Karsten Winther
Insider
First SEC filing: March 18, 2022 · Latest: March 18, 2022
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
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 |
|---|---|---|---|---|---|---|---|---|---|
| Dec. 18, 2025 | VRT | A | 2 | · | · | 18,852 Direct | +0.01% | Acquired | (price as of 2026-10-05) |
| Sept. 25, 2025 | VRT | A | 1 | · | · | 18,850 Direct | +0.01% | Acquired | (price as of 2026-10-05) |
| Aug. 14, 2025 | VRT | M | 4,795 | · | · | 14,386 Direct | -25.00% | Disposed | (price as of 2026-10-05) |
| Aug. 14, 2025 | VRT | M | 29,756 | · | · | 29,757 Direct | -50.00% | Disposed | (price as of 2026-10-05) |
| Aug. 14, 2025 | VRT | M | 7,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Aug. 14, 2025 | VRT | M | 103 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Aug. 14, 2025 | VRT | S | 41,654 | $134.21 | $5,590,383 | 18,848 Direct | -68.85% | Disposed | 89.0% (price as of 2026-10-05) |
| Aug. 14, 2025 | VRT | M | 4,795 | $72.09 | $345,672 | 60,502 Direct | +8.61% | Acquired | 251.8% (price as of 2026-10-05) |
| Aug. 14, 2025 | VRT | M | 29,756 | $15.84 | $471,335 | 55,707 Direct | +114.66% | Acquired | 1501.1% (price as of 2026-10-05) |
| Aug. 14, 2025 | VRT | M | 7,000 | $12.32 | $86,240 | 25,951 Direct | +36.94% | Acquired | 1958.6% (price as of 2026-10-05) |
| Aug. 14, 2025 | VRT | M | 103 | $12.05 | $1,241 | 18,951 Direct | +0.55% | Acquired | 2004.7% (price as of 2026-10-05) |
| June 26, 2025 | VRT | A | 2 | · | · | 18,848 Direct | +0.01% | Acquired | (price as of 2026-10-05) |
| May 9, 2025 | VRT | M | 5,500 | · | · | 103 Direct | -98.16% | Disposed | (price as of 2026-10-05) |
| May 9, 2025 | VRT | S | 5,500 | $94.33 | $518,815 | 18,847 Direct | -22.59% | Disposed | 168.9% (price as of 2026-10-05) |
| May 9, 2025 | VRT | M | 5,500 | $12.05 | $66,275 | 24,347 Direct | +29.18% | Acquired | 2004.7% (price as of 2026-10-05) |
| May 8, 2025 | VRT | M | 53,000 | · | · | 7,000 Direct | -88.33% | Disposed | (price as of 2026-10-05) |
| May 8, 2025 | VRT | M | 9,500 | · | · | 5,603 Direct | -62.90% | Disposed | (price as of 2026-10-05) |
| May 8, 2025 | VRT | S | 53,000 | $96.50 | $5,114,500 | 18,847 Direct | -73.77% | Disposed | 162.8% (price as of 2026-10-05) |
| May 8, 2025 | VRT | M | 53,000 | $12.32 | $652,960 | 71,847 Direct | +281.21% | Acquired | 1958.6% (price as of 2026-10-05) |
| May 8, 2025 | VRT | S | 1,200 | $96.60 | $115,920 | 18,847 Direct | -5.99% | Disposed | 162.5% (price as of 2026-10-05) |
| May 8, 2025 | VRT | M | 9,500 | $12.05 | $114,475 | 20,047 Direct | +90.07% | Acquired | 2004.7% (price as of 2026-10-05) |
| March 27, 2025 | VRT | A | 2 | · | · | 10,547 Direct | +0.02% | Acquired | (price as of 2026-10-05) |
| March 7, 2025 | VRT | A | 18,404 | · | · | 18,404 Direct | · | Acquired | (price as of 2026-10-05) |
| Dec. 19, 2024 | VRT | A | 1 | · | · | 10,545 Direct | +0.01% | Acquired | (price as of 2026-10-05) |
| Sept. 26, 2024 | VRT | A | 1 | · | · | 10,543 Direct | +0.01% | Acquired | (price as of 2026-10-05) |
| Sept. 3, 2024 | VRT | M | 30,204 | $12.05 | $363,958 | 55,466 Direct | +119.56% | Acquired | 2004.7% (price as of 2026-10-05) |
| Sept. 3, 2024 | VRT | S 10b5-1 | 12,886 | $78.08 | $1,006,139 | 42,580 Direct | -23.23% | Disposed | 224.8% (price as of 2026-10-05) |
| Sept. 3, 2024 | VRT | S 10b5-1 | 6,700 | $79.22 | $530,774 | 35,880 Direct | -15.74% | Disposed | 220.1% (price as of 2026-10-05) |
| Sept. 3, 2024 | VRT | S 10b5-1 | 6,500 | $80.12 | $520,780 | 29,380 Direct | -18.12% | Disposed | 216.6% (price as of 2026-10-05) |
| Sept. 3, 2024 | VRT | S 10b5-1 | 9,893 | $80.89 | $800,245 | 19,487 Direct | -33.67% | Disposed | 213.5% (price as of 2026-10-05) |
| Sept. 3, 2024 | VRT | S 10b5-1 | 8,945 | $82.25 | $735,726 | 10,542 Direct | -45.90% | Disposed | 208.4% (price as of 2026-10-05) |
| Sept. 3, 2024 | VRT | M | 30,204 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| June 26, 2024 | VRT | A | 1 | · | · | 25,262 Direct | 0.00% | Acquired | (price as of 2026-10-05) |
| May 4, 2024 | VRT | F | 950 | $93.01 | $88,360 | 25,261 Direct | -3.62% | Disposed | 172.7% (price as of 2026-10-05) |
| April 8, 2024 | VRT | F | 3,110 | $84.15 | $261,706 | 26,211 Direct | -10.61% | Disposed | 201.4% (price as of 2026-10-05) |
| March 28, 2024 | VRT | A | 5 | · | · | 29,322 Direct | +0.02% | Acquired | (price as of 2026-10-05) |
| March 7, 2024 | VRT | A | 19,181 | · | · | 19,181 Direct | · | Acquired | (price as of 2026-10-05) |
| Dec. 27, 2023 | VRT | A | 8 | · | · | 29,317 Direct | +0.03% | Acquired | (price as of 2026-10-05) |
| March 7, 2023 | VRT | A | 59,513 | · | · | 59,513 Direct | · | Acquired | (price as of 2026-10-05) |
| Dec. 15, 2022 | VRT | A | 16 | · | · | 29,311 Direct | +0.05% | Acquired | (price as of 2026-10-05) |
| March 16, 2022 | VRT | A | 80,000 | · | · | 80,000 Direct | · | Acquired | (price as of 2026-10-05) |
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. 14, 2025 | VRT | Stock Options | Class A Common Stock | $72.09 | March 7, 2034 | 4,795 | Disposed |
| Aug. 14, 2025 | VRT | Stock Options | Class A Common Stock | $15.84 | March 7, 2033 | 29,756 | Disposed |
| Aug. 14, 2025 | VRT | Stock Options | Class A Common Stock | $12.32 | March 16, 2032 | 7,000 | Disposed |
| Aug. 14, 2025 | VRT | Stock Options | Class A Common Stock | $12.05 | Feb. 7, 2030 | 103 | Disposed |
| May 9, 2025 | VRT | Stock Options | Class A Common Stock | $12.05 | Feb. 7, 2030 | 5,500 | Disposed |
| May 8, 2025 | VRT | Stock Options | Class A Common Stock | $12.32 | March 16, 2032 | 53,000 | Disposed |
| May 8, 2025 | VRT | Stock Options | Class A Common Stock | $12.05 | Feb. 7, 2030 | 9,500 | Disposed |
| March 7, 2025 | VRT | Stock Options | Class A Common Stock | $85.04 | March 7, 2035 | 18,404 | Acquired |
| Sept. 3, 2024 | VRT | Stock Options | Class A Common Stock | $12.05 | Feb. 7, 2030 | 30,204 | Disposed |
| March 7, 2024 | VRT | Stock Options | Class A Common Stock | $72.09 | March 7, 2034 | 19,181 | Acquired |
| March 7, 2023 | VRT | Stock Options | Class A Common Stock | $15.84 | March 7, 2033 | 59,513 | Acquired |
| March 16, 2022 | VRT | Stock Options | Class A Common Stock | $12.32 | March 16, 2032 | 80,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 2 holdings
Securities held when first becoming an insider, per SEC Form 3.