State of Wisconsin Investment Board
PHAT icon

State of Wisconsin Investment Board’s Phathom Pharmaceuticals PHAT Stock Holding History

State of Wisconsin Investment Board’s Portfolio PHAT Stock Details PHAT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$489K Buy
44,004
+28,719
+188% +$363K ﹤0.01% 2010
2025
Q4 		$254K Buy
+15,285
New +$218K ﹤0.01% 2212
2025
Q3 		– Sell
-90,781
Closed -$871K – 2485
2025
Q2 		$871K Sell
90,781
-8,995
-9% -$49.8K ﹤0.01% 1634
2025
Q1 		$626K Sell
99,776
-32,493
-25% -$197K ﹤0.01% 1664
2024
Q4 		$1.07M Buy
132,269
+50,499
+62% +$625K ﹤0.01% 1499
2024
Q3 		$1.48M Sell
81,770
-31,822
-28% -$445K ﹤0.01% 1432
2024
Q2 		$1.17M Buy
113,592
+54,406
+92% +$560K ﹤0.01% 1506
2024
Q1 		$629K Buy
59,186
+11,872
+25% +$101K ﹤0.01% 1625
2023
Q4 		$432K Sell
47,314
-36,442
-44% -$314K ﹤0.01% 1831
2023
Q3 		$869K Sell
83,756
-2,539
-3% -$34.8K ﹤0.01% 1448
2023
Q2 		$1.24M Sell
86,295
-8,872
-9% -$102K ﹤0.01% 1410
2023
Q1 		$679K Sell
95,167
-2,612
-3% -$22.9K ﹤0.01% 1700
2022
Q4 		$1.1M Buy
97,779
+11,091
+13% +$114K ﹤0.01% 1460
2022
Q3 		$961K Sell
86,688
-1,152
-1% -$11K ﹤0.01% 1561
2022
Q2 		$741K Buy
87,840
+43,540
+98% +$448K ﹤0.01% 1839
2022
Q1 		$603K Buy
44,300
+29,400
+197% +$475K ﹤0.01% 1750
2021
Q4 		$293K Hold
14,900
– – ﹤0.01% 1978
2021
Q3 		$478K Hold
14,900
– – ﹤0.01% 1709
2021
Q2 		$504K Hold
14,900
– – ﹤0.01% 1687
2021
Q1 		$560K Hold
14,900
– – ﹤0.01% 1563
2020
Q4 		$495K Sell
14,900
-1,800
-11% -$72.9K ﹤0.01% 1543
2020
Q3 		$612K Hold
16,700
– – ﹤0.01% 1411
2020
Q2 		$550K Hold
16,700
– – ﹤0.01% 1401
2020
Q1 		$431K Buy
+16,700
New +$558K ﹤0.01% 1383

Other funds holding PHAT

FLSM
Frazier Life Sciences Management Palo Alto, California $3.89B AUM 201.1% 1-Year Est. Return
MVM
Medicxi Ventures Management St. Helier, Jersey $982M AUM 210.17% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
CG
Carlyle Group Washington, District of Columbia $10.6B AUM 11.25% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
NMC
NEA Management Company Timonium, Maryland $1.76B AUM 223.33% 1-Year Est. Return
6CM
683 Capital Management New York $1.92B AUM 85.52% 1-Year Est. Return
Ensign Peak Advisors
Ensign Peak Advisors Salt Lake City, Utah $53.7B AUM 29.47% 1-Year Est. Return

State of Wisconsin Investment Board's PHAT Position: Q1 2026 in Review

State of Wisconsin Investment Board increased its Phathom Pharmaceuticals (PHAT) stake by 188% in Q1 2026, buying an estimated $363K and bringing the position to 44,004 shares worth $489K. The position accounts for ﹤0.01% of the portfolio, ranked #2010.

State of Wisconsin Investment Board first reported a position in PHAT in Q1 2020 and has held it in 24 quarters since. The position peaked at $1.48M in Q3 2024. 174 funds tracked by Wall St. Rank hold PHAT as of Q1 2026.

  • State of Wisconsin Investment Board held 44,004 shares of Phathom Pharmaceuticals worth $489K as of Q1 2026.
  • State of Wisconsin Investment Board bought 28,719 Phathom Pharmaceuticals shares in Q1 2026, an estimated $363K.
  • Phathom Pharmaceuticals made up ﹤0.01% of State of Wisconsin Investment Board's portfolio in Q1 2026, its #2010 holding.
  • State of Wisconsin Investment Board first reported a position in Phathom Pharmaceuticals in Q1 2020 and has held it in 24 quarters since.
  • State of Wisconsin Investment Board's Phathom Pharmaceuticals position peaked at $1.48M in Q3 2024.
  • 174 funds tracked by Wall St. Rank held Phathom Pharmaceuticals as of Q1 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q1 2026, filed 15 May 2026.