Teacher Retirement System of Texas
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Teacher Retirement System of Texas’s Magnite MGNI Stock Holding History

Teacher Retirement System of Texas’s Portfolio MGNI Stock Details MGNI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-18,391
Closed -$401K – 1854
2025
Q3 		$401K Sell
18,391
-3,212
-15% -$75.8K ﹤0.01% 1616
2025
Q2 		$521K Buy
21,603
+1,164
+6% +$17.1K ﹤0.01% 1528
2025
Q1 		$233K Buy
+20,439
New +$326K ﹤0.01% 1842
2023
Q3 		– Sell
-10,212
Closed -$139K – 1951
2023
Q2 		$139K Sell
10,212
-3,140
-24% -$34.9K ﹤0.01% 1830
2023
Q1 		$124K Buy
13,352
+611
+5% +$6.51K ﹤0.01% 1949
2022
Q4 		$135K Sell
12,741
-4,213
-25% -$38.5K ﹤0.01% 1920
2022
Q3 		$111K Sell
16,954
-2,275
-12% -$18.3K ﹤0.01% 2038
2022
Q2 		$171K Sell
19,229
-6,741
-26% -$72.2K ﹤0.01% 1729
2022
Q1 		$343K Buy
25,970
+1,833
+8% +$24.7K ﹤0.01% 1632
2021
Q4 		$422K Buy
24,137
+4,775
+25% +$108K ﹤0.01% 1584
2021
Q3 		$542K Buy
19,362
+6,133
+46% +$185K ﹤0.01% 1288
2021
Q2 		$448K Buy
13,229
+2,083
+19% +$70.6K ﹤0.01% 1320
2021
Q1 		$464K Buy
11,146
+2,194
+25% +$95K ﹤0.01% 1153
2020
Q4 		$275K Buy
+8,952
New +$135K ﹤0.01% 1251
2016
Q3 		– Sell
-4,352
Closed -$59K – 1759
2016
Q2 		$59K Buy
4,352
+806
+23% +$13K ﹤0.01% 2135
2016
Q1 		$65K Buy
3,546
+933
+36% +$14.3K ﹤0.01% 2017
2015
Q4 		$43K Buy
2,613
+4
+0.2% +$62 ﹤0.01% 2141
2015
Q3 		$38K Buy
2,609
+1,866
+251% +$28.5K ﹤0.01% 2265
2015
Q2 		$11K Buy
+743
New +$12.8K ﹤0.01% 2393

Other funds holding MGNI

Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return
Boston Partners
Boston Partners Boston, Massachusetts $113B AUM 38.87% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
N
Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Teacher Retirement System of Texas's MGNI Position: Q4 2025 in Review

Teacher Retirement System of Texas sold out of Magnite (MGNI) in Q4 2025, closing a stake of 18,391 shares — an estimated $401K sold.

Teacher Retirement System of Texas first reported a position in MGNI in Q2 2015 and held it in 19 quarters. The position peaked at $542K in Q3 2021. 304 funds tracked by Wall St. Rank hold MGNI as of Q4 2025.

  • Teacher Retirement System of Texas reported no remaining Magnite position as of Q4 2025 after selling out during the quarter.
  • Teacher Retirement System of Texas sold 18,391 Magnite shares in Q4 2025, an estimated $401K.
  • Teacher Retirement System of Texas first reported a position in Magnite in Q2 2015 and held it in 19 quarters.
  • Teacher Retirement System of Texas's Magnite position peaked at $542K in Q3 2021.
  • 304 funds tracked by Wall St. Rank held Magnite as of Q4 2025.

Based on Teacher Retirement System of Texas's 13F filing for Q4 2025, filed 28 Jan 2026.