Blackrock Inc.
Rank #1
11.1%
- Shares
- 6.28M
- Change %
- +0.71%
- Filing
- Jun 30, 2026
Increased
Methodology published · Market data, model notes, and corrections process are public · Data policy · Corrections policy
Holders
F5 Inc. (FFIV) Institutional Ownership & Insider Trading History
Top FFIV institutional shareholders, filing changes, and Form 4 insider activity with filters for buys, sales, option exercises, gifts, and tax withholding.
Section freshness
Prices as of Sep 18, 4:00 PM EDT · Fundamentals checked Sep 20, 8:07 AM EDT · Statements Jun 30, 2026
Ownership read
FFIV insider sentiment: Net selling.
Blackrock Inc. is the largest institutional holder. 63 sales and 0 purchases appear in the recent Form 4 filings. Use the filters below to separate open-market activity from option exercises, gifts, awards, and tax withholding.
Insider flow
FFIV
Purchases0
Sales117.70K
Directional bars ignore awards, gifts, conversions, and tax withholding rows.
Top holder
6.28M
Blackrock Inc.
Insider stance
Net selling
$36.11M sold / $0.0000 bought
Latest filing
Sep 14, 2026
Most recent holder or insider filing date
Filings shown
150
30 holder / 120 insider
- Holder rows
- 30
- Market data source
- Latest filing
- Sep 14, 2026
- Most recent holder or insider filing date
- Increased / initiated
- 11
- 9 decreased
- Insider rows
- 120
- Market data source
Top 30 institutional holders
F5 Inc. (FFIV) institutional ownership
Ranked by reported share count, with position changes and latest filing dates where ownership data supplies them.
Vanguard Capital Management LLC
Rank #2
6.51%
- Shares
- 3.69M
- Change %
- +0.47%
- Filing
- Jun 30, 2026
Increased
State Street Corporation
Rank #3
5.47%
- Shares
- 3.10M
- Change %
- +4.01%
- Filing
- Jun 30, 2026
Increased
Vanguard Portfolio Management LLC
Rank #4
4.96%
- Shares
- 2.81M
- Change %
- -5.63%
- Filing
- Jun 30, 2026
Decreased
Jericho Capital Asset Management, LP
Rank #5
3.74%
- Shares
- 2.12M
- Change %
- -19.84%
- Filing
- Jun 30, 2026
Decreased
Hotchkis & Wiley Capital Management, LLC
Rank #6
3.64%
- Shares
- 2.06M
- Change %
- -54.98%
- Filing
- Jun 30, 2026
Decreased
Geode Capital Management, LLC
Rank #7
3.14%
- Shares
- 1.78M
- Change %
- +2.10%
- Filing
- Jun 30, 2026
Increased
First Trust Advisors LP
Rank #8
2.72%
- Shares
- 1.54M
- Change %
- +4.28%
- Filing
- Jun 30, 2026
Increased
Invesco Ltd.
Rank #9
2.45%
- Shares
- 1.39M
- Change %
- -4.13%
- Filing
- Jun 30, 2026
Decreased
AQR Capital Management, LLC
Rank #10
1.63%
- Shares
- 925.63K
- Change %
- +35.65%
- Filing
- Jun 30, 2026
Increased
VANGUARD WINDSOR FUNDS-Vanguard Windsor II Fund
Rank #11
3.45%
- Shares
- 1.95M
- Change %
- -27.04%
- Filing
- Apr 30, 2026
Decreased
VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund
Rank #12
3.16%
- Shares
- 1.79M
- Change %
- +0.05%
- Filing
- Jun 30, 2026
Increased
VANGUARD INDEX FUNDS-Vanguard 500 Index Fund
Rank #13
2.58%
- Shares
- 1.46M
- Change %
- +1.84%
- Filing
- Jun 30, 2026
Increased
VANGUARD INDEX FUNDS-Vanguard Small-Cap Index Fund
Rank #14
2.29%
- Shares
- 1.29M
- Change %
- -0.71%
- Filing
- Jun 30, 2026
Decreased
First TRT Exch-Trd Fd. II-First TRT NASDAQ Cybersecurity ETF
Rank #15
2.03%
- Shares
- 1.15M
- Change %
- +1.27%
- Filing
- Jul 31, 2026
Increased
VANGUARD INDEX FUNDS-Vanguard Small-Cap Value Index Fund
Rank #16
1.45%
- Shares
- 819.64K
- Change %
- -1.23%
- Filing
- Jun 30, 2026
Decreased
iShares Trust-iShares Core S&P 500 ETF
Rank #17
1.34%
- Shares
- 761.42K
- Change %
- -1.92%
- Filing
- Jul 31, 2026
Decreased
Fidelity Concord Street Trust-Fidelity 500 Index Fund
Rank #18
1.29%
- Shares
- 729.56K
- Change %
- +0.80%
- Filing
- Jul 31, 2026
Increased
SPDR S&P 500 ETF TRUST-State Street SPDR S&P 500 ETF Trust
Rank #19
1.22%
- Shares
- 693.03K
- Change %
- +1.48%
- Filing
- Jul 31, 2026
Increased
VANGUARD WORLD FUND-Vanguard Information Technology Index Fund
Rank #20
1.18%
- Shares
- 668.62K
- Change %
- -13.36%
- Filing
- May 31, 2026
Decreased
| # | Institution | % held | Shares | Filing date |
|---|---|---|---|---|
| 1 | 11.1% | 6.28M | Jun 30, 2026 | |
| 2 | 6.51% | 3.69M | Jun 30, 2026 | |
| 3 | 5.47% | 3.10M | Jun 30, 2026 | |
| 4 | 4.96% | 2.81M | Jun 30, 2026 | |
| 5 | Jericho Capital Asset Management, LP | 3.74% | 2.12M | Jun 30, 2026 |
| 6 | Hotchkis & Wiley Capital Management, LLC | 3.64% | 2.06M | Jun 30, 2026 |
| 7 | 3.14% | 1.78M | Jun 30, 2026 | |
| 8 | First Trust Advisors LP | 2.72% | 1.54M | Jun 30, 2026 |
| 9 | 2.45% | 1.39M | Jun 30, 2026 | |
| 10 | AQR Capital Management, LLC | 1.63% | 925.63K | Jun 30, 2026 |
| 11 | 3.45% | 1.95M | Apr 30, 2026 | |
| 12 | 3.16% | 1.79M | Jun 30, 2026 | |
| 13 | 2.58% | 1.46M | Jun 30, 2026 | |
| 14 | 2.29% | 1.29M | Jun 30, 2026 | |
| 15 | First TRT Exch-Trd Fd. II-First TRT NASDAQ Cybersecurity ETF | 2.03% | 1.15M | Jul 31, 2026 |
| 16 | 1.45% | 819.64K | Jun 30, 2026 | |
| 17 | iShares Trust-iShares Core S&P 500 ETF | 1.34% | 761.42K | Jul 31, 2026 |
| 18 | 1.29% | 729.56K | Jul 31, 2026 | |
| 19 | 1.22% | 693.03K | Jul 31, 2026 | |
| 20 | 1.18% | 668.62K | May 31, 2026 |
Showing 20 of 30 matching institutional rows.
Recent insider transactions
F5 Inc. (FFIV) Form 4 filings
Action codes are translated so open-market buys and sales are separate from awards, gifts, conversions, and tax withholding.
MONTOYA MICHAEL F
Chief Technology Officer
- Shares
- 4.43K
- % company
- <0.01%
- Price
- $410.16
- Value
- $1,815,380
Filed Sep 14, 2026
MADDISON JOHN ANTHONY
Officer
- Shares
- 204
- % company
- <0.01%
- Price
- $406.24
- Value
- $82,873
Filed Sep 14, 2026
LOCOH DONOU FRANCOIS
Chief Executive Officer
- Shares
- 3.78K
- % company
- <0.01%
- Price
- $412.44
- Value
- $1,559,854
Filed Aug 5, 2026
FOUNTAIN THOMAS DEAN
Officer
- Shares
- 1.21K
- % company
- <0.01%
- Price
- $414.63
- Value
- $500,873
Filed Aug 5, 2026
WHALEN CHAD MICHAEL
Officer
- Shares
- 703
- % company
- <0.01%
- Price
- $404.86
- Value
- $284,617
Filed Aug 3, 2026
OKEKE ANGELIQUE M
General Counsel
- Shares
- 515
- % company
- <0.01%
- Price
- $404.50
- Value
- $208,315
Filed Aug 3, 2026
ANAND KUNAL
Chief Technology Officer
- Shares
- 392
- % company
- <0.01%
- Price
- $404.63
- Value
- $158,615
Filed Aug 3, 2026
WERNER EDWARD COOPER
Chief Financial Officer
- Shares
- 599
- % company
- <0.01%
- Price
- $405.92
- Value
- $243,146
Filed Aug 3, 2026
MADDISON JOHN ANTHONY
Officer
- Shares
- 1.00K
- % company
- <0.01%
- Price
- $405.85
- Value
- $405,853
Filed Aug 3, 2026
MONTOYA MICHAEL F
Chief Operating Officer
- Shares
- 2.14K
- % company
- <0.01%
Filed Jul 31, 2026
ANAND KUNAL
Chief Technology Officer
- Shares
- 1.29K
- % company
- <0.01%
Filed Jul 31, 2026
WERNER EDWARD COOPER
Chief Financial Officer
- Shares
- 987
- % company
- <0.01%
Filed Jul 31, 2026
| # | Insider | % company | Action | Shares | Filing date |
|---|---|---|---|---|---|
| 1 | MONTOYA MICHAEL F Chief Technology Officer | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 4.43K | Sep 14, 2026 |
| 2 | MADDISON JOHN ANTHONY Officer | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 204 | Sep 14, 2026 |
| 3 | LOCOH DONOU FRANCOIS Chief Executive Officer | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 3.78K | Aug 5, 2026 |
| 4 | FOUNTAIN THOMAS DEAN Officer | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 1.21K | Aug 5, 2026 |
| 5 | WHALEN CHAD MICHAEL Officer | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 703 | Aug 3, 2026 |
| 6 | OKEKE ANGELIQUE M General Counsel | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 515 | Aug 3, 2026 |
| 7 | ANAND KUNAL Chief Technology Officer | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 392 | Aug 3, 2026 |
| 8 | WERNER EDWARD COOPER Chief Financial Officer | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 599 | Aug 3, 2026 |
| 9 | MADDISON JOHN ANTHONY Officer | <0.01% | SaleOpen-market or direct sale reported on Form 4. | 1.00K | Aug 3, 2026 |
| 10 | MONTOYA MICHAEL F Chief Operating Officer | <0.01% | OtherProvider-supplied Form 4 action code. Review the original filing before making a trading judgment. | 2.14K | Jul 31, 2026 |
| 11 | ANAND KUNAL Chief Technology Officer | <0.01% | OtherProvider-supplied Form 4 action code. Review the original filing before making a trading judgment. | 1.29K | Jul 31, 2026 |
| 12 | WERNER EDWARD COOPER Chief Financial Officer | <0.01% | OtherProvider-supplied Form 4 action code. Review the original filing before making a trading judgment. | 987 | Jul 31, 2026 |
Showing 12 of 120 matching Form 4 rows. Percent of company uses current shares outstanding.
Frequently asked
Common questions.
Who are the largest FFIV shareholders?
Blackrock Inc. is the largest reported institutional holder of FFIV, with 6.28 million shares, or about 11.09% of shares outstanding.
What does the institutional filing activity show for FFIV?
F5 Inc. has 30 institutional rows on file: 11 increased or initiated positions and 9 reduced them as of Aug 5, 2026.
What insider transactions are available for FFIV?
TECHi shows 120 dated FFIV insider transactions through Sep 14, 2026, with transaction types kept separate so administrative actions are not presented as open-market trades.
Are FFIV insiders buying or selling?
The displayed FFIV activity reads Net selling: 63 sales and 0 purchases. Other transaction types remain separate.
Who is the most active reported FFIV insider?
LOCOH DONOU FRANCOIS has the largest absolute share movement in the displayed FFIV filing rows, totaling 166,423 shares. The action labels provide the transaction context.