SPDR Series Trust - State Street SPDR S&P Biotech ETF
US ˙ ARCA ˙ US78464A8707

SecurityXBI / SPDR Series Trust - State Street SPDR S&P Biotech ETF
InstitutionAsset Management Group, Inc.
Latest Disclosed Ownership20,433 shares
Latest Disclosed Value $ 2,609,916
Asset Management Group, Inc. reports 0.99% decrease in ownership of XBI / SPDR Series Trust - State Street SPDR S&P Biotech ETF

On May 15, 2026 - Asset Management Group, Inc. filed a 13F-HR form disclosing ownership of 20,433 shares of SPDR Series Trust - State Street SPDR S&P Biotech ETF (US:XBI) valued at $2,609,907 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 20,637 shares of SPDR Series Trust - State Street SPDR S&P Biotech ETF. This represents a change in shares of -0.99% during the quarter. The current value of the position is $2,629,114 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F SPDR SERIES TRUST STATE STREET SPD 78464A870 20,433 -204 -0.99 2,610 3.70 0.4205
2026-02-17 2025-12-31 13F SPDR SERIES TRUST STATE STREET SPD 78464A870 20,637 -3,020 -12.77 2,516 6.16 0.4070
2025-11-14 2025-09-30 13F SPDR SERIES TRUST S&P BIOTECH 78464A870 23,657 5 0.02 2,370 20.86 0.3878
2025-08-12 2025-06-30 13F SPDR SERIES TRUST S&P BIOTECH 78464A870 23,652 2 0.01 1,961 2.30 0.3419
2025-05-14 2025-03-31 13F SPDR SER TR S&P BIOTECH 78464A870 23,650 2 0.01 1,918 -9.96 0.3544
2025-02-14 2024-12-31 13F SPDR SER TR S&P BIOTECH 78464A870 23,648 -498 -2.06 2,130 -10.73 0.3787
2024-11-12 2024-09-30 13F SPDR SER TR S&P BIOTECH 78464A870 24,146 3 0.01 2,386 6.57 0.4177
2024-08-13 2024-06-30 13F SPDR SER TR S&P BIOTECH 78464A870 24,143 27 0.11 2,238 -2.19 0.4169
2024-05-15 2024-03-31 13F SPDR SER TR S&P BIOTECH 78464A870 24,116 8 0.03 2,288 6.32 0.4296
2024-02-14 2023-12-31 13F SPDR SER TR S&P BIOTECH 78464A870 24,108 3 0.01 2,153 22.27 0.4313
2023-11-14 2023-09-30 13F SPDR SER TR S&P BIOTECH 78464A870 24,105 0 0.00 1,760 -12.22 0.3872
2023-08-14 2023-06-30 13F SPDR SER TR S&P BIOTECH 78464A870 24,105 1 0.00 2,005 9.20 0.4257
2023-05-15 2023-03-31 13F SPDR SER TR S&P BIOTECH 78464A870 24,104 0 0.00 1,837 -8.20 0.4096
2023-02-14 2022-12-31 13F SPDR SER TR S&P BIOTECH 78464A870 24,104 0 0.00 2,001 4.60 0.4701
2022-11-14 2022-09-30 13F SPDR SER TR S&P BIOTECH 78464A870 24,104 -73 -0.30 1,912 6.46 0.4775
2022-08-15 2022-06-30 13F SPDR SER TR S&P BIOTECH 78464A870 24,177 0 0.00 1,796 -17.35 0.4309
2022-05-16 2022-03-31 13F SPDR SER TR S&P BIOTECH 78464A870 24,177 0 0.00 2,173 -19.73 0.4546
2022-02-14 2021-12-31 13F SPDR SER TR S&P BIOTECH 78464A870 24,177 -202 -0.83 2,707 -11.68 0.5321
2021-11-15 2021-09-30 13F SPDR SER TR S&P BIOTECH 78464A870 24,379 -392 -1.58 3,065 -8.62 0.6291
2021-08-16 2021-06-30 13F Spdr S&P Biotech Etf ET 78464A870 24,771 -1,286 -4.94 3,354 -5.12 0.6937
2021-05-17 2021-03-31 13F Spdr S&P Biotech Etf ET 78464A870 26,057 -201 -0.77 3,535 -4.38 0.7653
2021-02-16 2020-12-31 13F Spdr S&P Biotech Etf ET 78464A870 26,258 31 0.12 3,697 26.48 0.8989
2020-11-16 2020-09-30 13F Spdr S&P Biotech Etf ET 78464A870 26,227 -288 -1.09 2,923 -1.52 0.8542
2020-08-14 2020-06-30 13F Spdr S&P Biotech Etf ET 78464A870 26,515 4 0.02 2,968 44.57 0.9378
2020-05-15 2020-03-31 13F Spdr S&P Biotech Etf ET 78464A870 26,511 0 0.00 2,053 -18.56 0.7744
2020-02-14 2019-12-31 13F Spdr S&P Biotech Etf ET 78464A870 26,511 -150 -0.56 2,521 24.00 0.7627
2019-11-14 2019-09-30 13F Spdr S&P Biotech Etf ET 78464A870 26,661 1 0.00 2,033 -13.05 0.6971
2019-08-14 2019-06-30 13F Spdr S&P Biotech Etf ET 78464A870 26,660 -136 -0.51 2,338 -3.63 0.8302
2019-05-15 2019-03-31 13F Spdr S&P Biotech Etf ET 78464A870 26,796 0 0.00 2,426 26.16 0.8799
2019-02-14 2018-12-31 13F Spdr S&P Biotech Etf ET 78464A870 26,796 4 0.01 1,923 -25.15 0.7897
2018-11-13 2018-09-30 13F Spdr S&P Biotech Etf ET 78464A870 26,792 20 0.07 2,569 0.82 0.8697
2018-08-14 2018-06-30 13F Spdr S&P Biotech Etf ET 78464A870 26,772 -297 -1.10 2,548 7.28 0.8897
2018-05-15 2018-03-31 13F Spdr S&P Biotech Etf ET 78464A870 27,069 17 0.06 2,375 3.44 0.8508
2018-02-14 2017-12-31 13F Spdr S&P Biotech Etf ET 78464A870 27,052 -1,286 -4.54 2,296 -6.40 0.8269
2017-11-14 2017-09-30 13F Spdr S&P Biotech Etf ET 78464A870 28,338 13 0.05 2,453 12.21 0.9197
2017-08-14 2017-06-30 13F Spdr S&P Biotech Etf ET 78464A870 28,325 38 0.13 2,186 11.47 0.8451
2017-05-15 2017-03-31 13F Spdr S&P Biotech Etf ET 78464A870 28,287 -326 -1.14 1,961 15.76 0.7761
2017-02-14 2016-12-31 13F Spdr S&P Biotech Etf ET 78464A870 28,613 8 0.03 1,694 -10.65 0.6955
2016-11-14 2016-09-30 13F Spdr S&P Biotech Etf ET 78464A870 28,605 13 0.05 1,896 22.64 0.7881
2016-08-15 2016-06-30 13F Spdr S&P Biotech Etf ET 78464A870 28,592 25 0.09 1,546 4.74 0.6705
2016-05-16 2016-03-31 13F Spdr S&P Biotech Etf ET 78464A870 28,567 31 0.11 1,476 -26.31 0.6545
2016-02-16 2015-12-31 13F Spdr S&P Biotech Etf ET 78464A870 28,536 59 0.21 2,003 12.97 0.9091
2015-11-16 2015-09-30 13F Spdr S&P Biotech Etf ET 78464A870 28,477 18,988 200.11 1,773 -25.91 0.8307
2015-08-14 2015-06-30 13F Spdr S&P Biotech Etf ET 78464A870 9,489 17 0.18 2,393 12.03 1.0789
2015-05-15 2015-03-31 13F Spdr S&P Biotech Etf ET 78464A870 9,472 166 1.78 2,136 23.11 0.9905
2015-02-17 2014-12-31 13F Spdr S&P Biotech Etf ET 78464A870 9,306 23 0.25 1,735 19.82 0.8736
2014-11-14 2014-09-30 13F Spdr S&P Biotech Etf ET 78464A870 9,283 66 0.72 1,448 2.04 0.7731
2014-08-14 2014-06-30 13F Spdr S&P Biotech Etf ET 78464A870 9,217 19 0.21 1,419 8.32 0.7660
2014-05-15 2014-03-31 13F Spdr S&P Biotech Etf ET 78464A870 9,198 3 0.03 1,310 9.44 0.7526
2014-02-14 2013-12-31 13F Spdr S&P Biotech Etf ET 78464A870 9,195 6 0.07 1,197 0.84 0.7292
2013-11-14 2013-09-30 13F Spdr S&P Biotech Etf ET 78464A870 9,189 4 0.04 1,187 23.90 0.7730
2013-08-14 2013-06-30 13F Spdr S&P Biotech Etf ET 78464A870 9,185 9,185 958 0.6583
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.