Vanguard Portfolio Management
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Vanguard Portfolio Management’s Phathom Pharmaceuticals PHAT Stock Holding History

Vanguard Portfolio Management’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
Q2 		$8.64M Buy
796,631
+130,602
+20% +$1.49M ﹤0.01% 2243
2026
Q1 		$7.4M Buy
+666,029
New +$8.41M ﹤0.01% 2210

Other funds holding PHAT

FLSM
Frazier Life Sciences Management Palo Alto, California $4.59B AUM 237.58% 1-Year Est. Return
MVM
Medicxi Ventures Management St. Helier, Jersey $177M AUM 212.06% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
CG
Carlyle Group Washington, District of Columbia $10B AUM 10.61% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
GKIM
GW&K Investment Management Boston, Massachusetts $12.8B AUM 48.82% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $462B AUM 39.16% 1-Year Est. Return
NMC
NEA Management Company Timonium, Maryland $1.59B AUM 234.06% 1-Year Est. Return

Vanguard Portfolio Management's PHAT Position: Q2 2026 in Review

Vanguard Portfolio Management increased its Phathom Pharmaceuticals (PHAT) stake by 20% in Q2 2026, buying an estimated $1.49M and bringing the position to 796,631 shares worth $8.64M. The position accounts for ﹤0.01% of the portfolio, ranked #2243.

Vanguard Portfolio Management first reported a position in PHAT in Q1 2026 and has held it in 2 quarters since. 161 funds tracked by Wall St. Rank hold PHAT as of Q2 2026.

  • Vanguard Portfolio Management held 796,631 shares of Phathom Pharmaceuticals worth $8.64M as of Q2 2026.
  • Vanguard Portfolio Management bought 130,602 Phathom Pharmaceuticals shares in Q2 2026, an estimated $1.49M.
  • Phathom Pharmaceuticals made up ﹤0.01% of Vanguard Portfolio Management's portfolio in Q2 2026, its #2243 holding.
  • Vanguard Portfolio Management first reported a position in Phathom Pharmaceuticals in Q1 2026 and has held it in 2 quarters since.
  • 161 funds tracked by Wall St. Rank held Phathom Pharmaceuticals as of Q2 2026.

Based on Vanguard Portfolio Management's 13F filing for Q2 2026, filed 13 Aug 2026.