SCI
XBI icon

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
Q3 		$14.9M Sell
94,210
-100
-0.1% -$15.8K 0.84% 32
2026
Q2 		$14.9M Buy
94,310
+30
+0% +$4.06K 0.86% 31
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 		$15M 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

Citigroup
Citigroup New York $308B AUM 40.94% 1-Year Est. Return
Barclays
Barclays London, United Kingdom $500B AUM 36.84% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $765B AUM 28.39% 1-Year Est. Return
Jefferies Financial Group
Jefferies Financial Group New York $13.5B AUM 36.68% 1-Year Est. Return
LPL Financial
LPL Financial San Diego, California $468B AUM 17.69% 1-Year Est. Return
Bessemer Group
Bessemer Group Woodbridge, New Jersey $72.8B AUM 32.97% 1-Year Est. Return
Natixis
Natixis Paris, France $28B AUM 27.03% 1-Year Est. Return
Employees Retirement System of Texas
Employees Retirement System of Texas Austin, Texas $12.2B AUM 27.55% 1-Year Est. Return
Investure LLC
Investure LLC Charlottesville, Virginia $1.83B AUM 14.32% 1-Year Est. Return
STRS Ohio
STRS Ohio Columbus, Ohio $27.1B AUM 34.64% 1-Year Est. Return

S&CO Inc's XBI Position: Q3 2026 in Review

S&CO Inc reduced its State Street SPDR S&P Biotech ETF (XBI) stake by 0.11% in Q3 2026, selling an estimated $15.8K and leaving 94,210 shares worth $14.9M. The position accounts for 0.84% of the portfolio, ranked #32.

S&CO Inc first reported a position in XBI in Q2 2022 and has held it in 18 quarters since. The position peaked at $16.3M in Q3 2024. 604 funds tracked by Wall St. Rank hold XBI as of Q3 2026.

  • S&CO Inc held 94,210 shares of State Street SPDR S&P Biotech ETF worth $14.9M as of Q3 2026.
  • S&CO Inc sold 100 State Street SPDR S&P Biotech ETF shares in Q3 2026, an estimated $15.8K.
  • State Street SPDR S&P Biotech ETF made up 0.84% of S&CO Inc's portfolio in Q3 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 18 quarters since.
  • S&CO Inc's State Street SPDR S&P Biotech ETF position peaked at $16.3M in Q3 2024.
  • 604 funds tracked by Wall St. Rank held State Street SPDR S&P Biotech ETF as of Q3 2026.

Based on S&CO Inc's 13F filing for Q3 2026, filed 10 Nov 2026.