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Portfolio Holdings Detail for ISIN IE00B5BMR087
Stock Name / FundiShares Core S&P 500 UCITS ETF USD (Acc)
IssuerBlackrock
Entity holding fund iShares VII Public Limited Company
Entity TypeUmbrella investment company with variable capital and having segregated liability between its funds
Entity LEI 549300Q7FFITMZ2PFZ28
ETF TickerCSP1(GBX) LSE
ETF TickerSXR8(EUR) F
ETF TickerCSP1.LS(GBX) CXE
ETF TickerCSPX.AS(EUR) CXE
ETF TickerCSPX.LS(USD) CXE
ETF TickerCSSPX.MI(EUR) CXE
ETF TickerCSSPXz(USD) CXE
ETF TickerSXR8.DE(EUR) CXE
ETF TickerCSSPX(EUR) ETF Plus
ETF TickerCSPX(EUR) Euronext Amsterdam
ETF TickerCSP1.L(GBP) LSE

Holdings detail for BIIB

Stock NameBiogen Inc
TickerBIIB(USD) NASDAQ
TYPECommon Stock
CountryUSA
ISINUS09062X1037
LEIW8J5WZB5IY3K0NDQT671

Show aggregate BIIB holdings

News associated with BIIB

Analysts Set Biogen Inc. (NASDAQ:BIIB) PT at $185.74
Shares of Biogen Inc. (NASDAQ:BIIB – Get Free Report) have earned a consensus rating of “Hold” from the thirty-two research firms that are currently covering the company, MarketBeat Ratings reports. Twenty-one research analysts have rated the stock with a hold rating and eleven have assigned a buy rating to the company. The average twelve-month price […] - 2025-09-08 03:08:53
Stocks Retreat as Bond Yields Climb
The S&P 500 Index ($SPX ) (SPY ) on Tuesday closed down by -0.69%, the Dow Jones Industrials Index ($DOWI ) (DIA ) closed down by -0.55%, and the Nasdaq 100 Index ($IUXX ) (QQQ ) closed down by -0.79%. September E-mini S&P futures (ESU25 ) fell -0.65%, and September... - 2025-09-03 14:33:33
Notable Wednesday Option Activity: WDC, ADBE, BIIB
Looking at options trading activity among components of the S&P 500 index, there is noteworthy activity today in Western Digital Corp (Symbol: WDC), where a total volume of 31,773 contracts has been traded thus far today, a contract volume which is representative of approxim - 2025-09-03 14:18:29
Stocks Retreat as Bond Yields Climb
The S&P 500 Index ($SPX ) (SPY ) on Tuesday closed down by -0.69%, the Dow Jones Industrials Index ($DOWI ) (DIA ) closed down by -0.55%, and the Nasdaq 100 Index ($IUXX ) (QQQ ) closed down by -0.79%. September E-mini S&P futures (ESU25 ) fell -0.65%, and September... - 2025-09-03 13:44:52
Stocks Retreat as Bond Yields Climb
The S&P 500 Index ($SPX ) (SPY ) on Tuesday closed down by -0.69%, the Dow Jones Industrials Index ($DOWI ) (DIA ) closed down by -0.55%, and the Nasdaq 100 Index ($IUXX ) (QQQ ) closed down by -0.79%. September E-mini S&P futures (ESU25 ) fell -0.65%, and September... - 2025-09-03 12:52:53
Stocks Retreat as Bond Yields Climb
The S&P 500 Index ($SPX ) (SPY ) on Tuesday closed down by -0.69%, the Dow Jones Industrials Index ($DOWI ) (DIA ) closed down by -0.55%, and the Nasdaq 100 Index ($IUXX ) (QQQ ) closed down by -0.79%. September E-mini S&P futures (ESU25 ) fell -0.65%, and September... - 2025-09-03 12:27:04
Stocks Retreat as Bond Yields Climb
The S&P 500 Index ($SPX ) (SPY ) on Tuesday closed down by -0.69%, the Dow Jones Industrials Index ($DOWI ) (DIA ) closed down by -0.55%, and the Nasdaq 100 Index ($IUXX ) (QQQ ) closed down by -0.79%. September E-mini S&P futures (ESU25 ) fell -0.65%, and September... - 2025-09-03 10:14:11
Stocks Retreat as Bond Yields Climb
The S&P 500 Index ($SPX ) (SPY ) on Tuesday closed down by -0.69%, the Dow Jones Industrials Index ($DOWI ) (DIA ) closed down by -0.55%, and the Nasdaq 100 Index ($IUXX ) (QQQ ) closed down by -0.79%. September E-mini S&P futures (ESU25 ) fell -0.65%, and September... - 2025-09-03 08:10:07
Stocks Retreat as Bond Yields Climb
The S&P 500 Index ($SPX ) (SPY ) on Tuesday closed down by -0.69%, the Dow Jones Industrials Index ($DOWI ) (DIA ) closed down by -0.55%, and the Nasdaq 100 Index ($IUXX ) (QQQ ) closed down by -0.79%. September E-mini S&P futures (ESU25 ) fell -0.65%, and September... - 2025-09-03 06:59:07
Stocks Retreat as Bond Yields Climb
The S&P 500 Index ($SPX ) (SPY ) on Tuesday closed down by -0.69%, the Dow Jones Industrials Index ($DOWI ) (DIA ) closed down by -0.55%, and the Nasdaq 100 Index ($IUXX ) (QQQ ) closed down by -0.79%. September E-mini S&P futures (ESU25 ) fell -0.65%, and September... - 2025-09-03 05:15:06
Stocks Retreat as Bond Yields Climb
The S&P 500 Index ($SPX ) (SPY ) on Tuesday closed down by -0.69%, the Dow Jones Industrials Index ($DOWI ) (DIA ) closed down by -0.55%, and the Nasdaq 100 Index ($IUXX ) (QQQ ) closed down by -0.79%. September E-mini S&P futures (ESU25 ) fell -0.65%, and September... - 2025-09-03 04:43:16
Stocks Retreat as Bond Yields Climb
The S&P 500 Index ($SPX ) (SPY ) on Tuesday closed down by -0.69%, the Dow Jones Industrials Index ($DOWI ) (DIA ) closed down by -0.55%, and the Nasdaq 100 Index ($IUXX ) (QQQ ) closed down by -0.79%. September E-mini S&P futures (ESU25 ) fell -0.65%, and September... - 2025-09-03 03:40:04
Stocks Retreat as Bond Yields Climb
The S&P 500 Index ($SPX ) (SPY ) on Tuesday closed down by -0.69%, the Dow Jones Industrials Index ($DOWI ) (DIA ) closed down by -0.55%, and the Nasdaq 100 Index ($IUXX ) (QQQ ) closed down by -0.79%. September E-mini S&P futures (ESU25 ) fell -0.65%, and September... - 2025-09-03 01:21:35
Stocks Tumble on Higher Bond Yields
The S&P 500 Index ($SPX ) (SPY ) today is down by -1.26%, the Dow Jones Industrials Index ($DOWI ) (DIA ) is down by -1.23%, and the Nasdaq 100 Index ($IUXX ) (QQQ ) is down by -1.38%. September E-mini S&P futures (ESU25 ) are down -1.25%, and September... - 2025-09-02 20:15:06
Stocks Under Pressure from Higher Bond Yields
The S&P 500 Index ($SPX ) (SPY ) today is down by -1.15%, the Dow Jones Industrials Index ($DOWI ) (DIA ) is down by -0.83%, and the Nasdaq 100 Index ($IUXX ) (QQQ ) is down by -1.32%. September E-mini S&P futures (ESU25 ) are down -1.15%, and September... - 2025-09-02 17:45:25
Stocks Under Pressure from Higher Bond Yields
The S&P 500 Index ($SPX ) (SPY ) today is down by -1.15%, the Dow Jones Industrials Index ($DOWI ) (DIA ) is down by -0.83%, and the Nasdaq 100 Index ($IUXX ) (QQQ ) is down by -1.32%. September E-mini S&P futures (ESU25 ) are down -1.15%, and September... - 2025-09-02 13:49:14
Stocks Tumble on Higher Bond Yields
The S&P 500 Index ($SPX ) (SPY ) today is down by -1.26%, the Dow Jones Industrials Index ($DOWI ) (DIA ) is down by -1.23%, and the Nasdaq 100 Index ($IUXX ) (QQQ ) is down by -1.38%. September E-mini S&P futures (ESU25 ) are down -1.25%, and September... - 2025-09-02 13:32:33
Stocks Tumble on Higher Bond Yields
The S&P 500 Index ($SPX ) (SPY ) today is down by -1.26%, the Dow Jones Industrials Index ($DOWI ) (DIA ) is down by -1.23%, and the Nasdaq 100 Index ($IUXX ) (QQQ ) is down by -1.38%. September E-mini S&P futures (ESU25 ) are down -1.25%, and September... - 2025-09-02 12:50:37
Eisai: FDA Approves LEQEMBI IQLIK For Maintenance Dosing In Treatment Of Early Alzheimer's
(RTTNews) - Eisai and Biogen (BIIB) announced that the FDA has approved the Biologics License Application for once weekly lecanemab-irmb subcutaneous injection, or LEQEMBI IQLIK, for maintenance dosing for the treatment of early Alzheimer's. LEQEMBI IQLIK will be launched on Octo - 2025-09-01 03:23:41
Biogen Inc. (NASDAQ:BIIB) Receives $185.63 Consensus PT from Analysts
Biogen Inc. (NASDAQ:BIIB – Get Free Report) has been given a consensus rating of “Hold” by the thirty-two research firms that are covering the stock, MarketBeat Ratings reports. Twenty-one analysts have rated the stock with a hold rating and eleven have given a buy rating to the company. The average 1-year price target among brokerages […] - 2025-08-14 03:06:52
Biogen (NASDAQ:BIIB) Price Target Raised to $219.00
Biogen (NASDAQ:BIIB – Free Report) had its price target upped by Royal Bank Of Canada from $208.00 to $219.00 in a research note released on Friday,Benzinga reports. The brokerage currently has an outperform rating on the biotechnology company’s stock. Other equities research analysts have also recently issued research reports about the stock. Canaccord Genuity Group […] - 2025-08-04 06:37:00
Biogen (NASDAQ:BIIB) Given New $194.00 Price Target at HC Wainwright
Biogen (NASDAQ:BIIB – Free Report) had its price objective upped by HC Wainwright from $187.00 to $194.00 in a research report released on Friday,Benzinga reports. HC Wainwright currently has a buy rating on the biotechnology company’s stock. A number of other analysts also recently issued reports on the stock. Mizuho dropped their price target on […] - 2025-08-04 04:35:01
Leerink Partnrs Estimates Biogen’s Q3 Earnings (NASDAQ:BIIB)
Biogen Inc. (NASDAQ:BIIB – Free Report) – Stock analysts at Leerink Partnrs cut their Q3 2025 earnings per share (EPS) estimates for Biogen in a research report issued to clients and investors on Thursday, July 31st. Leerink Partnrs analyst M. Goodman now expects that the biotechnology company will post earnings per share of $3.86 for […] - 2025-08-04 02:46:51
Biogen (NASDAQ:BIIB) Upgraded at Wall Street Zen
Biogen (NASDAQ:BIIB – Get Free Report) was upgraded by equities researchers at Wall Street Zen from a “hold” rating to a “buy” rating in a research note issued on Saturday. A number of other equities analysts also recently commented on the stock. Mizuho reduced their target price on shares of Biogen from $207.00 to $169.00 […] - 2025-08-04 02:14:53
Biogen (NASDAQ:BIIB) Stock Acquired Rep. Robert Bresnahan, Jr.
Representative Robert Bresnahan, Jr. (R-Pennsylvania) recently bought shares of Biogen Inc. (NASDAQ:BIIB). In a filing disclosed on June 09th, the Representative disclosed that they had bought between $1,001 and $15,000 in Biogen stock on May 15th. The trade occurred in the Representative’s “JP MORGAN BROKERAGE ACCOUNT” account. Representative Robert Bresnahan, Jr. also recently made the […] - 2025-08-01 03:02:52
Nasdaq 100 Movers: ARM, META
In early trading on Thursday, shares of Meta Platforms topped the list of the day's best performing components of the Nasdaq 100 index, trading up 12.5%. Year to date, Meta Platforms registers a 33.6% gain. And the worst performing Nasdaq 100 component thus far on the day is A - 2025-07-31 11:22:04
Eisai And Biogen Say Four Years Of Leqembi Helps In Slowing Down Alzheimer's Disease Progression
(RTTNews) - Eisai Co., Ltd. and Biogen Inc. (BIIB) Wednesday said results from Phase 3 Clarity AD study showed that continuous treatment with Leqembi helped in slowing down the progression in patients with early Alzheimer's disease. - 2025-07-30 10:43:06
HighPoint Advisor Group LLC Decreases Stock Holdings in Biogen Inc. (NASDAQ:BIIB)
HighPoint Advisor Group LLC cut its holdings in shares of Biogen Inc. (NASDAQ:BIIB – Free Report) by 10.2% in the first quarter, according to its most recent filing with the Securities and Exchange Commission. The fund owned 1,736 shares of the biotechnology company’s stock after selling 198 shares during the quarter. HighPoint Advisor Group LLC’s […] - 2025-07-25 05:52:55
Teachers Retirement System of The State of Kentucky Has $1.53 Million Position in Biogen Inc. (NASDAQ:BIIB)
Teachers Retirement System of The State of Kentucky increased its holdings in Biogen Inc. (NASDAQ:BIIB – Free Report) by 2.8% in the 1st quarter, according to its most recent disclosure with the Securities & Exchange Commission. The institutional investor owned 11,213 shares of the biotechnology company’s stock after purchasing an additional 301 shares during the […] - 2025-07-25 05:05:17
Biogen Inc. (NASDAQ:BIIB) Stake Raised by Victory Capital Management Inc.
Victory Capital Management Inc. boosted its stake in shares of Biogen Inc. (NASDAQ:BIIB – Free Report) by 4.8% during the 1st quarter, according to the company in its most recent filing with the Securities and Exchange Commission. The firm owned 124,756 shares of the biotechnology company’s stock after buying an additional 5,723 shares during the […] - 2025-07-23 07:50:52

iShares Core S&P 500 UCITS ETF USD (Acc) BIIB holdings

DateNumber of BIIB Shares HeldBase Market Value of BIIB SharesLocal Market Value of BIIB SharesChange in BIIB Shares HeldChange in BIIB Base ValueCurrent Price per BIIB Share HeldPrevious Price per BIIB Share Held
2025-09-25 (Thursday)344,624BIIB holding increased by 280USD 46,755,138BIIB holding decreased by -650700USD 46,755,138280USD -650,700 USD 135.67 USD 137.67
2025-09-24 (Wednesday)344,344USD 47,405,838USD 47,405,838
2025-09-18 (Thursday)343,304BIIB holding increased by 20USD 49,370,548BIIB holding decreased by -361005USD 49,370,54820USD -361,005 USD 143.81 USD 144.87
2025-09-17 (Wednesday)343,284BIIB holding increased by 180USD 49,731,553BIIB holding increased by 434370USD 49,731,553180USD 434,370 USD 144.87 USD 143.68
2025-09-16 (Tuesday)343,104BIIB holding increased by 80USD 49,297,183BIIB holding increased by 134983USD 49,297,18380USD 134,983 USD 143.68 USD 143.32
2025-09-15 (Monday)343,024USD 49,162,200USD 49,162,200
2025-09-12 (Friday)342,824USD 49,661,485USD 49,661,485
2025-09-11 (Thursday)342,764BIIB holding increased by 100USD 51,016,994BIIB holding increased by 2149681USD 51,016,994100USD 2,149,681 USD 148.84 USD 142.61
2025-09-10 (Wednesday)342,664USD 48,867,313BIIB holding decreased by -339237USD 48,867,3130USD -339,237 USD 142.61 USD 143.6
Share price and value of shares held is calculated on the adjusted close price of each day (row). Changes between days reflect the gain/loss of the portfolio as a result of changes in the adjusted close price and changes in the holdings

Share Trades of BIIB by Blackrock for IE00B5BMR087

Show aggregate share trades of BIIB

DateActionQuantityMarket HighMarket LowLikely Trade PriceLikely Trade Value (Profit/Loss)Average Price previous trades
2025-09-25BUY280 135.670* 139.51
2025-09-18BUY20 143.810* 139.49
2025-09-17BUY180 144.870* 139.46
2025-09-16BUY80 143.680* 139.43
2025-09-11BUY100 148.840* 139.38
2025-09-09BUY100 143.600* 139.34
2025-09-08BUY40 141.350* 139.33
2025-09-05BUY460 140.670* 139.32
2025-08-22BUY20 139.310* 139.32
2025-08-21BUY60 139.120* 139.32
2025-08-20BUY80 138.990* 139.32
2025-08-19BUY120 138.860* 139.32
2025-07-31BUY20 128.000* 139.39
2025-07-30BUY160 126.640* 139.47
2025-07-29BUY20 127.900* 139.54
2025-07-24BUY20 132.590* 139.58
2025-07-23BUY120 130.980* 139.64
2025-07-22BUY180 127.850* 139.71
2025-07-21BUY40 122.680* 139.82
2025-07-18SELL-200 124.990* 139.91 Profit of 27,982 on sale
2025-07-17BUY20 128.690* 139.98
2025-07-16BUY80 128.460* 140.05
2025-07-15SELL-315 127.500* 140.13 Profit of 44,142 on sale
2025-07-11SELL-40 134.210* 140.17 Profit of 5,607 on sale
2025-07-10BUY160 135.330* 140.20
2025-07-09BUY160 133.020* 140.25
2025-07-08BUY120 134.460* 140.29
2025-07-07SELL-460 130.130* 140.36 Profit of 64,564 on sale
2025-07-02SELL-580 133.190* 140.51 Profit of 81,493 on sale
2025-06-30BUY340 125.590* 140.61
2025-06-27BUY180 126.080* 140.71
2025-06-25SELL-40 127.310* 140.89 Profit of 5,636 on sale
2025-06-24BUY20 126.310* 141.00
2025-06-23BUY520 124.760* 141.11
2025-06-20SELL-60 127.040* 141.21 Profit of 8,473 on sale
2025-06-18SELL-120 126.540* 141.42 Profit of 16,971 on sale
2025-06-13SELL-60 130.650* 141.69 Profit of 8,501 on sale
2025-06-12BUY60 132.310* 141.76
2025-06-11BUY80 133.060* 141.82
2025-06-06SELL-100 133.130* 141.99 Profit of 14,199 on sale
2025-06-05SELL-60 130.360* 142.08 Profit of 8,525 on sale
2025-06-04SELL-80 131.860* 142.16 Profit of 11,373 on sale
2025-06-02BUY260 131.140* 142.33
2025-05-30SELL-60 129.790* 142.43 Profit of 8,546 on sale
2025-05-29BUY20 132.750* 142.51
2025-05-28SELL-20 127.530* 142.63 Profit of 2,853 on sale
2025-05-27BUY220 128.390* 142.74
2025-05-23SELL-400 125.810* 143.02 Profit of 57,210 on sale
2025-05-22SELL-440 126.300* 143.16 Profit of 62,992 on sale
2025-05-21BUY20 126.820* 143.30
2025-05-20BUY160 130.550* 143.41
2025-05-19BUY580 129.440* 143.53
2025-05-16BUY540 125.590* 143.68
2025-05-15BUY440 123.700* 143.86
2025-05-14BUY400 120.370* 144.06
2025-05-13SELL-80 123.160* 144.25 Profit of 11,540 on sale
2025-05-12BUY20 124.400* 144.43
2025-05-09BUY60 118.170* 144.66
2025-05-08SELL-580 118.390* 144.90 Profit of 84,043 on sale
2025-05-07SELL-280 117.210* 145.16 Profit of 40,643 on sale
2025-05-06BUY700 116.820* 145.42
2025-05-02BUY60 123.530* 145.85
2025-05-01SELL-100 120.930* 146.08 Profit of 14,608 on sale
2025-04-30BUY60 121.080* 146.32
2025-04-29BUY140 120.170* 146.58
2025-04-28BUY298 119.120* 146.85
2025-04-25BUY280 118.840* 147.12
2025-04-24BUY80 119.510* 147.40
2025-04-23BUY220 118.170* 147.70
2025-04-22SELL-122 118.890* 147.99 Profit of 18,055 on sale
2025-04-17BUY40 118.610* 148.94
2025-04-16BUY80 115.290* 149.30
2025-04-15BUY400 116.980* 149.65
2025-04-11BUY500 115.170* 150.36
2025-04-10BUY820 113.380* 150.77
2025-04-09BUY160 120.490* 151.11
2025-04-08BUY420 114.050* 151.53
2025-04-07BUY479 119.190* 151.90
2025-04-04SELL-1,200 122.980* 152.24 Profit of 182,687 on sale
2025-04-02BUY140 131.320* 152.49
2025-03-31SELL-540 136.840* 152.92 Profit of 82,577 on sale
2025-03-28SELL-340 138.370* 153.10 Profit of 52,053 on sale
2025-03-27SELL-100 140.330* 153.26 Profit of 15,326 on sale
2025-03-26BUY180 142.430* 153.39
2025-03-25SELL-240 139.160* 153.57 Profit of 36,857 on sale
2025-03-24BUY140 141.600* 153.72
2025-03-21BUY240 140.900* 153.89
2025-03-19BUY38 141.430* 154.22
2025-03-18SELL-360 143.090* 154.37 Profit of 55,575 on sale
2025-03-17BUY380 143.540* 154.52
2025-03-14BUY340 139.440* 154.73
2025-03-13BUY1,678 139.980* 154.94
2025-03-12BUY800 140.190* 155.15
2025-03-11BUY320 143.660* 155.32
2025-03-07BUY194 150.380* 155.46
2025-03-06SELL-180 147.370* 155.58 Profit of 28,005 on sale
2025-03-05BUY622 143.770* 155.76
2025-03-04BUY120 142.650* 155.97
2025-03-03BUY540 141.710* 156.19
2025-02-28SELL-140 140.500* 156.45 Profit of 21,903 on sale
2025-02-27BUY20 139.880* 156.72
2025-02-26SELL-40 140.490* 156.99 Profit of 6,280 on sale
2025-02-25BUY380 143.460* 157.22
2025-02-21BUY280 140.640* 157.79
2025-02-20BUY160 137.080* 158.16
2025-02-19BUY40 136.680* 158.55
2025-02-18BUY100 136.570* 158.96
2025-02-13BUY340 138.450* 160.21
2025-02-12BUY120 133.430* 160.74
2025-02-11SELL-40 139.390* 161.18 Profit of 6,447 on sale
2025-02-07SELL-160 141.350* 162.00 Profit of 25,920 on sale
2025-02-06BUY80 142.370* 162.42
2025-02-04BUY700 142.490* 163.26
2025-02-03BUY260 142.340* 163.75
2025-01-31BUY60 143.930* 164.22
2025-01-30BUY40 146.230* 164.66
2025-01-29BUY380 144.410* 165.16
2025-01-28BUY180 145.490* 165.67
2025-01-27BUY280 148.760* 166.11
2025-01-24BUY180 146.200* 166.65
2025-01-23BUY520 143.670* 167.29
2025-01-22BUY340 142.750* 167.99
2025-01-06BUY200 153.270* 168.42
2024-12-10BUY140 156.320* 168.79
2024-12-09BUY160 156.460* 169.18
2024-12-06BUY240 157.780* 169.54
2024-12-05BUY60 159.260* 169.89
2024-12-04BUY220 160.920* 170.20
2024-12-03BUY706 160.850* 170.53
2024-12-02BUY59 164.230* 170.76
2024-11-29BUY460 160.630* 171.15
2024-11-27BUY540 159.830* 172.10
2024-11-26BUY1,160 157.690* 172.72
2024-11-25BUY1,200 158.710* 173.36
2024-11-22BUY1,400 157.900* 174.10
2024-11-21BUY220 158.010* 174.90
2024-11-20BUY200 156.000* 175.90
2024-11-19BUY180 155.430* 177.03
2024-11-18BUY1,620 157.940* 178.16
2024-11-12BUY560 168.280* 178.77
2024-11-11BUY380 172.030* 179.22
2024-11-08BUY284 173.040* 179.66
2024-11-07BUY1,780 173.920* 180.11
2024-11-06BUY540 174.400* 180.58
2024-11-05BUY798 176.930* 180.91
2024-11-04BUY140 173.520* 181.65
2024-11-01BUY320 173.790* 182.53
2024-10-31BUY80 174.000* 183.59
2024-10-30BUY199 181.180* 183.94
2024-10-29BUY480 183.470* 184.01
2024-10-28SELL-140 185.010* 183.82 Profit of 25,734 on sale
2024-10-25BUY240 181.690* 184.35
2024-10-24BUY160 183.860* 184.51
2024-10-23BUY200 182.980* 185.27
2024-10-22BUY517 185.900* 184.65
2024-10-21BUY560 184.650* 0.00
Market high and low price is on the date.

* (if shown) = market close price used not a projected price. This is used when we do not have market data available to calculate a projection

The likely trade price/value is our estimate on the likely price the trade took place at and is not the actual trade price. The likely LOSS/GAIN is our estimate. Where a profit/loss value is shown in the Likely Trade Value column, this is derived from matching trades between periods eg the most recent previous BUY is matched with the SELL for the same number of shares and the difference between the likely BUY price and likely SELL price is calculated. Where a profit or loss is shown in the Average Price of Previous Trades column, this is dervied using the likely trade price compared to the average of previous trades based on adjusted close

Shorting History of BIIB

DateShorted VolumeShort Exempt VolumeTotal Shares Traded% Shorted
2025-09-19279,6550539,46151.8%
2025-09-18316,85554575,80555.0%
2025-09-17276,54555493,36356.1%
2025-09-16408,065142977,20341.8%
2025-09-15299,741153539,80355.5%
2025-09-12450,1120778,16257.8%
2025-09-11451,9530661,04668.4%
2025-09-10388,46511525,09674.0%
2025-09-09405,8190562,75072.1%
2025-09-08377,871120608,54162.1%
2025-09-05347,099196546,16063.6%
2025-09-04329,1254461,87071.3%
2025-09-03576,8764898,14164.2%
2025-09-02480,74580856,53056.1%
2025-08-29138,9890311,40044.6%
2025-08-28275,50722550,65350.0%
2025-08-27211,0241,215619,32134.1%
2025-08-26207,8735385,08254.0%
2025-08-25179,74874300,16259.9%
2025-08-22211,4255403,65452.4%
2025-08-21206,61927446,19246.3%
2025-08-20229,6250438,53452.4%
2025-08-19257,9790550,69446.8%
2025-08-18270,4250642,14242.1%
2025-08-15304,44229627,20848.5%
2025-08-14194,9950392,78749.6%
2025-08-13238,8070578,13641.3%
2025-08-12141,77818410,20034.6%
2025-08-11155,123637362,67742.8%
2025-08-08179,905201492,68536.5%
2025-08-07163,40490590,86327.7%
2025-08-06233,480133580,09140.2%
2025-08-05183,1741,199457,56540.0%
2025-08-04301,94179709,01542.6%
2025-08-01400,642241,470,58527.2%
2025-07-31638,77841,315,67448.6%
2025-07-30329,46212644,33951.1%
2025-07-29182,531119370,96349.2%
2025-07-28158,19934369,65542.8%
2025-07-25143,55466334,32942.9%
2025-07-24211,426442363,87858.1%
2025-07-23230,8560402,05957.4%
2025-07-22216,4411,176461,13846.9%
2025-07-21263,01632550,04147.8%
2025-07-18262,434316486,09554.0%

The data here is derived from FINRA daily shorted trade data. The Daily Short Sale Volume is the total volume of short trades that meet certain criteria on each trade date by 6 PM ET on the trade date. The detail trade data is derived from the monthly shorted trade data which will differ in aggregate. The detail trade data is derived from the transaction level data and includes ALL trades (including exempt) and the aggregation period extends beyond 6pm.

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