diff --git a/modules/nextMillenniumBidAdapter.js b/modules/nextMillenniumBidAdapter.js
index d151523b265..c64fb7b7ea4 100644
--- a/modules/nextMillenniumBidAdapter.js
+++ b/modules/nextMillenniumBidAdapter.js
@@ -8,7 +8,6 @@ import {
   getWindowTop,
   isArray,
   isStr,
-  logMessage,
   parseGPTSingleSizeArrayToRtbSize,
   parseUrl,
   triggerPixel,
@@ -18,7 +17,6 @@ import {getGlobal} from '../src/prebidGlobal.js';
 import CONSTANTS from '../src/constants.json';
 import {BANNER, VIDEO} from '../src/mediaTypes.js';
 import {config} from '../src/config.js';
-import * as events from '../src/events.js';
 
 import {registerBidder} from '../src/adapters/bidderFactory.js';
 import {getRefererInfo} from '../src/refererDetection.js';
@@ -55,15 +53,6 @@ const ALLOWED_ORTB2_PARAMETERS = [
   'user.keywords',
 ];
 
-const sendingDataStatistic = initSendingDataStatistic();
-events.on(CONSTANTS.EVENTS.AUCTION_INIT, auctionInitHandler);
-
-const EXPIRENCE_WURL = 20 * 60000;
-const wurlMap = {};
-cleanWurl();
-
-events.on(CONSTANTS.EVENTS.BID_WON, bidWonHandler);
-
 export const spec = {
   code: BIDDER_CODE,
   supportedMediaTypes: [BANNER, VIDEO],
@@ -79,7 +68,7 @@ export const spec = {
     const requests = [];
     window.nmmRefreshCounts = window.nmmRefreshCounts || {};
 
-    _each(validBidRequests, function(bid) {
+    _each(validBidRequests, (bid) => {
       window.nmmRefreshCounts[bid.adUnitCode] = window.nmmRefreshCounts[bid.adUnitCode] || 0;
       const id = getPlacementId(bid);
       const auctionId = bid.auctionId;
@@ -135,6 +124,8 @@ export const spec = {
         params,
         auctionId,
       });
+
+      this.getUrlPixelMetric(CONSTANTS.EVENTS.BID_REQUESTED, bid);
     });
 
     return requests;
@@ -148,11 +139,6 @@ export const spec = {
       _each(resp.bid, (bid) => {
         const requestId = bidRequest.bidId;
         const params = bidRequest.params;
-        const auctionId = bidRequest.auctionId;
-        const wurl = deepAccess(bid, 'ext.prebid.events.win');
-
-        // TODO: fix auctionId leak: https://github.com/prebid/Prebid.js/issues/9781
-        addWurl({auctionId, requestId, wurl});
 
         const {ad, adUrl, vastUrl, vastXml} = getAd(bid);
 
@@ -182,6 +168,8 @@ export const spec = {
         };
 
         bidResponses.push(bidResponse);
+
+        this.getUrlPixelMetric(CONSTANTS.EVENTS.BID_RESPONSE, bid);
       });
     });
 
@@ -215,6 +203,16 @@ export const spec = {
   },
 
   getUrlPixelMetric(eventName, bid) {
+    const disabledSending = !!config.getBidderConfig()?.nextMillennium?.disabledSendingStatisticData;
+    if (disabledSending) return;
+
+    const url = this._getUrlPixelMetric(eventName, bid);
+    if (!url) return;
+
+    triggerPixel(url);
+  },
+
+  _getUrlPixelMetric(eventName, bid) {
     const bidder = bid.bidder || bid.bidderCode;
     if (bidder != BIDDER_CODE) return;
 
@@ -248,6 +246,12 @@ export const spec = {
 
     return url;
   },
+
+  onTimeout(bids) {
+    for (const bid of bids) {
+      this.getUrlPixelMetric(CONSTANTS.EVENTS.BID_TIMEOUT, bid);
+    };
+  },
 };
 
 export function getImp(bid, id, mediaTypes) {
@@ -267,8 +271,12 @@ export function getImp(bid, id, mediaTypes) {
     if (banner.bidfloorcur) imp.bidfloorcur = banner.bidfloorcur;
     if (banner.bidfloor) imp.bidfloor = banner.bidfloor;
 
+    const format = (banner.data?.sizes || []).map(s => { return {w: s[0], h: s[1]} })
+    const {w, h} = (format[0] || {})
     imp.banner = {
-      format: (banner.data?.sizes || []).map(s => { return {w: s[0], h: s[1]} }),
+      w,
+      h,
+      format,
     };
   };
 
@@ -487,126 +495,4 @@ function getSua() {
   };
 }
 
-function getKeyWurl({auctionId, requestId}) {
-  return `${auctionId}-${requestId}`;
-}
-
-function addWurl({wurl, requestId, auctionId}) {
-  if (!wurl) return;
-
-  const expirence = Date.now() + EXPIRENCE_WURL;
-  const key = getKeyWurl({auctionId, requestId});
-  wurlMap[key] = {wurl, expirence};
-}
-
-function removeWurl({auctionId, requestId}) {
-  const key = getKeyWurl({auctionId, requestId});
-  delete wurlMap[key];
-}
-
-function getWurl({auctionId, requestId}) {
-  const key = getKeyWurl({auctionId, requestId});
-  return wurlMap[key] && wurlMap[key].wurl;
-}
-
-function bidWonHandler(bid) {
-  const {auctionId, requestId} = bid;
-  const wurl = getWurl({auctionId, requestId});
-  if (wurl) {
-    logMessage(`(nextmillennium) Invoking image pixel for wurl on BID_WIN: "${wurl}"`);
-    triggerPixel(wurl);
-    removeWurl({auctionId, requestId});
-  };
-}
-
-function auctionInitHandler() {
-  sendingDataStatistic.initEvents();
-}
-
-function cleanWurl() {
-  const dateNow = Date.now();
-  Object.keys(wurlMap).forEach(key => {
-    if (dateNow >= wurlMap[key].expirence) {
-      delete wurlMap[key];
-    };
-  });
-
-  setTimeout(cleanWurl, 60000);
-}
-
-function initSendingDataStatistic() {
-  class SendingDataStatistic {
-    eventNames = [
-      CONSTANTS.EVENTS.BID_TIMEOUT,
-      CONSTANTS.EVENTS.BID_RESPONSE,
-      CONSTANTS.EVENTS.BID_REQUESTED,
-      CONSTANTS.EVENTS.NO_BID,
-    ];
-
-    disabledSending = false;
-    enabledSending = false;
-    eventHendlers = {};
-
-    initEvents() {
-      this.disabledSending = !!config.getBidderConfig()?.nextMillennium?.disabledSendingStatisticData;
-      if (this.disabledSending) {
-        this.removeEvents();
-      } else {
-        this.createEvents();
-      };
-    }
-
-    createEvents() {
-      if (this.enabledSending) return;
-
-      this.enabledSending = true;
-      for (let eventName of this.eventNames) {
-        if (!this.eventHendlers[eventName]) {
-          this.eventHendlers[eventName] = this.eventHandler(eventName);
-        };
-
-        events.on(eventName, this.eventHendlers[eventName]);
-      };
-    }
-
-    removeEvents() {
-      if (!this.enabledSending) return;
-
-      this.enabledSending = false;
-      for (let eventName of this.eventNames) {
-        if (!this.eventHendlers[eventName]) continue;
-
-        events.off(eventName, this.eventHendlers[eventName]);
-      };
-    }
-
-    eventHandler(eventName) {
-      const eventHandlerFunc = this.getEventHandler(eventName);
-      if (eventName == CONSTANTS.EVENTS.BID_TIMEOUT) {
-        return bids => {
-          if (this.disabledSending || !Array.isArray(bids)) return;
-
-          for (let bid of bids) {
-            eventHandlerFunc(bid);
-          };
-        }
-      };
-
-      return eventHandlerFunc;
-    }
-
-    getEventHandler(eventName) {
-      return bid => {
-        if (this.disabledSending) return;
-
-        const url = spec.getUrlPixelMetric(eventName, bid);
-        if (!url) return;
-        triggerPixel(url);
-      };
-    }
-  };
-
-  return new SendingDataStatistic();
-}
-
 registerBidder(spec);
diff --git a/test/spec/modules/nextMillenniumBidAdapter_spec.js b/test/spec/modules/nextMillenniumBidAdapter_spec.js
index b9871bbbe71..6b7c559229b 100644
--- a/test/spec/modules/nextMillenniumBidAdapter_spec.js
+++ b/test/spec/modules/nextMillenniumBidAdapter_spec.js
@@ -34,7 +34,7 @@ describe('nextMillenniumBidAdapterTests', () => {
           bidfloorcur: 'EUR',
           bidfloor: 1.11,
           ext: {prebid: {storedrequest: {id: '123'}}},
-          banner: {format: [{w: 300, h: 250}, {w: 320, h: 250}]},
+          banner: {w: 300, h: 250, format: [{w: 300, h: 250}, {w: 320, h: 250}]},
         },
       },
 
@@ -902,7 +902,7 @@ describe('nextMillenniumBidAdapterTests', () => {
     ];
 
     for (let {eventName, bid, expected} of dataForTests) {
-      const url = spec.getUrlPixelMetric(eventName, bid);
+      const url = spec._getUrlPixelMetric(eventName, bid);
       expect(url).to.equal(expected);
     };
   })