Fritz Prinz
Insider
First SEC filing: Dec. 7, 2020 · Latest: Dec. 7, 2020
Insider at
Insider transactions
0 buys (P)
8 sells (S)
Net: $-15,490,491
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 |
|---|---|---|---|---|---|---|---|---|---|
| Oct. 24, 2025 | QS | C | 480,878 | · | · | 480,878 Indirect | · | Acquired | (price as of 2026-10-06) |
| Oct. 24, 2025 | QS | C | 250,000 | · | · | 250,000 Indirect | · | Acquired | (price as of 2026-10-06) |
| Oct. 24, 2025 | QS | C | 250,000 | · | · | 250,000 Indirect | · | Acquired | (price as of 2026-10-06) |
| Oct. 24, 2025 | QS | S | 18,353 | $15.47 | $283,921 | 142,990 Direct | -11.38% | Disposed | -69.9% (price as of 2026-10-06) |
| Oct. 24, 2025 | QS | S | 769 | $15.98 | $12,289 | 142,221 Direct | -0.54% | Disposed | -70.9% (price as of 2026-10-06) |
| Oct. 24, 2025 | QS | S | 461,558 | $15.47 | $7,140,302 | 19,320 Indirect | -95.98% | Disposed | -69.9% (price as of 2026-10-06) |
| Oct. 24, 2025 | QS | S | 19,320 | $15.98 | $308,734 | 0 Indirect | -100.00% | Disposed | -70.9% (price as of 2026-10-06) |
| Oct. 24, 2025 | QS | S | 239,961 | $15.47 | $3,712,197 | 10,039 Indirect | -95.98% | Disposed | -69.9% (price as of 2026-10-06) |
| Oct. 24, 2025 | QS | S | 10,039 | $15.98 | $160,423 | 0 Indirect | -100.00% | Disposed | -70.9% (price as of 2026-10-06) |
| Oct. 24, 2025 | QS | S | 239,951 | $15.47 | $3,712,042 | 10,049 Indirect | -95.98% | Disposed | -69.9% (price as of 2026-10-06) |
| Oct. 24, 2025 | QS | S | 10,049 | $15.98 | $160,583 | 0 Indirect | -100.00% | Disposed | -70.9% (price as of 2026-10-06) |
| Oct. 24, 2025 | QS | C | 480,878 | · | · | 6,430,568 Indirect | -6.96% | Disposed | (price as of 2026-10-06) |
| Oct. 24, 2025 | QS | C | 250,000 | · | · | 1,154,738 Indirect | -17.80% | Disposed | (price as of 2026-10-06) |
| Oct. 24, 2025 | QS | C | 250,000 | · | · | 1,023,436 Indirect | -19.63% | Disposed | (price as of 2026-10-06) |
| July 25, 2025 | QS | C | 260,739 | · | · | 529,813 Indirect | +96.90% | Acquired | (price as of 2026-10-06) |
| July 25, 2025 | QS | C | 118,636 | · | · | 200,000 Indirect | +145.81% | Acquired | (price as of 2026-10-06) |
| July 25, 2025 | QS | C | 118,636 | · | · | 200,000 Indirect | +145.81% | Acquired | (price as of 2026-10-06) |
| July 25, 2025 | QS | S | 529,813 | $11.62 | $6,156,427 | 0 Indirect | -100.00% | Disposed | -60.0% (price as of 2026-10-06) |
| July 25, 2025 | QS | S | 200,000 | $11.62 | $2,324,000 | 0 Indirect | -100.00% | Disposed | -60.0% (price as of 2026-10-06) |
| July 25, 2025 | QS | S | 200,000 | $11.62 | $2,324,000 | 0 Indirect | -100.00% | Disposed | -60.0% (price as of 2026-10-06) |
| July 25, 2025 | QS | S | 70,187 | $11.62 | $815,573 | 161,343 Direct | -30.31% | Disposed | -60.0% (price as of 2026-10-06) |
| July 25, 2025 | QS | C | 260,739 | · | · | 6,911,446 Indirect | -3.64% | Disposed | (price as of 2026-10-06) |
| July 25, 2025 | QS | C | 118,636 | · | · | 1,404,738 Indirect | -7.79% | Disposed | (price as of 2026-10-06) |
| July 25, 2025 | QS | C | 118,636 | · | · | 1,273,436 Indirect | -8.52% | Disposed | (price as of 2026-10-06) |
| July 3, 2025 | QS | S 10b5-1 | 508,832 | $7.02 | $3,572,001 | 269,074 Indirect | -65.41% | Disposed | -33.8% (price as of 2026-10-06) |
| July 3, 2025 | QS | S 10b5-1 | 177,938 | $7.02 | $1,249,125 | 81,364 Indirect | -68.62% | Disposed | -33.8% (price as of 2026-10-06) |
| July 3, 2025 | QS | S 10b5-1 | 177,938 | $7.02 | $1,249,125 | 81,364 Indirect | -68.62% | Disposed | -33.8% (price as of 2026-10-06) |
| May 22, 2025 | QS | S 10b5-1 | 61,523 | $3.94 | $242,401 | 231,530 Direct | -20.99% | Disposed | 18.0% (price as of 2026-10-06) |
| May 13, 2025 | QS | A | 64,766 | · | · | 293,053 Direct | +28.37% | Acquired | (price as of 2026-10-06) |
| Feb. 21, 2025 | QS | S 10b5-1 | 12,908 | $5.22 | $67,380 | 228,287 Direct | -5.35% | Disposed | -10.9% (price as of 2026-10-06) |
| Nov. 21, 2024 | QS | S 10b5-1 | 12,908 | $5.04 | $65,056 | 241,195 Direct | -5.08% | Disposed | -7.7% (price as of 2026-10-06) |
| Aug. 21, 2024 | QS | S 10b5-1 | 12,908 | $5.96 | $76,932 | 254,103 Direct | -4.83% | Disposed | -22.0% (price as of 2026-10-06) |
| July 1, 2024 | QS | S 10b5-1 | 25,816 | $4.87 | $125,724 | 267,011 Direct | -8.82% | Disposed | -4.5% (price as of 2026-10-06) |
| April 5, 2024 | QS | A | 34,663 | · | · | 292,827 Direct | +13.43% | Acquired | (price as of 2026-10-06) |
| April 6, 2023 | QS | A | 30,201 | · | · | 258,164 Direct | +13.25% | Acquired | (price as of 2026-10-06) |
| March 6, 2023 | QS | G | 590,872 | · | · | 1,392,072 Indirect | +73.75% | Acquired | (price as of 2026-10-06) |
| March 6, 2023 | QS | G | 722,174 | · | · | 1,523,374 Indirect | +90.14% | Acquired | (price as of 2026-10-06) |
| March 6, 2023 | QS | G | 656,523 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| March 6, 2023 | QS | G | 656,523 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-06) |
| Jan. 24, 2023 | QS | A | 227,963 | · | · | 227,963 Direct | · | Acquired | (price as of 2026-10-06) |
| Aug. 16, 2022 | QS | S 10b5-1 | 8,180 | $12.84 | $105,031 | 259,302 Indirect | -3.06% | Disposed | -63.8% (price as of 2026-10-06) |
| Aug. 16, 2022 | QS | S 10b5-1 | 8,180 | $12.84 | $105,031 | 259,302 Indirect | -3.06% | Disposed | -63.8% (price as of 2026-10-06) |
| Aug. 16, 2022 | QS | S 10b5-1 | 24,539 | $12.84 | $315,081 | 777,906 Indirect | -3.06% | Disposed | -63.8% (price as of 2026-10-06) |
| Aug. 15, 2022 | QS | S 10b5-1 | 54,060 | $13.30 | $718,998 | 267,482 Indirect | -16.81% | Disposed | -65.0% (price as of 2026-10-06) |
| Aug. 15, 2022 | QS | S 10b5-1 | 54,060 | $13.30 | $718,998 | 267,482 Indirect | -16.81% | Disposed | -65.0% (price as of 2026-10-06) |
| Aug. 15, 2022 | QS | S 10b5-1 | 162,181 | $13.30 | $2,157,007 | 802,445 Indirect | -16.81% | Disposed | -65.0% (price as of 2026-10-06) |
| June 9, 2022 | QS | C | 289,382 | · | · | 801,200 Indirect | -26.53% | Disposed | (price as of 2026-10-06) |
| June 9, 2022 | QS | C | 289,382 | · | · | 801,200 Indirect | -26.53% | Disposed | (price as of 2026-10-06) |
| June 9, 2022 | QS | C | 818,146 | · | · | 6,374,969 Indirect | -11.37% | Disposed | (price as of 2026-10-06) |
| June 9, 2022 | QS | C | 289,382 | · | · | 321,542 Indirect | +899.82% | Acquired | (price as of 2026-10-06) |
| June 9, 2022 | QS | C | 289,382 | · | · | 321,542 Indirect | +899.82% | Acquired | (price as of 2026-10-06) |
| June 9, 2022 | QS | C | 818,146 | · | · | 964,626 Indirect | +558.54% | Acquired | (price as of 2026-10-06) |
| June 8, 2022 | QS | S 10b5-1 | 31,120 | $12.02 | $374,062 | 32,160 Indirect | -49.18% | Disposed | -61.3% (price as of 2026-10-06) |
| June 8, 2022 | QS | S 10b5-1 | 31,120 | $12.02 | $374,062 | 32,160 Indirect | -49.18% | Disposed | -61.3% (price as of 2026-10-06) |
| June 8, 2022 | QS | S 10b5-1 | 93,360 | $12.02 | $1,122,187 | 146,480 Indirect | -38.93% | Disposed | -61.3% (price as of 2026-10-06) |
| May 25, 2022 | QS | S 10b5-1 | 31,120 | $11.04 | $343,565 | 63,280 Indirect | -32.97% | Disposed | -57.9% (price as of 2026-10-06) |
| May 25, 2022 | QS | S 10b5-1 | 31,120 | $11.04 | $343,565 | 63,280 Indirect | -32.97% | Disposed | -57.9% (price as of 2026-10-06) |
| May 25, 2022 | QS | S 10b5-1 | 93,360 | $11.04 | $1,030,694 | 239,840 Indirect | -28.02% | Disposed | -57.9% (price as of 2026-10-06) |
| April 8, 2022 | QS | S 10b5-1 | 31,120 | $18.24 | $567,629 | 94,400 Indirect | -24.79% | Disposed | -74.5% (price as of 2026-10-06) |
| April 8, 2022 | QS | S 10b5-1 | 31,120 | $18.24 | $567,629 | 94,400 Indirect | -24.79% | Disposed | -74.5% (price as of 2026-10-06) |
| April 8, 2022 | QS | S 10b5-1 | 93,960 | $18.24 | $1,713,830 | 333,200 Indirect | -22.00% | Disposed | -74.5% (price as of 2026-10-06) |
| March 21, 2022 | QS | S 10b5-1 | 31,120 | $16.84 | $524,061 | 125,520 Indirect | -19.87% | Disposed | -72.4% (price as of 2026-10-06) |
| March 21, 2022 | QS | S 10b5-1 | 31,120 | $16.84 | $524,061 | 125,520 Indirect | -19.87% | Disposed | -72.4% (price as of 2026-10-06) |
| March 21, 2022 | QS | S 10b5-1 | 93,960 | $16.84 | $1,582,286 | 426,560 Indirect | -18.05% | Disposed | -72.4% (price as of 2026-10-06) |
| Feb. 1, 2022 | QS | S 10b5-1 | 14,964 | $17.35 | $259,625 | 156,640 Indirect | -8.72% | Disposed | -73.2% (price as of 2026-10-06) |
| Feb. 1, 2022 | QS | S 10b5-1 | 16,156 | $16.72 | $270,128 | 171,604 Indirect | -8.60% | Disposed | -72.2% (price as of 2026-10-06) |
| Feb. 1, 2022 | QS | S 10b5-1 | 14,962 | $17.35 | $259,591 | 156,640 Indirect | -8.72% | Disposed | -73.2% (price as of 2026-10-06) |
| Feb. 1, 2022 | QS | S 10b5-1 | 16,158 | $16.72 | $270,162 | 171,602 Indirect | -8.61% | Disposed | -72.2% (price as of 2026-10-06) |
| Feb. 1, 2022 | QS | S 10b5-1 | 44,756 | $17.35 | $776,517 | 519,920 Indirect | -7.93% | Disposed | -73.2% (price as of 2026-10-06) |
| Feb. 1, 2022 | QS | S 10b5-1 | 48,604 | $16.72 | $812,659 | 564,676 Indirect | -7.93% | Disposed | -72.2% (price as of 2026-10-06) |
| Jan. 12, 2022 | QS | S 10b5-1 | 350 | $21.69 | $7,592 | 187,760 Indirect | -0.19% | Disposed | -78.6% (price as of 2026-10-06) |
| Jan. 12, 2022 | QS | S 10b5-1 | 30,770 | $21.07 | $648,324 | 188,110 Indirect | -14.06% | Disposed | -77.9% (price as of 2026-10-06) |
| Jan. 12, 2022 | QS | S 10b5-1 | 350 | $21.69 | $7,592 | 187,760 Indirect | -0.19% | Disposed | -78.6% (price as of 2026-10-06) |
| Jan. 12, 2022 | QS | S 10b5-1 | 30,770 | $21.07 | $648,324 | 188,110 Indirect | -14.06% | Disposed | -77.9% (price as of 2026-10-06) |
| Jan. 12, 2022 | QS | S 10b5-1 | 1,000 | $21.70 | $21,700 | 613,280 Indirect | -0.16% | Disposed | -78.6% (price as of 2026-10-06) |
| Jan. 12, 2022 | QS | S 10b5-1 | 92,360 | $21.07 | $1,946,025 | 614,280 Indirect | -13.07% | Disposed | -77.9% (price as of 2026-10-06) |
| Dec. 27, 2021 | QS | G | 200,000 | · | · | 706,640 Indirect | -22.06% | Disposed | (price as of 2026-10-06) |
| Dec. 7, 2021 | QS | S 10b5-1 | 100 | $26.66 | $2,666 | 218,880 Indirect | -0.05% | Disposed | -82.6% (price as of 2026-10-06) |
| Dec. 7, 2021 | QS | S 10b5-1 | 31,020 | $26.23 | $813,655 | 218,980 Indirect | -12.41% | Disposed | -82.3% (price as of 2026-10-06) |
| Dec. 7, 2021 | QS | S 10b5-1 | 100 | $26.66 | $2,666 | 218,880 Indirect | -0.05% | Disposed | -82.6% (price as of 2026-10-06) |
| Dec. 7, 2021 | QS | S 10b5-1 | 31,020 | $26.23 | $813,655 | 218,980 Indirect | -12.41% | Disposed | -82.3% (price as of 2026-10-06) |
| Dec. 7, 2021 | QS | S 10b5-1 | 150 | $26.68 | $4,002 | 906,640 Indirect | -0.02% | Disposed | -82.6% (price as of 2026-10-06) |
| Dec. 7, 2021 | QS | S 10b5-1 | 93,210 | $26.23 | $2,444,898 | 906,790 Indirect | -9.32% | Disposed | -82.3% (price as of 2026-10-06) |
| Sept. 15, 2021 | QS | C | 1,000,000 | · | · | 6,890,327 Direct | -12.67% | Disposed | (price as of 2026-10-06) |
| Sept. 15, 2021 | QS | C | 1,000,000 | · | · | 1,000,000 Direct | · | Acquired | (price as of 2026-10-06) |
| Aug. 2, 2021 | QS | S | 84,029 | $23.38 | $1,964,598 | 0 Indirect | -100.00% | Disposed | -80.1% (price as of 2026-10-06) |
| Aug. 2, 2021 | QS | S | 215,971 | $22.49 | $4,857,188 | 84,029 Indirect | -71.99% | Disposed | -79.3% (price as of 2026-10-06) |
| July 30, 2021 | QS | S | 200,000 | $22.61 | $4,522,000 | 300,000 Indirect | -40.00% | Disposed | -79.4% (price as of 2026-10-06) |
| July 22, 2021 | QS | C | 250,000 | · | · | 1,090,582 Indirect | -18.65% | Disposed | (price as of 2026-10-06) |
| July 22, 2021 | QS | C | 250,000 | · | · | 1,090,582 Indirect | -18.65% | Disposed | (price as of 2026-10-06) |
| July 22, 2021 | QS | C | 500,000 | · | · | 7,890,327 Direct | -5.96% | Disposed | (price as of 2026-10-06) |
| July 22, 2021 | QS | C | 250,000 | · | · | 250,000 Indirect | · | Acquired | (price as of 2026-10-06) |
| July 22, 2021 | QS | C | 250,000 | · | · | 250,000 Indirect | · | Acquired | (price as of 2026-10-06) |
| July 22, 2021 | QS | C | 500,000 | · | · | 500,000 Direct | · | Acquired | (price as of 2026-10-06) |
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 |
|---|---|---|---|---|---|---|---|
| Oct. 24, 2025 | QS | Class B Common Stock | Class A Common Stock | · | · | 480,878 | Disposed |
| Oct. 24, 2025 | QS | Class B Common Stock | Class A Common Stock | · | · | 250,000 | Disposed |
| Oct. 24, 2025 | QS | Class B Common Stock | Class A Common Stock | · | · | 250,000 | Disposed |
| July 25, 2025 | QS | Class B Common Stock | Class A Common Stock | · | · | 260,739 | Disposed |
| July 25, 2025 | QS | Class B Common Stock | Class A Common Stock | · | · | 118,636 | Disposed |
| July 25, 2025 | QS | Class B Common Stock | Class A Common Stock | · | · | 118,636 | Disposed |
| March 6, 2023 | QS | Class B Common Stock | Class A Common Stock | · | · | 590,872 | Acquired |
| March 6, 2023 | QS | Class B Common Stock | Class A Common Stock | · | · | 722,174 | Acquired |
| March 6, 2023 | QS | Class B Common Stock | Class A Common Stock | · | · | 656,523 | Disposed |
| March 6, 2023 | QS | Class B Common Stock | Class A Common Stock | · | · | 656,523 | Disposed |
| June 9, 2022 | QS | Class B Common Stock | Class A Common Stock | · | · | 289,382 | Disposed |
| June 9, 2022 | QS | Class B Common Stock | Class A Common Stock | · | · | 289,382 | Disposed |
| June 9, 2022 | QS | Class B Common Stock | Class A Common Stock | · | · | 818,146 | Disposed |
| Sept. 15, 2021 | QS | Class B Common Stock | Class A Common Stock | · | · | 1,000,000 | Disposed |
| July 22, 2021 | QS | Class B Common Stock | Class A Common Stock | · | · | 250,000 | Disposed |
| July 22, 2021 | QS | Class B Common Stock | Class A Common Stock | · | · | 250,000 | Disposed |
| July 22, 2021 | QS | Class B Common Stock | Class A Common Stock | · | · | 500,000 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 5 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Dec. 7, 2020 | QS | Class B Common Stock | 1,340,582 | Indirect |
| Dec. 7, 2020 | QS | Class B Common Stock | 1,340,582 | Indirect |
| Dec. 7, 2020 | QS | Class B Common Stock | 1,206,525 | Indirect |
| Dec. 7, 2020 | QS | Class B Common Stock | 1,206,525 | Indirect |
| Dec. 7, 2020 | QS | Class B Common Stock | 8,390,327 | Direct |