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S&CO Inc’s State Street SPDR S&P Biotech ETF XBI Stock Holding History

S&CO Inc’s Portfolio XBI Stock Details XBI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$12M Sell
94,280
-7,947
-8% -$992K 0.75% 32
2025
Q4 		$12.5M Sell
102,227
-2,870
-3% -$329K 0.77% 34
2025
Q3 		$10.5M Buy
105,097
+260
+0.2% +$23.4K 0.64% 39
2025
Q2 		$8.69M Buy
104,837
+264
+0.3% +$21.1K 0.56% 46
2025
Q1 		$8.48M Sell
104,573
-34,802
-25% -$3.11M 0.57% 44
2024
Q4 		$12.6M Sell
139,375
-25,500
-15% -$2.47M 0.85% 31
2024
Q3 		$16.3M Buy
164,875
+1,400
+0.9% +$138K 1.06% 27
2024
Q2 		$15.2M Buy
163,475
+525
+0.3% +$47.1K 1.06% 27
2024
Q1 		$15.5M Sell
162,950
-4,492
-3% -$417K 1.09% 25
2023
Q4 		$14.9M Sell
167,442
-1,575
-0.9% -$117K 1.15% 25
2023
Q3 		$12.3M Buy
169,017
+35
+0% +$2.8K 1.01% 29
2023
Q2 		$14.1M Buy
168,982
+148,110
+710% +$12.4M 1.13% 27
2023
Q1 		$1.59M Buy
20,872
+16,415
+368% +$1.36M 0.14% 95
2022
Q4 		$369K Buy
4,457
+600
+16% +$48.6K 0.03% 145
2022
Q3 		$305K Buy
3,857
+30
+0.8% +$2.53K 0.03% 157
2022
Q2 		$284K Buy
+3,827
New +$287K 0.02% 162

Other funds holding XBI

BNP Paribas Financial Markets
BNP Paribas Financial Markets Paris, France $206B AUM 31.61% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Citigroup
Citigroup New York $235B AUM 32.99% 1-Year Est. Return
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund Toronto, Ontario, Canada $62.2B AUM 31.35% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Barclays
Barclays London, United Kingdom $416B AUM 33.63% 1-Year Est. Return
Wells Fargo
Wells Fargo San Francisco, California $530B AUM 22.01% 1-Year Est. Return

S&CO Inc's XBI Position: Q1 2026 in Review

S&CO Inc reduced its State Street SPDR S&P Biotech ETF (XBI) stake by 7.8% in Q1 2026, selling an estimated $992K and leaving 94,280 shares worth $12M. The position accounts for 0.75% of the portfolio, ranked #32.

S&CO Inc first reported a position in XBI in Q2 2022 and has held it in 16 quarters since. The position peaked at $16.3M in Q3 2024. 813 funds tracked by Wall St. Rank hold XBI as of Q1 2026.

  • S&CO Inc held 94,280 shares of State Street SPDR S&P Biotech ETF worth $12M as of Q1 2026.
  • S&CO Inc sold 7,947 State Street SPDR S&P Biotech ETF shares in Q1 2026, an estimated $992K.
  • State Street SPDR S&P Biotech ETF made up 0.75% of S&CO Inc's portfolio in Q1 2026, its #32 holding.
  • S&CO Inc first reported a position in State Street SPDR S&P Biotech ETF in Q2 2022 and has held it in 16 quarters since.
  • S&CO Inc's State Street SPDR S&P Biotech ETF position peaked at $16.3M in Q3 2024.
  • 813 funds tracked by Wall St. Rank held State Street SPDR S&P Biotech ETF as of Q1 2026.

Based on S&CO Inc's 13F filing for Q1 2026, filed 7 May 2026.