Bert A Frost

CIK 1453096 · View on SEC EDGAR ↗

Insider

First SEC filing: Jan. 5, 2009 · Latest: Jan. 5, 2009

On this page

Insider at

Insider transactions

0 buys (P) 5 sells (S) Net: $-3,984,279 + 65 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

65 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
March 17, 2026 CF S 6,000 $126.00 $756,000 69,472 Direct -7.95% Disposed 0.3% (price as of 2026-08-20)
March 12, 2026 CF S 6,250 $136.69 $854,312 75,472 Direct -7.65% Disposed -7.5% (price as of 2026-08-20)
March 9, 2026 CF S 5,534 $116.21 $643,106 81,722 Direct -6.34% Disposed 8.8% (price as of 2026-08-20)
March 6, 2026 CF S 10,000 $119.01 $1,190,100 87,256 Direct -10.28% Disposed 6.2% (price as of 2026-08-20)
March 2, 2026 CF S 10b5-1 5,102 $105.99 $540,761 97,256 Direct -4.98% Disposed 19.3% (price as of 2026-08-20)
June 16, 2025 CF S 10b5-1 5,000 $100.71 $503,550 90,176 Direct -5.25% Disposed 25.5% (price as of 2026-08-20)
June 16, 2025 CF S 10b5-1 5,003 $101.00 $505,303 95,176 Direct -4.99% Disposed 25.2% (price as of 2026-08-20)
June 13, 2025 CF S 10b5-1 2,750 $98.34 $270,435 100,179 Direct -2.67% Disposed 28.6% (price as of 2026-08-20)
June 13, 2025 CF S 10b5-1 13,250 $97.32 $1,289,490 102,929 Direct -11.40% Disposed 29.9% (price as of 2026-08-20)
Jan. 13, 2025 CF S 10b5-1 3,000 $95.00 $285,000 105,754 Direct -2.76% Disposed 33.1% (price as of 2026-08-20)
Nov. 20, 2024 CF S 3,000 $88.00 $264,000 103,155 Direct -2.83% Disposed 43.7% (price as of 2026-08-20)
Oct. 4, 2024 CF S 10b5-1 3,000 $90.00 $270,000 106,155 Direct -2.75% Disposed 40.5% (price as of 2026-08-20)
March 12, 2024 CF S 6,000 $85.00 $510,000 64,030 Direct -8.57% Disposed 48.8% (price as of 2026-08-20)
Nov. 15, 2023 CF S 5,000 $80.10 $400,500 37,539 Direct -11.75% Disposed 57.9% (price as of 2026-08-20)
Sept. 1, 2023 CF S 5,000 $78.45 $392,250 42,539 Direct -10.52% Disposed 61.2% (price as of 2026-08-20)
May 31, 2023 CF S 15,000 $60.99 $914,850 47,539 Direct -23.99% Disposed 107.3% (price as of 2026-08-20)
Aug. 24, 2022 CF S 20,964 $112.01 $2,348,178 41,424 Direct -33.60% Disposed 12.9% (price as of 2026-08-20)
March 4, 2022 CF S 20,000 $90.03 $1,800,600 62,388 Direct -24.28% Disposed 40.4% (price as of 2026-08-20)
Feb. 28, 2022 CF S 97,520 $80.36 $7,836,707 61,424 Direct -61.35% Disposed 57.3% (price as of 2026-08-20)
Feb. 2, 2022 CF S 10b5-1 26,890 $75.00 $2,016,750 66,037 Direct -28.94% Disposed 68.6% (price as of 2026-08-20)
Dec. 22, 2021 CF S 10b5-1 70,080 $70.00 $4,905,600 63,296 Direct -52.54% Disposed 80.6% (price as of 2026-08-20)
Dec. 21, 2021 CF S 10b5-1 5,000 $68.00 $340,000 63,296 Direct -7.32% Disposed 85.9% (price as of 2026-08-20)
Dec. 21, 2021 CF S 10b5-1 40,000 $68.00 $2,720,000 68,296 Direct -36.94% Disposed 85.9% (price as of 2026-08-20)
Dec. 16, 2021 CF S 10b5-1 25,000 $65.00 $1,625,000 68,296 Direct -26.80% Disposed 94.5% (price as of 2026-08-20)
Nov. 12, 2021 CF S 10b5-1 10,000 $65.00 $650,000 73,296 Direct -12.01% Disposed 94.5% (price as of 2026-08-20)
Oct. 1, 2021 CF S 10b5-1 49,400 $60.00 $2,964,000 83,296 Direct -37.23% Disposed 110.7% (price as of 2026-08-20)
Oct. 1, 2021 CF S 10b5-1 30,475 $58.00 $1,767,550 132,696 Direct -18.68% Disposed 118.0% (price as of 2026-08-20)
May 18, 2021 CF S 10b5-1 5,000 $56.00 $280,000 88,296 Direct -5.36% Disposed 125.8% (price as of 2026-08-20)
May 7, 2021 CF S 10b5-1 27,450 $53.00 $1,454,850 93,296 Direct -22.73% Disposed 138.6% (price as of 2026-08-20)
May 7, 2021 CF S 10b5-1 5,000 $54.00 $270,000 93,296 Direct -5.09% Disposed 134.1% (price as of 2026-08-20)
May 6, 2021 CF S 10b5-1 5,000 $52.00 $260,000 98,296 Direct -4.84% Disposed 143.2% (price as of 2026-08-20)
March 11, 2021 CF S 22,497 $50.84 $1,143,747 103,296 Direct -17.88% Disposed 148.7% (price as of 2026-08-20)
Nov. 21, 2019 CF S 13,000 $45.50 $591,500 82,072 Direct -13.67% Disposed 177.9% (price as of 2026-08-20)
Aug. 29, 2019 CF S 21,000 $48.21 $1,012,410 82,072 Direct -20.37% Disposed 162.3% (price as of 2026-08-20)
Aug. 7, 2019 CF S 21,600 $50.16 $1,083,456 82,072 Direct -20.83% Disposed 152.1% (price as of 2026-08-20)

Showing latest 100 of 156 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
Feb. 28, 2022 CF Employee Stock Option (right to buy) Common Stock, par value $0.01 per share (36,445) $62.25 March 3, 2025 36,445 Disposed
Feb. 28, 2022 CF Employee Stock Option (right to buy) Common Stock, par value $0.01 per share (61,075) $51.17 March 3, 2024 61,075 Disposed
Feb. 2, 2022 CF Employee Stock Option (right to buy) Common Stock, par value $0.01 per share (26,890) $36.19 March 3, 2026 26,890 Disposed
Dec. 22, 2021 CF Employee Stock Option (right to buy) Common Stock, par value $0.01 per share (20,000) $36.19 March 3, 2026 20,000 Disposed
Dec. 22, 2021 CF Employee Stock Option (right to buy) Common Stock, par value $0.01 per share (50,080) $30.95 March 3, 2027 50,080 Disposed
Dec. 21, 2021 CF Employee Stock Option (right to buy) Common Stock, par value $0.01 per share (20,000) $36.19 March 3, 2026 20,000 Disposed
Dec. 21, 2021 CF Employee Stock Option (right to buy) Common Stock, par value $0.01 per share (20,000) $30.95 March 3, 2027 20,000 Disposed
Dec. 16, 2021 CF Employee Stock Option (right to buy) Common Stock, par value $0.01 per share (20,000) $30.95 March 3, 2027 20,000 Disposed
Oct. 1, 2021 CF Employee Stock Option (right to buy) Common Stock, par value $0.01 per share (44,400) $38.02 Aug. 12, 2023 44,400 Disposed
Oct. 1, 2021 CF Employee Stock Option (right to buy) Common Stock, par value $0.01 per share (30,475) $41.59 Aug. 10, 2022 30,475 Disposed
May 7, 2021 CF Employee Stock Option (right to buy) Common Stock, par value $0.01 per share (27,450) $29.92 Aug. 10, 2021 27,450 Disposed
Aug. 7, 2020 CF Employee Stock Option (right to buy) Common Stock, par value $0.01 per share (15,500) $16.26 Aug. 10, 2020 15,500 Disposed
Nov. 21, 2019 CF Employee Stock Option (right to buy) Common Stock, par value $0.01 per share (13,000) $16.26 Aug. 10, 2020 13,000 Disposed
Aug. 29, 2019 CF Employee Stock Option (right to buy) Common Stock, par value $0.01 per share (21,000) $16.26 Aug. 10, 2020 21,000 Disposed
Aug. 7, 2019 CF Employee Stock Option (right to buy) Common Stock, par value $0.01 per share (21,600) $16.41 Aug. 10, 2019 21,600 Disposed
June 3, 2019 CF Employee Stock Option (right to buy) Common Stock, par value $0.01 per share (6,000) $16.41 Aug. 10, 2019 6,000 Disposed
Nov. 8, 2018 CF Employee Stock Option (right to buy) Common Stock, par value $0.01 per share (1,900) — Aug. 10, 2019 1,900 Disposed
Aug. 10, 2018 CF Employee Stock Option (right to buy) Common Stock, par value $0.01 per share (10,675) $9.73 Dec. 11, 2018 10,675 Disposed
May 14, 2018 CF Employee Stock Option (right to buy) Common Stock, par value $0.01 per share (13,000) $9.73 Dec. 11, 2018 13,000 Disposed
Nov. 21, 2017 CF Employee Stock Option (right to buy) Common Stock, par value $0.01 per share (7,500) — Dec. 11, 2018 7,500 Disposed
March 3, 2017 CF Employee Stock Option (right to buy) Common stock, par value $0.01 per share (90,080) $30.95 March 3, 2027 90,080 Acquired
March 3, 2016 CF Employee Stock Option (right to buy) Common stock, par value $0.01 per share (66,890) $36.19 March 3, 2026 66,890 Acquired
March 3, 2015 CF Employee Stock Option (right to buy) Common stock, par value $0.01 per share (7,289) $311.23 March 3, 2025 7,289 Acquired
March 3, 2014 CF Employee Stock Option (right to buy) Common stock, par value $0.01 per share (12,215) $255.87 March 3, 2024 12,215 Acquired
Dec. 2, 2013 CF Employee Stock Option (right to buy) Common Stock, par value $.01 per share (175) $48.64 Dec. 11, 2018 175 Disposed
Aug. 12, 2013 CF Employee Stock Option (right to buy) Common stock, par value $0.01 per share (8,880) $190.12 Aug. 12, 2023 8,880 Acquired
Aug. 10, 2012 CF Employee Stock Option (right to buy) Common stock, par value $0.01 per share (6,095) — Aug. 10, 2022 6,095 Acquired
Aug. 10, 2012 CF Employee Stock Option (right to buy) Common stock, par value $0.01 per share (6,095) $209.75 Aug. 10, 2022 6,095 Acquired
Aug. 10, 2011 CF Employee Stock Option (right to buy) Common stock, par value $0.01 per share (5,490) $149.59 Aug. 10, 2021 5,490 Acquired
Aug. 10, 2010 CF Employee Stock Option (right to buy) Common stock, par value $0.01 per share (9,900) $81.30 Aug. 10, 2020 9,900 Acquired
Aug. 10, 2009 CF Employee Stock Option (right to buy) Common stock, par value $0.01 per share (5,900) $82.03 Aug. 10, 2019 5,900 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.

Date Ticker Security Shares Ownership
Jan. 5, 2009 CF Common stock, par value $0.01 per share 1,900 Direct
Jan. 5, 2009 CF Employee Stock Option (right to buy)→ Common stock, par value $0.01 per share (6,410) 6,410 Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

CF

President, Sales, Market Development and Supply Chain
Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2025 $725,000 — $2,035,470 — $1,232,173 $30,282 $254,196 $4,277,122
2024 $700,000 — $5,416,492 — $749,700 $15,613 $196,875 $7,078,680
2023 $670,000 — $2,154,976 — $649,632 $20,132 $133,790 $3,628,530

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.