Thomas David Feringa
CIK 1551217 · View on SEC EDGAR ↗
Insider
First SEC filing: May 31, 2012 · Latest: May 31, 2012
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 60 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
60 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 3, 2015 | FFIV | S 10b5-1 | 838 | $131.87 | $110,507 | 8,787 Direct | -8.71% | Disposed | 187.1% (price as of 2026-08-20) |
| Aug. 3, 2015 | FFIV | S 10b5-1 | 2,763 | $131.02 | $362,008 | 9,625 Direct | -22.30% | Disposed | 189.0% (price as of 2026-08-20) |
| May 1, 2015 | FFIV | S 10b5-1 | 1,713 | $123.39 | $211,367 | 6,386 Direct | -21.15% | Disposed | 206.9% (price as of 2026-08-20) |
| May 1, 2015 | FFIV | S 10b5-1 | 1,900 | $122.66 | $233,054 | 8,099 Direct | -19.00% | Disposed | 208.7% (price as of 2026-08-20) |
| Feb. 2, 2015 | FFIV | S 10b5-1 | 200 | $112.79 | $22,558 | 3,776 Direct | -5.03% | Disposed | 235.7% (price as of 2026-08-20) |
| Feb. 2, 2015 | FFIV | S 10b5-1 | 3,913 | $112.00 | $438,256 | 3,976 Direct | -49.60% | Disposed | 238.1% (price as of 2026-08-20) |
| Feb. 2, 2015 | FFIV | S 10b5-1 | 1,551 | $111.11 | $172,332 | 7,889 Direct | -16.43% | Disposed | 240.8% (price as of 2026-08-20) |
| Nov. 3, 2014 | FFIV | S 10b5-1 | 1,710 | $124.93 | $213,630 | 3,415 Direct | -33.37% | Disposed | 203.1% (price as of 2026-08-20) |
| Nov. 3, 2014 | FFIV | S 10b5-1 | 2,855 | $124.16 | $354,477 | 5,125 Direct | -35.78% | Disposed | 205.0% (price as of 2026-08-20) |
| Nov. 3, 2014 | FFIV | S 10b5-1 | 181 | $122.45 | $22,163 | 7,980 Direct | -2.22% | Disposed | 209.2% (price as of 2026-08-20) |
| Aug. 1, 2014 | FFIV | S 10b5-1 | 300 | $113.17 | $33,951 | 3,113 Direct | -8.79% | Disposed | 234.6% (price as of 2026-08-20) |
| Aug. 1, 2014 | FFIV | S 10b5-1 | 4,444 | $112.30 | $499,061 | 3,413 Direct | -56.56% | Disposed | 237.2% (price as of 2026-08-20) |
| May 1, 2014 | FFIV | S 10b5-1 | 600 | $107.03 | $64,218 | 2,810 Direct | -17.60% | Disposed | 253.8% (price as of 2026-08-20) |
| May 1, 2014 | FFIV | S 10b5-1 | 2,801 | $106.69 | $298,839 | 3,410 Direct | -45.10% | Disposed | 254.9% (price as of 2026-08-20) |
| May 1, 2014 | FFIV | S 10b5-1 | 1,308 | $105.08 | $137,445 | 6,211 Direct | -17.40% | Disposed | 260.3% (price as of 2026-08-20) |
| Feb. 3, 2014 | FFIV | S 10b5-1 | 200 | $106.07 | $21,214 | 2,197 Direct | -8.34% | Disposed | 257.0% (price as of 2026-08-20) |
| Feb. 3, 2014 | FFIV | S 10b5-1 | 1,672 | $105.30 | $176,062 | 2,397 Direct | -41.09% | Disposed | 259.6% (price as of 2026-08-20) |
| Feb. 3, 2014 | FFIV | S 10b5-1 | 2,800 | $104.57 | $292,796 | 4,069 Direct | -40.76% | Disposed | 262.1% (price as of 2026-08-20) |
| Dec. 30, 2013 | FFIV | S 10b5-1 | 1,580 | $90.00 | $142,200 | 1,900 Direct | -45.40% | Disposed | 320.7% (price as of 2026-08-20) |
| Nov. 1, 2013 | FFIV | S 10b5-1 | 142 | $81.59 | $11,586 | 3,480 Direct | -3.92% | Disposed | 364.1% (price as of 2026-08-20) |
| Nov. 1, 2013 | FFIV | S 10b5-1 | 300 | $80.78 | $24,234 | 3,622 Direct | -7.65% | Disposed | 368.7% (price as of 2026-08-20) |
| Nov. 1, 2013 | FFIV | S 10b5-1 | 1,138 | $79.30 | $90,243 | 3,922 Direct | -22.49% | Disposed | 377.5% (price as of 2026-08-20) |
| Aug. 8, 2013 | FFIV | S 10b5-1 | 5,545 | $90.00 | $499,050 | 1,699 Direct | -76.55% | Disposed | 320.7% (price as of 2026-08-20) |
| Aug. 1, 2013 | FFIV | S 10b5-1 | 1,300 | $88.96 | $115,648 | 7,244 Direct | -15.22% | Disposed | 325.6% (price as of 2026-08-20) |
| Aug. 1, 2013 | FFIV | S 10b5-1 | 3,241 | $87.98 | $285,143 | 8,544 Direct | -27.50% | Disposed | 330.4% (price as of 2026-08-20) |
| May 1, 2013 | FFIV | S 10b5-1 | 100 | $75.26 | $7,526 | 2,131 Direct | -4.48% | Disposed | 403.1% (price as of 2026-08-20) |
| May 1, 2013 | FFIV | S 10b5-1 | 905 | $74.14 | $67,097 | 2,231 Direct | -28.86% | Disposed | 410.7% (price as of 2026-08-20) |
| Feb. 20, 2013 | FFIV | S 10b5-1 | 700 | $104.87 | $73,409 | 708 Direct | -49.72% | Disposed | 261.1% (price as of 2026-08-20) |
| Feb. 20, 2013 | FFIV | S 10b5-1 | 700 | $104.13 | $72,891 | 1,408 Direct | -33.21% | Disposed | 263.6% (price as of 2026-08-20) |
| Feb. 20, 2013 | FFIV | S 10b5-1 | 130 | $102.37 | $13,308 | 2,108 Direct | -5.81% | Disposed | 269.9% (price as of 2026-08-20) |
| Nov. 7, 2012 | FFIV | S 10b5-1 | 286 | $90.00 | $25,740 | 574 Direct | -33.26% | Disposed | 320.7% (price as of 2026-08-20) |
| Nov. 1, 2012 | FFIV | S 10b5-1 | 286 | $82.32 | $23,544 | 860 Direct | -24.96% | Disposed | 360.0% (price as of 2026-08-20) |
| Aug. 16, 2012 | FFIV | S 10b5-1 | 535 | $103.79 | $55,528 | 431 Direct | -55.38% | Disposed | 264.8% (price as of 2026-08-20) |
| Aug. 16, 2012 | FFIV | S 10b5-1 | 311 | $102.52 | $31,884 | 966 Direct | -24.35% | Disposed | 269.3% (price as of 2026-08-20) |
| Aug. 16, 2012 | FFIV | S 10b5-1 | 200 | $100.30 | $20,060 | 1,277 Direct | -13.54% | Disposed | 277.5% (price as of 2026-08-20) |
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, 2015 | FFIV | Restricted Stock Units [F4] | Common Stock (559) | $0.00 | — | 559 | Disposed |
| Aug. 1, 2015 | FFIV | Restricted Stock Units [F4] | Common Stock (757) | $0.00 | — | 757 | Disposed |
| Aug. 1, 2015 | FFIV | Restricted Stock Units [F4] | Common Stock (764) | $0.00 | — | 764 | Disposed |
| Aug. 1, 2015 | FFIV | Restricted Stock Units [F4] | Common Stock (1,875) | $0.00 | — | 1,875 | Disposed |
| May 1, 2015 | FFIV | Restricted Stock Units [F5] | Common Stock (559) | $0.00 | — | 559 | Disposed |
| May 1, 2015 | FFIV | Restricted Stock Units [F5] | Common Stock (758) | $0.00 | — | 758 | Disposed |
| May 1, 2015 | FFIV | Restricted Stock Units [F5] | Common Stock (764) | $0.00 | — | 764 | Disposed |
| May 1, 2015 | FFIV | Restricted Stock Units [F5] | Common Stock (1,875) | $0.00 | — | 1,875 | Disposed |
| Feb. 1, 2015 | FFIV | Restricted Stock Units [F6] | Common Stock (559) | $0.00 | — | 559 | Disposed |
| Feb. 1, 2015 | FFIV | Restricted Stock Units [F6] | Common Stock (757) | $0.00 | — | 757 | Disposed |
| Feb. 1, 2015 | FFIV | Restricted Stock Units [F6] | Common Stock (764) | $0.00 | — | 764 | Disposed |
| Feb. 1, 2015 | FFIV | Restricted Stock Units [F6] | Common Stock (1,875) | $0.00 | — | 1,875 | Disposed |
| Nov. 1, 2014 | FFIV | Restricted Stock Units [F6] | Common Stock (758) | $0.00 | — | 758 | Disposed |
| Nov. 1, 2014 | FFIV | Restricted Stock Units [F6] | Common Stock (765) | $0.00 | — | 765 | Disposed |
| Nov. 1, 2014 | FFIV | Restricted Stock Units [F6] | Common Stock (1,875) | $0.00 | — | 1,875 | Disposed |
| Oct. 31, 2014 | FFIV | Restricted Stock Units [F6] | Common Stock (8,945) | $0.00 | — | 8,945 | Acquired |
| Aug. 1, 2014 | FFIV | Restricted Stock Units [F5] | Common Stock (757) | $0.00 | — | 757 | Disposed |
| Aug. 1, 2014 | FFIV | Restricted Stock Units [F5] | Common Stock (764) | $0.00 | — | 764 | Disposed |
| Aug. 1, 2014 | FFIV | Restricted Stock Units [F5] | Common Stock (1,875) | $0.00 | — | 1,875 | Disposed |
| May 1, 2014 | FFIV | Restricted Stock Units [F6] | Common Stock (758) | $0.00 | — | 758 | Disposed |
| May 1, 2014 | FFIV | Restricted Stock Units [F6] | Common Stock (764) | $0.00 | — | 764 | Disposed |
| May 1, 2014 | FFIV | Restricted Stock Units [F6] | Common Stock (1,875) | $0.00 | — | 1,875 | Disposed |
| Feb. 1, 2014 | FFIV | Restricted Stock Units [F3] | Common Stock (757) | $0.00 | — | 757 | Disposed |
| Feb. 1, 2014 | FFIV | Restricted Stock Units [F3] | Common Stock (764) | $0.00 | — | 764 | Disposed |
| Feb. 1, 2014 | FFIV | Restricted Stock Units [F3] | Common Stock (1,875) | $0.00 | — | 1,875 | Disposed |
| Nov. 1, 2013 | FFIV | Restricted Stock Units [F5] | Common Stock (1,875) | $0.00 | — | 1,875 | Disposed |
| Nov. 1, 2013 | FFIV | Restricted Stock Units [F5] | Common Stock (765) | $0.00 | — | 765 | Disposed |
| Oct. 29, 2013 | FFIV | Restricted Stock Units [F2] | Common Stock (12,120) | $0.00 | — | 12,120 | Acquired |
| Aug. 1, 2013 | FFIV | Restricted Stock Units [F5] | Common Stock (7,500) | $0.00 | — | 7,500 | Disposed |
| Aug. 1, 2013 | FFIV | Restricted Stock Units [F5] | Common Stock (764) | $0.00 | — | 764 | Disposed |
| Aug. 1, 2013 | FFIV | Restricted Stock Units [F5] | Common Stock (716) | $0.00 | — | 716 | Disposed |
| May 1, 2013 | FFIV | Restricted Stock Units [F6] | Common Stock (764) | $0.00 | — | 764 | Disposed |
| May 1, 2013 | FFIV | Restricted Stock Units [F6] | Common Stock (715) | $0.00 | — | 715 | Disposed |
| Nov. 1, 2012 | FFIV | Restricted Stock Units [F2] | Common Stock (715) | $0.00 | — | 715 | Disposed |
| Oct. 30, 2012 | FFIV | Restricted Stock Units [F2] | Common Stock (12,228) | $0.00 | — | 12,228 | Acquired |
| Aug. 1, 2012 | FFIV | Restricted Stock Units [F2] | Common Stock (716) | $0.00 | — | 716 | Disposed |
| Aug. 1, 2012 | FFIV | Restricted Stock Units [F2] | Common Stock (591) | $0.00 | — | 591 | Disposed |
| May 30, 2012 | FFIV | Restricted Stock Units [F1] | Common Stock (30,000) | $0.00 | — | 30,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.