Mithun Banarjee
First SEC filing: March 27, 2017 · Latest: March 27, 2017
Insider at
Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 1, 2022 | WK | F | 1,102 | $64.92 | $71,542 | 160,551 Direct | -0.68% | Disposed | 9.7% (price as of 2026-10-02) |
| March 9, 2022 | WK | S | 7,042 | $101.73 | $716,383 | 161,653 Direct | -4.17% | Disposed | -30.0% (price as of 2026-10-02) |
| Feb. 3, 2022 | WK | F | 3,978 | $111.85 | $444,939 | 178,695 Direct | -2.18% | Disposed | -36.3% (price as of 2026-10-02) |
| Feb. 1, 2022 | WK | A | 17,233 | $119.68 | $2,062,445 | 187,764 Direct | +10.11% | Acquired | -40.5% (price as of 2026-10-02) |
| Feb. 1, 2022 | WK | F | 5,091 | $119.68 | $609,291 | 182,673 Direct | -2.71% | Disposed | -40.5% (price as of 2026-10-02) |
| Sept. 1, 2021 | WK | A | 11,201 | $142.85 | $1,600,063 | 170,531 Direct | +7.03% | Acquired | -50.1% (price as of 2026-10-02) |
| March 15, 2021 | WK | M | 2,750 | $13.55 | $37,262 | 166,943 Direct | +1.67% | Acquired | 425.7% (price as of 2026-10-02) |
| March 15, 2021 | WK | S | 2,750 | $96.85 | $266,338 | 164,193 Direct | -1.65% | Disposed | -26.5% (price as of 2026-10-02) |
| March 15, 2021 | WK | S | 4,863 | $96.85 | $470,982 | 159,330 Direct | -2.96% | Disposed | -26.5% (price as of 2026-10-02) |
| March 15, 2021 | WK | M | 2,750 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 12, 2021 | WK | S | 7,612 | $98.14 | $747,042 | 164,193 Direct | -4.43% | Disposed | -27.4% (price as of 2026-10-02) |
| Feb. 3, 2021 | WK | F | 3,979 | $102.91 | $409,479 | 171,805 Direct | -2.26% | Disposed | -30.8% (price as of 2026-10-02) |
| Feb. 1, 2021 | WK | A | 21,728 | $101.25 | $2,199,960 | 181,202 Direct | +13.62% | Acquired | -29.6% (price as of 2026-10-02) |
| Feb. 1, 2021 | WK | F | 5,418 | $101.25 | $548,572 | 175,784 Direct | -2.99% | Disposed | -29.6% (price as of 2026-10-02) |
| Aug. 21, 2020 | WK | M | 2,789 | $14.28 | $39,827 | 162,263 Direct | +1.75% | Acquired | 398.8% (price as of 2026-10-02) |
| Aug. 21, 2020 | WK | M | 8,250 | $13.55 | $111,788 | 170,513 Direct | +5.08% | Acquired | 425.7% (price as of 2026-10-02) |
| Aug. 21, 2020 | WK | S | 11,039 | $55.05 | $607,697 | 159,474 Direct | -6.47% | Disposed | 29.4% (price as of 2026-10-02) |
| Aug. 21, 2020 | WK | M | 2,789 | $55.05 | $153,534 | 0 Direct | -100.00% | Disposed | 29.4% (price as of 2026-10-02) |
| Aug. 21, 2020 | WK | M | 8,250 | $55.05 | $454,162 | 2,750 Direct | -75.00% | Disposed | 29.4% (price as of 2026-10-02) |
| Aug. 20, 2020 | WK | M | 5,000 | $16.66 | $83,300 | 171,100 Direct | +3.01% | Acquired | 327.6% (price as of 2026-10-02) |
| Aug. 20, 2020 | WK | M | 6,000 | $14.28 | $85,680 | 177,100 Direct | +3.51% | Acquired | 398.8% (price as of 2026-10-02) |
| Aug. 20, 2020 | WK | S | 6,184 | $55.25 | $341,666 | 170,916 Direct | -3.49% | Disposed | 28.9% (price as of 2026-10-02) |
| Aug. 20, 2020 | WK | S | 4,816 | $55.92 | $269,311 | 166,100 Direct | -2.82% | Disposed | 27.4% (price as of 2026-10-02) |
| Aug. 20, 2020 | WK | S | 6,118 | $55.36 | $338,692 | 159,982 Direct | -3.68% | Disposed | 28.7% (price as of 2026-10-02) |
| Aug. 20, 2020 | WK | S | 508 | $56.03 | $28,463 | 159,474 Direct | -0.32% | Disposed | 27.1% (price as of 2026-10-02) |
| Aug. 20, 2020 | WK | M | 5,000 | $55.21 | $276,050 | 0 Direct | -100.00% | Disposed | 29.0% (price as of 2026-10-02) |
| Aug. 20, 2020 | WK | M | 6,000 | $55.81 | $334,860 | 2,789 Direct | -68.27% | Disposed | 27.6% (price as of 2026-10-02) |
| Feb. 3, 2020 | WK | A | 30,329 | $46.16 | $1,399,987 | 168,598 Direct | +21.93% | Acquired | 54.3% (price as of 2026-10-02) |
| Feb. 3, 2020 | WK | F | 2,498 | $46.16 | $115,308 | 166,100 Direct | -1.48% | Disposed | 54.3% (price as of 2026-10-02) |
| Aug. 16, 2019 | WK | S | 70,000 | $56.25 | $3,937,500 | 138,269 Direct | -33.61% | Disposed | 26.6% (price as of 2026-10-02) |
| Aug. 14, 2019 | WK | M | 11,880 | $15.86 | $188,417 | 150,149 Direct | +8.59% | Acquired | 349.1% (price as of 2026-10-02) |
| Aug. 14, 2019 | WK | M | 1,149 | $15.86 | $18,223 | 151,298 Direct | +0.77% | Acquired | 349.1% (price as of 2026-10-02) |
| Aug. 14, 2019 | WK | M | 13,860 | $15.83 | $219,404 | 165,158 Direct | +9.16% | Acquired | 350.0% (price as of 2026-10-02) |
| Aug. 14, 2019 | WK | M | 1,000 | $14.07 | $14,070 | 166,158 Direct | +0.61% | Acquired | 406.3% (price as of 2026-10-02) |
| Aug. 14, 2019 | WK | M | 35,000 | $16.66 | $583,100 | 201,158 Direct | +21.06% | Acquired | 327.6% (price as of 2026-10-02) |
| Aug. 14, 2019 | WK | M | 7,111 | $14.28 | $101,545 | 208,269 Direct | +3.54% | Acquired | 398.8% (price as of 2026-10-02) |
| Aug. 14, 2019 | WK | M | 11,880 | $56.25 | $668,250 | 0 Direct | -100.00% | Disposed | 26.6% (price as of 2026-10-02) |
| Aug. 14, 2019 | WK | M | 1,149 | $56.25 | $64,631 | 0 Direct | -100.00% | Disposed | 26.6% (price as of 2026-10-02) |
| Aug. 14, 2019 | WK | M | 13,860 | $56.25 | $779,625 | 0 Direct | -100.00% | Disposed | 26.6% (price as of 2026-10-02) |
| Aug. 14, 2019 | WK | M | 1,000 | $56.25 | $56,250 | 0 Direct | -100.00% | Disposed | 26.6% (price as of 2026-10-02) |
| Aug. 14, 2019 | WK | M | 35,000 | $56.25 | $1,968,750 | 5,000 Direct | -87.50% | Disposed | 26.6% (price as of 2026-10-02) |
| Aug. 14, 2019 | WK | M | 7,111 | $56.25 | $399,994 | 8,789 Direct | -44.72% | Disposed | 26.6% (price as of 2026-10-02) |
| Feb. 25, 2019 | WK | M | 9,900 | $2.53 | $25,047 | 148,169 Direct | +7.16% | Acquired | 2715.4% (price as of 2026-10-02) |
| Feb. 25, 2019 | WK | M | 15,000 | $14.07 | $211,050 | 163,169 Direct | +10.12% | Acquired | 406.3% (price as of 2026-10-02) |
| Feb. 25, 2019 | WK | M | 4,100 | $14.28 | $58,548 | 167,269 Direct | +2.51% | Acquired | 398.8% (price as of 2026-10-02) |
| Feb. 25, 2019 | WK | M | 11,000 | $13.55 | $149,050 | 178,269 Direct | +6.58% | Acquired | 425.7% (price as of 2026-10-02) |
| Feb. 25, 2019 | WK | S | 40,000 | $48.32 | $1,932,800 | 138,269 Direct | -22.44% | Disposed | 47.4% (price as of 2026-10-02) |
| Feb. 25, 2019 | WK | M | 9,900 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 25, 2019 | WK | M | 15,000 | · | · | 1,000 Direct | -93.75% | Disposed | (price as of 2026-10-02) |
| Feb. 25, 2019 | WK | M | 4,100 | · | · | 15,900 Direct | -20.50% | Disposed | (price as of 2026-10-02) |
| Feb. 25, 2019 | WK | M | 11,000 | · | · | 11,000 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| Feb. 1, 2019 | WK | A | 26,278 | $41.86 | $1,099,997 | 138,638 Direct | +23.39% | Acquired | 70.2% (price as of 2026-10-02) |
| Feb. 1, 2019 | WK | F | 369 | $41.86 | $15,446 | 138,269 Direct | -0.27% | Disposed | 70.2% (price as of 2026-10-02) |
| Feb. 1, 2018 | WK | A | 22,472 | $22.25 | $500,002 | 22,472 Direct | · | Acquired | 220.1% (price as of 2026-10-02) |
| Feb. 1, 2018 | WK | A | 89,888 | $22.25 | $2,000,008 | 112,360 Direct | +400.00% | Acquired | 220.1% (price as of 2026-10-02) |
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 |
|---|---|---|---|---|---|---|---|
| March 15, 2021 | WK | Employee Stock Option to Purchase Class A Common Stock | Class A Common Stock | $13.55 | Jan. 2, 2027 | 2,750 | Disposed |
| Aug. 21, 2020 | WK | Employee Stock Option to Purchase Class A Common Stock | Class A Common Stock | $14.28 | July 31, 2026 | 2,789 | Disposed |
| Aug. 21, 2020 | WK | Employee Stock Option to Purchase Class A Common Stock | Class A Common Stock | $13.55 | Jan. 2, 2027 | 8,250 | Disposed |
| Aug. 20, 2020 | WK | Employee Stock Option to Purchase Class A Common Stock | Class A Common Stock | $16.66 | Jan. 3, 2026 | 5,000 | Disposed |
| Aug. 20, 2020 | WK | Employee Stock Option to Purchase Class A Common Stock | Class A Common Stock | $14.28 | July 31, 2026 | 6,000 | Disposed |
| Aug. 14, 2019 | WK | Employee Stock Option to Purchase Class A Common Stock | Class A Common Stock | $15.86 | Jan. 13, 2024 | 11,880 | Disposed |
| Aug. 14, 2019 | WK | Employee Stock Option to Purchase Class A Common Stock | Class A Common Stock | $15.86 | Jan. 13, 2024 | 1,149 | Disposed |
| Aug. 14, 2019 | WK | Employee Stock Option to Purchase Class A Common Stock | Class A Common Stock | $15.83 | Nov. 5, 2024 | 13,860 | Disposed |
| Aug. 14, 2019 | WK | Employee Stock Option to Purchase Class A Common Stock | Class A Common Stock | $14.07 | March 31, 2025 | 1,000 | Disposed |
| Aug. 14, 2019 | WK | Employee Stock Option to Purchase Class A Common Stock | Class A Common Stock | $16.66 | Jan. 3, 2026 | 35,000 | Disposed |
| Aug. 14, 2019 | WK | Employee Stock Option to Purchase Class A Common Stock | Class A Common Stock | $14.28 | July 31, 2026 | 7,111 | Disposed |
| Feb. 25, 2019 | WK | Employee Stock Option to Purchase Class A Common Stock | Class A Common Stock | $2.53 | Nov. 1, 2021 | 9,900 | Disposed |
| Feb. 25, 2019 | WK | Employee Stock Option to Purchase Class A Common Stock | Class A Common Stock | $14.07 | March 31, 2025 | 15,000 | Disposed |
| Feb. 25, 2019 | WK | Employee Stock Option to Purchase Class A Common Stock | Class A Common Stock | $14.28 | July 31, 2026 | 4,100 | Disposed |
| Feb. 25, 2019 | WK | Employee Stock Option to Purchase Class A Common Stock | Class A Common Stock | $13.55 | Jan. 2, 2027 | 11,000 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 8 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| March 27, 2017 | WK | Employee Stock Option to Purchase Class A Common Stock [F1] | 9,900 | Direct |
| March 27, 2017 | WK | Employee Stock Option to Purchase Class A Common Stock [F1] | 1,149 | Direct |
| March 27, 2017 | WK | Employee Stock Option to Purchase Class A Common Stock [F1] | 11,880 | Direct |
| March 27, 2017 | WK | Employee Stock Option to Purchase Class A Common Stock [F1] | 13,860 | Direct |
| March 27, 2017 | WK | Employee Stock Option to Purchase Class A Common Stock | 16,000 | Direct |
| March 27, 2017 | WK | Employee Stock Option to Purchase Class A Common Stock | 40,000 | Direct |
| March 27, 2017 | WK | Employee Stock Option to Purchase Class A Common Stock | 20,000 | Direct |
| March 27, 2017 | WK | Employee Stock Option to Purchase Class A Common Stock | 22,000 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2021 | $400,000 | · | $3,800,023 | · | $450,000 | · | $6,889 | $4,656,912 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.