Kevin Bitterman
Insider
First SEC filing: Aug. 17, 2023 · Latest: Aug. 17, 2023
Insider at
Insider transactions
0 buys (P)
62 sells (S)
Net: $-37,690,863
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. 11, 2026 | IRON | M | 7,136 | $45.69 | $326,044 | 7,136 Direct | · | Acquired | 38.6% (price as of 2026-10-05) |
| Sept. 11, 2026 | IRON | M | 10,000 | $38.85 | $388,500 | 17,136 Direct | +140.13% | Acquired | 63.0% (price as of 2026-10-05) |
| Sept. 11, 2026 | IRON | M | 10,000 | $50.86 | $508,600 | 27,136 Direct | +58.36% | Acquired | 24.5% (price as of 2026-10-05) |
| Sept. 11, 2026 | IRON | S | 27,136 | $70.11 | $1,902,505 | 0 Direct | -100.00% | Disposed | -9.7% (price as of 2026-10-05) |
| Sept. 11, 2026 | IRON | M | 7,136 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Sept. 11, 2026 | IRON | M | 10,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Sept. 11, 2026 | IRON | M | 10,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Sept. 4, 2026 | IRON | S 10b5-1 | 912 | $79.96 | $72,924 | 318,866 Indirect | -0.29% | Disposed | -20.8% (price as of 2026-10-05) |
| Sept. 4, 2026 | IRON | S 10b5-1 | 759 | $79.96 | $60,690 | 312,230 Indirect | -0.24% | Disposed | -20.8% (price as of 2026-10-05) |
| Sept. 4, 2026 | IRON | S 10b5-1 | 18 | $79.96 | $1,439 | 13,427 Indirect | -0.13% | Disposed | -20.8% (price as of 2026-10-05) |
| Sept. 3, 2026 | IRON | S 10b5-1 | 2,810 | $79.98 | $224,744 | 319,778 Indirect | -0.87% | Disposed | -20.8% (price as of 2026-10-05) |
| Sept. 3, 2026 | IRON | S 10b5-1 | 2,339 | $79.98 | $187,073 | 312,989 Indirect | -0.74% | Disposed | -20.8% (price as of 2026-10-05) |
| Sept. 3, 2026 | IRON | S 10b5-1 | 54 | $79.98 | $4,319 | 13,445 Indirect | -0.40% | Disposed | -20.8% (price as of 2026-10-05) |
| Sept. 2, 2026 | IRON | S 10b5-1 | 26,542 | $80.17 | $2,127,872 | 322,598 Indirect | -7.60% | Disposed | -21.0% (price as of 2026-10-05) |
| Sept. 2, 2026 | IRON | S 10b5-1 | 22,090 | $80.17 | $1,770,955 | 315,337 Indirect | -6.55% | Disposed | -21.0% (price as of 2026-10-05) |
| Sept. 2, 2026 | IRON | S 10b5-1 | 511 | $80.17 | $40,967 | 13,501 Indirect | -3.65% | Disposed | -21.0% (price as of 2026-10-05) |
| Sept. 2, 2026 | IRON | S 10b5-1 | 10 | $80.98 | $810 | 322,588 Indirect | 0.00% | Disposed | -21.8% (price as of 2026-10-05) |
| Sept. 2, 2026 | IRON | S 10b5-1 | 9 | $80.98 | $729 | 315,328 Indirect | 0.00% | Disposed | -21.8% (price as of 2026-10-05) |
| Sept. 2, 2026 | IRON | S 10b5-1 | 2 | $80.98 | $162 | 13,499 Indirect | -0.01% | Disposed | -21.8% (price as of 2026-10-05) |
| Sept. 1, 2026 | IRON | S 10b5-1 | 70 | $79.95 | $5,596 | 349,140 Indirect | -0.02% | Disposed | -20.8% (price as of 2026-10-05) |
| Sept. 1, 2026 | IRON | S 10b5-1 | 58 | $79.95 | $4,637 | 337,427 Indirect | -0.02% | Disposed | -20.8% (price as of 2026-10-05) |
| Sept. 1, 2026 | IRON | S 10b5-1 | 1 | $79.95 | $80 | 14,012 Indirect | -0.01% | Disposed | -20.8% (price as of 2026-10-05) |
| June 18, 2026 | IRON | A | 6,212 | · | · | 6,212 Direct | · | Acquired | (price as of 2026-10-05) |
| Dec. 17, 2025 | IRON | S | 393 | $91.47 | $35,948 | 349,210 Indirect | -0.11% | Disposed | -30.8% (price as of 2026-10-05) |
| Dec. 17, 2025 | IRON | S | 213 | $91.47 | $19,483 | 337,485 Indirect | -0.06% | Disposed | -30.8% (price as of 2026-10-05) |
| Dec. 17, 2025 | IRON | S | 148 | $91.47 | $13,538 | 14,013 Indirect | -1.05% | Disposed | -30.8% (price as of 2026-10-05) |
| Dec. 16, 2025 | IRON | S | 14,359 | $91.24 | $1,310,115 | 14,161 Indirect | -50.35% | Disposed | -30.6% (price as of 2026-10-05) |
| Dec. 16, 2025 | IRON | S | 18,666 | $91.24 | $1,703,086 | 337,698 Indirect | -5.24% | Disposed | -30.6% (price as of 2026-10-05) |
| Dec. 16, 2025 | IRON | S | 35,898 | $91.24 | $3,275,334 | 349,603 Indirect | -9.31% | Disposed | -30.6% (price as of 2026-10-05) |
| Dec. 15, 2025 | IRON | M | 7,000 | $13.50 | $94,500 | 7,000 Direct | · | Acquired | 369.1% (price as of 2026-10-05) |
| Dec. 15, 2025 | IRON | M | 7,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Dec. 15, 2025 | IRON | S | 7,000 | $91.87 | $643,090 | 0 Direct | -100.00% | Disposed | -31.1% (price as of 2026-10-05) |
| Dec. 15, 2025 | IRON | S | 1,572 | $92.01 | $144,640 | 28,520 Indirect | -5.22% | Disposed | -31.2% (price as of 2026-10-05) |
| Dec. 15, 2025 | IRON | S | 11,427 | $91.18 | $1,041,914 | 30,092 Indirect | -27.52% | Disposed | -30.5% (price as of 2026-10-05) |
| Dec. 15, 2025 | IRON | S | 2,049 | $92.01 | $188,528 | 356,364 Indirect | -0.57% | Disposed | -31.2% (price as of 2026-10-05) |
| Dec. 15, 2025 | IRON | S | 14,811 | $91.18 | $1,350,467 | 358,413 Indirect | -3.97% | Disposed | -30.5% (price as of 2026-10-05) |
| Dec. 15, 2025 | IRON | S | 3,921 | $92.01 | $360,771 | 385,501 Indirect | -1.01% | Disposed | -31.2% (price as of 2026-10-05) |
| Dec. 15, 2025 | IRON | S | 28,913 | $91.18 | $2,636,287 | 389,422 Indirect | -6.91% | Disposed | -30.5% (price as of 2026-10-05) |
| Dec. 12, 2025 | IRON | S | 1,371 | $93.80 | $128,600 | 41,519 Indirect | -3.20% | Disposed | -32.5% (price as of 2026-10-05) |
| Dec. 12, 2025 | IRON | S | 1,540 | $92.58 | $142,573 | 42,890 Indirect | -3.47% | Disposed | -31.6% (price as of 2026-10-05) |
| Dec. 12, 2025 | IRON | S | 6,570 | $92.05 | $604,768 | 44,430 Indirect | -12.88% | Disposed | -31.2% (price as of 2026-10-05) |
| Dec. 12, 2025 | IRON | S | 1,793 | $93.80 | $168,183 | 373,224 Indirect | -0.48% | Disposed | -32.5% (price as of 2026-10-05) |
| Dec. 12, 2025 | IRON | S | 2,005 | $92.58 | $185,623 | 375,017 Indirect | -0.53% | Disposed | -31.6% (price as of 2026-10-05) |
| Dec. 12, 2025 | IRON | S | 8,527 | $92.05 | $784,910 | 377,022 Indirect | -2.21% | Disposed | -31.2% (price as of 2026-10-05) |
| Dec. 12, 2025 | IRON | S | 3,446 | $93.80 | $323,235 | 418,335 Indirect | -0.82% | Disposed | -32.5% (price as of 2026-10-05) |
| Dec. 12, 2025 | IRON | S | 3,852 | $92.58 | $356,618 | 421,781 Indirect | -0.91% | Disposed | -31.6% (price as of 2026-10-05) |
| Dec. 12, 2025 | IRON | S | 16,403 | $92.05 | $1,509,896 | 425,633 Indirect | -3.71% | Disposed | -31.2% (price as of 2026-10-05) |
| Oct. 17, 2025 | IRON | S | 1,125 | $84.89 | $95,501 | 475,911 Indirect | -0.24% | Disposed | -25.4% (price as of 2026-10-05) |
| Oct. 17, 2025 | IRON | S | 1,125 | $84.89 | $95,501 | 419,424 Indirect | -0.27% | Disposed | -25.4% (price as of 2026-10-05) |
| Oct. 17, 2025 | IRON | S | 3,000 | $86.13 | $258,390 | 472,911 Indirect | -0.63% | Disposed | -26.5% (price as of 2026-10-05) |
| Oct. 17, 2025 | IRON | S | 3,000 | $86.13 | $258,390 | 416,424 Indirect | -0.72% | Disposed | -26.5% (price as of 2026-10-05) |
| Oct. 17, 2025 | IRON | S | 5,066 | $87.37 | $442,616 | 467,845 Indirect | -1.07% | Disposed | -27.5% (price as of 2026-10-05) |
| Oct. 17, 2025 | IRON | S | 5,065 | $87.37 | $442,529 | 411,359 Indirect | -1.22% | Disposed | -27.5% (price as of 2026-10-05) |
| Oct. 17, 2025 | IRON | S | 13,014 | $88.91 | $1,157,075 | 454,831 Indirect | -2.78% | Disposed | -28.8% (price as of 2026-10-05) |
| Oct. 17, 2025 | IRON | S | 13,014 | $88.91 | $1,157,075 | 398,345 Indirect | -3.16% | Disposed | -28.8% (price as of 2026-10-05) |
| Oct. 17, 2025 | IRON | S | 2,251 | $89.70 | $201,915 | 452,580 Indirect | -0.49% | Disposed | -29.4% (price as of 2026-10-05) |
| Oct. 17, 2025 | IRON | S | 2,251 | $89.70 | $201,915 | 396,094 Indirect | -0.57% | Disposed | -29.4% (price as of 2026-10-05) |
| Oct. 17, 2025 | IRON | S | 10,094 | $90.66 | $915,122 | 442,486 Indirect | -2.23% | Disposed | -30.1% (price as of 2026-10-05) |
| Oct. 17, 2025 | IRON | S | 10,095 | $90.66 | $915,213 | 385,999 Indirect | -2.55% | Disposed | -30.1% (price as of 2026-10-05) |
| Oct. 17, 2025 | IRON | S | 450 | $91.88 | $41,346 | 442,036 Indirect | -0.10% | Disposed | -31.1% (price as of 2026-10-05) |
| Oct. 17, 2025 | IRON | S | 450 | $91.88 | $41,346 | 385,549 Indirect | -0.12% | Disposed | -31.1% (price as of 2026-10-05) |
| Oct. 16, 2025 | IRON | S | 1,425 | $77.11 | $109,882 | 477,036 Indirect | -0.30% | Disposed | -17.9% (price as of 2026-10-05) |
| Oct. 15, 2025 | IRON | S | 19,542 | $77.16 | $1,507,861 | 481,079 Indirect | -3.90% | Disposed | -17.9% (price as of 2026-10-05) |
| Oct. 15, 2025 | IRON | S | 2,618 | $77.76 | $203,576 | 478,461 Indirect | -0.54% | Disposed | -18.6% (price as of 2026-10-05) |
| Oct. 8, 2025 | IRON | S | 8,219 | $68.26 | $561,029 | 564,363 Indirect | -1.44% | Disposed | -7.2% (price as of 2026-10-05) |
| Oct. 8, 2025 | IRON | S | 12,386 | $69.31 | $858,474 | 551,977 Indirect | -2.19% | Disposed | -8.6% (price as of 2026-10-05) |
| Oct. 8, 2025 | IRON | S | 25,400 | $70.54 | $1,791,716 | 526,577 Indirect | -4.60% | Disposed | -10.2% (price as of 2026-10-05) |
| Oct. 8, 2025 | IRON | S | 12,689 | $71.51 | $907,390 | 513,888 Indirect | -2.41% | Disposed | -11.4% (price as of 2026-10-05) |
| Oct. 8, 2025 | IRON | S | 13,267 | $72.39 | $960,398 | 500,621 Indirect | -2.58% | Disposed | -12.5% (price as of 2026-10-05) |
| Oct. 7, 2025 | IRON | S | 11,378 | $68.01 | $773,818 | 579,243 Indirect | -1.93% | Disposed | -6.9% (price as of 2026-10-05) |
| Oct. 7, 2025 | IRON | S | 6,661 | $69.01 | $459,676 | 572,582 Indirect | -1.15% | Disposed | -8.2% (price as of 2026-10-05) |
| Aug. 22, 2025 | IRON | S 10b5-1 | 2,287 | $61.03 | $139,576 | 590,621 Indirect | -0.39% | Disposed | 3.8% (price as of 2026-10-05) |
| Aug. 14, 2025 | IRON | S 10b5-1 | 7,212 | $60.99 | $439,860 | 592,908 Indirect | -1.20% | Disposed | 3.8% (price as of 2026-10-05) |
| Aug. 13, 2025 | IRON | S 10b5-1 | 24,962 | $61.15 | $1,526,426 | 600,120 Indirect | -3.99% | Disposed | 3.6% (price as of 2026-10-05) |
| Aug. 5, 2025 | IRON | S 10b5-1 | 395 | $60.95 | $24,075 | 625,082 Indirect | -0.06% | Disposed | 3.9% (price as of 2026-10-05) |
| July 30, 2025 | IRON | S 10b5-1 | 8,492 | $61.04 | $518,352 | 625,477 Indirect | -1.34% | Disposed | 3.8% (price as of 2026-10-05) |
| July 24, 2025 | IRON | S | 13,033 | $61.17 | $797,229 | 633,969 Indirect | -2.01% | Disposed | 3.5% (price as of 2026-10-05) |
| July 23, 2025 | IRON | S | 29,837 | $60.97 | $1,819,162 | 647,002 Indirect | -4.41% | Disposed | 3.9% (price as of 2026-10-05) |
| July 18, 2025 | IRON | S | 664 | $61.13 | $40,590 | 676,839 Indirect | -0.10% | Disposed | 3.6% (price as of 2026-10-05) |
| June 11, 2025 | IRON | A | 10,000 | · | · | 10,000 Direct | · | Acquired | (price as of 2026-10-05) |
| June 17, 2024 | IRON | P | 222,223 | $36.00 | $8,000,028 | 420,549 Indirect | +112.05% | Acquired | 75.9% (price as of 2026-10-05) |
| June 12, 2024 | IRON | A | 10,000 | · | · | 10,000 Direct | · | Acquired | (price as of 2026-10-05) |
| March 5, 2024 | IRON | S | 26,157 | $73.50 | $1,922,540 | 677,503 Indirect | -3.72% | Disposed | -13.8% (price as of 2026-10-05) |
| Jan. 23, 2024 | IRON | S | 20,000 | $67.65 | $1,353,000 | 198,326 Indirect | -9.16% | Disposed | -6.4% (price as of 2026-10-05) |
| Jan. 23, 2024 | IRON | S | 82,500 | $67.65 | $5,581,125 | 703,660 Indirect | -10.49% | Disposed | -6.4% (price as of 2026-10-05) |
| Jan. 10, 2024 | IRON | S | 20,000 | $64.00 | $1,280,000 | 786,160 Indirect | -2.48% | Disposed | -1.0% (price as of 2026-10-05) |
| Dec. 14, 2023 | IRON | S | 120 | $59.74 | $7,169 | 806,160 Indirect | -0.01% | Disposed | 6.0% (price as of 2026-10-05) |
| Dec. 14, 2023 | IRON | S | 20,429 | $58.27 | $1,190,398 | 806,280 Indirect | -2.47% | Disposed | 8.7% (price as of 2026-10-05) |
| Dec. 13, 2023 | IRON | S | 40 | $60.50 | $2,420 | 826,709 Indirect | 0.00% | Disposed | 4.7% (price as of 2026-10-05) |
| Dec. 13, 2023 | IRON | S | 3,508 | $59.99 | $210,445 | 826,749 Indirect | -0.42% | Disposed | 5.6% (price as of 2026-10-05) |
| Dec. 12, 2023 | IRON | S | 6,599 | $65.77 | $434,016 | 830,257 Indirect | -0.79% | Disposed | -3.7% (price as of 2026-10-05) |
| Dec. 12, 2023 | IRON | S | 18,615 | $65.10 | $1,211,836 | 836,856 Indirect | -2.18% | Disposed | -2.7% (price as of 2026-10-05) |
| Dec. 12, 2023 | IRON | S | 688 | $63.78 | $43,881 | 855,471 Indirect | -0.08% | Disposed | -0.7% (price as of 2026-10-05) |
| Dec. 12, 2023 | IRON | S | 665 | $62.90 | $41,828 | 856,159 Indirect | -0.08% | Disposed | 0.7% (price as of 2026-10-05) |
| Dec. 12, 2023 | IRON | S | 4,155 | $62.42 | $259,355 | 856,824 Indirect | -0.48% | Disposed | 1.5% (price as of 2026-10-05) |
| Dec. 12, 2023 | IRON | S | 422 | $60.99 | $25,738 | 860,979 Indirect | -0.05% | Disposed | 3.8% (price as of 2026-10-05) |
| Dec. 12, 2023 | IRON | S | 20,823 | $59.87 | $1,246,673 | 861,401 Indirect | -2.36% | Disposed | 5.8% (price as of 2026-10-05) |
| Aug. 15, 2023 | IRON | S | 72,931 | $52.40 | $3,821,584 | 882,224 Indirect | -7.64% | Disposed | 20.9% (price as of 2026-10-05) |
| June 9, 2023 | IRON | A | 7,136 | · | · | 7,136 Direct | · | Acquired | (price as of 2026-10-05) |
| Dec. 29, 2022 | IRON | A | 7,000 | · | · | 7,000 Direct | · | Acquired | (price as of 2026-10-05) |
Showing latest 100 of 118 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 |
|---|---|---|---|---|---|---|---|
| Sept. 11, 2026 | IRON | Stock Option (Right to Buy) | Common Stock | $45.69 | June 8, 2033 | 7,136 | Disposed |
| Sept. 11, 2026 | IRON | Stock Option (Right to Buy) | Common Stock | $38.85 | June 11, 2034 | 10,000 | Disposed |
| Sept. 11, 2026 | IRON | Stock Option (Right to Buy) | Common Stock | $50.86 | June 10, 2035 | 10,000 | Disposed |
| June 18, 2026 | IRON | Stock Option (Right to Buy) | Common Stock | $70.79 | June 17, 2036 | 6,212 | Acquired |
| Dec. 15, 2025 | IRON | Stock Option (Right to Buy) | Common Stock | $13.50 | Dec. 28, 2032 | 7,000 | Disposed |
| June 11, 2025 | IRON | Stock Option (Right to Buy) | Common Stock | $50.86 | June 10, 2035 | 10,000 | Acquired |
| June 12, 2024 | IRON | Stock Option (Right to Buy) | Common Stock | $38.85 | June 11, 2034 | 10,000 | Acquired |
| June 9, 2023 | IRON | Stock Option (Right to Buy) | Common Stock | $45.69 | June 8, 2033 | 7,136 | Acquired |
| Dec. 29, 2022 | IRON | Stock Option (Right to Buy) | Common Stock | $13.50 | Dec. 28, 2032 | 7,000 | Acquired |
| June 15, 2017 | EDIT | Stock Option (right to buy) | Common Stock | $15.63 | June 14, 2027 | 11,538 | Acquired |
| Feb. 8, 2016 | EDIT | Series B Preferred Stock | Common Stock | · | · | 222,222 | Disposed |
| Feb. 8, 2016 | EDIT | Series A-2 Preferred Stock | Common Stock | · | · | 5,255,300 | Disposed |
| Feb. 8, 2016 | EDIT | Series A-1 Preferred Stock | Common Stock | · | · | 6,628,542 | 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 |
|---|---|---|---|---|
| Aug. 17, 2023 | IRON | Common Stock | 51,000 | Indirect |
| Jan. 3, 2023 | IRON | Common Stock | 1,173,482 | Indirect |
| Feb. 2, 2016 | EDIT | Series A-1 Preferred Stock | 2,549,435 | Indirect |
| Feb. 2, 2016 | EDIT | Series A-2 Preferred Stock | 2,021,269 | Indirect |
| Feb. 2, 2016 | EDIT | Series B Preferred Stock | 85,469 | Indirect |