Portfolio Holdings Detail for ISIN IE00BZ173V67
Stock Name / FundiShares MSCI USA SRI UCITS ETF EUR Hedged (Dist)
IssuerBlackrock
Entity holding fund iShares IV Public Limited Company
Entity Type
Entity LEI 549300ZP07LMR36K1T02
ETF Ticker3SUR(EUR) ETF Plus

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 MSCI USA SRI UCITS ETF EUR Hedged (Dist) 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
2025-09-26 (Friday)42,138USD 5,788,497USD 5,788,497
2025-09-25 (Thursday)42,200USD 5,725,274BIIB holding decreased by -84400USD 5,725,2740USD -84,400 USD 135.67 USD 137.67
2025-09-24 (Wednesday)42,200USD 5,809,674USD 5,809,674
2025-09-18 (Thursday)42,265BIIB holding decreased by -62USD 6,078,130BIIB holding decreased by -53782USD 6,078,130-62USD -53,782 USD 143.81 USD 144.87
2025-09-17 (Wednesday)42,327USD 6,131,912BIIB holding increased by 50369USD 6,131,9120USD 50,369 USD 144.87 USD 143.68
2025-09-16 (Tuesday)42,327USD 6,081,543BIIB holding increased by 15237USD 6,081,5430USD 15,237 USD 143.68 USD 143.32
2025-09-15 (Monday)42,327USD 6,066,306BIIB holding decreased by -65183USD 6,066,3060USD -65,183 USD 143.32 USD 144.86
2025-09-12 (Friday)42,327USD 6,131,489BIIB holding decreased by -168462USD 6,131,4890USD -168,462 USD 144.86 USD 148.84
2025-09-11 (Thursday)42,327USD 6,299,951BIIB holding increased by 263698USD 6,299,9510USD 263,698 USD 148.84 USD 142.61
2025-09-10 (Wednesday)42,327USD 6,036,253USD 6,036,253
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 IE00BZ173V67

Show aggregate share trades of BIIB

DateActionQuantityMarket HighMarket LowLikely Trade PriceLikely Trade Value (Profit/Loss)Average Price previous trades
2025-09-18SELL-62 143.810* 139.76 Profit of 8,665 on sale
2025-08-21SELL-124 139.120* 139.70 Profit of 17,323 on sale
2025-08-20SELL-155 138.990* 139.70 Profit of 21,654 on sale
2025-08-18SELL-93 135.910* 139.73 Profit of 12,995 on sale
2025-08-12SELL-527 128.930* 139.81 Profit of 73,682 on sale
2025-08-07SELL-372 127.750* 140.00 Profit of 52,079 on sale
2025-08-04SELL-62 132.200* 140.08 Profit of 8,685 on sale
2025-07-31SELL-62 128.000* 140.20 Profit of 8,692 on sale
2025-07-30SELL-403 126.640* 140.28 Profit of 56,531 on sale
2025-07-29SELL-217 127.900* 140.35 Profit of 30,455 on sale
2025-07-28SELL-279 129.280* 140.41 Profit of 39,175 on sale
2025-07-22SELL-31 127.850* 140.54 Profit of 4,357 on sale
2025-07-18BUY31 124.990* 140.74
2025-07-17BUY31 128.690* 140.81
2025-07-16SELL-248 128.460* 140.88 Profit of 34,939 on sale
2025-07-15SELL-186 127.500* 140.96 Profit of 26,219 on sale
2025-07-10BUY186 135.330* 141.00
2025-07-09SELL-155 133.020* 141.05 Profit of 21,862 on sale
2025-07-08SELL-848 134.460* 141.09 Profit of 119,643 on sale
2025-06-26SELL-31 126.920* 141.50 Profit of 4,387 on sale
2025-06-24SELL-91 126.310* 141.70 Profit of 12,894 on sale
2025-06-20SELL-636 127.040* 141.90 Profit of 90,251 on sale
2025-06-17SELL-1,331 126.560* 142.21 Profit of 189,285 on sale
2025-06-13SELL-155 130.650* 142.37 Profit of 22,067 on sale
2025-06-12BUY150 132.310* 142.44
2025-06-09SELL-341 134.150* 142.61 Profit of 48,630 on sale
2025-06-06SELL-90 133.130* 142.68 Profit of 12,841 on sale
2025-06-04SELL-589 131.860* 142.84 Profit of 84,133 on sale
2025-06-03SELL-155 131.840* 142.92 Profit of 22,153 on sale
2025-05-30BUY2,440 129.790* 143.10
2025-05-27SELL-29 128.390* 143.40 Profit of 4,159 on sale
2025-05-23SELL-377 125.810* 143.67 Profit of 54,164 on sale
2025-05-21SELL-145 126.820* 143.93 Profit of 20,871 on sale
2025-05-19SELL-52 129.440* 144.15 Profit of 7,496 on sale
2025-05-15SELL-58 123.700* 144.46 Profit of 8,379 on sale
2025-05-14SELL-58 120.370* 144.65 Profit of 8,390 on sale
2025-05-13SELL-29 123.160* 144.83 Profit of 4,200 on sale
2025-05-12SELL-87 124.400* 144.99 Profit of 12,614 on sale
2025-05-09SELL-28 118.170* 145.21 Profit of 4,066 on sale
2025-05-08SELL-348 118.390* 145.44 Profit of 50,612 on sale
2025-04-30SELL-232 121.080* 146.75 Profit of 34,046 on sale
2025-04-28SELL-1,131 119.120* 147.23 Profit of 166,518 on sale
2025-04-25BUY145 118.840* 147.48
2025-04-23SELL-60 118.170* 148.00 Profit of 8,880 on sale
2025-04-17BUY29 118.610* 149.13
2025-04-14SELL-58 119.260* 150.06 Profit of 8,704 on sale
2025-04-11SELL-29 115.170* 150.40 Profit of 4,362 on sale
2025-04-10SELL-29 113.380* 150.77 Profit of 4,372 on sale
2025-04-09BUY87 120.490* 151.07
2025-04-08SELL-87 114.050* 151.45 Profit of 13,176 on sale
2025-04-07SELL-348 119.190* 151.78 Profit of 52,818 on sale
2025-04-04SELL-290 122.980* 152.07 Profit of 44,101 on sale
2025-04-02SELL-520 131.320* 152.29 Profit of 79,191 on sale
2025-03-31SELL-87 136.840* 152.67 Profit of 13,282 on sale
2025-03-28BUY58 138.370* 152.82
2025-03-27BUY13 140.330* 152.96
2025-03-26BUY87 142.430* 153.08
2025-03-25BUY145 139.160* 153.23
2025-03-21SELL-145 140.900* 153.50 Profit of 22,258 on sale
2025-03-20SELL-29 141.380* 153.64 Profit of 4,456 on sale
2025-03-19SELL-145 141.430* 153.78 Profit of 22,299 on sale
2025-03-18SELL-87 143.090* 153.91 Profit of 13,390 on sale
2025-03-14SELL-145 139.440* 154.21 Profit of 22,360 on sale
2025-03-13SELL-667 139.980* 154.38 Profit of 102,973 on sale
2025-03-12SELL-29 140.190* 154.56 Profit of 4,482 on sale
2025-03-11SELL-173 143.660* 154.69 Profit of 26,762 on sale
2025-03-07SELL-783 150.380* 154.80 Profit of 121,208 on sale
2025-03-05SELL-87 143.770* 154.94 Profit of 13,480 on sale
2025-03-03BUY290 141.710* 155.28
2025-02-28SELL-4,623 140.500* 155.48 Profit of 718,798 on sale
2025-02-27SELL-58 139.880* 155.70 Profit of 9,030 on sale
2025-02-26SELL-620 140.490* 155.91 Profit of 96,663 on sale
2025-02-25SELL-527 143.460* 156.08 Profit of 82,256 on sale
2025-02-21SELL-651 140.640* 156.52 Profit of 101,896 on sale
2025-02-20SELL-1,147 137.080* 156.81 Profit of 179,858 on sale
2025-02-19SELL-1,209 136.680* 157.11 Profit of 189,944 on sale
2025-02-13SELL-1,302 138.450* 158.36 Profit of 206,182 on sale
2025-02-12SELL-434 133.430* 158.76 Profit of 68,902 on sale
2025-02-11SELL-279 139.390* 159.08 Profit of 44,383 on sale
2025-02-10SELL-31 142.540* 159.35 Profit of 4,940 on sale
2025-02-07SELL-651 141.350* 159.66 Profit of 103,938 on sale
2025-02-06SELL-31 142.370* 159.96 Profit of 4,959 on sale
2025-02-05SELL-93 145.530* 160.21 Profit of 14,899 on sale
2025-02-04SELL-310 142.490* 160.53 Profit of 49,763 on sale
2025-02-03SELL-372 142.340* 160.86 Profit of 59,839 on sale
2025-01-29SELL-558 144.410* 161.78 Profit of 90,273 on sale
2025-01-28SELL-589 145.490* 162.10 Profit of 95,476 on sale
2025-01-24SELL-62 146.200* 162.70 Profit of 10,087 on sale
2025-01-23SELL-62 143.670* 163.09 Profit of 10,112 on sale
2024-12-23SELL-31 149.380* 165.26 Profit of 5,123 on sale
2024-12-20SELL-31 146.470* 165.73 Profit of 5,138 on sale
2024-12-19SELL-186 147.390* 166.20 Profit of 30,913 on sale
2024-12-18BUY186 146.790* 166.71
2024-12-17SELL-62 150.640* 167.15 Profit of 10,363 on sale
2024-12-13BUY31 150.030* 168.11
2024-12-11SELL-155 157.460* 168.42 Profit of 26,106 on sale
2024-12-10SELL-60 156.320* 168.79 Profit of 10,127 on sale
2024-12-09BUY186 156.460* 169.18
2024-12-04BUY31 160.920* 170.20
2024-12-02SELL-116 164.230* 170.76 Profit of 19,809 on sale
2024-11-27BUY93 159.830* 172.10
2024-11-26SELL-124 157.690* 172.72 Profit of 21,418 on sale
2024-11-22SELL-217 157.900* 174.10 Profit of 37,779 on sale
2024-11-21SELL-62 158.010* 174.90 Profit of 10,844 on sale
2024-11-19BUY155 155.430* 177.03
2024-11-18SELL-749 157.940* 178.16 Profit of 133,439 on sale
2024-11-12BUY62 168.280* 178.77
2024-11-07BUY558 173.920* 180.11
2024-11-05BUY465 176.930* 180.91
2024-11-04SELL-124 173.520* 181.65 Profit of 22,525 on sale
2024-11-01SELL-1,302 173.790* 182.53 Profit of 237,650 on sale
2024-10-31BUY279 174.000* 183.59
2024-10-30SELL-93 181.180* 183.94 Profit of 17,106 on sale
2024-10-29SELL-2,010 183.470* 184.01 Profit of 369,870 on sale
2024-10-28SELL-60 185.010* 183.82 Profit of 11,029 on sale
2024-10-25SELL-2,294 181.690* 184.35 Profit of 422,893 on sale
2024-10-24SELL-248 183.860* 184.51 Profit of 45,758 on sale
2024-10-23SELL-31 182.980* 185.27 Profit of 5,744 on sale
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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