Kevin Bitterman
CIK 1591747 · View on SEC EDGAR ↗
Insider
First SEC filing: Aug. 17, 2023 · Latest: Aug. 17, 2023
On this page
Insider at
Insider transactions
0 buys (P)
19 sells (S)
Net:
$-16,858,638
+ 14 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
14 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Dec. 16, 2025 | IRON | S | 14,359 | $91.24 | $1,310,115 | 14,161 Indirect | -50.35% | Disposed | -13.0% (price as of 2026-08-20) |
| Dec. 16, 2025 | IRON | S | 18,666 | $91.24 | $1,703,086 | 337,698 Indirect | -5.24% | Disposed | -13.0% (price as of 2026-08-20) |
| Dec. 16, 2025 | IRON | S | 35,898 | $91.24 | $3,275,334 | 349,603 Indirect | -9.31% | Disposed | -13.0% (price as of 2026-08-20) |
| Dec. 15, 2025 | IRON | S | 7,000 | $91.87 | $643,090 | 0 Direct | -100.00% | Disposed | -13.6% (price as of 2026-08-20) |
| Dec. 15, 2025 | IRON | S | 1,572 | $92.01 | $144,640 | 28,520 Indirect | -5.22% | Disposed | -13.7% (price as of 2026-08-20) |
| Dec. 15, 2025 | IRON | S | 11,427 | $91.18 | $1,041,914 | 30,092 Indirect | -27.52% | Disposed | -12.9% (price as of 2026-08-20) |
| Dec. 15, 2025 | IRON | S | 2,049 | $92.01 | $188,528 | 356,364 Indirect | -0.57% | Disposed | -13.7% (price as of 2026-08-20) |
| Dec. 15, 2025 | IRON | S | 14,811 | $91.18 | $1,350,467 | 358,413 Indirect | -3.97% | Disposed | -12.9% (price as of 2026-08-20) |
| Dec. 15, 2025 | IRON | S | 3,921 | $92.01 | $360,771 | 385,501 Indirect | -1.01% | Disposed | -13.7% (price as of 2026-08-20) |
| Dec. 15, 2025 | IRON | S | 28,913 | $91.18 | $2,636,287 | 389,422 Indirect | -6.91% | Disposed | -12.9% (price as of 2026-08-20) |
| Dec. 12, 2025 | IRON | S | 1,371 | $93.80 | $128,600 | 41,519 Indirect | -3.20% | Disposed | -15.4% (price as of 2026-08-20) |
| Dec. 12, 2025 | IRON | S | 1,540 | $92.58 | $142,573 | 42,890 Indirect | -3.47% | Disposed | -14.3% (price as of 2026-08-20) |
| Dec. 12, 2025 | IRON | S | 6,570 | $92.05 | $604,768 | 44,430 Indirect | -12.88% | Disposed | -13.8% (price as of 2026-08-20) |
| Dec. 12, 2025 | IRON | S | 1,793 | $93.80 | $168,183 | 373,224 Indirect | -0.48% | Disposed | -15.4% (price as of 2026-08-20) |
| Dec. 12, 2025 | IRON | S | 2,005 | $92.58 | $185,623 | 375,017 Indirect | -0.53% | Disposed | -14.3% (price as of 2026-08-20) |
| Dec. 12, 2025 | IRON | S | 8,527 | $92.05 | $784,910 | 377,022 Indirect | -2.21% | Disposed | -13.8% (price as of 2026-08-20) |
| Dec. 12, 2025 | IRON | S | 3,446 | $93.80 | $323,235 | 418,335 Indirect | -0.82% | Disposed | -15.4% (price as of 2026-08-20) |
| Dec. 12, 2025 | IRON | S | 3,852 | $92.58 | $356,618 | 421,781 Indirect | -0.91% | Disposed | -14.3% (price as of 2026-08-20) |
| Dec. 12, 2025 | IRON | S | 16,403 | $92.05 | $1,509,896 | 425,633 Indirect | -3.71% | Disposed | -13.8% (price as of 2026-08-20) |
| Jan. 23, 2024 | IRON | S | 20,000 | $67.65 | $1,353,000 | 198,326 Indirect | -9.16% | Disposed | 17.3% (price as of 2026-08-20) |
| Jan. 23, 2024 | IRON | S | 82,500 | $67.65 | $5,581,125 | 703,660 Indirect | -10.49% | Disposed | 17.3% (price as of 2026-08-20) |
| Jan. 10, 2024 | IRON | S | 20,000 | $64.00 | $1,280,000 | 786,160 Indirect | -2.48% | Disposed | 24.0% (price as of 2026-08-20) |
| Dec. 14, 2023 | IRON | S | 120 | $59.74 | $7,169 | 806,160 Indirect | -0.01% | Disposed | 32.9% (price as of 2026-08-20) |
| Dec. 14, 2023 | IRON | S | 20,429 | $58.27 | $1,190,398 | 806,280 Indirect | -2.47% | Disposed | 36.2% (price as of 2026-08-20) |
| Dec. 13, 2023 | IRON | S | 40 | $60.50 | $2,420 | 826,709 Indirect | 0.00% | Disposed | 31.2% (price as of 2026-08-20) |
| Dec. 13, 2023 | IRON | S | 3,508 | $59.99 | $210,445 | 826,749 Indirect | -0.42% | Disposed | 32.3% (price as of 2026-08-20) |
| Dec. 12, 2023 | IRON | S | 6,599 | $65.77 | $434,016 | 830,257 Indirect | -0.79% | Disposed | 20.7% (price as of 2026-08-20) |
| Dec. 12, 2023 | IRON | S | 18,615 | $65.10 | $1,211,836 | 836,856 Indirect | -2.18% | Disposed | 21.9% (price as of 2026-08-20) |
| Dec. 12, 2023 | IRON | S | 688 | $63.78 | $43,881 | 855,471 Indirect | -0.08% | Disposed | 24.5% (price as of 2026-08-20) |
| Dec. 12, 2023 | IRON | S | 665 | $62.90 | $41,828 | 856,159 Indirect | -0.08% | Disposed | 26.2% (price as of 2026-08-20) |
| Dec. 12, 2023 | IRON | S | 4,155 | $62.42 | $259,355 | 856,824 Indirect | -0.48% | Disposed | 27.2% (price as of 2026-08-20) |
| Dec. 12, 2023 | IRON | S | 422 | $60.99 | $25,738 | 860,979 Indirect | -0.05% | Disposed | 30.2% (price as of 2026-08-20) |
| Dec. 12, 2023 | IRON | S | 20,823 | $59.87 | $1,246,673 | 861,401 Indirect | -2.36% | Disposed | 32.6% (price as of 2026-08-20) |
| Aug. 15, 2023 | IRON | S | 72,931 | $52.40 | $3,821,584 | 882,224 Indirect | -7.64% | Disposed | 51.5% (price as of 2026-08-20) |
| May 22, 2017 | EDIT | S | 1,000,000 | $17.00 | $17,000,000 | 2,797,144 Indirect | -26.34% | Disposed | -81.8% (price as of 2026-08-20) |
| Dec. 7, 2016 | EDIT | S | 75,000 | $15.82 | $1,186,500 | 3,797,144 Indirect | -1.94% | Disposed | -80.4% (price as of 2026-08-20) |
| Dec. 6, 2016 | EDIT | S | 50,000 | $15.87 | $793,500 | 3,872,144 Indirect | -1.27% | Disposed | -80.5% (price as of 2026-08-20) |
| Dec. 5, 2016 | EDIT | S | 80,000 | $15.74 | $1,259,200 | 3,922,144 Indirect | -2.00% | Disposed | -80.3% (price as of 2026-08-20) |
| Nov. 23, 2016 | EDIT | S | 21,480 | $15.71 | $337,451 | 4,002,144 Indirect | -0.53% | Disposed | -80.3% (price as of 2026-08-20) |
| Nov. 22, 2016 | EDIT | S | 12,819 | $15.77 | $202,156 | 4,023,624 Indirect | -0.32% | Disposed | -80.3% (price as of 2026-08-20) |
| Nov. 16, 2016 | EDIT | S | 30,830 | $16.30 | $502,529 | 4,036,443 Indirect | -0.76% | Disposed | -81.0% (price as of 2026-08-20) |
| Nov. 15, 2016 | EDIT | S | 498 | $17.78 | $8,854 | 4,067,273 Indirect | -0.01% | Disposed | -82.6% (price as of 2026-08-20) |
| Nov. 15, 2016 | EDIT | S | 30,367 | $16.55 | $502,574 | 4,067,771 Indirect | -0.74% | Disposed | -81.3% (price as of 2026-08-20) |
| Nov. 14, 2016 | EDIT | S | 58,035 | $17.16 | $995,881 | 4,098,138 Indirect | -1.40% | Disposed | -81.9% (price as of 2026-08-20) |
| Sept. 8, 2016 | EDIT | S | 500,000 | $16.80 | $8,400,000 | 4,156,173 Indirect | -10.74% | Disposed | -81.5% (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 |
|---|---|---|---|---|---|---|---|
| June 18, 2026 | IRON | Stock Option (Right to Buy) | Common Stock (6,212) | $70.79 | June 17, 2036 | 6,212 | Acquired |
| Dec. 15, 2025 | IRON | Stock Option (Right to Buy) | Common Stock (7,000) | $13.50 | Dec. 28, 2032 | 7,000 | Disposed |
| June 11, 2025 | IRON | Stock Option (Right to Buy) | Common Stock (10,000) | $50.86 | June 10, 2035 | 10,000 | Acquired |
| June 12, 2024 | IRON | Stock Option (Right to Buy) | Common Stock (10,000) | $38.85 | June 11, 2034 | 10,000 | Acquired |
| June 9, 2023 | IRON | Stock Option (Right to Buy) | Common Stock (7,136) | $45.69 | June 8, 2033 | 7,136 | Acquired |
| Dec. 29, 2022 | IRON | Stock Option (Right to Buy) | Common Stock (7,000) | $13.50 | Dec. 28, 2032 | 7,000 | Acquired |
| June 15, 2017 | EDIT | Stock Option (right to buy) | Common Stock (11,538) | $15.63 | June 14, 2027 | 11,538 | Acquired |
| Feb. 8, 2016 | EDIT | Series B Preferred Stock | Common Stock (85,469) | — | — | 222,222 | Disposed |
| Feb. 8, 2016 | EDIT | Series A-2 Preferred Stock | Common Stock (2,021,269) | — | — | 5,255,300 | Disposed |
| Feb. 8, 2016 | EDIT | Series A-1 Preferred Stock | Common Stock (2,549,435) | — | — | 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→ Common Stock (2,549,435) | 2,549,435 | Indirect |
| Feb. 2, 2016 | EDIT | Series A-2 Preferred Stock→ Common Stock (2,021,269) | 2,021,269 | Indirect |
| Feb. 2, 2016 | EDIT | Series B Preferred Stock→ Common Stock (85,469) | 85,469 | Indirect |