Mark R Ciarfella

CIK 1504654 · View on SEC EDGAR ↗

Insider

First SEC filing: Nov. 3, 2010 · Latest: Nov. 3, 2010

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 86 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

86 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Dec. 9, 2024 SBAC S 3,545 $224.33 $795,250 33,588 Direct -9.55% Disposed -18.5% (price as of 2026-08-21)
Nov. 29, 2023 SBAC S 5,000 $245.05 $1,225,250 29,005 Direct -14.70% Disposed -25.4% (price as of 2026-08-21)
Nov. 10, 2023 SBAC S 1,000 $217.62 $217,620 29,005 Direct -3.33% Disposed -16.0% (price as of 2026-08-21)
Aug. 15, 2022 SBAC S 8,213 $355.50 $2,919,722 23,884 Direct -25.59% Disposed -48.6% (price as of 2026-08-21)
Aug. 5, 2022 SBAC S 5,760 $343.94 $1,981,094 23,884 Direct -19.43% Disposed -46.9% (price as of 2026-08-21)
June 7, 2022 SBAC S 1,000 $338.05 $338,050 23,884 Direct -4.02% Disposed -45.9% (price as of 2026-08-21)
Dec. 15, 2021 SBAC S 3,000 $370.00 $1,110,000 21,052 Direct -12.47% Disposed -50.6% (price as of 2026-08-21)
Dec. 13, 2021 SBAC S 3,000 $365.67 $1,097,010 21,052 Direct -12.47% Disposed -50.0% (price as of 2026-08-21)
Aug. 19, 2021 SBAC S 6,759 $358.01 $2,419,790 21,018 Direct -24.33% Disposed -49.0% (price as of 2026-08-21)
Aug. 11, 2021 SBAC S 2,377 $345.00 $820,065 21,018 Direct -10.16% Disposed -47.0% (price as of 2026-08-21)
June 10, 2021 SBAC S 6,000 $320.01 $1,920,060 20,980 Direct -22.24% Disposed -42.9% (price as of 2026-08-21)
June 3, 2020 SBAC S 3,395 $320.04 $1,086,536 18,584 Direct -15.45% Disposed -42.9% (price as of 2026-08-21)
June 2, 2020 SBAC S 43 $320.00 $13,760 18,584 Direct -0.23% Disposed -42.9% (price as of 2026-08-21)
June 1, 2020 SBAC S 3,600 $320.01 $1,152,036 18,584 Direct -16.23% Disposed -42.9% (price as of 2026-08-21)

Showing latest 100 of 335 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
Dec. 19, 2024 SBAC Restricted Stock units Class A Common Stock (179) — — 179 Disposed
Dec. 9, 2024 SBAC Stock Options (Right to Buy) Class A Common Stock (3,545) $182.30 March 6, 2026 3,545 Disposed
March 6, 2024 SBAC Restricted Stock Units Class A Common Stock (714) — — 714 Disposed
March 6, 2024 SBAC Restricted Stock units Class A Common Stock (4,772) — — 4,772 Acquired
March 6, 2024 SBAC Performance Restricted Stock Units Class A Common Stock (4,771) — — 4,771 Acquired
March 4, 2024 SBAC Restricted Stock Units Class A Common Stock (677) — — 677 Disposed
March 4, 2024 SBAC Performance Restricted Stock Units Class A Common Stock (2,030) — — 2,030 Disposed
March 4, 2024 SBAC Restricted Stock Units Class A Common Stock (610) — — 610 Disposed
Nov. 29, 2023 SBAC Stock Options (Right to Buy) Class A Common Stock (5,000) $182.30 March 6, 2026 5,000 Disposed
March 6, 2023 SBAC Performance Restricted Stock Units Class A Common Stock (2,144) — — 2,144 Acquired
March 6, 2023 SBAC Performance Restricted Stock UnitsP Class A Common Stock (2,144) — — 2,144 Acquired
March 6, 2023 SBAC Restricted Stock Units Class A Common Stock (2,144) — — 2,144 Acquired
March 6, 2023 SBAC Restricted Stock Units Class A Common Stock (693) — — 693 Disposed
March 4, 2023 SBAC Restricted Stock Units Class A Common Stock (610) — — 610 Disposed
March 4, 2023 SBAC Restricted Stock Units Class A Common Stock (677) — — 677 Disposed
Feb. 25, 2023 SBAC Performance Restricted Stock Units Class A Common Stock (1,960) — — 1,960 Disposed
Feb. 25, 2023 SBAC Performance Restricted Stock Units Class A Common Stock (1,960) — — 1,960 Disposed
Feb. 25, 2023 SBAC Restricted Stock Units Class A Common Stock (654) — — 654 Disposed
Aug. 15, 2022 SBAC Stock Options (Right to Buy) Class A Common Stock (8,213) $182.30 March 6, 2026 8,213 Disposed
Aug. 5, 2022 SBAC Stock Options (Right to Buy) Class A Common Stock (5,760) $156.50 March 6, 2025 5,760 Disposed
June 7, 2022 SBAC Stock Options (Right to Buy) Class A Common Stock (1,000) $156.50 March 6, 2025 1,000 Disposed
March 6, 2022 SBAC Restricted Stock Units Class A Common Stock (693) — — 693 Disposed
March 6, 2022 SBAC Restricted Stock Units Class A Common Stock (705) — — 705 Disposed
March 4, 2022 SBAC Performance Restricted Stock Units Class A Common Stock (1,831) — — 1,831 Acquired
March 4, 2022 SBAC Performance Restricted Stock Units Class A Common Stock (1,831) — — 1,831 Acquired
March 4, 2022 SBAC Restricted Stock Units Class A Common Stock (1,831) — — 1,831 Acquired
March 4, 2022 SBAC Restricted Stock Units Class A Common Stock (676) — — 676 Disposed
Feb. 25, 2022 SBAC Restricted Stock Units Class A Common Stock (653) — — 653 Disposed
Dec. 15, 2021 SBAC Stock Options (Right to Buy) Class A Common Stock (3,000) $182.30 March 6, 2026 3,000 Disposed
Dec. 13, 2021 SBAC Stock Options (Right to Buy) Class A Common Stock (3,000) $182.30 March 6, 2026 3,000 Disposed
Aug. 19, 2021 SBAC Stock Options (Right to Buy) Class A Common Stock (6,759) $156.50 March 6, 2025 6,759 Disposed
Aug. 11, 2021 SBAC Stock Options (Right to Buy) Class A Common Stock (2,377) $115.17 March 6, 2024 2,377 Disposed
June 10, 2021 SBAC Stock Options (Right to Buy) Class A Common Stock (6,000) $115.17 March 6, 2024 6,000 Disposed
March 6, 2021 SBAC Restricted Stock Units Class A Common Stock (693) — — 693 Disposed
March 6, 2021 SBAC Restricted Stock Units Class A Common Stock (704) — — 704 Disposed
March 6, 2021 SBAC Restricted Stock Units Class A Common Stock (860) — — 860 Disposed
March 4, 2021 SBAC Performance Restricted Stock Units Class A Common Stock (2,030) — — 2,030 Acquired
March 4, 2021 SBAC Performance Restricted Stock Units Class A Common Stock (2,030) — — 2,030 Acquired
March 4, 2021 SBAC Restricted Stock Units Class A Common Stock (2,030) — — 2,030 Acquired
Feb. 25, 2021 SBAC Restricted Stock Units Class A Common Stock (653) — — 653 Disposed
June 3, 2020 SBAC Stock Options (Right to Buy) Class A Common Stock (3,395) $182.30 March 6, 2026 3,395 Disposed
June 2, 2020 SBAC Stock Options (Right to Buy) Class A Common Stock (43) $182.30 March 6, 2026 43 Disposed
June 1, 2020 SBAC Stock Options (Right to Buy) Class A Common Stock (3,600) $182.30 March 6, 2026 3,600 Disposed
May 28, 2020 SBAC Stock Options (Right to Buy) Class A Common Stock (3,380) $156.50 March 6, 2025 3,380 Disposed
May 27, 2020 SBAC Stock Options (Right to Buy) Class A Common Stock (3,379) $156.50 March 6, 2025 3,379 Disposed
May 22, 2020 SBAC Stock Options (Right to Buy) Class A Common Stock (1,035) $96.58 March 4, 2023 1,035 Disposed
April 8, 2020 SBAC Stock Options (Right to Buy) Class A Common Stock (8,377) $115.17 March 6, 2024 8,377 Disposed
March 6, 2020 SBAC Restricted Stock Units Class A Common Stock (692) — — 692 Disposed
March 6, 2020 SBAC Restricted Stock Units Class A Common Stock (705) — — 705 Disposed
March 6, 2020 SBAC Restricted Stock Units Class A Common Stock (860) — — 860 Disposed
March 4, 2020 SBAC Restricted Stock Units Class A Common Stock (944) — — 944 Disposed
March 4, 2020 SBAC Stock Options (Right to Buy) Class A Common Stock (8,620) $96.58 March 4, 2023 8,620 Disposed
Feb. 25, 2020 SBAC Performance Restricted Stock Units Class A Common Stock (1,960) — — 1,960 Acquired
Feb. 25, 2020 SBAC Performance Restricted Stock Units Class A Common Stock (1,960) — — 1,960 Acquired
Feb. 25, 2020 SBAC Restricted Stock Units Class A Common Stock (1,960) — — 1,960 Acquired
May 3, 2019 SBAC Stock Options (Right to Buy) Class A Common Stock (3,379) $156.50 March 6, 2025 3,379 Disposed
May 2, 2019 SBAC Stock Options (Right to Buy) Class A Common Stock (3,380) $156.50 March 6, 2025 3,380 Disposed
March 7, 2019 SBAC Stock Options (Right to Buy) Class A Common Stock (6,225) $96.58 March 4, 2023 6,225 Disposed
March 7, 2019 SBAC Stock Options (Right to Buy) Class A Common Stock (8,377) $115.17 March 6, 2024 8,377 Disposed
March 6, 2019 SBAC Restricted Stock Units Class A Common Stock (2,771) — — 2,771 Acquired
March 6, 2019 SBAC Stock Options (Right to Buy) Class A Common Stock (29,796) $182.30 March 6, 2026 29,796 Acquired
March 6, 2019 SBAC Restricted Stock Units Class A Common Stock (704) — — 704 Disposed
March 6, 2019 SBAC Restricted Stock Units Class A Common Stock (860) — — 860 Disposed
March 6, 2019 SBAC Stock Options (Right to Buy) Class A Common Stock (3,430) $96.58 March 4, 2023 3,430 Disposed
March 6, 2019 SBAC Stock Options (Right to Buy) Class A Common Stock (2,417) $124.59 March 5, 2022 2,417 Disposed
March 5, 2019 SBAC Restricted Stock Units Class A Common Stock (753) — — 753 Disposed
March 5, 2019 SBAC Stock Options (Right to Buy) Class A Common Stock (5,101) $124.59 March 5, 2022 4,101 Disposed
March 5, 2019 SBAC Stock Options (Right to Buy) Class A Common Stock (1,046) $95.53 March 6, 2021 1,046 Disposed
March 5, 2019 SBAC Stock Options (Right to Buy) Class A Common Stock (1) $47.52 March 6, 2019 1 Disposed
March 4, 2019 SBAC Restricted Stock Units Class A Common Stock (944) — — 944 Disposed
Nov. 8, 2018 SBAC Stock Options (Right to Buy) Class A Common Stock (8,377) $115.17 March 6, 2024 8,377 Disposed
June 21, 2018 SBAC Stock Options (Right to Buy) Class A Common Stock (3,716) $96.58 March 4, 2023 3,716 Disposed
June 21, 2018 SBAC Stock Options (Right to Buy) Class A Common Stock (22,551) $124.59 March 5, 2022 22,551 Disposed
June 13, 2018 SBAC Stock Options (Right to Buy) Class A Common Stock (1,850) $96.58 March 4, 2023 1,850 Disposed
June 5, 2018 SBAC Stock Options (Right to Buy) Class A Common Stock (4,089) $96.58 March 4, 2023 4,089 Disposed
June 5, 2018 SBAC Stock Options (Right to Buy) Class A Common Stock (6,528) $95.53 March 6, 2021 6,528 Disposed
March 6, 2018 SBAC Restricted Stock Units Class A Common Stock (2,818) — — 2,818 Acquired
March 6, 2018 SBAC Stock Options (Right to Buy) Class A Common Stock (27,037) $156.50 March 6, 2025 27,037 Acquired
March 6, 2018 SBAC Restricted Stock Units Class A Common Stock (859) — — 859 Disposed
March 6, 2018 SBAC Restricted Stock Units Class A Common Stock (769) — — 769 Disposed
March 5, 2018 SBAC Restricted Stock Units Class A Common Stock (752) — — 752 Disposed
March 4, 2018 SBAC Restricted Stock Units Class A Common Stock (944) — — 944 Disposed
Aug. 4, 2017 SBAC Stock Options (Right to Buy) Class A Common Stock (9,655) $96.58 March 4, 2023 9,655 Disposed
May 5, 2017 SBAC Stock Options (Right to Buy) Class A Common Stock (12,218) $95.53 March 6, 2021 12,218 Disposed
May 4, 2017 SBAC Stock Options (Right to Buy) Class A Common Stock (2,929) $95.53 March 6, 2021 2,929 Disposed
March 6, 2017 SBAC Restricted Stock Units Class A Common Stock (3,439) — — 3,439 Acquired
March 6, 2017 SBAC Stock Options (Right to Buy) Class A Common Stock (33,508) $115.17 March 6, 2024 33,508 Acquired
March 6, 2017 SBAC Restricted Stock Units Class A Common Stock (768) — — 768 Disposed
March 6, 2017 SBAC Restricted Stock Units Class A Common Stock (743) — — 743 Disposed
March 6, 2017 SBAC Stock Options (Right to Buy) Class A Common Stock (11,346) $72.99 March 6, 2020 11,346 Disposed
March 5, 2017 SBAC Restricted Stock Units Class A Common Stock (752) — — 752 Disposed
March 4, 2017 SBAC Restricted Stock Units Class A Common Stock (943) — — 943 Disposed
March 15, 2016 SBAC Stock Options (Right to Buy) Class A Common Stock (3,950) $47.52 March 6, 2019 3,950 Disposed
March 6, 2016 SBAC Restricted Stock Units Class A Common Stock (768) — — 768 Disposed
March 6, 2016 SBAC Restricted Stock Units Class A Common Stock (743) — — 743 Disposed
March 6, 2016 SBAC Restricted Stock Units Class A Common Stock (874) — — 874 Disposed
March 5, 2016 SBAC Restricted Stock Units Class A Common Stock (752) — — 752 Disposed
March 4, 2016 SBAC Restricted Stock Units Class A Common Stock (3,775) — — 3,775 Acquired
March 4, 2016 SBAC Stock Options (Right to Buy) Class A Common Stock (38,620) $96.58 March 4, 2023 38,620 Acquired
June 18, 2015 SBAC Stock Options (Right to Buy) Class A Common Stock (7,573) $95.53 March 6, 2021 7,573 Disposed

Showing latest 100 of 144 transactions

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
Nov. 3, 2010 SBAC Stock Options (Right to Buy)→ Class A Common Stock (25,000) 25,000 Direct
Nov. 3, 2010 SBAC Stock Options (Right to Buy)→ Class A Common Stock (16,000) 16,000 Direct
Nov. 3, 2010 SBAC Stock Options (Right to Buy)→ Class A Common Stock (29,213) 29,213 Direct
Nov. 3, 2010 SBAC Stock Options (Right to Buy)→ Class A Common Stock (12,626) 12,626 Direct
Nov. 3, 2010 SBAC Restricted Stock Units→ Class A Common Stock (2,881) 2,881 Direct

Compensation (DEF 14A)

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

SBAC

President - U.S. Operations
Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2025 $560,000 — $2,630,314 — $565,040 — $29,440 $3,784,794
2024 $520,000 — $2,107,016 — $471,120 — $22,432 $3,120,568
2023 $480,000 — $1,679,224 — $524,160 — $20,908 $2,704,292

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