Thomas Dean Fountain

CIK 1728330 · View on SEC EDGAR ↗

Insider

First SEC filing: Jan. 28, 2026 · Latest: Jan. 28, 2026

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Insider at

Insider transactions

0 buys (P) 3 sells (S) Net: $-1,665,450 + 78 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

78 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Aug. 5, 2026 FFIV S 10b5-1 1,208 $414.63 $500,873 8,060 Direct -13.03% Disposed -8.6% (price as of 2026-08-21)
Jan. 26, 2026 FFIV S 10b5-1 3,343 $261.87 $875,431 8,060 Direct -29.32% Disposed 44.7% (price as of 2026-08-21)
Dec. 29, 2025 FFIV S 10b5-1 1,100 $262.86 $289,146 14,733 Direct -6.95% Disposed 44.2% (price as of 2026-08-21)
Aug. 4, 2025 FFIV S 10b5-1 1,347 $309.73 $417,206 20,699 Direct -6.11% Disposed 22.4% (price as of 2026-08-21)
May 2, 2025 FFIV S 10b5-1 1,347 $269.03 $362,383 20,660 Direct -6.12% Disposed 40.9% (price as of 2026-08-21)
Feb. 3, 2025 FFIV S 10b5-1 1,314 $293.40 $385,528 20,528 Direct -6.02% Disposed 29.2% (price as of 2026-08-21)
Nov. 4, 2024 FFIV S 10b5-1 200 $232.99 $46,598 20,386 Direct -0.97% Disposed 62.7% (price as of 2026-08-21)
Nov. 4, 2024 FFIV S 10b5-1 2,477 $232.41 $575,680 20,586 Direct -10.74% Disposed 63.1% (price as of 2026-08-21)
Nov. 4, 2024 FFIV S 10b5-1 715 $231.30 $165,380 23,063 Direct -3.01% Disposed 63.9% (price as of 2026-08-21)
Nov. 4, 2024 FFIV S 10b5-1 540 $229.98 $124,189 23,778 Direct -2.22% Disposed 64.8% (price as of 2026-08-21)
Aug. 2, 2024 FFIV S 10b5-1 851 $192.71 $163,996 16,000 Direct -5.05% Disposed 96.7% (price as of 2026-08-21)
May 2, 2024 FFIV S 10b5-1 851 $167.53 $142,568 15,504 Direct -5.20% Disposed 126.2% (price as of 2026-08-21)
Feb. 8, 2024 FFIV S 10b5-1 851 $183.06 $155,784 15,008 Direct -5.37% Disposed 107.0% (price as of 2026-08-21)
Nov. 2, 2023 FFIV S 10b5-1 311 $151.70 $47,179 14,545 Direct -2.09% Disposed 149.9% (price as of 2026-08-21)
Nov. 2, 2023 FFIV S 10b5-1 3,962 $150.35 $595,687 14,856 Direct -21.05% Disposed 152.1% (price as of 2026-08-21)
Aug. 2, 2023 FFIV S 10b5-1 919 $159.08 $146,195 11,999 Direct -7.11% Disposed 138.3% (price as of 2026-08-21)
May 2, 2023 FFIV S 10b5-1 919 $133.02 $122,245 11,490 Direct -7.41% Disposed 184.9% (price as of 2026-08-21)
Feb. 2, 2023 FFIV S 10b5-1 1,156 $151.49 $175,122 10,981 Direct -9.52% Disposed 150.2% (price as of 2026-08-21)
Nov. 2, 2022 FFIV S 232 $144.40 $33,501 10,753 Direct -2.11% Disposed 162.5% (price as of 2026-08-21)
Nov. 2, 2022 FFIV S 250 $142.57 $35,642 10,985 Direct -2.23% Disposed 165.9% (price as of 2026-08-21)
Nov. 2, 2022 FFIV S 1,792 $141.43 $253,443 11,235 Direct -13.76% Disposed 168.0% (price as of 2026-08-21)
Nov. 2, 2022 FFIV S 2,500 $140.56 $351,400 13,027 Direct -16.10% Disposed 169.7% (price as of 2026-08-21)

Showing latest 100 of 228 transactions

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date Ticker Security Underlying Exercise price Expiration Shares A/D
Aug. 1, 2026 FFIV Restricted Stock Unit [F2] Common Stock (1,042) $0.00 — 1,042 Disposed
Aug. 1, 2026 FFIV Restricted Stock Unit [F2] Common Stock (708) $0.00 — 708 Disposed
Aug. 1, 2026 FFIV Restricted Stock Unit [F2] Common Stock (950) $0.00 — 950 Disposed
Aug. 1, 2025 FFIV Restricted Stock Unit [F2] Common Stock (950) $0.00 — 950 Disposed
Aug. 1, 2025 FFIV Restricted Stock Unit [F2] Common Stock (1,042) $0.00 — 1,042 Disposed
Aug. 1, 2025 FFIV Restricted Stock Unit [F2] Common Stock (1,009) $0.00 — 1,009 Disposed
May 1, 2025 FFIV Restricted Stock Unit [F3] Common Stock (951) $0.00 — 951 Disposed
May 1, 2025 FFIV Restricted Stock Unit [F3] Common Stock (1,042) $0.00 — 1,042 Disposed
May 1, 2025 FFIV Restricted Stock Unit [F3] Common Stock (1,009) $0.00 — 1,009 Disposed
Feb. 1, 2025 FFIV Restricted Stock Unit [F3] Common Stock (950) $0.00 — 950 Disposed
Feb. 1, 2025 FFIV Restricted Stock Unit [F3] Common Stock (1,042) $0.00 — 1,042 Disposed
Feb. 1, 2025 FFIV Restricted Stock Unit [F3] Common Stock (1,009) $0.00 — 1,009 Disposed
Nov. 1, 2024 FFIV Restricted Stock Unit [F2,F7] Common Stock (11,406) $0.00 — 11,406 Acquired
Nov. 1, 2024 FFIV Restricted Stock Unit [F2] Common Stock (1,043) $0.00 — 1,043 Disposed
Nov. 1, 2024 FFIV Restricted Stock Unit [F2] Common Stock (1,009) $0.00 — 1,009 Disposed
Nov. 1, 2024 FFIV Restricted Stock Unit [F2] Common Stock (678) $0.00 — 678 Disposed
Aug. 1, 2024 FFIV Restricted Stock Unit [F5] Common Stock (1,042) $0.00 — 1,042 Disposed
Aug. 1, 2024 FFIV Restricted Stock Unit [F5] Common Stock (1,009) $0.00 — 1,009 Disposed
Aug. 1, 2024 FFIV Restricted Stock Unit [F5] Common Stock (678) $0.00 — 678 Disposed
May 1, 2024 FFIV Restricted Stock Unit [F5] Common Stock (1,042) $0.00 — 1,042 Disposed
May 1, 2024 FFIV Restricted Stock Unit [F5] Common Stock (1,009) $0.00 — 1,009 Disposed
May 1, 2024 FFIV Restricted Stock Unit [F5] Common Stock (678) $0.00 — 678 Disposed
Feb. 1, 2024 FFIV Restricted Stock Unit [F2] Common Stock (1,009) $0.00 — 1,009 Disposed
Feb. 1, 2024 FFIV Restricted Stock Unit [F2] Common Stock (1,042) $0.00 — 1,042 Disposed
Feb. 1, 2024 FFIV Restricted Stock Unit [F2] Common Stock (678) $0.00 — 678 Disposed
Nov. 1, 2023 FFIV Restricted Stock Unit [F2,F7] Common Stock (12,507) $0.00 — 12,507 Acquired
Nov. 1, 2023 FFIV Restricted Stock Unit [F2] Common Stock (1,009) $0.00 — 1,009 Disposed
Nov. 1, 2023 FFIV Restricted Stock Unit [F2] Common Stock (678) $0.00 — 678 Disposed
Nov. 1, 2023 FFIV Restricted Stock Unit [F2] Common Stock (1,144) $0.00 — 1,144 Disposed
Aug. 1, 2023 FFIV Restricted Stock Unit [F3] Common Stock (1,009) $0.00 — 1,009 Disposed
Aug. 1, 2023 FFIV Restricted Stock Unit [F3] Common Stock (678) $0.00 — 678 Disposed
Aug. 1, 2023 FFIV Restricted Stock Unit [F3] Common Stock (1,143) $0.00 — 1,143 Disposed
May 1, 2023 FFIV Restricted Stock Unit [F3] Common Stock (1,009) $0.00 — 1,009 Disposed
May 1, 2023 FFIV Restricted Stock Unit [F3] Common Stock (678) $0.00 — 678 Disposed
May 1, 2023 FFIV Restricted Stock Unit [F3] Common Stock (1,143) $0.00 — 1,143 Disposed
Feb. 1, 2023 FFIV Restricted Stock Unit [F3] Common Stock (1,009) $0.00 — 1,009 Disposed
Feb. 1, 2023 FFIV Restricted Stock Unit [F3] Common Stock (678) $0.00 — 678 Disposed
Feb. 1, 2023 FFIV Restricted Stock Unit [F3] Common Stock (1,143) $0.00 — 1,143 Disposed
Nov. 1, 2022 FFIV Restricted Stock Unit [F6,F11] Common Stock (12,108) $0.00 — 12,108 Acquired
Nov. 1, 2022 FFIV Restricted Stock Unit [F6] Common Stock (799) $0.00 — 799 Disposed
Nov. 1, 2022 FFIV Restricted Stock Unit [F6] Common Stock (678) $0.00 — 678 Disposed
Nov. 1, 2022 FFIV Restricted Stock Unit [F6] Common Stock (1,143) $0.00 — 1,143 Disposed
Aug. 1, 2022 FFIV Restricted Stock Unit [F3] Common Stock (799) $0.00 — 799 Disposed
Aug. 1, 2022 FFIV Restricted Stock Unit [F3] Common Stock (678) $0.00 — 678 Disposed
Aug. 1, 2022 FFIV Restricted Stock Unit [F3] Common Stock (1,143) $0.00 — 1,143 Disposed
May 1, 2022 FFIV Restricted Stock Unit [F2] Common Stock (798) $0.00 — 798 Disposed
May 1, 2022 FFIV Restricted Stock Unit [F2] Common Stock (678) $0.00 — 678 Disposed
May 1, 2022 FFIV Restricted Stock Unit [F2] Common Stock (1,143) $0.00 — 1,143 Disposed
Feb. 1, 2022 FFIV Restricted Stock Unit [F3] Common Stock (1,380) $0.00 — 1,380 Disposed
Feb. 1, 2022 FFIV Restricted Stock Unit [F3] Common Stock (799) $0.00 — 799 Disposed
Feb. 1, 2022 FFIV Restricted Stock Unit [F3] Common Stock (677) $0.00 — 677 Disposed
Feb. 1, 2022 FFIV Restricted Stock Unit [F3] Common Stock (1,143) $0.00 — 1,143 Disposed
Nov. 1, 2021 FFIV Restricted Stock Unit [F2,F8] Common Stock (8,135) $0.00 — 8,135 Acquired
Nov. 1, 2021 FFIV Restricted Stock Unit [F2] Common Stock (1,379) $0.00 — 1,379 Disposed
Nov. 1, 2021 FFIV Restricted Stock Unit [F2] Common Stock (798) $0.00 — 798 Disposed
Nov. 1, 2021 FFIV Restricted Stock Unit [F2] Common Stock (652) $0.00 — 652 Disposed
Nov. 1, 2021 FFIV Restricted Stock Unit [F2] Common Stock (1,143) $0.00 — 1,143 Disposed
Aug. 1, 2021 FFIV Restricted Stock Unit [F2] Common Stock (1,379) $0.00 — 1,379 Disposed
Aug. 1, 2021 FFIV Restricted Stock Unit [F2] Common Stock (799) $0.00 — 799 Disposed
Aug. 1, 2021 FFIV Restricted Stock Unit [F2] Common Stock (651) $0.00 — 651 Disposed
Aug. 1, 2021 FFIV Restricted Stock Unit [F2] Common Stock (1,143) $0.00 — 1,143 Disposed
May 1, 2021 FFIV Restricted Stock Unit [F2] Common Stock (1,379) $0.00 — 1,379 Disposed
May 1, 2021 FFIV Restricted Stock Unit [F2] Common Stock (799) $0.00 — 799 Disposed
May 1, 2021 FFIV Restricted Stock Unit [F2] Common Stock (652) $0.00 — 652 Disposed
May 1, 2021 FFIV Restricted Stock Unit [F2] Common Stock (1,143) $0.00 — 1,143 Disposed
Feb. 1, 2021 FFIV Restricted Stock Unit [F2] Common Stock (1,379) $0.00 — 1,379 Disposed
Feb. 1, 2021 FFIV Restricted Stock Unit [F2] Common Stock (798) $0.00 — 798 Disposed
Feb. 1, 2021 FFIV Restricted Stock Unit [F2] Common Stock (651) $0.00 — 651 Disposed
Feb. 1, 2021 FFIV Restricted Stock Unit [F2] Common Stock (1,143) $0.00 — 1,143 Disposed
Nov. 2, 2020 FFIV Restricted Stock Unit [F1,F2] Common Stock (13,717) $0.00 — 13,717 Acquired
Nov. 1, 2020 FFIV Restricted Stock Unit [F4] Common Stock (1,379) $0.00 — 1,379 Disposed
Nov. 1, 2020 FFIV Restricted Stock Unit [F4] Common Stock (799) $0.00 — 799 Disposed
Nov. 1, 2020 FFIV Restricted Stock Unit [F4] Common Stock (652) $0.00 — 652 Disposed
Aug. 1, 2020 FFIV Restricted Stock Unit [F2] Common Stock (1,379) $0.00 — 1,379 Disposed
Aug. 1, 2020 FFIV Restricted Stock Unit [F2] Common Stock (798) $0.00 — 798 Disposed
Aug. 1, 2020 FFIV Restricted Stock Unit [F2] Common Stock (651) $0.00 — 651 Disposed
May 1, 2020 FFIV Restricted Stock Unit [F2] Common Stock (1,379) $0.00 — 1,379 Disposed
May 1, 2020 FFIV Restricted Stock Unit [F2] Common Stock (799) $0.00 — 799 Disposed
May 1, 2020 FFIV Restricted Stock Unit [F2] Common Stock (652) $0.00 — 652 Disposed
Feb. 1, 2020 FFIV Restricted Stock Unit [F2] Common Stock (1,379) $0.00 — 1,379 Disposed
Feb. 1, 2020 FFIV Restricted Stock Unit [F2] Common Stock (798) $0.00 — 798 Disposed
Feb. 1, 2020 FFIV Restricted Stock Unit [F2] Common Stock (651) $0.00 — 651 Disposed
Nov. 1, 2019 FFIV Restricted Stock Unit [F2,F6] Common Stock (9,583) $0.00 — 9,583 Acquired
Nov. 1, 2019 FFIV Restricted Stock Unit [F2] Common Stock (1,379) $0.00 — 1,379 Disposed
Nov. 1, 2019 FFIV Restricted Stock Unit [F2] Common Stock (652) $0.00 — 652 Disposed
Aug. 1, 2019 FFIV Restricted Stock Unit [F2] Common Stock (1,379) $0.00 — 1,379 Disposed
Aug. 1, 2019 FFIV Restricted Stock Unit [F2] Common Stock (651) $0.00 — 651 Disposed
May 1, 2019 FFIV Restricted Stock Unit [F4] Common Stock (1,379) $0.00 — 1,379 Disposed
May 1, 2019 FFIV Restricted Stock Unit [F4] Common Stock (652) $0.00 — 652 Disposed
Feb. 1, 2019 FFIV Restricted Stock Unit [F4] Common Stock (5,516) $0.00 — 5,516 Disposed
Feb. 1, 2019 FFIV Restricted Stock Unit [F4] Common Stock (651) $0.00 — 651 Disposed
Nov. 1, 2018 FFIV Restricted Stock Unit [F2,F3] Common Stock (7,818) $0.00 — 7,818 Acquired
Feb. 1, 2018 FFIV Restricted Stock Unit [F1] Common Stock (22,065) $0.00 — 22,065 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).