Vanguard Capital Management
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Vanguard Capital Management’s Rallybio RLYB Stock Holding History

Vanguard Capital Management’s Portfolio RLYB Stock Details RLYB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$2.76M Buy
172,497
+60,457
+54% +$778K ﹤0.01% 3314
2026
Q1 		$1M Buy
+112,040
New +$766K ﹤0.01% 3549

Other funds holding RLYB

ACM
ADAR1 Capital Management Austin, Texas $2.19B AUM 374.99% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.91% 1-Year Est. Return
PBPIA
Pivotal bioVenture Partners Investment Advisor San Francisco, California $308M AUM 120.89% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
NCM
Nantahala Capital Management New Canaan, Connecticut $3B AUM 119.43% 1-Year Est. Return
RC
Rangeley Capital New Canaan, Connecticut $109M AUM 97.16% 1-Year Est. Return
Mariner
Mariner Overland Park, Kansas $95.2B AUM 32.92% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management's RLYB Position: Q2 2026 in Review

Vanguard Capital Management increased its Rallybio (RLYB) stake by 54% in Q2 2026, buying an estimated $778K and bringing the position to 172,497 shares worth $2.76M. The position accounts for ﹤0.01% of the portfolio, ranked #3314.

Vanguard Capital Management first reported a position in RLYB in Q1 2026 and has held it in 2 quarters since. 34 funds tracked by Wall St. Rank hold RLYB as of Q2 2026.

  • Vanguard Capital Management held 172,497 shares of Rallybio worth $2.76M as of Q2 2026.
  • Vanguard Capital Management bought 60,457 Rallybio shares in Q2 2026, an estimated $778K.
  • Rallybio made up ﹤0.01% of Vanguard Capital Management's portfolio in Q2 2026, its #3314 holding.
  • Vanguard Capital Management first reported a position in Rallybio in Q1 2026 and has held it in 2 quarters since.
  • 34 funds tracked by Wall St. Rank held Rallybio as of Q2 2026.

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