Quince Therapeutics, Inc. (QNCX) Ownership

NASDAQ: QNCXTop holders, insider trades and short interest.

QNCX ownership summary

as of October 18, 2026
Institutions
34.5%
of shares outstanding
Insiders
2.90%
of shares outstanding
Shares outstanding
1.0M
Float
680K
shares available to trade
Short interest
5.91%
60K shares short
Days to cover
2.92
short interest up 19.2% vs prior month
  • Institutions 34.49%
  • Insiders 2.90%
  • Other investors 62.60%

QNCX top institutional holders

20 largest
Quince Therapeutics, Inc. top institutional holders
#Holder% of sharesSharesValueChangeReported
1Ikarian Capital, LLC1.30%72K$2.3M+72,251 (0.0%)June 30, 2026
2Millennium Management LLC1.27%71K$2.3M+58,260 (+465.4%)June 30, 2026
3Balyasny Asset Management LLC1.26%70K$2.2M+69,967 (0.0%)June 30, 2026
4Squadron Capital Management LLC0.72%40K$1.3M+40,375 (0.0%)June 30, 2026
5Shay Capital LLC0.31%17K$559,500+8,603 (+97.0%)June 30, 2026
6BOOTHBAY FUND MANAGEMENT, LLC0.25%14K$445,569+13,911 (0.0%)June 30, 2026
7Jane Street Group LLC0.23%13K$404,923+12,642 (0.0%)June 30, 2026
8Vanguard Capital Management, LLC0.22%12K$385,769+9,737 (+422.1%)June 30, 2026
9Cormorant Asset Management, LLC0.10%5,498$176,101+5,498 (0.0%)June 30, 2026
10UBS Group AG0.08%4,730$151,502+4,727 (+157,566.7%)June 30, 2026
11Morgan Stanley - Brokerage Accounts0.07%4,084$130,811+4,080 (+102,000.0%)June 30, 2026
12Vanguard Fiduciary Trust Co0.06%3,614$115,756+2,452 (+211.0%)June 30, 2026
13Royal Bank of Canada0.01%3,291$105,411+3,291 (0.0%)March 31, 2026
14BlackRock Inc0.03%1,702$54,515−664 (−28.1%)June 30, 2026
15Tower Research Capital LLC0.01%567$18,161+523 (+1,188.6%)June 30, 2026
16Operose Advisors LLC<0.01%159$5,093+159 (0.0%)June 30, 2026
17Fortitude Family Office LLC<0.01%40$1,281—June 30, 2026
18Barclays PLC<0.01%27$865+27 (0.0%)June 30, 2026
19Integrated Wealth Concepts LLC<0.01%12$384+12 (0.0%)June 30, 2026
20Wells Fargo & Co<0.01%10$320+10 (0.0%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 18 holders added 307K shares and 1 cut 664.

QNCX top mutual fund and ETF holders

5 largest
Quince Therapeutics, Inc. top fund holders
#Holder% of sharesSharesValueChangeReported
1Fidelity Extended Market Index1.92%5,356$171,553+1,015 (+23.4%)August 31, 2026
2Fidelity Series Total Market Index0.45%1,248$39,973−1,265 (−50.3%)August 31, 2026
3Fidelity Total Market Index0.41%1,147$36,738+720 (+168.6%)August 31, 2026
4Fidelity Nasdaq Composite Index0.21%580$18,577—August 31, 2026
5Guggenheim Active Allocation Fund<0.01%22$705+10 (+83.3%)May 31, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

QNCX insider transactions

latest 17
Quince Therapeutics, Inc. insider transactions
DateNameTransactionPriceSharesValue
2024-08-29Dirk ThyeBuy$6.907,750$53,475
2024-08-21Brendan HannahBuy$6.303,084$19,429
2024-08-20Charles S RyanBuy$6.504,838$31,447
2024-08-19Brendan HannahBuy$5.80215$1,247
2023-12-14David LamondBuy$10.402,262$23,525
2023-12-12David LamondBuy$10.202,232$22,766
2023-12-07David LamondBuy$10.101,912$19,311
2023-12-05David LamondBuy$10.101,912$19,311
2023-12-01David LamondBuy$9.401,437$13,508
2023-11-29David LamondBuy$9.801,437$14,083
2023-08-30David LamondBuy$13.104,102$53,736
2023-08-17David LamondBuy$12.902,476$31,940
2023-08-15David LamondBuy$13.2010,788$142,402
2023-08-10Dirk ThyeBuy$12.608,800$110,880
2023-08-08Brendan HannahBuy$12.207,176$87,547
2023-08-08Dirk ThyeBuy$12.408,000$99,200
2023-08-08Margaret McloughlinBuy$12.30800$9,840

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

QNCX shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns QNCX

Institutional investors own 34.5% of Quince Therapeutics's shares and insiders 2.90%. The largest holder is Ikarian Capital, LLC with 1.30% of the shares (72K), as of June 30, 2026. Among the top 20 institutions, 18 added shares and 1 reduced their stake in the latest filings. Short interest is 5.91% of the float, or 2.92 days of average trading volume. The share count rose 158.4% since 2018.

Related: QNCX analyst forecast, QNCX key metrics. See the QNCX stock overview for the latest quote and news.

QNCX ownership FAQ

Who owns the most Quince Therapeutics stock?

The largest shareholders of Quince Therapeutics are Ikarian Capital, LLC (1.30%), Millennium Management LLC (1.27%), Balyasny Asset Management LLC (1.26%), Squadron Capital Management LLC (0.72%), Shay Capital LLC (0.31%).

What percentage of Quince Therapeutics is owned by institutions?

Institutions hold 34.5% of Quince Therapeutics's shares outstanding; insiders hold 2.90%.

Which funds own Quince Therapeutics?

The largest fund holders of Quince Therapeutics are Fidelity Extended Market Index (1.92%), Fidelity Series Total Market Index (0.45%), Fidelity Total Market Index (0.41%), Fidelity Nasdaq Composite Index (0.21%), Guggenheim Active Allocation Fund (<0.01%).

What is Quince Therapeutics's short interest?

60K shares of Quince Therapeutics were sold short, 5.91% of the float; at the average daily volume it would take 2.92 days to cover.

Are insiders buying or selling Quince Therapeutics?

Of the latest 17 reported insider transactions in Quince Therapeutics (since August 8, 2023), 17 were purchases and 0 were sales.

How many shares of Quince Therapeutics are outstanding?

Quince Therapeutics has 1.0M shares outstanding, of which 680K are in the public float.

Biotechnology: ownership