David Sandberg

CIK 1423093 · View on SEC EDGAR ↗

Insider

First SEC filing: March 2, 2020 · Latest: March 2, 2020

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 8 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

8 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
March 25, 2013 RFIL S 43,365 $6.70 $290,546 200 Indirect -99.54% Disposed 71.4% (price as of 2026-08-20)
March 25, 2013 RFIL S 29,307 $6.70 $196,357 0 Indirect -100.00% Disposed 71.4% (price as of 2026-08-20)
March 19, 2013 RFIL S 10b5-1 11,979 $6.14 $73,551 43,565 Indirect -21.57% Disposed 87.1% (price as of 2026-08-20)
March 19, 2013 RFIL S 10b5-1 8,021 $6.14 $49,249 29,307 Indirect -21.49% Disposed 87.1% (price as of 2026-08-20)
March 18, 2013 RFIL S 10b5-1 34,583 $6.28 $217,181 55,544 Indirect -38.37% Disposed 82.9% (price as of 2026-08-20)
March 18, 2013 RFIL S 10b5-1 23,152 $6.28 $145,395 37,328 Indirect -38.28% Disposed 82.9% (price as of 2026-08-20)
March 15, 2013 RFIL S 10b5-1 23,661 $6.13 $145,042 90,127 Indirect -20.79% Disposed 87.4% (price as of 2026-08-20)
March 15, 2013 RFIL S 10b5-1 15,839 $6.13 $97,093 60,480 Indirect -20.75% Disposed 87.4% (price as of 2026-08-20)
March 14, 2013 RFIL S 10b5-1 16,173 $6.01 $97,200 113,788 Indirect -12.44% Disposed 91.1% (price as of 2026-08-20)
March 14, 2013 RFIL S 10b5-1 10,827 $6.01 $65,070 76,319 Indirect -12.42% Disposed 91.1% (price as of 2026-08-20)
March 13, 2013 RFIL S 10b5-1 32,346 $6.16 $199,251 129,961 Indirect -19.93% Disposed 86.4% (price as of 2026-08-20)
March 13, 2013 RFIL S 10b5-1 21,654 $6.16 $133,389 87,146 Indirect -19.90% Disposed 86.4% (price as of 2026-08-20)
March 12, 2013 RFIL S 10b5-1 75,074 $6.28 $471,465 162,307 Indirect -31.63% Disposed 82.9% (price as of 2026-08-20)
March 12, 2013 RFIL S 10b5-1 50,259 $6.28 $315,627 108,800 Indirect -31.60% Disposed 82.9% (price as of 2026-08-20)
March 11, 2013 RFIL S 10b5-1 19,765 $5.96 $117,799 237,381 Indirect -7.69% Disposed 92.7% (price as of 2026-08-20)
March 11, 2013 RFIL S 10b5-1 13,231 $5.96 $78,857 159,059 Indirect -7.68% Disposed 92.7% (price as of 2026-08-20)
March 8, 2013 RFIL S 10b5-1 4,264 $5.93 $25,286 257,146 Indirect -1.63% Disposed 93.7% (price as of 2026-08-20)
March 8, 2013 RFIL S 10b5-1 2,854 $5.93 $16,924 172,290 Indirect -1.63% Disposed 93.7% (price as of 2026-08-20)
March 7, 2013 RFIL S 10b5-1 8,626 $5.87 $50,635 261,410 Indirect -3.19% Disposed 95.7% (price as of 2026-08-20)
March 7, 2013 RFIL S 10b5-1 5,774 $5.87 $33,893 175,144 Indirect -3.19% Disposed 95.7% (price as of 2026-08-20)
March 6, 2013 RFIL S 10b5-1 5,990 $5.87 $35,161 270,036 Indirect -2.17% Disposed 95.7% (price as of 2026-08-20)
March 6, 2013 RFIL S 10b5-1 4,010 $5.87 $23,539 180,918 Indirect -2.17% Disposed 95.7% (price as of 2026-08-20)
March 5, 2013 RFIL S 10b5-1 3,263 $5.83 $19,023 276,026 Indirect -1.17% Disposed 97.0% (price as of 2026-08-20)
March 5, 2013 RFIL S 10b5-1 2,185 $5.83 $12,739 184,928 Indirect -1.17% Disposed 97.0% (price as of 2026-08-20)
March 4, 2013 RFIL S 10b5-1 839 $5.82 $4,883 279,289 Indirect -0.30% Disposed 97.3% (price as of 2026-08-20)
March 4, 2013 RFIL S 10b5-1 561 $5.82 $3,265 187,113 Indirect -0.30% Disposed 97.3% (price as of 2026-08-20)
March 1, 2013 RFIL S 10b5-1 2,935 $5.84 $17,140 280,128 Indirect -1.04% Disposed 96.7% (price as of 2026-08-20)
March 1, 2013 RFIL S 10b5-1 1,965 $5.84 $11,476 187,674 Indirect -1.04% Disposed 96.7% (price as of 2026-08-20)
Feb. 28, 2013 RFIL S 10b5-1 659 $5.83 $3,842 283,063 Indirect -0.23% Disposed 97.0% (price as of 2026-08-20)
Feb. 28, 2013 RFIL S 10b5-1 441 $5.83 $2,571 189,639 Indirect -0.23% Disposed 97.0% (price as of 2026-08-20)
Feb. 27, 2013 RFIL S 10b5-1 5,570 $5.83 $32,473 283,722 Indirect -1.93% Disposed 97.0% (price as of 2026-08-20)
Feb. 27, 2013 RFIL S 10b5-1 3,730 $5.83 $21,746 190,080 Indirect -1.92% Disposed 97.0% (price as of 2026-08-20)
Feb. 20, 2013 RFIL S 10b5-1 8,685 $5.91 $51,328 289,292 Indirect -2.91% Disposed 94.3% (price as of 2026-08-20)
Feb. 20, 2013 RFIL S 10b5-1 5,815 $5.91 $34,367 193,810 Indirect -2.91% Disposed 94.3% (price as of 2026-08-20)
Feb. 19, 2013 RFIL S 10b5-1 44,326 $6.05 $268,172 297,977 Indirect -12.95% Disposed 89.8% (price as of 2026-08-20)
Feb. 19, 2013 RFIL S 10b5-1 29,674 $6.05 $179,528 199,625 Indirect -12.94% Disposed 89.8% (price as of 2026-08-20)
Feb. 15, 2013 RFIL S 10b5-1 8,985 $5.89 $52,922 342,303 Indirect -2.56% Disposed 95.0% (price as of 2026-08-20)
Feb. 15, 2013 RFIL S 10b5-1 6,015 $5.89 $35,428 229,299 Indirect -2.56% Disposed 95.0% (price as of 2026-08-20)
Feb. 14, 2013 RFIL S 10b5-1 1,198 $5.87 $7,032 351,288 Indirect -0.34% Disposed 95.7% (price as of 2026-08-20)
Feb. 14, 2013 RFIL S 10b5-1 802 $5.87 $4,708 235,314 Indirect -0.34% Disposed 95.7% (price as of 2026-08-20)
Feb. 13, 2013 RFIL S 10b5-1 4,758 $5.84 $27,787 352,486 Indirect -1.33% Disposed 96.7% (price as of 2026-08-20)
Feb. 13, 2013 RFIL S 10b5-1 3,185 $5.84 $18,600 236,116 Indirect -1.33% Disposed 96.7% (price as of 2026-08-20)
Feb. 11, 2013 RFIL S 10b5-1 3,723 $5.89 $21,928 357,244 Indirect -1.03% Disposed 95.0% (price as of 2026-08-20)
Feb. 11, 2013 RFIL S 10b5-1 2,492 $5.89 $14,678 239,301 Indirect -1.03% Disposed 95.0% (price as of 2026-08-20)
Feb. 8, 2013 RFIL S 10b5-1 3,894 $5.82 $22,663 360,967 Indirect -1.07% Disposed 97.3% (price as of 2026-08-20)
Feb. 8, 2013 RFIL S 10b5-1 2,606 $5.82 $15,167 241,793 Indirect -1.07% Disposed 97.3% (price as of 2026-08-20)
Feb. 7, 2013 RFIL S 10b5-1 5,990 $5.81 $34,802 364,861 Indirect -1.62% Disposed 97.7% (price as of 2026-08-20)
Feb. 7, 2013 RFIL S 10b5-1 4,010 $5.81 $23,298 244,399 Indirect -1.61% Disposed 97.7% (price as of 2026-08-20)
Jan. 25, 2013 RFIL S 9,135 $5.87 $53,622 370,851 Indirect -2.40% Disposed 95.7% (price as of 2026-08-20)
Jan. 25, 2013 RFIL S 6,115 $5.87 $35,895 248,409 Indirect -2.40% Disposed 95.7% (price as of 2026-08-20)
Jan. 24, 2013 RFIL S 6,050 $5.99 $36,240 379,986 Indirect -1.57% Disposed 91.7% (price as of 2026-08-20)
Jan. 24, 2013 RFIL S 4,050 $5.99 $24,260 254,524 Indirect -1.57% Disposed 91.7% (price as of 2026-08-20)
June 16, 2010 ASUR P 13,610 $2.75 $37,428 13,610 Direct Acquired 362.5% (price as of 2026-08-20)
June 16, 2010 ASUR P 39,056 $2.75 $107,404 151,141 Indirect +34.84% Acquired 362.5% (price as of 2026-08-20)
June 16, 2010 ASUR P 52,666 $2.75 $144,832 0 Indirect -100.00% Disposed 362.5% (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
Feb. 28, 2020 ASUR Stock Option (Option to Buy) Common Stock (5,000) $5.76 June 14, 2020 5,000 Acquired
Feb. 28, 2020 ASUR Stock Option (Option to Buy) Common Stock (5,000) $5.76 March 31, 2020 5,000 Disposed
Sept. 2, 2019 ASUR Stock Option (Option to Buy) Common Stock (5,000) $6.44 Sept. 2, 2024 5,000 Acquired
Aug. 24, 2018 ASUR Common Stock Options (Right to Buy) Common Stock ($0.01 par value) (10,000) $14.32 Aug. 24, 2023 10,000 Acquired
March 31, 2015 ASUR Stock Options (Right to Buy) Common Stock ($0.01 par value) (5,000) $5.76 March 31, 2020 5,000 Acquired
Aug. 30, 2012 RFIL Stock Option Common Stock (1,911) $4.12 Aug. 30, 2017 1,911 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
Sept. 19, 2011 RFIL Common Stock 624,510 Indirect
Sept. 11, 2009 ASUR Common Stock ($.01 par value) 3,201,523 Indirect