California State Teachers Retirement System (CalSTRS)
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California State Teachers Retirement System (CalSTRS)’s Spero Therapeutics SPRO Stock Holding History

California State Teachers Retirement System (CalSTRS)’s Portfolio SPRO Stock Details SPRO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2022
Q2 		– Sell
-10,256
Closed -$89K – 3288
2022
Q1 		$89K Sell
10,256
-2,482
-19% -$25.4K ﹤0.01% 2902
2021
Q4 		$204K Sell
12,738
-306
-2% -$4.86K ﹤0.01% 2782
2021
Q3 		$240K Sell
13,044
-20,402
-61% -$327K ﹤0.01% 2673
2021
Q2 		$467K Buy
33,446
+2,523
+8% +$35.3K ﹤0.01% 2678
2021
Q1 		$455K Hold
30,923
– – ﹤0.01% 2562
2020
Q4 		$600K Buy
30,923
+8,760
+40% +$137K ﹤0.01% 2328
2020
Q3 		$247K Buy
22,163
+1,283
+6% +$15.2K ﹤0.01% 2634
2020
Q2 		$283K Buy
20,880
+1,071
+5% +$12K ﹤0.01% 2535
2020
Q1 		$160K Buy
19,809
+2,812
+17% +$24.8K ﹤0.01% 2653
2019
Q4 		$163K Hold
16,997
– – ﹤0.01% 2849
2019
Q3 		$180K Buy
16,997
+1,222
+8% +$12.9K ﹤0.01% 2819
2019
Q2 		$182K Buy
15,775
+3,039
+24% +$36.6K ﹤0.01% 2883
2019
Q1 		$163K Hold
12,736
– – ﹤0.01% 2816
2018
Q4 		$78K Hold
12,736
– – ﹤0.01% 2953
2018
Q3 		$134K Buy
12,736
+2,530
+25% +$29.4K ﹤0.01% 2970
2018
Q2 		$150K Buy
10,206
+695
+7% +$8.89K ﹤0.01% 2958
2018
Q1 		$136K Hold
9,511
– – ﹤0.01% 2879
2017
Q4 		$112K Buy
+9,511
New +$117K ﹤0.01% 2920

Other funds holding SPRO

ACM
Aquilo Capital Management San Francisco, California $55.8M AUM 41.76% 1-Year Est. Return
BI
BVF Inc San Francisco, California $3.14B AUM 249.53% 1-Year Est. Return
AVAI
Atlas Venture Associates IX Boston, Massachusetts $11.8M AUM 58.35% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
AVLSA
Atlas Venture Life Science Advisors Cambridge, Massachusetts $790M AUM 223.66% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
AI
Alphabet Inc Mountain View, California $4.02B AUM 215.74% 1-Year Est. Return
RSCM
Rock Springs Capital Management Baltimore, Maryland $1.7B AUM 93.03% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

California State Teachers Retirement System (CalSTRS)'s SPRO Position: Q2 2022 in Review

California State Teachers Retirement System (CalSTRS) sold out of Spero Therapeutics (SPRO) in Q2 2022, closing a stake of 10,256 shares — an estimated $89K sold.

California State Teachers Retirement System (CalSTRS) first reported a position in SPRO in Q4 2017 and held it in 18 quarters. The position peaked at $600K in Q4 2020. 79 funds tracked by Wall St. Rank hold SPRO as of Q2 2022.

  • California State Teachers Retirement System (CalSTRS) reported no remaining Spero Therapeutics position as of Q2 2022 after selling out during the quarter.
  • California State Teachers Retirement System (CalSTRS) sold 10,256 Spero Therapeutics shares in Q2 2022, an estimated $89K.
  • California State Teachers Retirement System (CalSTRS) first reported a position in Spero Therapeutics in Q4 2017 and held it in 18 quarters.
  • California State Teachers Retirement System (CalSTRS)'s Spero Therapeutics position peaked at $600K in Q4 2020.
  • 79 funds tracked by Wall St. Rank held Spero Therapeutics as of Q2 2022.

Based on California State Teachers Retirement System (CalSTRS)'s 13F filing for Q2 2022, filed 15 Aug 2022.