Optiver Holding
PHAT icon

Optiver Holding’s Phathom Pharmaceuticals PHAT Stock Holding History

Optiver Holding’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 		$976 Sell
90
-192
-68% -$2.19K ﹤0.01% 2498
2026
Q1 		$3.13K Buy
282
+84
+42% +$1.06K ﹤0.01% 1642
2025
Q4 		$3.29K Sell
198
-386
-66% -$5.51K ﹤0.01% 1693
2025
Q3 		$6.87K Buy
+584
New +$6.03K ﹤0.01% 1524

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

Optiver Holding's PHAT Position: Q2 2026 in Review

Optiver Holding reduced its Phathom Pharmaceuticals (PHAT) stake by 68% in Q2 2026, selling an estimated $2.19K and leaving 90 shares worth $976. The position accounts for ﹤0.01% of the portfolio, ranked #2498.

Optiver Holding first reported a position in PHAT in Q3 2025 and has held it in 4 quarters since. The position peaked at $6.87K in Q3 2025. 161 funds tracked by Wall St. Rank hold PHAT as of Q2 2026.

  • Optiver Holding held 90 shares of Phathom Pharmaceuticals worth $976 as of Q2 2026.
  • Optiver Holding sold 192 Phathom Pharmaceuticals shares in Q2 2026, an estimated $2.19K.
  • Phathom Pharmaceuticals made up ﹤0.01% of Optiver Holding's portfolio in Q2 2026, its #2498 holding.
  • Optiver Holding first reported a position in Phathom Pharmaceuticals in Q3 2025 and has held it in 4 quarters since.
  • Optiver Holding's Phathom Pharmaceuticals position peaked at $6.87K in Q3 2025.
  • 161 funds tracked by Wall St. Rank held Phathom Pharmaceuticals as of Q2 2026.

Based on Optiver Holding's 13F filing for Q2 2026, filed 12 Aug 2026.