WGS in the 13F filings

GeneDx Holdings Corp · CUSIP 81663L200

Sector · Health care services and research

Quarter

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024

Quarter end: 30 Jun 2026; the date the book describes
Filed: 2 Sep 2026; latest of these filings; the earliest 3 Aug 2026
Managers listing it: 22; at least, of 95 tracked, among listed positions
Comparable managers: 91; filed both Q1 2026 and Q2 2026; 1 listed it in both
Shares listed: 3,836,235; combined, among listed positions
Reported value: $263m; combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 16 buyers (opened or added shares) and 13 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -578,660.

Managers listing WGS in Q2 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2026, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

ActionShare of book at least

22 of 22 holders

				Action		Filing
ARK Investment Management LLC	1,610,189	$111m	0.72%	Added	+285,606	14 Aug 2026 (the filing on sec.gov)
Citadel Advisors LLC	865,462	$59m	under 0.1%	Added	+218,061	2 Sep 2026 (the filing on sec.gov)
Wellington Management Group LLP	347,927	$24m	under 0.1%	Added	+6,922	14 Aug 2026 (the filing on sec.gov)
Jane Street Group LLC	204,592	$14m	under 0.1%	New	new	14 Aug 2026 (the filing on sec.gov)
Millennium Management LLC	155,575	$11m	under 0.1%	Added	+5,669	14 Aug 2026 (the filing on sec.gov)
Susquehanna International Group LLP	142,315	$9.8m	under 0.1%	Added	+72,210	14 Aug 2026 (the filing on sec.gov)
Tudor Investment Corp	108,839	$7.5m	under 0.1%	Added	+75,299	14 Aug 2026 (the filing on sec.gov)
Point72 Asset Management LP	97,300	$6.7m	under 0.1%	Added	+21,505	14 Aug 2026 (the filing on sec.gov)
Walleye Capital LLC	67,900	$4.7m	under 0.1%	New	new	3 Aug 2026 (the filing on sec.gov)
D. E. Shaw & Co.	38,877	$2.7m	under 0.1%	Added	+19,974	14 Aug 2026 (the filing on sec.gov)
AQR Capital Management LLC	29,172	$2.0m	under 0.1%	Added	+10,782	14 Aug 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc	28,891	$2.0m	under 0.1%	Added	+5,865	14 Aug 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP	28,172	$1.9m	under 0.1%	Added	+22,506	14 Aug 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP	25,174	$1.7m	under 0.1%	New	new	14 Aug 2026 (the filing on sec.gov)
Invesco Ltd	19,996	$1.4m	under 0.1%	Trimmed	-520,233	14 Aug 2026 (the filing on sec.gov)
AllianceBernstein LP	20,050	$1.3m	under 0.1%	Held	0	14 Aug 2026 (the filing on sec.gov)
Two Sigma Investments LP	10,684	$733k	under 0.1%	Added	+237	14 Aug 2026 (the filing on sec.gov)
Schonfeld Strategic Advisors LLC	10,122	$695k	under 0.1%	Trimmed	-21,983	14 Aug 2026 (the filing on sec.gov)
MFS Investment Management	9,126	$626k	under 0.1%	Trimmed	-349,852	3 Aug 2026 (the filing on sec.gov)
Janus Henderson Group Ltd	8,348	$573k	under 0.1%	Held	0	14 Aug 2026 (the filing on sec.gov)
Fidelity (FMR LLC)	7,132	$490k	under 0.1%	Trimmed	-288,489	13 Aug 2026 (the filing on sec.gov)
Quantbot Technologies LP	392	$27k	under 0.1%	New	new	12 Aug 2026 (the filing on sec.gov)

Largest increases and reductions, by shares

Q1 2026 to Q2 2026, among managers that listed it in both quarters or opened it.

Increases

ARK Investment Management LLCexisting position · 1,610,189 shares now+285,606
Citadel Advisors LLCexisting position · 865,462 shares now+218,061
Jane Street Group LLCnew position · 204,592 shares now+204,592
Tudor Investment Corpexisting position · 108,839 shares now+75,299
Susquehanna International Group LLPexisting position · 142,315 shares now+72,210

Reductions

Invesco Ltdexisting position · 19,996 shares now-520,233
MFS Investment Managementexisting position · 9,126 shares now-349,852
Fidelity (FMR LLC)existing position · 7,132 shares now-288,489
Schonfeld Strategic Advisors LLCexisting position · 10,122 shares now-21,983

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (4)

Exited (9)

Renaissance Technologies LLCwas $9.9m
Capital Research Global Investorswas $9.7m
Polen Capital Management LLCwas $5.0m
Squarepoint Ops LLCwas $1.6m
Marshall Wace LLPwas $885k
Man Group PLCwas $520k
Winton Group Ltdwas $462k
Farallon Capital Management LLCwas $321k
Acadian Asset Management LLCwas $22k

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.

4 in Q4 2024 to 1 in Q2 2026

Tracked managers listing it, at least.

the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

WGS and UNH →WGS and ELV →WGS and CI →Choose a stock to compare with WGS →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own WGS, latest filings →Back to the 13F Explorer →

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Quarter	Holders	Reported value	Buyers	Sellers
Q4 2024	4	$40m	2	1
Q1 2025	2	$52m	2	0
Q2 2025	3	$54m	3	0
Q3 2025	3	$56m	1	2
Q4 2025	6	$116m	14	15
Q1 2026	4	$100m	17	14
Q2 2026	1	$111m	16	13