131.00000000 NS USD 2612618.76000000 1.708474739364 Long EC CORP US N 1 N N N Levi Strauss & Co MB0UERO0RDFKU8258G77 52736R102 98032.00000000 NS USD 1414601.76000000 0.925053211062 Long EC CORP US N 1 N N N HEICO Corp 529900O1DTDLCJ7L0I14 422806208 22112.00000000 NS USD 3108947.20000000 2.033039737194 Long EC CORP US N 1 N N N Lululemon Athletica Inc 549300D9GZ4BMLDW5T40 550021109 6285.00000000 NS USD 2378872.50000000 1.555620604370 Long EC CORP CA N 1 N N N Bio-Techne Corp 54930073RLKQ51TILZ35 09073M104 30218.00000000 NS USD 2466695.34000000 1.613050760647 Long EC CORP US N 1 N N N 2023-08-17 Penn Series Funds Inc Steven Viola Steven Viola Treasurer