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BRIDGEWAY CAPITAL MANAGEMENT, LLC

Position in ATRA — Atara Biotherapeutics, Inc.

CIK 1107261 HOUSTON, TX

Position in ATRA

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$160,720
+$6,092 QoQ
Shares Held
14,000
-57.2% QoQ
Ownership
0.139%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#17
of 36 holders
Holding Since
Jun 2024
9 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in ATRA Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Jun 30, 2026

BRIDGEWAY CAPITAL MANAGEMENT, LLC holds $87,985,615 across 108 Biotechnology names. ATRA ranks #87 (0.2% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in ATRA

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9 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $160,720 14,000
2026-03-31 $154,628 32,691
2025-12-31 $591,380 32,691
2025-09-30 $200,620 14,000
2025-06-30 $108,080 14,000
2025-03-31 $83,160 14,000
2024-12-31 $186,340 14,000
2024-09-30 $113,820 14,000
2024-06-30 $119,000 14,000