Form 13-F position report

GENEDX HOLDINGS CORP

Reported by ALLIANCEBERNSTEIN L P

Company profile Manager portfolio Source filing
WGS CUSIP 81663L200 Manager CIK 0001109448
Latest reported change

Reported 253,454 shares, down 106,609 (29.6%) from the prior quarter.

Reported value -15.0%; share count -29.6% vs. the prior quarter.

Reduced
% of reported 13F value 0.01% This manager · Q4 2025
Shares 253,454 Quarter-end amount reported
Reported value $32,964,227 Fair value at quarter end
Consecutive quarters held 7 Through Q4 2025

Reported position value by quarter

Reported position value by quarter

Each bar is a Form 13-F quarter-end snapshot. It does not show trades made within the quarter.

Manager history

Quarterly position history

How this manager's reported quarter-end position changed over time.

9 quarters
Quarter Activity Shares Change % of reported 13F Reported value Filed
Q2 2026 Unchanged 20,050 0 (0.0%) < 0.01% $1,287,611 2026-08-14
Q1 2026 Reduced 20,050 -233,404 (-92.1%) < 0.01% $2,607,703 2026-05-15
Q4 2025 Reduced 253,454 -106,609 (-29.6%) 0.01% $32,964,227 2026-02-17
Q3 2025 Reduced 360,063 -26,695 (-6.9%) 0.01% $38,793,188 2025-11-14
Q2 2025 Reduced 386,758 -50,142 (-11.5%) 0.01% $35,701,631 2025-08-14
Q1 2025 Added 436,900 +423,050 (3054.5%) 0.01% $38,694,049 2025-05-15
Q4 2024 Added 13,850 +5,900 (74.2%) < 0.01% $1,064,511 2025-02-12
Q3 2024 Added 7,950 +70 (0.9%) < 0.01% $337,398 2024-11-14
Q2 2024 New 7,880 +7,880 (0.0%) < 0.01% $205,983 2024-08-14
Institutional context

Who else reported the position

329 managers reported GENEDX HOLDINGS CORP for Q4 2025.

Manager Activity Shares Change % of reported 13F Reported value Tenure
Corvex Management LP Unchanged 3,058,629 0 12.16% $397,805,288 11 qtrs
Casdin Capital LLC Unchanged 3,007,164 0 24.29% $391,111,750 11 qtrs
BlackRock Inc Added 1,560,094 +31,019 < 0.01% $202,905,825 6 qtrs
The Goldman Sachs Group Inc Added 1,220,502 +52,322 0.02% $158,738,491 11 qtrs
VANGUARD GROUP INC Added 1,189,069 +18,647 < 0.01% $154,650,315 11 qtrs
FRANKLIN RESOURCES INC Added 1,092,988 +411,607 0.03% $142,154,023 6 qtrs
WESTFIELD CAPITAL MANAGEMENT CO LP Added 1,018,261 +474,167 0.55% $132,435,026 4 qtrs
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT LLC Added 920,587 +97,020 2.49% $119,731,545 6 qtrs
ORACLE INVESTMENT MANAGEMENT INC Reduced 884,654 -5,300 68.51% $115,058,099 11 qtrs
FMR LLC Added 832,738 +329,429 < 0.01% $108,305,906 11 qtrs
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Filing details and methodology As reported
Report period
December 31, 2025
Filed
February 17, 2026
Filing type
13F-HR
Position type
COM CL A

Voting authority reported

Sole
244,620
Shared
0
None
8,834

“None” means the manager reported no voting authority for those shares on non-routine matters. It does not disclose why and is not evidence of securities lending.

Form 13-F is a delayed quarter-end snapshot of disclosed long Section 13(f) securities. It can be filed up to 45 days after quarter end, excludes short positions and most non-U.S. securities, and does not reveal intra-quarter trading. For options, reported shares and value describe the underlying-share exposure; strike, expiry, premium, and written positions are not disclosed.