股權轉讓合同又稱為股權轉讓協議。
    股(gu)(gu)東要(yao)成(cheng)功地(di)轉讓其擁有(you)的(de)(de)全部(bu)或部(bu)分股(gu)(gu)權，受讓方要(yao)成(cheng)功地(di)取(qu)得(de)(de)該(gai)全部(bu)或部(bu)分股(gu)(gu)權而成(cheng)為新(xin)股(gu)(gu)東，都(dou)必須遵守(shou)《民法(fa)(fa)(fa)通則》、《合同法(fa)(fa)(fa)》、《公司法(fa)(fa)(fa)》等法(fa)(fa)(fa)律(lv)法(fa)(fa)(fa)規的(de)(de)相關(guan)規定(ding)(ding)，不得(de)(de)違反強行性(xing)規范。任(ren)何(he)規避法(fa)(fa)(fa)律(lv)的(de)(de)合同安排都(dou)是法(fa)(fa)(fa)律(lv)禁止和否(fou)定(ding)(ding)的(de)(de)。 　　

    1、股權轉讓(rang)合同簽訂風險(xian)的防范 　　

    有限公(gong)司(si)股(gu)(gu)東(dong)向股(gu)(gu)東(dong)以外(wai)的(de)人(ren)轉讓(rang)(rang)股(gu)(gu)權，合同(tong)(tong)(tong)的(de)訂立應(ying)遵守《公(gong)司(si)法》程序(xu)(xu)上的(de)要(yao)求。有限公(gong)司(si)的(de)股(gu)(gu)東(dong)向股(gu)(gu)東(dong)以外(wai)的(de)人(ren)轉讓(rang)(rang)其(qi)出資(zi)時(shi)，必須(xu)經(jing)全體股(gu)(gu)東(dong)過半數同(tong)(tong)(tong)意;不同(tong)(tong)(tong)意轉讓(rang)(rang)的(de)股(gu)(gu)東(dong)應(ying)當(dang)購買(mai)該轉讓(rang)(rang)的(de)出資(zi)，如果不購買(mai)該轉讓(rang)(rang)的(de)出資(zi)，視為同(tong)(tong)(tong)意轉讓(rang)(rang)經(jing)股(gu)(gu)東(dong)同(tong)(tong)(tong)意轉讓(rang)(rang)的(de)出資(zi)，在同(tong)(tong)(tong)等條(tiao)件下(xia)，其(qi)他股(gu)(gu)東(dong)對該出資(zi)有優先購買(mai)權。未經(jing)上述程序(xu)(xu)而簽(qian)訂的(de)股(gu)(gu)權轉讓(rang)(rang)合同(tong)(tong)(tong)會因程序(xu)(xu)的(de)瑕疵被認(ren)定為無(wu)效或撤銷。 　　

    股(gu)權(quan)(quan)轉(zhuan)(zhuan)(zhuan)讓合同簽(qian)訂不得(de)(de)違(wei)反(fan)法律(lv)、法規(gui)、政策(ce)或公(gong)(gong)司(si)章程關于轉(zhuan)(zhuan)(zhuan)讓時間、轉(zhuan)(zhuan)(zhuan)讓主體(ti)(ti)、受讓主體(ti)(ti)的(de)限制性規(gui)定(ding)。《公(gong)(gong)司(si)法》規(gui)定(ding)，股(gu)份公(gong)(gong)司(si)發起人持(chi)有的(de)本公(gong)(gong)司(si)股(gu)份自公(gong)(gong)司(si)成(cheng)立之(zhi)日起三年內(nei)不得(de)(de)轉(zhuan)(zhuan)(zhuan)讓;公(gong)(gong)司(si)董事、監事、經理持(chi)有的(de)本公(gong)(gong)司(si)股(gu)份在(zai)任職期間內(nei)不得(de)(de)轉(zhuan)(zhuan)(zhuan)讓法律(lv)、法規(gui)、政策(ce)規(gui)定(ding)不得(de)(de)從事營利性活動的(de)主體(ti)(ti)，不得(de)(de)受讓公(gong)(gong)司(si)股(gu)權(quan)(quan)成(cheng)為公(gong)(gong)司(si)股(gu)東。法律(lv)、法規(gui)對交(jiao)易主體(ti)(ti)權(quan)(quan)利能(neng)力有禁止性規(gui)定(ding)的(de)，這(zhe)類主體(ti)(ti)不得(de)(de)違(wei)反(fan)規(gui)定(ding)訂立股(gu)權(quan)(quan)轉(zhuan)(zhuan)(zhuan)讓合同，例如，股(gu)東不得(de)(de)向公(gong)(gong)司(si)自身轉(zhuan)(zhuan)(zhuan)讓股(gu)權(quan)(quan)、《商業(ye)銀行(xing)(xing)(xing)法》禁止商業(ye)銀行(xing)(xing)(xing)在(zai)中(zhong)國境內(nei)以受讓非銀行(xing)(xing)(xing)金(jin)融機構和企業(ye)的(de)股(gu)權(quan)(quan)的(de)形式向外投(tou)資等等。 　　

    2、股權轉讓合同效(xiao)力風險的防范 　　

    除(chu)法(fa)(fa)律、法(fa)(fa)規規定(ding)股權(quan)轉(zhuan)(zhuan)讓(rang)(rang)合(he)(he)同應(ying)當辦理(li)批準、登記(ji)(ji)手續(xu)生效的(de)(de)(de)以(yi)外，依法(fa)(fa)成(cheng)立(li)的(de)(de)(de)股權(quan)轉(zhuan)(zhuan)讓(rang)(rang)合(he)(he)同自(zi)成(cheng)立(li)時生效。法(fa)(fa)律規定(ding)股權(quan)轉(zhuan)(zhuan)讓(rang)(rang)合(he)(he)同要辦理(li)批準手續(xu)后才能生效的(de)(de)(de)，主要限于中(zhong)(zhong)外合(he)(he)資、中(zhong)(zhong)外合(he)(he)作(zuo)、外商投(tou)資的(de)(de)(de)有限公司(si)股權(quan)轉(zhuan)(zhuan)讓(rang)(rang)和公司(si)中(zhong)(zhong)的(de)(de)(de)國有股權(quan)轉(zhuan)(zhuan)讓(rang)(rang)。現(xian)有法(fa)(fa)律并(bing)無股權(quan)轉(zhuan)(zhuan)讓(rang)(rang)合(he)(he)同必須在(zai)(zai)辦理(li)登記(ji)(ji)手續(xu)后才能生效的(de)(de)(de)規定(ding)，因(yin)此，登記(ji)(ji)不是合(he)(he)同生效的(de)(de)(de)要件。股東(dong)名冊變(bian)更登記(ji)(ji)或工商變(bian)更登記(ji)(ji)是對已經(jing)發生的(de)(de)(de)股權(quan)轉(zhuan)(zhuan)讓(rang)(rang)事(shi)實的(de)(de)(de)確認(ren)，在(zai)(zai)股權(quan)轉(zhuan)(zhuan)讓(rang)(rang)合(he)(he)同生效并(bing)履行后才可進行。