Five9, Inc. (FIVN) Ownership

NASDAQ: FIVNTop holders, insider trades and short interest.

FIVN ownership summary

as of October 18, 2026
Institutions
110.5%
of shares outstanding
Insiders
2.90%
of shares outstanding
Shares outstanding
74.7M
Float
66.8M
shares available to trade
Short interest
13.78%
10.2M shares short
Days to cover
4.52
short interest up 16.8% vs prior month
  • Institutions 110.49%
  • Insiders 2.90%

FIVN top institutional holders

20 largest
Five9, Inc. top institutional holders
#Holder% of sharesSharesValueChangeReported
1Vanguard Portfolio Management, LLC9.48%7.1M$228.3M+363,623 (+5.4%)June 30, 2026
2BlackRock Inc9.47%7.1M$228.0M+26,983 (+0.4%)June 30, 2026
3Voss Capital LLC6.51%4.9M$156.8M−960,000 (−16.5%)June 30, 2026
4Ameriprise Financial Inc5.54%4.1M$133.4M+2.0M (+91.8%)June 30, 2026
5Vanguard Capital Management, LLC4.43%3.3M$106.8M−16,657 (−0.5%)June 30, 2026
6Van Berkom and Associates Inc4.16%3.1M$100.2M−3.6M (−53.3%)June 30, 2026
7Anson Funds Management LP3.35%2.5M$80.6M−1.7M (−40.1%)June 30, 2026
8Driehaus Capital Management LLC3.03%2.3M$73.0M+2.3M (0.0%)June 30, 2026
9Dimensional Fund Advisors, Inc.2.97%2.2M$71.6M+1.2M (+110.7%)June 30, 2026
10Geode Capital Management, LLC2.90%2.2M$69.7M+100,599 (+4.9%)June 30, 2026
11State Street Corp2.77%2.1M$66.7M+21,316 (+1.0%)June 30, 2026
12First Trust Advisors L.P.2.50%1.9M$60.1M+462,076 (+32.9%)June 30, 2026
13Armistice Capital, LLC2.06%1.5M$49.5M−56,000 (−3.5%)June 30, 2026
14Bank of America Corp1.84%1.4M$44.4M+207,396 (+17.7%)June 30, 2026
15AQR Capital Management LLC1.64%1.2M$39.5M+279,880 (+29.5%)June 30, 2026
16Susquehanna International Group, LLP1.54%1.1M$37.0M+483,150 (+72.5%)June 30, 2026
17Point72 Asset Management, L.P.1.49%1.1M$35.8M−1.2M (−52.1%)June 30, 2026
18Morgan Stanley - Brokerage Accounts1.46%1.1M$35.1M+178,334 (+19.6%)June 30, 2026
19The Goldman Sachs Group Inc1.37%1.0M$33.0M−121,795 (−10.6%)June 30, 2026
20Invenomic Capital Management, LP1.19%893K$28.8M−44,130 (−4.7%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 12 holders added 7.5M shares and 8 cut 7.6M.

FIVN top mutual fund and ETF holders

20 largest
Five9, Inc. top fund holders
#Holder% of sharesSharesValueChangeReported
1iShares Core S&P Small-Cap ETF5.95%4.4M$143.4M+1,047 (+0.0%)September 30, 2026
2Vanguard MStar Total Stk Mkt Idx Invest3.09%2.3M$74.4M+5,287 (+0.2%)August 31, 2026
3Columbia Seligman Tech & Info A2.98%2.2M$71.8M−684,010 (−23.5%)August 31, 2026
4iShares Russell 2000 ETF2.65%2.0M$63.9M−22,848 (−1.1%)September 30, 2026
5Vanguard Information Technology ETF2.35%1.8M$56.6M+4,048 (+0.2%)September 30, 2026
6Vanguard Small Cap Index2.03%1.5M$48.8M−158,017 (−9.4%)September 30, 2026
7First Trust Cloud Computing ETF1.92%1.4M$46.3M−3,539 (−0.2%)September 30, 2026
8Vanguard MStar Small Cap Value Index1.32%985K$31.8M−77,489 (−7.3%)September 30, 2026
9Vanguard Strategic Equity Inv1.22%913K$29.4M+241,445 (+35.9%)June 30, 2026
10Fidelity Small Cap Index1.12%837K$27.0M+7,230 (+0.9%)July 31, 2026
11iShares Russell 2000 Value ETF0.96%719K$23.2M+1,090 (+0.2%)September 30, 2026
12State Street SPDR Port S&P 600 Sm CpETF0.92%685K$22.1M—September 30, 2026
13Vanguard Explorer Inv0.87%647K$20.9M—June 30, 2026
14DFA US Small Cap Value I0.85%638K$20.6M—August 31, 2026
15Driehaus Small Cap Growth Institutional0.69%517K$16.7M−97,261 (−15.8%)August 31, 2026
16iShares S&P Small-Cap 600 Value ETF0.64%480K$15.5M—September 30, 2026
17Glenmede Small Cap Equity Adv0.60%451K$14.5M−54,702 (−10.8%)September 30, 2026
18Vanguard Russell 2000 ETF0.60%445K$14.3M+5,059 (+1.1%)September 30, 2026
19Heptagon Driehaus US Sm Cp Eq C USD Acc0.58%430K$13.9M−62,224 (−12.6%)August 31, 2026
20Heptagon Driehaus US Micro Cap Eq C$ Acc0.54%403K$13.0M—August 31, 2026

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

FIVN insider transactions

latest 20
Five9, Inc. insider transactions
DateNameTransactionPriceSharesValue
2025-12-05Andy DignanSell$20.53700$14,371
2025-12-04Andy DignanSell$20.287,512$152,343
2025-12-04Bryan M LeeSell$20.3513,219$269,007
2025-12-04Leena MansharamaniSell$20.412,951$60,230
2025-12-04Matthew E TucknessSell$20.355,255$106,939
2025-12-04Michael BurklandSell$20.3517,992$366,137
2025-12-04Panos KozanianSell$20.4210,858$221,720
2025-12-04Tiffany N MeriweatherSell$20.356,852$139,438
2025-11-03Andy DignanSell$24.35700$17,045
2025-10-01Andy DignanSell$23.97700$16,779
2025-09-05Andy DignanSell$26.48700$18,536
2025-09-04Matthew E TucknessSell$25.722,020$51,954
2025-09-04Tiffany N MeriweatherSell$25.727,861$202,185
2025-09-04Panos KozanianSell$25.8710,860$280,948
2025-09-04Michael BurklandSell$25.7218,425$473,891
2025-09-04Leena MansharamaniSell$25.852,969$76,749
2025-09-04Bryan M LeeSell$25.721,889$48,585
2025-09-04Andy DignanSell$25.487,614$194,005
2025-08-13Panos KozanianSell$25.817,043$181,780
2025-08-12Michael J BurdiekBuy$24.151,000$24,150

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.

FIVN shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns FIVN

Institutional investors own 110.5% of Five9's shares and insiders 2.90%. The largest holder is Vanguard Portfolio Management, LLC with 9.48% of the shares (7.1M), as of June 30, 2026. Among the top 20 institutions, 12 added shares and 8 reduced their stake in the latest filings. Short interest is 13.78% of the float, or 4.52 days of average trading volume. The share count rose 77.6% since 2014.

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

FIVN ownership FAQ

Who owns the most Five9 stock?

The largest shareholders of Five9 are Vanguard Portfolio Management, LLC (9.48%), BlackRock Inc (9.47%), Voss Capital LLC (6.51%), Ameriprise Financial Inc (5.54%), Vanguard Capital Management, LLC (4.43%).

What percentage of Five9 is owned by institutions?

Institutions hold 110.5% of Five9's shares outstanding; insiders hold 2.90%.

Which funds own Five9?

The largest fund holders of Five9 are iShares Core S&P Small-Cap ETF (5.95%), Vanguard MStar Total Stk Mkt Idx Invest (3.09%), Columbia Seligman Tech & Info A (2.98%), iShares Russell 2000 ETF (2.65%), Vanguard Information Technology ETF (2.35%).

What is Five9's short interest?

10.2M shares of Five9 were sold short, 13.78% of the float; at the average daily volume it would take 4.52 days to cover.

Are insiders buying or selling Five9?

Of the latest 20 reported insider transactions in Five9 (since August 12, 2025), 1 were purchases and 19 were sales.

How many shares of Five9 are outstanding?

Five9 has 74.7M shares outstanding, of which 66.8M are in the public float.

Software - Infrastructure: ownership