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JG

Jerrold B. Grossman

ADMA
DIRECTOR · ADMA BIOLOGICS, INC. · CIK 0001542519
FILING MIX · LIFETIME84%/16%
BUYS
31
SELLS
6
TOTAL VALUE
$4.85M
COMPANIES
1
ACTIVE SINCE
Feb 2020
HOLDINGS NOW
520,284
AVG SELL PX
$11.15
TRADE KIND
SHOWING 37 / 37
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
11 backtested trades · 8 horizons · 7 pending
Forward-return performance of every backtestable P/S trade by Jerrold B. Grossman, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d11+72.73%+2.67%+0.51%+2.16%+3.04%—
14d11+27.27%-5.23%+0.06%-6.27%-7.13%—
30d11+27.27%-10.74%-2.70%-8.03%-7.02%—
60d11(1 pending)+20.00%-15.56%+1.08%-16.65%-17.98%—
90d11(1 pending)+20.00%-19.06%+4.27%-23.33%-31.95%—
180d11(1 pending)+50.00%+0.22%+13.57%-13.35%-18.34%—
1y11(1 pending)+20.00%-0.56%+28.61%-29.17%-81.99%—
2y11(3 pending)+25.00%+35.71%+31.46%+4.25%-37.69%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
ADMA · 520,284 shares · as of May 27, 2026
0151,042302,083453,125604,166202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 31 buys / 6 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ADMA
ADMA BIOLOGICS, INC.
PURCHASE
6,400$7.91$50.6K520,284May 27, 2026May 28, 2026 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASE
12,500$8.01$100.1K513,884May 12, 2026May 14, 2026 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASE
12,500$8.01$100.1K501,384May 11, 2026May 12, 2026 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASEGRANT
Stock grant
10,690——488,884Feb 9, 2026Feb 11, 2026 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASEGRANT
Stock grant
17,730——17,730Feb 9, 2026Feb 11, 2026 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASE
10,000$5.00$50.0K488,194Jun 9, 2025Jun 10, 2025 ↗View →
ADMA
ADMA BIOLOGICS, INC.
SALE
10,000$21.31$213.1K478,194Jun 9, 2025Jun 10, 2025 ↗View →
ADMA
ADMA BIOLOGICS, INC.
SALE
10,000——0Jun 9, 2025Jun 10, 2025 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASEGRANT
Stock grant
10,889——478,194Feb 19, 2025Feb 21, 2025 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASEGRANT
Stock grant
16,279——16,279Feb 19, 2025Feb 21, 2025 ↗View →
ADMA
ADMA BIOLOGICS, INC.
SALE
9,000$10.80$97.2K0Aug 29, 2024Aug 30, 2024 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASE
9,000$5.96$53.6K595,166Aug 29, 2024Aug 30, 2024 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASE
9,000$10.80$97.2K604,166Aug 29, 2024Aug 30, 2024 ↗View →
ADMA
ADMA BIOLOGICS, INC.
SALE
136,861$17.27$2.36M467,305Aug 29, 2024Aug 30, 2024 ↗View →
ADMA
ADMA BIOLOGICS, INC.
SALE
118,861$3.66$435.0K0Aug 29, 2024Aug 30, 2024 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASE
118,861$3.66$435.0K586,166Aug 29, 2024Aug 30, 2024 ↗View →
ADMA
ADMA BIOLOGICS, INC.
SALE
9,000$5.96$53.6K0Aug 29, 2024Aug 30, 2024 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASEGRANT
Stock grant
37,541——37,541Feb 26, 2024Feb 28, 2024 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASEGRANT
Stock grant
24,040——467,305Feb 26, 2024Feb 28, 2024 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASE
130,000$3.71$482.1K443,265Aug 30, 2023Aug 30, 2023 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASEGRANT
Stock grant
51,630——51,630Mar 6, 2023Mar 8, 2023 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASEGRANT
Stock grant
25,815——313,265Mar 6, 2023Mar 8, 2023 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASEGRANT
Stock grant
26,586——287,450Mar 7, 2022Mar 9, 2022 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASEGRANT
Stock grant
53,172——53,172Mar 7, 2022Mar 9, 2022 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASE
100,000$1.00$100.0K260,864Oct 25, 2021Oct 25, 2021 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASEGRANT
Stock grant
55,000——55,000Feb 25, 2021Mar 1, 2021 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASE
5,000$2.22$11.1K160,864Sep 10, 2020Sep 11, 2020 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASE
5,000$2.56$12.8K155,564Aug 21, 2020Aug 25, 2020 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASE
300$2.62$786155,864Aug 21, 2020Aug 25, 2020 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASE
200$2.87$574140,564Aug 12, 2020Aug 13, 2020 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASE
5,000$2.89$14.4K145,564Aug 12, 2020Aug 13, 2020 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASE
5,000$2.90$14.5K150,564Aug 12, 2020Aug 13, 2020 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASEGRANT
Stock grant
7,500——140,364Feb 28, 2020Mar 3, 2020 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASEGRANT
Stock grant
15,000——15,000Feb 28, 2020Mar 3, 2020 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASEGRANT
Stock grant
7,500——140,364Feb 28, 2020May 1, 2020 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASE
22,857$3.50$80.0K132,864Feb 11, 2020Feb 11, 2020 ↗View →
ADMA
ADMA BIOLOGICS, INC.
PURCHASE
22,857$3.50$80.0K22,857Feb 11, 2020Feb 11, 2020 ↗View →
Other insiders · ADMA
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About this filer
CIK 0001542519
ROLE
Director
PRIMARY
ADMA
COMPANIES
1
ACTIVE SINCE
Feb 2020
MARKETPEEL · /INSIDER/0001542519DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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