Vault-13

EXAGEN INC XGN

COM · Common Stock · CUSIP 30068X103

Clinical laboratory company

57 institutional holders -4 vs Q1 2026
8,254,9358.3m shares reported held*
34.1% of all shares outstanding*
$38.4mreported value*
8 new 15 added 24 reduced 11 sold out net sold ≈ $6.6m (-1.4m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 24.2m as of 2026-07-30, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $4.65. Options: 2 managers hold calls ($101.8k notional), 0 hold puts (—).

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

050100Q3 22: 38Q4 22: 32Q1 23: 29Q2 23: 29Q3 23: 30Q4 23: 31Q1 24: 32Q2 24: 34Q3 24: 34Q4 24: 42Q1 25: 39Q2 25: 54Q3 25: 62Q4 25: 80Q1 26: 61Q2 26: 5757Q3 22Q3 23Q3 24Q3 25Q2 26
Numbers
QuarterHolders
Q3 202238
Q4 202232
Q1 202329
Q2 202329
Q3 202330
Q4 202331
Q1 202432
Q2 202434
Q3 202434
Q4 202442
Q1 202539
Q2 202554
Q3 202562
Q4 202580
Q1 202661
Q2 202657

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
1000100Q3 24: 10 bought or addedQ3 24: 11 cut or sold outQ4 24: 16 bought or addedQ4 24: 16 cut or sold outQ4 24Q1 25: 14 bought or addedQ1 25: 17 cut or sold outQ2 25: 39 bought or addedQ2 25: 12 cut or sold outQ2 25Q3 25: 43 bought or addedQ3 25: 23 cut or sold outQ4 25: 57 bought or addedQ4 25: 24 cut or sold outQ4 25Q1 26: 30 bought or addedQ1 26: 48 cut or sold outQ2 26: 23 bought or addedQ2 26: 35 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q3 20241011
Q4 20241616
Q1 20251417
Q2 20253912
Q3 20254323
Q4 20255724
Q1 20263048
Q2 20262335

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$200k$400k$600k$800kQ3 25 calls: $623.6kQ3 25 puts: $29.8kQ3 25P/C 0.05Q4 25 calls: $431.7kQ4 25 puts: $0Q4 25P/C 0.00Q1 26 calls: $63.3kQ1 26 puts: $300Q1 26P/C 0.00Q2 26 calls: $101.8kQ2 26 puts: $0Q2 26P/C 0.00
Numbers
QuarterCallsPutsP/C
Q3 2025$623.6k$29.8k0.05
Q4 2025$431.7k$00.00
Q1 2026$63.3k$3000.00
Q2 2026$101.8k$00.00

Biggest buyers

First Eagle Investment Management, LLC Added +488,688+488.7k
FLPUTNAM INVESTMENT MANAGEMENT CO New +288,810+288.8k
MARSHALL WACE, LLP Added +279,414+279.4k
FourWorld Capital Management LLC Added +156,578+156.6k
Mink Brook Asset Management LLC Added +106,917+106.9k
NANO CAP NEW MILLENNIUM GROWTH FUND L P Added +90,000+90.0k
JANE STREET GROUP, LLC Added +85,767+85.8k
GWN SECURITIES INC. New +78,034+78.0k
Man Group plc Added +37,582+37.6k
Invesco Ltd. New +21,133+21.1k

Biggest sellers

Balyasny Asset Management L.P. Sold out -796,632-796.6k
ACADIAN ASSET MANAGEMENT LLC Reduced -379,030-379.0k
CITADEL ADVISORS LLC Reduced -216,722-216.7k
RTW INVESTMENTS, LP Reduced -200,231-200.2k
Squarepoint Ops LLC Reduced -179,832-179.8k
RENAISSANCE TECHNOLOGIES LLC Reduced -163,672-163.7k
Massar Capital Management, LP Sold out -140,000-140.0k
SEI INVESTMENTS CO Reduced -135,235-135.2k
XTX Topco Ltd Reduced -130,337-130.3k
TWO SIGMA INVESTMENTS, LP Reduced -97,829-97.8k

Biggest calls

IMC-Chicago, LLC New $83.2k17.9k shares
SIMPLEX TRADING, LLC Reduced $18.6k4.0k shares

Biggest puts

None

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
Chernett Jorey 13G · passive investor +4.5 pts · filed 2026-05-20 9.9% +4.5 pts 2.4m≈ $11.2m 2026-05-20
NMSIC Co-Investment Fund, L.P. 13G · exempt (held before listing) -3.8 pts · filed 2026-02-11 6.0% -3.8 pts 1.4m≈ $6.4m 2026-02-11
Parian Ultreia LP 13G · exempt (held before listing) new · filed 2026-05-27 5.3% new 1.3m≈ $6.0m 2026-05-27

Fell to 5% or below in the last year: RTW INVESTMENTS, LP (4.9%, 2026-02-17)

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
202Q4 24: 2 buyingQ4 24: 0 sellingQ1 25: 0 buyingQ1 25: 0 sellingQ1 25Q2 25: 0 buyingQ2 25: 0 sellingQ3 25: 0 buyingQ3 25: 1 sellingQ3 25Q4 25: 0 buyingQ4 25: 1 sellingQ1 26: 0 buyingQ1 26: 2 sellingQ1 26Q2 26: 0 buyingQ2 26: 0 sellingQ3 26: 0 buyingQ3 26: 1 sellingQ3 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20242$134.7k0——
Q1 20250—0——
Q2 20250—0——
Q3 20250—1$200.4k—
Q4 20250—1$375.7k—
Q1 20260—2$103.8k—
Q2 20260—0——
Q3 20260—1$148.8k—
DateInsiderTradeSharesPrice ValueTheir holding
2026-09-01 Black Jeffrey G. Chief Financial Officer Sold 20,614 $7.22 $148.8k20.6k shares -6%

Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 WEXFORD CAPITAL LP 0.51% of their portfolio WEST PALM BEACH, FL 792,855792.9k $3.7m $3.7m 0.51% Unchanged
2 NANO CAP NEW MILLENNIUM GROWTH FUND L P 2.41% of their portfolio STATEN ISLAND, NY 675,000675.0k $3.1m $3.1m 2.41% Added +90.0k +90,000
3 First Eagle Investment Management, LLC 0.00% of their portfolio NEW YORK, NY 613,930613.9k $2.9m $2.9m 0.00% Added +488.7k +488,688
4 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 612,832612.8k $2.8m $2.8m 0.00% Reduced -65.8k -65,820
5 FourWorld Capital Management LLC 3.54% of their portfolio NEW YORK, NY 596,528596.5k $2.8m $2.8m 3.54% Added +156.6k +156,578
6 SILVERCREST ASSET MANAGEMENT GROUP LLC 0.02% of their portfolio NEW YORK, NY 514,761514.8k $2.4m $2.4m 0.02% Reduced -23.1k -23,109
7 KENNEDY CAPITAL MANAGEMENT LLC 0.04% of their portfolio ST LOUIS, MO 485,048485.0k $2.3m $2.3m 0.04% Reduced -8.6k -8,612
8 Mink Brook Asset Management LLC 0.98% of their portfolio West Palm Beach, FL 475,944475.9k $2.2m $2.2m 0.98% Added +106.9k +106,917
9 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 322,502322.5k $1.5m $1.5m 0.00% Added +85.8k +85,767
10 ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio Boston, MA 310,084310.1k $1.4m $1.4m 0.00% Reduced -379.0k -379,030
11 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 306,703306.7k $1.4m $1.4m 0.00% Added +279.4k +279,414
12 FLPUTNAM INVESTMENT MANAGEMENT CO 0.02% of their portfolio PORTLAND, ME 288,810288.8k $1.3m $1.3m 0.02% New
13 GSA CAPITAL PARTNERS LLP 0.06% of their portfolio LONDON, X0 214,721214.7k $998.0k $998.0k 0.06% Reduced -38.3k -38,284
14 RTW INVESTMENTS, LP 0.01% of their portfolio NEW YORK, NY 195,000195.0k $906.8k $906.8k 0.01% Reduced -200.2k -200,231
15 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 185,654185.7k $863.9k $863.9k 0.00% Added +6.8k +6,797
16 Man Group plc 0.00% of their portfolio LONDON, X0 167,292167.3k $777.9k $777.9k 0.00% Added +37.6k +37,582
17 BlackRock, Inc. 0.00% of their portfolio New York, NY 142,625142.6k $663.2k $663.2k 0.00% Added +16.7k +16,739
18 PERCEPTIVE ADVISORS LLC 0.01% of their portfolio NEW YORK, NY 114,893114.9k $534.3k $534.3k 0.01% Unchanged
19 XTX Topco Ltd 0.01% of their portfolio LONDON, X0 111,948111.9k $520.6k $520.6k 0.01% Reduced -130.3k -130,337
20 SEI INVESTMENTS CO 0.00% of their portfolio OAKS, PA 109,005109.0k $506.9k $506.9k 0.00% Reduced -135.2k -135,235
21 Squarepoint Ops LLC 0.00% of their portfolio NEW YORK, NY 108,993109.0k $506.8k $506.8k 0.00% Reduced -179.8k -179,832
22 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 108,649108.6k $505.2k $505.2k 0.00% Added +11.3k +11,350
23 GWN SECURITIES INC. 0.06% of their portfolio Palm Beach Gardens, FL 78,03478.0k $362.9k $362.9k 0.06% New
24 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 71,25671.3k $331.3k $331.3k 0.00% Unchanged
25 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 62,57162.6k $291.0k $291.0k 0.00% Unchanged
26 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 59,99260.0k $279.0k $279.0k 0.00% Reduced -97.8k -97,829
27 PERKINS CAPITAL MANAGEMENT INC 0.20% of their portfolio WAYZATA, MN 56,79656.8k $264.1k $264.1k 0.20% Reduced -15.0k -15,000
28 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 52,08252.1k $242.2k $242.2k 0.00% Reduced -69.4k -69,352
29 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 49,71249.7k $231.2k $231.2k 0.00% Added +15.1k +15,143
30 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 39,60039.6k $184.1k $184.1k 0.00% Reduced -163.7k -163,672
31 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 39,51339.5k $183.7k $183.7k 0.00% Added +2.0k +1,964
32 Engineers Gate Manager LP 0.00% of their portfolio NEW YORK, NY 37,00037.0k $172.1k $172.1k 0.00% Reduced -49.2k -49,231
33 BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.00% of their portfolio HOUSTON, TX 30,00230.0k $139.5k $139.5k 0.00% Reduced -57.4k -57,400
34 AXQ CAPITAL, LP 0.01% of their portfolio JERSEY CITY, NJ 27,94827.9k $130.0k $130.0k 0.01% Reduced -6.6k -6,645
35 R Squared Ltd 0.06% of their portfolio HONG KONG, K3 26,07326.1k $121.2k $121.2k 0.06% Reduced -1.0k -1,034
36 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 21,13321.1k $98.3k $98.3k 0.00% New
37 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 20,93820.9k $97.4k $97.4k 0.00% Unchanged
38 Arax Advisory Partners 0.00% of their portfolio NEW YORK, NY 20,91820.9k $97.3k $97.3k 0.00% Unchanged
39 OCCUDO QUANTITATIVE STRATEGIES LP 0.01% of their portfolio FORT LAUDERDALE, FL 20,63220.6k $95.9k $95.9k 0.01% Reduced -7.2k -7,202
40 HRT FINANCIAL LP 0.00% of their portfolio NEW YORK, NY 16,09716.1k $74.0k $74.0k 0.00% New
41 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 14,39314.4k $66.9k $66.9k 0.00% Reduced -216.7k -216,722
42 Jump Financial, LLC 0.00% of their portfolio Chicago, IL 11,72511.7k $54.5k $54.5k 0.00% New
43 Corient Private Wealth LP 0.00% of their portfolio MIAMI, FL 11,09311.1k $51.6k $51.6k 0.00% Unchanged
44 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 6,3386.3k $29.5k $29.5k 0.00% Reduced -5.9k -5,879
45 Truvestments Capital LLC 0.00% of their portfolio SARASOTA, FL 5,6595.7k $26.3k $26.3k 0.00% Reduced -510 -510
46 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 5,4935.5k $25.5k $25.5k 0.00% Reduced -15.7k -15,734
47 Vanguard Global Advisers, LLC 0.00% of their portfolio MALVERN, PA 4,1414.1k $19.3k $19.3k 0.00% Unchanged
48 UBS Group AG 0.00% of their portfolio ZURICH, V8 4,0594.1k $18.9k $18.9k 0.00% Reduced -23.8k -23,845
49 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 2,9683.0k $13.8k $13.8k 0.00% New
50 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 2,3872.4k $11.1k $11.1k 0.00% Unchanged
51 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 1,1001.1k $5.1k $5.1k 0.00% Added +100 +100
52 Geneos Wealth Management Inc. 0.00% of their portfolio ENGLEWOOD, CO 1,0001.0k $4.7k $4.7k 0.00% New
53 JONES FINANCIAL COMPANIES LLLP 0.00% of their portfolio DES PERES, MO 200200 $916 $916 0.00% Unchanged
54 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 128128 $608 $608 0.00% Added +123 +123
55 FMR LLC 0.00% of their portfolio BOSTON, MA 100100 $465 $465 0.00% New
56 Caitong International Asset Management Co., Ltd 0.00% of their portfolio HONG KONG, K3 4848 $223 $223 0.00% Added +46 +46
57 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 2929 $135 $135 0.00% Reduced -19.8k -19,795